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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

Only bulletins with component: Lighting are shown. Show all

Bulletins, newest first
07-08-42-006U2025-12-03. Service bulletin. EXTERIOR LIGHTING. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
21-NA-1662025-06-06. Service bulletin. EXTERIOR LIGHTING; STEERING. This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.
PIE08272025-06-06. Service bulletin. EXTERIOR LIGHTING. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the headlamp, turn single and/or daytime running lamps flickering and/or inoperative.
07-08-42-006T2025-04-25. Service bulletin. EXTERIOR LIGHTING. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
PIT6280A2025-02-18. Service bulletin. STRUCTURE:BODY; EXTERIOR LIGHTING. This Preliminary information communicates that a dealer may install the perimeter rocker lighting kit and find that it will not illuminate. The dealer is advised that updated software is now available to repair this concern.
01-08-42-001Q2025-02-11. Service bulletin. EXTERIOR LIGHTING. This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.
24-NA-1522024-12-14. Service bulletin. LANE DEPARTURE: BLIND SPOT DETECTION; EXTERIOR LIGHTING. This bulletin offers Information on Intellibeam Inop, Auto High Beam Headlamps, Side Blind Zone Inop, and/or Side Object Detection Inop.

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