Service bulletins for the 1999 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.
282 on file from NHTSA, as of 2026-10-19.
By type
By component
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Only bulletins with component: Seats are shown. Show all
| 050850012 | 2005-11-30. Service bulletin. SEATS. UNWANTED/LOOSE SEAT MOVEMENT. *TT |
|---|---|
| 990850005 | 1999-08-27. Service bulletin. SEATS. EXPERIENCING RATTLE NOISE AT REAR SEAT UPPER ATTACHMENT WHERE THE SEAT CONNECTS WITH THE REAR CAB WALL. *TT |
| 990850004 | 1999-08-27. Service bulletin. SEATS. SUBJECT REGARDING SEAT NOISE / VIBRATION - CREAK IN FRONT SEAT CUSHION, RATTLE / VIBRATION IN 40% FRONT SEAT, JINGLE IN 20% FOLDING CENTER SEAT. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.