Service bulletins for the 2015 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.
3109 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Turn signals are shown. Show all
| 07-08-42-006J | 2018-05-21. Service bulletin. EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT. This informational bulletin provides information for an available BCM calibrations that would restore bulb outages when using a second stage manufacturer |
|---|---|
| 07-08-42-006K | 2018-05-21. Service bulletin. EXTERIOR LIGHTING:TURN SIGNAL. This informational 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. |
| PI1268A | 2017-08-15. Service bulletin. EXTERIOR LIGHTING:TURN SIGNAL. This preliminary informational bulletin provides repair information for a customer concern of dome lamps flash/flicker on and off when operating brake pedal or turn signal. |
| 15-08-70-001 | 2017-08-15. Service bulletin. EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT. This technical bulletin provides repair information to correct a customer concern that the driver's outside wide load mirror turn signal is too bright. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.