1991 Chevrolet S10 problems & reliability
174 owner complaints filed with NHTSA for the 1991 Chevrolet S10. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
15 complaints report injuries (84 injured, 2 deaths reported).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Service Brakes, Hydraulic | 70 | 40% |
| Seat Belts | 21 | 12% |
| Engine and Engine Cooling | 18 | 10% |
| Electrical System | 16 | 9% |
| Structure | 13 | 7% |
| Power Train | 11 | 6% |
| Fuel System, Gasoline | 10 | 6% |
| Suspension | 8 | 5% |
| Tires | 8 | 5% |
| Equipment | 7 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Complaints by incident year
What owners report
“(1) while sitting in heavy traffic at a stop light in the city. I have a habit of not stopping close to vehicles at stop lights. While stopped at the light behind a new looking explorer of some kind my truck lunged forward without warning by itself with my feet on the brakes. If I had stopped closer to the van I would…”
Vehicle Speed Control · filed Aug 25, 2014
“Tl* - the contact stated that while driving her 1991 chevrolet s10 blazer with the cruise control engaged the vehicle decelerates. Then the accelerator pedal went to the floor while she still had her foot on the brake pedal. The contact stated that she doesn't use the cruise control any more, she's afraid that this…”
Electrical System · filed Jan 18, 2007
“Body rust and paint chipping and peeling digital dashboard is dead except for speedometer and trip meter seatbelts do not lock up when you slam the brakes on front suspension is very squiky”
Unknown OR Other · filed Apr 22, 2004
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- SPARE TIRE SEPARATION FROM VEHICLE
Engineering Analysis EA99018 · opened Jun 30, 1999 · closed Oct 20, 2000
- SEPARATION OF SPARE TIRE FROM VEHICLE
Preliminary Evaluation PE99004 · opened Jan 15, 1999 · closed Jun 30, 1999
- ABS BRAKING SYSTEM
Engineering Analysis EA94038 · opened Oct 31, 1994 · closed Feb 28, 2000 · led to recall 99V193000
- ENGINE COMPARTMENT FIRES
Engineering Analysis EA94029 · opened Jul 29, 1994 · closed Jul 31, 1996
- ABS BRAKING SYSTEM FAILS
Preliminary Evaluation PE94046 · opened Jun 17, 1994 · closed Oct 31, 1994
- HIGH IDLE FLARE
Engineering Analysis EA92015 · opened May 22, 1992 · closed May 28, 1993
- HIGH IDLE FLARE
Preliminary Evaluation PE92001 · opened Jan 7, 1992 · closed May 22, 1992
Technical service bulletins
7 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1991 Chevrolet S10.
Diagnosis of cracked or broken transmission case. *tt 2006 and prior cars and light duty trucks. *tt
020730024A · Service Bulletin/Repair Instructions · issued Aug 1, 2005
Diagnostic information for intermittent transmission downshift, slip, busy/cycling tcc or noisy cooling fan. *tt
990730016A · Service Bulletin/Repair Instructions · issued Oct 1, 2002
Water leak at the a/c recirculation door (install new hood hinge seal). *tw
GM561204 · Service Bulletin/Repair Instructions · issued Apr 1, 1995
End gate latch rattle (install revised striker). *tw
GM161514 · Service Bulletin/Repair Instructions · issued Apr 1, 1995
COLD ENGINE KNOCK. *TW
376105 · Service Bulletin/Repair Instructions · issued Feb 1, 1995
Oil pressure gauge reading concerns. *tw
476149 · Service Bulletin/Repair Instructions · issued Dec 1, 1994
Front door side glass binding/track disengagement. *tw
9310A343 · Service Bulletin/Repair Instructions · issued Feb 1, 1993
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 1991 Chevrolet S10 in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1991 Chevrolet S10?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.