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Service bulletins for the 2025 GMC Sierra

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.

759 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIP6023D2026-01-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates the possibility of injector related DTC's with malfunction indicator lamp on and potential rough idle
PIT6344A2026-01-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with blower motor speed changing when air flow is blocked by snow.
PIT64712026-01-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided. When a fix is available, this PI will be updated to a bulletin.
PIT6064B2026-01-19. Service bulletin. UNKNOWN OR OTHER. This PI Communicates information to inform technicians that PTO Configuration has moved from PTO Module to ECM.
PIT6457B2026-01-19. Service bulletin. UNKNOWN OR OTHER. This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
PIT6436A2026-01-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform dealer technicians to not replace anything at this time in regards to this concern. The vehicle is still safe to drive with no other issues.
N2525366402026-01-15. Service campaign. UNKNOWN OR OTHER. Service Update. Certain vehicles listed above may have a condition where the front upper control arm ball stud nut may be loose or missing. Dealers will inspect, and if necessary, tighten or install a new front upper control arm ball stud nut.
PIC6566B2026-01-14. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealership technicians to perform the reset for the 2 modules noted above.
PIP4902U2026-01-13. Service bulletin. UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIT5828E2026-01-13. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.
PIT6315A2026-01-13. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates information to direct the dealer or upfitter to GM Upfitter Bulletin 203 for information on installing the Universal Vehicle Module.
PIT6276B2026-01-13. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with a service keyless entry message caused by aftermarket door handle covers and they should be removed.
PIT5689M2026-01-04. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
PIC6540F2026-01-04. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers a procedure to reset the radio.
PIT6393H2025-12-29. Service bulletin. UNKNOWN OR OTHER. "This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules."
PIP6092A2025-12-22. Service bulletin. UNKNOWN OR OTHER. This preliminary information advises dealers that Engine Control Module designation E01 is on a ordering restriction through technical assistance.
PIT64672025-12-22. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates that this concern is being root caused and no repairs should be attempted at this time
PIP6064A2025-12-22. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communication advises technicians to inspect for, and if necessary, repair harness damage caused by possible contact with the EGR cooler outlet pipe or the duct bracket.
PIT64642025-12-15. Service bulletin. UNKNOWN OR OTHER. This PI communicates information that the customers fifth wheel hitch may not latch into the factory box mounted hitch due to a supplier quality concern. Dealer is to replace box mounted hitch to correct.
PIT6457A2025-12-15. Service bulletin. UNKNOWN OR OTHER. This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
PIC6629B2025-12-15. Service bulletin. UNKNOWN OR OTHER. This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display
PIT6393G2025-12-08. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules.
PIT6224B2025-12-08. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates the Heavy Fuel Usage message in the DIC is normal due to low fuel range and current driving habits, or low fuel range and vehicle is idling.
PIC6602Q2025-12-08. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
PIC6630A2025-12-08. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers steps to follow to recover an IOK radio.

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