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Service bulletins for the 1998 GMC B7

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.

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

By type

By component

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
0007310012000-12-29. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY. EXPERIENCING NOISY RELEASE BEARING, SLIPPING CLUTCH OR INOERATIVE CLUTCH. *TT
8671181999-01-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ERRATIC OR PREMATURE UPSHIFTS, HARSH DOWN SHIFTS, ENGINE LUGGING, OR LOW POWER PERFORMANCE. *YC

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