Navigation Radio Diagnostic Tips (08-08-44-010F)

Navigation Radio Diagnostic Tips

TECHNICAL SERVICE BULLETIN

SERVICE INFORMATION

Recent part reviews indicate that the majority of Navigation Radios returned for analysis do not test as defective. In many cases, published SI documents were available to correct the condition without the need for an exchange unit. The following Diagnostic Tips may assist with the proper diagnosis and repair of Navigation Radio Concerns.

For any Navigation Radio replaced, a copy of the Repair Order (RO) must be included with the returned radio. Be sure to document the customer's concern in detail, including unusual noises and what functions are affected. List any Diagnostic Trouble Codes (DTCs) on the RO.

Ensure the radio is sufficiently protected during shipping to prevent damage to the radio assembly.

Getting Started

Retrieve the Navigation Radio part number using the Tech 2®. Refer to Corporate Bulletin Number 04-08-44-005C - Utilizing Tech 2 to Retrieve Part Numbers for Radios, Compact Disc (CD) Changers and Instrument Panel Clusters (IPC). Use the table below to determine the appropriate Diagnostic Tips Review to follow based on the radio part number. Scroll down the bulletin to find the corresponding Diagnostic Tips Review.

Diagnostic Tips Review Table

Radio Part Number	Description	Diagnostic Tips Review Number
10329193	Rendezvous Delphi Legacy	2
10339128	XLR Denso Legacy	4
10345735	Rendezvous Delphi Legacy	2
10345765	XLR Denso Legacy	4
10348805	Rendezvous Delphi Legacy	2
10351123	Rendezvous Delphi Legacy	2
10352079	Rendezvous Delphi Legacy	2
10352578	Rendezvous Delphi Legacy	2
10353490	XLR Denso Legacy	4
10354743	Corvette Denso Legacy	4
10359362	CTS Delphi Legacy	4
10367292	9-7X Delphi Legacy	2
10373724	Montana SV6, RELAY, Terraza, Uplander Delphi Legacy	2
10373846	CTS Delphi Legacy	2
10373847	CTS Delphi Legacy	2
10377287	Midsize Utility, Fullsize Pickup and Utility Delphi Legacy	2
10377531	Midsize and Fullsize Utilities Delphi Legacy	2
10377613	STS Denso Legacy	4
10379717	XLR Denso Legacy	4
10386078	SRX Denso Legacy	4
10388269	Corvette Denso Legacy	4
10391240	Grand Prix Denso Legacy	4
10393988	Rendezvous Delphi Legacy	2
10394335	Midsize Utility, Fullsize Pickup and Utility Delphi Legacy	2
10396711	Acadia Delphi	1
10396713	OUTLOOK Delphi	1
10396750	OUTLOOK Delphi	1
10397545	Midsize Utility, Fullsize Pickup and Utility Delphi Legacy	2
10400199	Enclave Delphi	2
10400200	Enclave Delphi	1
15108421	Midsize and Fullsize Utilities, H2 Delphi Legacy	2
15118439	Midsize and Fullsize Utilities Delphi Legacy	2
15120706	Midsize and Fullsize Utilities, H2 Delphi Legacy	2
15142348	STS Denso Legacy	4
15147532	Corvette Denso Legacy	4
15182269	Midsize and Fullsize Utilities, H2 Delphi Legacy	2
15204334	Midsize and Fullsize Utilities, H2 Delphi Legacy	2
15204335	Midsize and Fullsize Utilities, H2 Delphi Legacy	2
15219365	CTS Delphi Legacy	2
15222145	Fullsize Pickup and Utility, Escalade Delphi Legacy	2
15229287	Fullsize Pickup and Utility Delphi Legacy	2
15229837	Rendezvous Delphi Legacy	4
15230099	Midsize and Fullsize Utilities Delphi Legacy	2
15233090	Corvette Denso Legacy	4
15233578	STS Denso Legacy	4
15246333	Rendezvous Delphi Legacy	2
15256169	STS Denso Legacy	4
15263014	Corvette Denso Legacy	4
15263106	Grand Prix Denso Legacy	4
15282636	XLR Denso Legacy	4
15290453	GMT 900 Denso	3
15290454	GMT 900 Denso	3
15292581	Corvette Denso Legacy	4
15294440	Midsize and Fullsize Utilities Delphi Legacy	2
15295140	SRX Denso Legacy	4
15791220	Corvette Denso Legacy	4
15792703	9-7X Delphi Legacy	2
15793847	STS Denso Legacy	4
15800000	Midsize Utility, Full Size Escalade Delphi Legacy	2
15800001	Midsize and Fullsize Utilities Delphi Legacy	2
15806582	Fullsize Pickup and Utility Escalade Delphi Legacy	2
15811289	Rendezvous Delphi Legacy	4
15813959	DTS Denso	3
15820017	Corvette Denso Legacy	4
15822568	GMT 900 Denso	3
15822569	GMT 900 Denso	3
15840825	DTS Denso	3
15850502	DTS Denso	3
15852294	XLR Denso Legacy	4
15852515	GMT 900 Denso	3
15852516	GMT 900 Denso	3
15869780	DTS Denso	3
15882766	Fullsize Pickup and Utility (except Cadillac) Denso	3
15882767	Fullsize Pickup and Utility (except Cadillac) Denso	3
15883246	9-7X Delphi Legacy	2
15883298	H3 Delphi Legacy	2
15896129	Escalade Delphi	1
15898536	Lucerne Delphi	1
15901844	SRX Denso	3
15904398	STS Denso Legacy	4
15906629	Acadia Delphi	1
15906630	Acadia Delphi	1
15906631	OUTLOOK Delphi	1
15906632	OUTLOOK Delphi	1
15912143	DTS Denso	3
15916596	Escalade Delphi	1
15921422	Enclave Delphi	1
15921423	Enclave Delphi	1
15924887	Lucerne Delphi	1
15932202	SRX Denso	3
15939015	STS Denso	3
15940102	Fullsize Pickup and Utility (except Cadillac) Denso	3
15940103	Fullsize Pickup and Utility (except Cadillac) Denso	3
15942542	Torrent Delphi	1
15942543	Equinox Delphi	1
15942546	VUE Delphi	1
15942547	Equinox Delphi	1
15942548	Torrent Delphi	1
20790838	GMT 900 Denso	3
20790839	GMT 900 Denso	3
20793373	CTS Alpine	5
25726565	STS Denso Legacy	4
25734875	DeVille Denso Legacy	4
25735674	CTS Delphi Legacy	2
25740295	CTS Delphi Legacy	2
25743430	DeVille Denso Legacy	4
25746714	CTS Delphi Legacy	2
25744040	DeVille Denso Legacy	4
25750936	CTS Delphi Legacy	2
25755059	Deville Denso Legacy	4
25764007	Deville Denso Legacy	4
25766997	CTS Delphi Legacy	2
25772902	SRX Denso Legacy	4
25795337	Escalade Delphi	1
25797598	SRX Denso	3
25797978	Fullsize Pickup and Utility (except Cadillac) Denso	3
25798198	Escalade Delphi	1
25801667	Acadia Delphi	1
25801668	Acadia Delphi	1
25801669	OUTLOOK Delphi	1
25801670	OUTLOOK Delphi	1
25801749	Lucerne Delphi	1
25810756	Lucerne Delphi	1
25812385	Lucerne Delphi	1
25815340	Acadia Delphi	1
25815341	OUTLOOK Delphi	1
25815693	DTS Denso	3
25816282	Enclave Delphi	1
25817032	H3 Delphi Legacy	2
25834072	Fullsize Pickup and Utility (except Cadillac) Denso	3
25834541	Fullsize Pickup and Utility (except Cadillac) Denso	3
25837571	SRX Denso	3
25845961	9-7X Delphi Legacy	2
25846054	H3 Delphi Legacy	2
25846420	Fullsize Pickup and Utility (except Cadillac) Denso	3
25846421	Fullsize Pickup and Utility (except Cadillac) Denso	3
25851426	SRX Denso	3
25851475	DTS Denso	3
25857364	Fullsize Pickup and Utility (except Cadillac) Hybrid Denso	3
25857365	Fullsize Pickup and Utility (except Cadillac) Hybrid Denso	3
25870775	Montana SV6, RELAY, Terraza, Uplander Delphi Legacy	2
25890527	Escalade Delphi	1
25897058	Acadia Delphi	1
25897059	Acadia Delphi	1
25897589	STS Denso Legacy	4
25901983	CTS Alpine	5
25913880	CTS Alpine	5
25925492	OUTLOOK Delphi	1
25925493	OUTLOOK Delphi	1
25925494	Enclave Delphi	1
25925495	Enclave Delphi	1
25925496	Acadia Delphi	1
25925497	Acadia Delphi	1
25925597	Lucerne Delphi	1
25925598	Lucerne Delphi	1
25926160	Equinox Delphi	1
25926161	Torrent Delphi	1
25926165	VUE Delphi	1
25951249	CTS Alpine	5
25966512	Fullsize Utility including Hybrid (except Cadillac) Denso	3
25966513	Fullsize Utility including Hybrid (except Cadillac) Denso	3
89046991	XLR Denso Legacy	4
89047287	XLR Denso Legacy	4

Diagnostic Tips Review #1 - Delphi Super Nav and Black Tie Nav

Navigation Map Concerns

1. Are other radio operations functioning properly? (Yes/No)
2. Will the radio accept and read a map disc with no errors?

   If No:

   • What is the Map DVD disc part number?
   • What are the specific NAV Error messages displayed?
   • Will the Map disc work in a similar vehicle?
   • Did the following bulletin or PI change the condition?
     • 08-08-44-013 Navigation Radio Intermittent Blank/Black Screen, Map Disc Read Errors, Features Not Accessible While Driving, Navigation Radio Resets Upon Startup (Update Navigation Radio Software)
     • PIT4329D Navigation Disc Replacement

   If Yes:

   • Is the navigation map displayed?
   • Is the system able to enter/choose destinations and run Route Guidance?
   • If the customer concern is accuracy, drive to the intersection and check the map for proper location.
     NOTE: Specific addresses are not always accurate. Address numbers in the MAP database may be equally spaced along roads and may not display the actual location.
   • Did the following bulletins and PI change the condition?
     • 08-08-44-023 Navigation Radio Not Displaying Accurate Vehicle Location After Radio Replacement
     • 07-08-44-026 Navigation System Has Old Map And/Or Voice Recognition Commands Do Not Work
     • PIT4369A Navigation System Gives Out Of Way Directions
3. Is the red "No GPS Signal" icon on constantly/frequently?

   If No:

   • Check for a faulty GPS antenna
   • If the GPS antenna checks good, then replace the radio.

   If Yes:

   • Confirm that the vehicle does not have aftermarket window tinting added. Some tinting interferes with GPS reception.
   • Are items placed on the center of the Instrument Panel (I/P) or attached to the windshield which could reduce GPS reception?
   • Has the GPS Antenna connection to the radio been checked?
   • Did the following bulletin and PI change the condition?
     • 08-08-44-027 Information on NAV Radios That Have A Weak Or No GPS Signal
     • PIC4611 Nav Radio is Inoperative or Inaccurate
4. Is the Nav/map operation intermittent?

   If Yes:

   • Has the MAP disc been checked for scratches, fingerprints, oils?
   • Has a known good correct part number MAP disc been tried in the radio?
   • Perform a "Two Button Press" to check the map drive software version (last 11 characters) to see if non-alphanumeric text is displayed.

     Two Button Press Procedure

     • Black Tie (All Except Escalade)- FM screen tuned to a non-RDS FM station, press and hold Menu and Config buttons.
     • SuperNAV (Escalade)- FM screen tuned to a non-RDS FM station, press and hold Menu and Seek-Up.
     • If necessary, press the Audio button to return to the FM screen to view the displayed text.
     • If non-alphanumeric text is displayed (Text Scrambled), the radio will need to be replaced due to an incorrect connector position internally. Refer to Bulletin 08-08-44-013E .
5. Is the map or arrow icon spinning or rotating while driving? Confirm that the customer understands the difference between Heading up and the MAP showing North as up. Press the top left icon on the screen to change the MAP view. This information is in the Owners Handbook Symbols section.

DVD/CD Player Concerns

1. Will the player accept and eject a disc?

   If No:

   • Does the radio display indicate that there are discs installed?
   • Does the DVD/CD make noises?
   • Disconnect battery power from the radio to reset the CD mechanism. Will the CD eject?
   • Did the following bulletins and PIs change the condition?
     • 08-08-44-021C Navigation Radio Will Not Accept, Eject Or Play CDs Or DVDs (Cycle Power To The Radio And Update Radio Software) (Cadillac)
     • 07-08-44-024 Radio Locks Up While Playing CDs, DVDs or MP3/WWA discs; Radio Will Not Play CDs or DVDs; Disc Becomes Unplayable And Will Not Eject; DVD Freezes Up While Playing
     • PIT4189C Navigation Radio Media Installation
     • PIT4251A Inserted Navigation Disc into CD player and Now Radio Will Not Eject Disc (Non Cadillac)
     • PIT4329D Navigation Disc Replacements For Service Repairs 1-877-NAV-DISC (1-877-628-3472)

   If Yes:

   • When does the CD/DVD concern occur?
     • Same length of play time?
     • Same track/chapter?
   • Is the suspect disc a commercial copy? In not, suspect an incompatible format. Use a commercial legal known good disc (CD audio and DVD movie) to evaluate the DVD and CD functions.
2. What is the specific error message that is displayed? Refer to the System Message table below.
3. For Cadillac NAV only:
   • "Top Drive" is for NAV Map disc only. Confirm that the Navigation MAP disc is used in this slot only. A DVD movie or audio CD will not play in this slot.
   • "Bottom Drive" is CD/DVD changer.
     • Check the disc quality. Check for paper labels. Is the disc cracked, scratched or warped?
     • Is the disc stuck? If it is, pull the radio fuse and try to eject the disc again.

System Messages
CD/DVD Error	Please Wait	Loading Disc 3	Ejecting Disc 5
Disc Error	Insert Disc	Loading Disc 4	Ejecting Disc 6
Checking the Map DVD	Loading Disc	Loading Disc 5	Disc Error. Ejecting Disc 1
Disc Check in Progress	Disc Error. Ejecting Disc	Loading Disc 6	Disc Error. Ejecting Disc 2
MAP DVD Read Error	Disc Changer Is Empty	Ejecting Disc 1	Disc Error. Ejecting Disc 3
No Map DVD	Ejecting Disc	Ejecting Disc 2	Disc Error. Ejecting Disc 4
Region Code Error	Loading Disc 1	Ejecting Disc 3	Disc Error. Ejecting Disc 5
The Disc Installed Is Not A MAP Disc	Loading Disc 2	Ejecting Disc 4	Disc Error. Ejecting Disc 6
Disc Changer Is Full	-

Display Screen, Back Up Camera Or Rear Video Operation Concerns

1. Is the radio power on?
2. Is the complaint for a black screen?

   If Yes:

   • Is the I/P dimming turned all the way down? Is the twilight sentinel/sensor working properly?
   • Are the hard key buttons backlit?
   • Is the radio LCD screen backlight on?
   • Has the display been turned "OFF" by the driver? Selectable in menu.
   • What mode is the radio in during the fault? Navigation, radio or CD/DVD?
   • Will the display tilt button work?
   • Is the map section black only?
   • When does the black screen occur? Immediately upon startup? When going into or out of Reverse gear? While driving? Is the concern repeatable? If yes, remove and replace the radio. Did Corporate Bulletin Number 08-08-44-013E Navigation Radio Intermittent Blank/Black Screen, Map Disc Read Errors, Features Not Accessible While Driving, Navigation Radio Resets Upon Startup (Update Navigation Radio Software) change the condition?
   • Is the touch screen functional? Test by pressing in the area that the soft buttons would be. For example, the radio presets. If the radio changes station, replace the radio.
3. Is the concern for rear video operation? Did the following bulletins and P/Is change the condition?
   • 07-08-44-018 - EI07233 Rear Seat Entertainment Does Not Work Properly, Blank Screen, Audio Heard But No DVD Playing, Video Screen Monitor Inoperative
   • 06-08-44-026B Rear Video Screen Inoperative - Blank/Black Screen With Audio Present
   • 06-08-44-035C Blank/Black Screen After Ignition Key Is Cycled, DVD Audio Is Present
   • PIT4062A Lost or Missing Parental Security Code for U42 Video System
   • PIT4120A Rear Seat Audio Inoperative After Service Repair
   • PIT4252A How To Fade All Audio To Rear Speakers When Playing A DVD
   • PIT4452 No Video On Rear Screen But Audio Works From Speakers
4. Is the complaint for another display or screen concern? Did the following bulletin and PIs change the concern?
   • 06-08-44-032B Blank/Inoperative Screen, No Audio Present
   • PIT4481 Blue or White dots displayed on NAV Screen
   • PIT4474 Navigation Display blank or flashing DTC B1288 And B1289
   • PIT3862G Rear Vision Camera Inoperative

Radio / Audio Control Concerns

1. Is the chime too loud? If yes, reset to normal volume in Driver Information Center (DIC).
2. Does the "splash" screen show the Delphi  or GM  brand when the radio is turned on? If yes, calibrate the radio for the given vehicle.
3. Can the volume be adjusted?
4. Do the steering wheel radio controls all function properly? If not, check the wiring and perform the Steering Wheel Controls Diagnostic procedure.
5. Can bands be changed using the radio hard key or touchscreen? If not, remove and replace the radio.
6. Is the concern with XM, AM or FM operation? Did the following bulletins and P/Is change the condition?
   • 08-08-44-008A XM Does Not Retain Station Settings From Previous Ignition Cycle
   • 02-08-44-007D Negative Impact Of Dealer-Installed Cloth/Vinyl Roofs On XM Radio and/or OnStar® Systems
   • 03-08-44-005J Poor Radio Reception Or Radio Static/Increased Interference With Rear Window Defogger On or Some Rear Window Defogger Grids May Be Inoperative (Diagnose and Repair Rear Window Defogger Heating Grid)
   • 06-08-44-015B Information On Eliminating Noise In Audio System When Using Portable Playback Device
   • 07-08-44-004A Diagnostic Information On Navigation Radio Aftermarket Modules Causing Various LAN Communication Concerns, DTC, No Crank, Vehicle Stability Lights/Messages, TPM Warning Lights, PRNDL Position Errors
   • PIC3228E Dealers Seeking Technical Support for XM Digital Radio Receivers
   • PIC4674 Static Whine or Loud Pop Noise In Speakers
   • PIT4163C Audio from Left Front Speaker Only
   • PIT4616 XM Radio Inoperative Or XM Band Missing From Radio at Times
7. Is the voice recognition inoperative? Did Corporate Bulletin Number 06-08-46-004 Navigation Radio Voice Recognition Is Inoperative, May Not Follow Customer Command Or May Not Recognize Customer Voice (2007 model year only) change the condition?
8. Is the concern with the Heads Up Display (HUD)? Did Corporate Bulletin Number 07-08-44-023 Heads Up Display Does Not Display Station, Band Or Turn By Turn Information change the condition?
9. Is the concern during OnStar® operation? Did the following bulletins and P/Is change the condition?
   • 07-08-46-002D Audio Whine Noise From Radio Speakers When Using OnStar®
   • 02-08-44-007D Negative Impact Of Dealer-Installed Cloth/Vinyl Roofs On XM Radio and/or OnStar® Systems
   • PIC4500C OnStar® Progression Tones After Call End Attempt Is Made
   • PIC4801B OnStar® Turn By Turn Feature Inoperative
10. Is the concern about noise from the radio? Did Corporate Bulletin Number 06-08-44-034D Information On Noise Sources From Navigation Radio-CD/DVD Disc Accessing Noise From Radio Fan, For Cooling, Disc Accessing Noise For Navigation Operation Or NAV Traffic Information change the condition?
11. Is the concern about clock accuracy? Did PI PIT4635 Navigation Radio Clock Looses Time or Becomes Inaccurate change the condition?
12. Is the concern with the radio display being locked or with Theft Lock? Did PI PIT4007D Radio Displays Locked After SPS Programming change the condition?
13. Is the concern with the Speed Compensated Volume? Did PI PIT4626 Speed Compensated Volume Does Not Change the condition?
14. Is the concern with the radio changing stations or volume by itself? If yes, confirm with the customer that the steering wheel controls are not being inadvertently pressed while driving. Did Corporate Bulletin Number 07-08-44-022 Radio Volume, Band And Stations Change By Themselves change the condition?

Diagnostic Tips Review #2 - Delphi Legacy Navigation Radio

Navigation Map Concerns

1. Will the radio accept and read a disc with no errors?

   If No:

   • Will the display faceplate open so that the Map disc can be inserted?
   • What is the Map DVD part number?
   • Record the specific NAV error messages displayed.
   • Try the Map disc from a known good similar vehicle.
   • Try a known good Map disc in this vehicle.

   If Yes:

   • Is the navigation map displayed?
   • Is the system able to enter/choose destinations and run route guidance?
   • If the customer concern is accuracy, drive to an intersection and check the map for proper location.
     NOTE: Specific addresses are not always displayed in the actual location. Address numbers in the map database may be equally spaced along roads and may not display the exact location.
   • Did Corporate Bulletin Number 08-08-44-023 Navigation Radio Not Displaying Accurate Vehicle Location After Radio Replacement change the condition?
2. Is the red "No GPS Signal" icon appearing constantly/frequently?

   If Yes:

   • Confirm that the vehicle does not have aftermarket window tinting installed. Some tinting interferes with GPS reception.
   • Are items placed on the center of the I/P or attached to the windshield, which could reduce GPS reception? Did Corporate Bulletin Number 08-08-44-027 Information On Navigation Radios That Have A Weak Or No GPS Signal change the condition?
   • Check for good GPS antenna electrical connections and for DTCs.

   If No:

   • If the three items above are all OK then check for a faulty GPS antenna.
   • If the GPS antenna checks good then replace the radio.
3. Is Navigation or MAP operation intermittent?

   If Yes:

   • Examine the disc for scratches.
   • Try a known good map disc. Confirm that the Map disc part number is correct.
   • Did PI PIT4329E Navigation Disc Replacements For Service Repairs change the condition?
   • Retrieve the Software Version from the radio by using one of the following procedures:
     • On the H3, H3T and 9-7X perform a "Two Button Press" by pressing and holding the Seek Up and Config buttons simultaneously.
     • On the Full Size Pick-Ups and Utilities and the Chevrolet and GMC Midsize Utilities perform a "Three Button Press" by pressing and holding the Seek Up, NAV and NAV RPT buttons simultaneously.

If No:

• Check for a faulty GPS antenna.
• If the GPS antenna checks good, then replace the radio.

Diagnostic Tips Review #3 - Denso Navigation Radios

Navigation Map Concerns

1. Are all other radio operations functioning correctly? If no, what else is not working properly? Make a list.
2. Will the radio accept and read a map disc?

   If yes:

   • Is the navigation map displayed?
   • Is the system able to enter or choose destinations and run route guidance?

     Did the following PIs change the condition?

     • PIC4274A Navigation System Gives Out Of The Way Directions
     • PIT4369B Navigation System Gives Out Of The Way Directions
     • PIT4481 Blue or White Dots Displayed on the Navigation Screen
   • If the customer concern is accuracy, drive to an intersection and check the map for proper location.
     NOTE: Specific addresses are not always accurate. Address numbers in the MAP database may be equally spaced along roads and may not display the actual location.
   • Did Corporate Bulletin Number 08-08-44-023 Navigation Radio Not Displaying Accurate Vehicle Location After Radio Replacement change the condition?

   If No:

   • What is the map DVD disc part number?
   • What is the specific NAV error message that is displayed?
   • Has the suspect map disc been tried in a known good similar vehicle?
   • Has a known good disc been tried in the suspect radio?
   • Check the disc quality. Is the disc scratched, or does it have smudges or fingerprints on it?
3. Did the following PIs change the condition?

   PIT4698 Navigation Display and Hardkeys Inop/Frozen

4. Is the red "No GPS Signal" icon on constantly or frequently?

   If Yes:

   • Does the vehicle have aftermarket clear window tinting on the windshield? Some tinting interferes with GPS reception?
   • Are items placed on the center of the I/P or attached to the windshield which could reduce GPS reception?
   • Has the GPS antenna connection to the radio been checked?

     Did the following bulletin and PI change the condition?

     • 08-08-44-027 Information On Navigation Radios That Have A Weak Or No GPS Signal
     • PIC4611 Nav Radio GPS in Inop or Inaccurate
   • Was a poor GPS antenna connection found? Also check for GPS DTCs.
   • Has a known good GPS antenna been used to correct the condition?
5. Is the Nav/map operation intermittent? Does the display freeze or blank out? Please explain.

   If Yes:

   • Does the map disc have scratches or other damage?
   • Has a known good map disc from a like vehicle been tried in the suspect radio?
   • Did the following PI change the condition?

     PIT4698 Navigation Display and Hardkeys Inop/Frozen

6. Is the map or arrow icon spinning or rotating while driving? Confirm that the customer understands the difference between Heading Up and the Map showing North as up. Press the top left icon on the screen to change the map view. This information is in the Owners Handbook Navigation Radio Supplement Symbols Section.
7. Is the concern with a FAN or CD accessing noise? Did Corporate Bulletin Number 06-08-44-034D Information On Noise Sources From Navigation Radio, CD/DVD Disc Accessing Noise, Fan For Cooling, Disc Accessing Noise For Navigation Operation Or NAV Traffic Information, change the condition?
   NOTE: The radio may remain "ON" for what may seem to be an extended period. Anything that "wakes-up" the system initializes the radio and it will start reading the MAP disc. Additionally, at key-off the fan noise may seem extended and/or amplified due to the powertrain being off. Unless battery drain issues have been noted, the radio should not be replaced for this condition.
8. Is the concern with the MAP Units Displayed? (Kilometers vs. Miles) Did the following PI change the Condition? PIT4044A - Navigation Radio Reverts to English When French Selected.

DVD/CD Player Concerns

1. Is the customer concern related to the following?
   • Will not accept CD/DVD disc?
   • Will not eject CD/DVD disc?
   • Will not play CD disc?
   • Will not play DVD disc?
   • Will not play CD/DVD and disc will not eject?
   • Other (describe).
2. Will the player accept, play and eject a CD/DVD disc?

   If No:

   • Does the radio display indicate that there are discs installed?
   • Does the DVD/CD drive make any noises? Describe them.
   • Is the suspect disc a commercial legal copy? If not, suspect an incompatible format. Use a commercial legal known good disc, CD audio and DVD movie, to evaluate the DVD and CD functions.
   • Check the disc quality. Is the disc improperly labeled or is the paper label peeling? Is the disc cracked, scratched or warped?
   • Does the concern occur with multiple discs or just one disc?
   • Is the concern that the radio will not play a DVD? If yes, verify that the radio is capable of playing DVDs. Follow PI PIT 4196B to verify.

   If Yes:

   • When does the CD/DVD concern occur?
   • Does it occur immediately after disc insertion?
   • Does it occur at the same length of play time?
   • Does it occur at the same track or chapter?
3. What is the specific error message that is displayed?
4. Is the concern with a fan or CD accessing noise? Did Corporate Bulletin Number 06-08-44-034D Information on Noise Sources From Navigation Radio-CD/DVD Disc Accessing Noise, Fan For Cooling, Disc Accessing Noise For Navigation Operation or NAV Traffic Information change the condition?

Display Screen, Back Up Camera or Rear Video Display Concerns

1. Has the radio power and ground been checked?
2. Is the concern for a black or white screen?

   If Yes:

   • Is the I/P dimming turned all the way down? Is the twilight sentinel/sensor working properly?
   • Is the radio set in Day / Night / Auto Mode? (Set in Auto or Day if the display is dim.)
   • Are the hard key buttons backlit?
   • Is the radio LCD screen backlight on?
   • When does the black screen occur? Does it occur immediately upon startup or while driving?
   • Is the touch screen functional? Test by pressing in the area that the soft buttons would be. For example, the radio presets. If they are working a beep should be heard.
   • Can you change the radio stations using the seek button or steering wheel controls?
   • Does the rear camera display work when in reverse (for vehicles with rear camera, RPO UVC)?
   • Did the following PI change the condition?

     PIT4698 Navigation Display and Hardkeys Inop/Frozen

3. Is the concern for rear video operation? Check the radio menu settings to ensure that the camera has not been turned off.

   Did the following bulletin or PI change the condition?

   • 07-08-44-018 Rear Seat Entertainment Does Not Work Properly, Blank Screen, Audio Heard But No DVD Playing, Video Screen Monitor Inoperative
   • PIT3862G Rear Vision Camera Inoperative
4. Is the concern for the radio clock not appearing? Did Corporate Bulletin Number 08-08-44-002B Navigation Radio Clock and/or Clock Tab Do Not Appear or Disappears Intermittently, Split Screen, Points of Interest or an Exit List Appears While Driving, Text Color May Be Difficult to See change the condition
5. Is the concern for the Rear Overhead Video Display?

   Did the following PIs change the condition?

   • PIT4196B Navigation Radio Will Not Play DVD Audio or DVD Video Discs
   • PIT4474 Navigation Or Radio Display Blank Or Flashing DTC B1288 and B1289

TIP:   Some complaints that, "the screen stays in the night mode when it should clearly be in the day mode" is a highly intermittent condition, that typically occurs when the vehicle is parked and started in a shaded or dimly lit area.

Radio / Audio Control Concerns

1. Which term best describes the concern?
   • Distorted
   • Static
   • Too loud
   • Too soft/weak (If the condition is after a radio replacement, program the radio to the correct vehicle)
   • Fades in/out
   • Other (describe)
   • Did bulletin 06-08-44-033B , Radio-Poor AM and FM Reception (Inspect and Fully Seat Connector), change the condition?
2. Which audio source is affected? Select all that apply.
   • AM
   • FM
   • XM
   • CD
   • DVD
   • Front AUX input
   • Rear AUX input
3. Can the volume be adjusted? If no, did you verify that the correct files were loaded from SPS?

   Did the following PIs change the condition?

   • PIT4034B Audio Volume Stuck In Loud Position
   • PIT4120A Rear Seat Audio Inoperative After Service Repair
   • PIT4163C Audio From Left Front Speaker Only
4. Does the radio change stations or volume on its own? How frequently? If yes, confirm with the customer that the steering wheel controls are not being inadvertently pressed while driving. If the vehicle is equipped with rear or cargo area radio control switches, then there is a potential for luggage or groceries to touch the controls.
5. Do the steering wheel radio controls all function properly? If no, what controls do not function properly?
6. Is the concern with AM, FM, XM and/or OnStar® operation?

   Did the following bulletins and PIs change the condition?

   • 02-08-44-007D Negative Impact of Dealer Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar® Systems
   • 03-08-44-005J Poor Radio Reception or Radio Static/Increased Interference with Rear Window Defogger On or Some Rear Window Defogger Grids May Be Inoperative
   • 06-08-44-015B Information on Eliminating Noise in Audio System When Using Portable Playback Device
   • 07-08-46-002D Audio Whine Noise from Radio Speakers When Using OnStar®
   • 08-08-44-008A XM Radio Does Not Retain Station Setting From Previous Key Cycle and Changes to Channel 1, The Preview Channel, at Vehicle Startup
   • PIC3228E Dealers Seeking Technical Support for XM Digital Radio Receivers
   • PIT4556 Heart Beat Type Noise from Radio When Turn Signal On
   • PIT4616 XM Radio Inoperative or XM Band Missing from Radio at Times

Other Radio Hardware Concerns

1. Does the radio reset spontaneously? If yes, did you check the radio power and ground?
2. How frequently does this condition occur?
3. What causes the radio to start working again?

   Did the following PIs change the condition?

   • PIC4641 Radio, Navigation, or HVAC Concerns (oversized terminals)
   • PIT4474 Navigation or Radio Display Blank Or Flashing DTC B1288 and B1289
4. Is the motorized radio screen for accessing the MAP drive nonfunctional?
5. Are the hard key buttons functional? If not, which buttons do not function?
6. Is the concern with the Volume/Tuner Knob? Did Corporate Bulletin Number 08-08-44-025 Information on Navigation Radio Tuner and Volume Knobs Now Available For Service Replacements change the condition?
7. Is the concern with a fan or CD accessing noise? Did bulletin, 06-08-44-034D Information on Noise Sources from Navigation Radio - CD/DVD Disc Accessing Noise, Fan For Cooling, Disc Accessing Noise for Navigation Operation or NAV Traffic Information?
8. Is the concern for the radio clock?

   Did the following bulletin and PIs change the condition?

   • 08-08-44-002B Navigation Radio Clock and/or Clock Tab Do Not Appear or Disappears Intermittently, Split Screen, Points of Interest or an Exit List Appears While Driving, Text Color may be Difficult to See
   • PIC4693B Navigation Radio Clock Inaccurate by 1 Hour
   • PIT3830C Unable to Rest Clock on Navigation Radio
9. Is the concern for Bluetooth?

   Did the following PIs change the condition?

   • PIC4657 Bluetooth Phone Interface Concerns
   • PIC3378D Facts About the Bluetooth Enabled Phone Interface
10. Is the concern with the radio displays locked or with Theft Lock?

    Did the following PIs change the condition?

    • PIC4729 Unable to Perform Navigation Radio VIN Relearn Using Tech 2®
    • PIT4007D Radio Displays Locked or Theft Lock
11. Is the concern with the Voice Recognition? Did PI PIC4745C Poor Navigation Radio Voice Recognition change the concern?
12. Does the radio appear to be locked with no response from button press, static/distortion on the display or not turn off for several minutes?
13. Did the following PI change the condition?

    PIT4499 Navigation Radio Responds Slowly/Locks Up/CD Error

14. Is the concern with the Map Units displayed?
15. Did the following PI change the condition?

    PIT4044A - Navigation Radio Reverts to English when French Selected

Diagnostic Tips Review #4 - Denso Legacy Navigation Radio

Navigation Map Concerns

1. Are all other radio operations functioning properly?
2. Will the radio accept and read a map disc?

   If Yes:

   • Is the navigation map displayed?
   • Is the system able to enter/choose destinations and run route guidance?

     Did the following PIs change the condition?

     • PIC4274A Navigation System Gives Out Of The Way Directions
     • PIT4369B Navigation System Gives Out Of The Way Directions
     • PIT4481 Blue or White Dots Displayed on the Navigation Screen
   • If the customer concern is accuracy, drive to an intersection and check the map for proper location.
     NOTE: Specific addresses are not always accurate. Address numbers in the MAP database may be equally spaced along roads and may not display the actual location.

     Did Corporate Bulletin Number 08-08-44-023 Navigation Radio Not Displaying Accurate Vehicle Location After Radio Replacement change the condition?

   If No:

   • What is the Map DVD disc part number?
   • What is the specific NAV Error message that is displayed?
   • Has the suspect map disc been tried in a known good similar vehicle?
   • Has a known good disc been tried in the suspect radio?
   • Check the disc quality. Is the disc scratched, or does it have smudges or fingerprints on it?
3. Is the Red "No GPS Signal" icon on constantly or frequently?

   If Yes:

   • Does the vehicle have aftermarket clear window tinting on the windshield? Some tinting interferes with GPS reception.
   • Are items placed on the center of the I/P or attached to the windshield which could reduce GPS reception?
   • Has the GPS antenna connection to the radio been checked?
   • Was a poor GPS antenna connection found? Also check for GPS DTCs.
   • Has a known good GPS antenna been used to correct the condition?
   • Did PI PIT4118B Navigation Radio Displays No GPS Signal change the condition?
4. Is Nav/Map operation intermittent?

   If Yes:

   • Does the Map disc have scratches or other damage?
   • Has a known good map disc from a like vehicle been tried in the suspect radio?
5. Is the map or arrow icon spinning or rotating while driving? Confirm that the customer understands the difference between Heading Up and the Map showing North as up. Press the top left icon on the screen to change the map view. This information is in the Owners Handbook Navigation Radio Supplement Symbols Section.
6. Is the concern with a fan or CD accessing noise? Did Corporate Bulletin Number 06-08-44-034D Information On Noise Sources From Navigation Radio, CD/DVD Disc Accessing Noise, Fan For Cooling, Disc Accessing Noise For Navigation Operation Or NAV Traffic Information change the condition?
7. Does the NAV/Map system not recognize a certain address or Point Of Interest (POI)? If yes, confirm that the correct region is selected in the NAV setup menu.
   NOTE: Some NAV systems have two map DVDs for coverage of the US and Canada.

DVD/CD/MP3 Player Concerns

1. Will the radio eject the disc?

   If No:

   • Does the radio display indicate that a disc is installed?
   • What error message is displayed when trying to eject the disc?
   • Does the CD mechanism make noise?
   • Disconnect battery power from the radio to reset the CD mechanism. Will the CD eject now?
2. Is the player playing or accepting a disc?

   If No:

   • Does the radio display indicate that there is a disc installed?
   • Is the suspect disc a commercially legal copy? If not, suspect an incompatible format. Use a commercial legal known good disc, CD audio and DVD movie, to evaluate the DVD and CD functions.

   If Yes:

   • When does the CD/DVD concern occur?
   • At what ignition cycle, specific track or length of play time does the concern occur?
3. What type of media was being used when the concern occurred? Was is CD, DVD or MP3?
4. What is the specific error message that is displayed?

Display Screen, Back Up Camera or Rear Video Display Concerns

1. Is the radio power on?
2. Is the concern for a black screen?

   If Yes:

   • Is the I/P dimming turned all the way down?
   • Are the hard key buttons backlit?
   • Is the radio LCD/screen backlight on?
   • What mode is the radio in during the concern? Is it Navigation, radio, CD/DVD?
   • When does the black screen occur? Immediately upon startup or while driving?
   • Is the touch screen functional?
   • Did PI PIT4677A Upper 1/3 of Navigation Screen Is Distorted or Dark Band change the condition?

Radio / Audio Control Concerns

1. Can the volume be adjusted?
2. Do the steering wheel radio controls all function properly?
3. Can bands be changed using the Audio hard key, steering wheel controls and touch screen?
4. Does the radio change its presets by itself? If yes, confirm matching Driver 1 and Driver 2 setting with key fob.
5. Does the clock display readjust by itself to an incorrect time? Ensure that the correct time zone has been selected.
6. Is the concern with AM, FM and/or XM operation?

   Did the following bulletins and PIs change the condition?

   • 02-08-44-007D Negative Impact of Dealer Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar® Systems
   • 03-08-44-005J Poor Radio Reception or Radio Static/Increased Interference with Rear Window Defogger On or Some Rear Window Defogger Grids May Be Inoperative
   • 07-08-46-002D Audio Whine Noise from Radio Speakers When Using OnStar®
   • 08-08-44-009A Poor Reception of Radio Stations on AM Band, Static/Popping Noise
   • PIC3228E Dealers Seeking Technical Support for XM Digital Radio Receivers
   • PIC4969 Steering Wheel, ON/OFF and Volume Controls Inoperative At Start Up
   • PIT3024A Radio Preset Reads Something Other Than The Station ID or Station Call Letters
   • PIT3034C Low Audio Output from Speakers
   • PIT3193B Diagnostic for No Sound From Speakers But Radio Display is Operative
   • PIT3195A Replacement Radio Read Cal Error, Has No Audio or Will Not Program
   • PIT3328A Hum or Fan Noise From Navigation Radio
   • PIT3534B Buzz Pop Static or Whine Noise From Any Speaker
   • PIT3581A Navigation Radio Defaults to FM1 After CD is Removed
   • PIT3747 No Radio Sound Through Wireless Infrared Headphones
   • PIT3758A Excessive Chime Volume after Replacing Navigation Radio
   • PIT3942A No Sound From Rear Speakers After Center Console Harness Replaced
   • PIT3970A XM Band Presets for UM8, UAV or UA4 Navigation Radios

Bluetooth Phones Control Concerns (RPO YQ4 Radio Only)

1. What is the Bluetooth Phone model and service carrier?
2. Is the NAV radio successfully paired with the phone? If no, is the paring initiated from the handheld device or from the radio?
3. Is the concern about audio quality or phone functions? Describe the audio quality or phone function concerns.
4. Does the concern occur with a different phone model and carrier?

   Did the following PIs change the condition?

   • PIC3378D Facts About Bluetooth Enabled Phone Interface
   • PIC4657 Bluetooth Phone Interface Concerns

Diagnostic Tips Review #5 - Alpine Silver Box Navigation Radio

XM Concerns

1. Is the XM subscription activated? Subscriptions: audio subscription, traffic and weather subscription.
2. If in the Traffic Mode, what is the concern with traffic? All cities are not supported. Visit <www.xmradio.com/navtraffic/market coverage.xmc> for the current coverage area. (Refer to Bulletin 08-08-126-001 ).
3. Is the Traffic feature activated in the Menu settings?
4. If in Weather mode, what is the issue with weather? All US cities are not supported. Canadian cities are not supported.
5. Is the Weather feature activated in the Menu settings?

   Did the following PIs change the condition?

   • PIC3228E Dealers Seeking Technical Support For XM Digital Radio Receivers
   • PIC4707A NO DATA message on Weather Screen
   • PIC4633 CHECK ANTENNA message on XM band

OnStar® Concerns

1. Is there audio when the OnStar® button is pressed?
2. Is there a voice icon when in OnStar® mode?
3. Destination Entry Assist, did customer accept?
4. Did customer see Destination Entry Assist on screen?
5. Is the concern related to cannot use audio functions when on a call? OnStar® cannot go into radio functions, only navigation functions, when on a call.
6. Turn-by-Turn function: Did customer receive Turn-by-Turn through OnStar®? This will not show up on navigation display.

   Did the following bulletin and PI change the condition?

   • 08-08-46-003C Information on OnStar® Destination Download Incomplete, Intermittent
   • PIC4801B Information OnStar® Vehicles Unable to Receive Turn By Turn Directions
   • PIC5040 Navigation Radio; Touch Screen Freezes After OnStar Destination
   • PIC4510A OnStar TBT (Turn by Turn) and Digit Displays Location

Pop Up Display Concerns

1. Does the display show any information, such as AM/FM stations, CD/DVD or Map data?
2. Does the display work properly when pressing buttons?
3. Does the display go Up and Down when the navigation button is pressed?
4. Is there any abnormal noise with the display?
5. Is the noise there all of the time or is it intermittent? When the noise occurs does it go up or down, or both?
6. Is the display dark? Check for Day/Night mode.
7. Do the preset buttons work?
8. Is the display blank or inoperative? If Blank: Is the Display completely off (Black) or does it have backlighting?

   Did the following bulletin or PI change the condition?

   • 08-08-44-019D Intermittent XM, Blank Display, System Resets, Timeshift Operation or Music Copy Functionality, Incorrect Dimming Level, System Stating Unable to Plan Route After a Route Deviation
   • PIC4680 Navigation Radio Display is Frozen or Changes Stations

Navigation Concerns

1. Can a destination be entered?
2. Can a route be calculated?
3. Does the map show vehicle position? If not check antenna and connections.
4. Is there voice output for the Turn-by-Turn?
5. Confirm that the customer understands the difference between the vehicle pointer Heading Up and North Up. (The Display can be changed to display; vehicle points up, North being at the top of the display always, or a 3 Dimensional view.)
6. If the customer concern is accuracy, drive to an intersection and check the map for proper location.
   NOTE: Specific addresses are not always accurate. Address numbers in the MAP database may be equally spaced along roads and may not display the actual location.
7. Did Corporate Bulletin Number 08-08-44-023 Navigation Radio Not Displaying Accurate Vehicle Location After Radio Replacement change the condition?

Voice Recognition Concerns

1. Does the voice icon appear on the screen with an audible beep when the button is depressed? If so, the voice recognition is working.
2. If voice recognition is not working properly, what is the command being used?
3. What happens after you give a verbal command? Is the response "Cannot Understand Command"? If this is the case, voice recognition is working but does not understand the command. Refer to SI or the Owner Manual for voice commands.
4. Is voice recognition not responding at all? Voice recognition may not be turned on.
5. Are navigation voice commands working? Navigation voice commands will not work if you have not been in Navigation screen.
6. What command is not recognized?

iPod USB Concerns

1. What device is connected to the USB?
2. If it is an iPod, is the correct GM iPod connector being used?
3. If an iPod is being used, what version is the iPod? What software version is in the iPod? Refer to PI PIC5002A - Bluetooth Issues With Apple iPhone. V2.1.
4. If iPod has GM logo, the iPod can be operated through the radio. If the iPod does not have a GM logo, the operation is through the device. iPhone and touch have limited function.
5. Refer to Corporate Bulletin Number 07-08-44-025 - iPhone, iPod Cable Missing, Inoperative, Compatibility, Firmware, Software, Shareware - Required Firmware/Software and Cable Availability for more information.

Other Media Plugged Into USB Concerns

1. What type of media is customer trying to play? What is connected (a portable unit, a hard drive, memory stick, 2G, 4G, etc.)?
2. Is this media supported by the radio per the owners manual?
3. Refer to PI PIC4900-Device Not Supported-USB Flash Stick Does Not Function. Does it change the condition?

Setting Concerns

1. Is the navigation voice low or not present? Check setting for navigation voice turned down or off.
2. Is the concern for Traffic Info not coming in? Check setting to see if traffic has been turned off.
3. Customer may not have all of the presets. Check audio setting for presets.
4. XM categories are not present. The XM categories may be deleted.
5. Points Of Interest (POI) is no longer on the map. The POI may be turned off.
6. Customer may not have voice prompt. The voice prompt may be turned off.
7. Traffic flow bubbles are not present. The Traffic flows/events may be turned off.
8. If there is a database issue call the Navigation Disc Center hotline.
9. Bluetooth is not operational.
   • Refer to PI PIT4733 - Bluetooth Option Availability
   • Refer to PI PIC5002A - Bluetooth Issues with Apple iPhone V2.1
   • Refer to 08-08-44-024 - Voice Recognition System will not Recognize Bluetooth Command

Radio / Audio Control Concerns

1. Is the chime too loud?
2. Does the "splash" screen show a crest when the radio is turned on?
3. Can the volume be adjusted?
4. Is the Radio audio, door chime, or turn signal "click-clack" Inoperative? Refer to Bulletin 08-08-44-031A - No Audio from Radio Door Chime and Turn Signal Click-Clack Inoperative During Key Cycle - Audio Return After Vehicle is Turned Off for Several Minutes.
5. Does the radio change stations on its own? How frequently? Refer to PIC4680A - Navigation Radio Display is Frozen or Changes Stations.
6. Do the steering wheel radio controls all function properly?
7. Is the audio distorted?
8. Can the radio bands be changed using the Audio hard key, steering wheel control buttons and the touchscreen?
9. Does the radio turn back on when the vehicle is started even though it had been shut off? Refer to PI PIC4954.

   Did the following bulletins and PIs change the condition?

   • 02-08-44-007D Negative Impact of Dealer Installed Cloth/Vinyl Roofs on XM Radio and/or OnStar® Systems
   • 03-08-44-005J Poor Radio Reception or Radio Static/Increased Interference with Rear Window Defogger On or Some Rear Window Defogger Grids May Be Inoperative
   • 06-08-44-015B Information on Eliminating Noise in Audio System When Using Portable Playback Device
   • 07-08-46-002D Audio Whine Noise from Radio Speakers When Using OnStar®
   • 08-08-44-020A Information on XM Activation After Radio Replacement
   • 08-08-44-024 Voice Recognition System Will Not Recognize Bluetooth Command
   • 09-08-44-001 Reduced AM and/or FM Station Reception
   • PIC4640A Radio Navigation IPC or HVAC Concerns (Oversized Terminals)
   • PIC4652 Radio Navigation Heated Seat Or HVAC Controls Inop
   • PIC4954 - Navigation Radio Turns on Unexpectedly
   • PIC4978 - Speakers Pop, Crackles, or Ticks

DVD / CD Player Concerns

1. Will the player accept and eject a disc?

   If No:

   • Does the radio display indicate that there are discs installed?
   • Does the DVD/CD make noises?
2. Is the suspect disc a commercially legal copy?

   If No:

   • Check the disc for a loose or improper label.
   • Suspect an incompatible format.
   • Use a commercially legal known good disc, CD audio and DVD movie, to evaluate the DVD and CD function.

   If Yes:

   • When does the CD/DVD concern occur?
   • After how many ignition cycles?
   • Any specific track? What is the length of play time?
3. What is the specific error message that is displayed?