Problems owners report
Complaints filed with NHTSA about the 1991 GMC S15, by the system named in each complaint. One complaint can name several.
- Service brakes, hydraulic6
- Seat belts2
- Electrical system1
- Engine and engine cooling1
- Power train1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Recalls
THE ENGINE COOLING FAN BLADES BREAK AS A RESULT OF FATIGUE AND/OR VEHICLE INDUCED STRESS.
NUTS USED TO ATTACH LOWER CONTROL ARMS, REAR SPRING AND SHACKLE, AND REAR SHOCK ABSORBERS DO NOT MEET SPECIFICATIONS AND COULD "STRIP".
USE OF IMPROPER PRIMER ON METAL SURFACES OF WINDSHIELD AND SIDE WINDOW OPENINGS COULD CAUSE LOW ADHESION TO THE METAL SURFACE AND WOULD NOT PROVIDE RETENTION REQUIRED BY FMVSS 212.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What GMC told its dealers about the 1991 GMC S15: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 10007838 | DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT |
NHTSA manufacturer communications (public domain)
NHTSA investigations
ENGINE COMPARTMENT FIRES
NHTSA Office of Defects Investigation