The 1994 GMC S15 has 2 NHTSA recall campaigns affecting an estimated 147,463 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 6 complaints with NHTSA, most often about the service brakes, hydraulic. Last updated July 5, 2026.
A VACUUM HOSE CAN DETACH FROM THE POWER BRAKE BOOSTER CHECK VALVE AS A RESULT OF ENGINE BACKFIRE.
THIS CAN RESULT IN INCREASED ENGINE IDLE AND LOSS OF POWER BRAKE ASSIST AFTER DEPLETION OF THE BOOSTER VACUUM RESERVE.
DEALERS WILL INSTALL A CLAMP ON THE POWER BRAKE BOOSTER ASSIST.
THE FUEL TANK FILLER PIPES WERE NOT MANUFACTURED TO SPECIFICATION WHICH CAUSED LOSS OF FUEL BETWEEN THE FUEL TANK FILLER PIPE AND THE VENT TUBE DURING A TEST. THE LOSS OF FUEL WAS IN EXCESS OF THE AMOUNT PERMITTED BY FMVSS NO. 301, "FUEL SYSTEM INTEGRITY."
CONSEQUENCE OF NON-COMPLIANCE: IF A VEHICLE CRASH WERE TO OCCUR, IT MAY CAUSE THE JOINT BETWEEN THE FUEL TANK FILLER PIPES AND THE VENT TUBE TO CRACK. IF THE VEHICLE OVERTURNED, FUEL LEAKAGE WOULD OCCUR, WHICH COULD RESULT IN A POST-CRASH FIRE.
DEALERS WILL REPLACE THE FUEL FILLER PIPE ON THESE VEHICLES.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“Odor of raw gas very strong, repeated diagnostics come up with nothing. *ak”
“Our 1994 gmc jimmy was being driven by my wife and had my two children inside. She exited the parking lot of the local food store. After crossing to the opposite side of the street, she noticed traffic stopped ahead for the upcoming stoplight. She applied the brakes, but nothing happened, and she…”
“Windshield wipers fail intermittently, wiper motor module replaced. Some chevrolet vehicles have been recalled for this problem (98v-150)”
“While driving experienced intermittent abs failure, during normal braking on wet pavement vehicle pulls to extreme left, dlr can't recreate condition.*ak”
“When applied the abs brakes on dry pavement the pedal traveled to the floor, causing extended stopping distance which resulted in a collision. Please give any further details. *ak”
“Fuel tank leaking around seam. Has there been any recalls on this problem? Many people that have this year gmc jimmy has had the same problem.*ak”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1994 GMC S15 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.