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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

Bulletins, newest first
10-08-45-001H2024-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
16-NA-3832024-03-19. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
07-00-89-037S2024-03-19. Service bulletin. EQUIPMENT. This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.
22-NA-0742024-02-29. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
14061300012024-02-12. Service bulletin. ELECTRICAL SYSTEM. High Voltage Safety ? High Voltage Disabling
18-NA-0992024-02-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
PI1394B2024-02-02. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This PI bulletin advises the technician on the proper way to install the pistons in an engine.
02-08-42-001J2024-01-19. Service bulletin. EXTERIOR LIGHTING. This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
PIT5319A2024-01-08. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT. Bluetooth Stays Connected After RAP Is Canceled.
Recalls2024-01-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Vehicle Recalls
PIT5139A2023-12-26. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Diagnosing Suspension And Rear End Sway
PIT5074H2023-12-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
PIT4864F2023-12-26. Service bulletin. EQUIPMENT. Information On Requests To Add OnStar Bluetooth Option.
23-NA-2192023-12-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
PIT5139A2023-12-11. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Diagnosing Suspension And Rear End Sway
PIT5099A2023-12-11. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. A/C Blows Warm Or Poor Performance.
PIT5074H2023-12-11. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
PIC5614A2023-12-11. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Changing Turn-By-Turn Voice Response To Metric Or English Units
130089004I2023-12-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Car and Truck Fix it Right the First Time Issues
14061300012023-12-11. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; AIR BAGS. High Voltage Safety ? High Voltage Disabling
PIT5264B2023-12-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Canadian Customers Unable To Place Calls And Turn By Turn Inoperative In The United States.
PIT52642023-12-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Canadian Customers Unable To Place Calls In The United States
1308116001A2023-12-04. Service bulletin. EQUIPMENT:ELECTRICAL. Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues
120310002A2023-12-04. Service bulletin. WHEELS; TIRES; UNKNOWN OR OTHER; WHEELS:LUGS/NUTS/BOLTS/STUDS. Proper Wheel Installation and Wheel Torque Techniques
1203100022023-12-04. Service bulletin. WHEELS:LUGS/NUTS/BOLTS/STUDS; UNKNOWN OR OTHER; TIRES; WHEELS. Proper Wheel Installation and Wheel Torque Techniques

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.