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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
24-NA-1432025-01-24. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on Software Updates on Ultium Vehicles.
24-NA-1132025-01-23. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions.
24-NA-1132025-01-23. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions.
20-NA-1662025-01-23. Service bulletin. ENGINE. This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.
09-06-04-026Z2025-01-23. Service bulletin. ENGINE; POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
23-NA-0812025-01-23. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This informational bulletin provides information for dealers/technicians on High Output Engine Calibration Installation Process.
22-NA-2182025-01-23. Service bulletin. ENGINE. This informational bulletin advises the technician on normal noises produced by the engine and to explain this to the customer.
N2424857802025-01-22. Service campaign. STEERING. Some vehicles may contain a power steering pump that may prematurely fail. Dealers will inspect and replace the power steering pump as necessary.
N2424820602025-01-22. Service campaign. UNKNOWN OR OTHER. Certain vehicles, may have been delivered without the two additional key fobs that were purchased. Dealers are to provide the customer with two unprogrammed key fobs.
N242451390-022025-01-21. Service campaign. UNKNOWN OR OTHER. Service Update. On certain vehicles, the 12V battery negative cable was erroneously labeled with a First Responder Emergency Cut Loop label. Dealers are to inspect and confirm whether or not the High Voltage Service Lockout Harness has the Emergency Cut Loop label installed and ensure that the 12V Battery Negative Cable does not have the Emergency Cut Loop label installed.
PIT63212025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates a diagnostic tip for locating the cause of DTC: P0530 & P1C26 Set Together in the battery energy control module.
PIT6177B2025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issues of the left rear leaf spring making a squeaking noise due to diesel fuel contamination that may occur during refueling after the fuel nozzle is removed from the fuel filler pipe. Dealers are to create a foam seal around the fuel filler pipe to prevent fuel from leaking onto the left spring.
PIT6209E2025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates recovery procedure after return to dealer message.
PIT5832T2025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
PIT5985H2025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update.
PIT63172025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates if a customer and service tech encounter a gear display after a radio update, to replace the A11 radio for this concern.
PIT6185A2025-01-20. Service bulletin. FORWARD COLLISION AVOIDANCE: WARNINGS. This Preliminary information communicates information to reprogram the Frontview Camera Module for the AEB forward collision icon lamp illuminated in the cluster with no DTC's present.
PIC6556H2025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to check the drivers monitoring camera for a B1DD0 SYM57 or B0126 SYM82 setting with no other DTCs.
PIP6008B2025-01-20. Service bulletin. POWER TRAIN. This Preliminary information communicates a possible retainer ring dis-lodged for a DTC P2714, may not have reverse as well.
PIT63152025-01-20. 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.
PIT6274B2025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealership technicians that if they have a customer with this issue, do not replace any parts until the repair is available.
PIT5828D2025-01-20. Service bulletin. SERVICE BRAKES. 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.
PIT63132025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates confusion with the DTC naming of the frontview camera module and when dealership see the naming of the K124 Image Processing Module 1 - Processor 1 it is the B174W Front View Camera - Windshield.
PIT6213B2025-01-20. Service bulletin. STRUCTURE:BODY. This Preliminary information communicates that the Tailgate Assist Handle is not included with the Hummer EV and the RST/Denali EV trucks and how to get one if needed.
PIT6207A2025-01-20. Service bulletin. STRUCTURE:BODY. This Preliminary information communicates how to diagnosis a inoperative midgate when there is a issue with the midgate glass or operator error.

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