1999 GMC S Series

Service bulletins

Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.

• 6092333Some customers may comment that the black plastic housing around the outside rear view mirror turns chalky or IS dull in color.
• 6091427Some customers may comment on hard, no, or slow start, backfire or kickback during crank / start, grinding or unusual noises during crank, diagnostic trouble code p0338.
• 6089154Some customers may comment about a knocking or grinding noise with the engine running.
• 6088933Vehicles may exhibit a knocking or grinding noise with the engine running.
• 6088912Concerns that the driver or passenger front power seat forward and rearward function IS inoperative.
• 634811Some owners may comment on higher than expected engine oil consumption.
• 628938Information used when diagnosing noise conditions such as engine rattle noise, spark knock at 2000 - 2500 rpm range, under a moderate to heavy load with a warmed up engine.
• 628925Some owners may experience a service engine soon light, misfire, rough idle orhard start due to a deposit build-up on the sequential central port fuel inujector (scpi) poppet valve(s).
• 628905Some customers may comment on rough idle after start up, especially after setting overnight.
• 628900Some owners may comment on higher than expected engine oil consumption, and having to add oil between oil changes.
• 625268Subject on hood hinge rattle coming from either or both front corners of the instrument panel near the hood hinge areas for 1995 - 2002 pickup and utility models.
• 616390Service engine soon light, misfire, rough idle, or hard start due to a deposit build-up on the sequential central port fuel injector (scpi) poppet valve(s). The deposit build-up may cause injector poppets to stick closed.
• 615078Some vehicles may set a false obd II with diagnostic trouble code p1404.
• 613602Some owners may experience a service engine soon light, misfire, rough idle or hard start. **Mr
• 609743General motors began providing child restrain seat top tether hardware packages to customers in the united states who requested them.
• 609696Some customers may comment on rough idle after start up, and / or a service engine soon (ses) light illuminated.
• 607577Concerns with driver / passenger seat adjuster switch bezel at seat will not stay fastened.
• 607570Some customers may comment about the service engine soon light illuminating.
• 606550Customers may comment about a squeak noise coming from the steering column while turning the steering wheel.
• 605958Some customers may comment that the cd changer will not release when depressing the eject button.
• 603825Subject regarding obd II diagnostic trouble code (dtc) p1404 (reflash vcm).

Every GMC S Series model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.