Service bulletins for the 2008 GMC T-Series
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
189 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| PIT5319 | 2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that the OnStar LED is staying on after the vehicle Retained Accessory Power has turned off and/or their Bluetooth phone stays connected after leaving the vehicle. Technician will need to perform a power cycle to the Vehicle Communication Interface Module. If the concern is gone, no further action is required. If the concern is still present after the power cycle technician will need to contact General Motors Technical Assistance Center for further assistance. |
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| PIT3099M | 2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Technician can also contact Partect for assistance. Technician can also contact Techline Customer Support Center for programming issues. |
| PIC5759A | 2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician about vehicles that have a message on the radio "maximum number of phones are currently paired to the vehicle". Dealer should advise the customer this is normal operation of the vehicle due to the maximum number of five phones can be paired to a vehicle. |
| PIP5163A | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure. |
| PIC5953 | 2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact. |
| PI0373A | 2016-11-23. Service bulletin. STRUCTURE; EQUIPMENT; VISIBILITY:REARVIEW MIRRORS/DEVICES. THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES A PROCEDURE FOR RELEARNING THE POWER FOLDING MIRRIORS AND ROAD TESTIN TO VERIFY THEY CORRECT A CONDTION OF THE POWER FOLDING MIRRIORS GLASS SHAKES, FLUTTERS AT NORMAL DRIVING CONDITIONS. |
| IB15-L-001A | 2016-11-03. Service bulletin. FUEL SYSTEM, OTHER. AN INVESTIGATION OF RETURNED NUMBER 1 AND 2 EGT SENSORS TO THE WARRANTY PARTS CENTER HAS IDENTIFIED A COMMON OCCURRENCE OF SENSORS BEING REPLACED WITH “NO TROUBLE FOUND” (NTF). IN ORDER TO BETTER SERVICE THE CUSTOMER AND STOP THE UNNECESSARY REPLACEMENT OF THESE SENSORS, ISUZU HAS PROVIDED THE FOLLOWING INSPECTION INFORMATION TO AID THE TECHNICIAN IN PROPERLY DIAGNOSING EGT SENSORS 1 AND 2. |
| PI-0018-B | 2014-01-04. Service bulletin. STRUCTURE:BODY:DOOR; VISIBILITY:GLASS, SIDE/REAR. GENERAL MOTORS: THE WINDOWS, FRONT AND REAR, WOULD BIND, POOR FIT, MISALIGNMENT, MAKES RATTLE OR SQUEAKING NOISES, MOVES SLOWLY AND IS INOPERATIVE. MODEL 2008-2014 VEHICLES AND TRUCKS. *PE |
| CB-13-J-001-A | 2013-06-20. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. ISUZU: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SOME VEHICLES WILL DEVELOP A CRACK, OVER TIME, IN THE EXHAUST MANIFOLD RESULTING IN INCREASED NOISE DURING OPERATION. MODELS 2004-09 FTR/FVR/FXR, 2004-09 C/T SERIES, 2005-07 H SERIES. *PE |
| SB-12-J-005 | 2012-10-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. ISUZU (CHEVROLET/GMC): TRUCKS WITH DIESEL ENGINE WOULD HAVE IDLE VIBRATION, TROUBLE STARTING, ENGINE NOT REVVING UP, AND A LACK OF POWER DUE TO POSSIBLE OPERATION CONDITION OF SUCTION CONTROL VALVE (SCV)/FUEL RAIL PRESSURE (FRP) REGULATOR BEING INTERMITTENT. MODELS 2004-2010 CHEVROLET/GMC C, T, W SERIES AND ISUZU F, H, N SERIES. *PE |
| SB-09-J-002-C | 2012-05-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. ISUZU (GMC, CHEVROLET): DIESEL ENGINES EQUIPPED WITH EGR COOLER WAS DIAGNOSE FOR LEAKS WITH AN EGR COOLER TESTER CONSISTING OF PRESSURE REGULATOR. MODELS ISUZU N SERIES-2005-2015, GMC/CHEVROLET W SERIES 2005-10, ISUZU F SERIES 2007-09 AND GMC/CHEVROLET T AND C SERIES 2007-09. *PE UPDATED 04/29/2014 *JS |
| 05-09-40-002E | 2011-05-11. Service bulletin. SEAT BELTS:FRONT:WEBBING; SEAT BELTS:FRONT:RETRACTOR. GM: SERVICE BULLETIN EXPLAINING WHEN THE SAFETY BELTS ARE SUPPOSED TO LOCK. *RM UPDATED 12/6/11. *PE |
| PIT-4935 | 2010-03-26. Service bulletin. SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC; SERVICE BRAKES, HYDRAULIC:POWER ASSIST. CHEVROLET/GMC: BRAKE ASSIST PUMP MOTOR ON AND WARNING LIGHT/CHIME. OWNERS MAY COMMENT WHEN TURNING THE STEERING WHEEL WITH THE BRAKE APPLIED THAT THE HYDRAULIC BRAKE ASSIST PUMP TURNS ON AND THE BRAKE WARNING LAMP AND CHIME MAY SOUND. MODELS CHEVROLET KODIAK, C4500-C7500, CONVENTIONAL CAB, T SERIES, TILT CAB, C6500-C7500; GMC TOPKICK, C4500-C7500, CONVENTIONAL CAB, T SERIES, TILT CAB, T6500-T7500. *PE |
| SB-IB09-J-002 | 2010-03-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. ISUZU/GMC/CHEVROLET: TURBOCHARGER INSPECTION. A COMMON OCCURRENCE OF TURBOCHARGES BEING REPLACED FOR INTERNAL OIL LEAKS. RESULTS SHOW THAT THERE IS NO FAULT WITH THE TURBOCHARGER. THE PERCEIVED OIL LEAK ACTUALLY MAY BE A NORMAL CHARACTERISTIC OF THE CLOSED POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM OR SOME OTHER UNIDENTIFIED CONDITION. *PE UPDATED 7/9/13. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.