The 1991 GMC S15 has 3 NHTSA recall campaigns affecting an estimated 215,470 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 12 complaints with NHTSA, most often about the service brakes, hydraulic. Last updated July 5, 2026.
Recall campaigns
ENGINE AND ENGINE COOLING93V0080001993-01-14215,052 affected
Defect
THE ENGINE COOLING FAN BLADES BREAK AS A RESULT OF FATIGUE AND/OR VEHICLE INDUCED STRESS.
Consequence
IF THE BLADE BREAKAGE OCCURS WHILE THE HOOD IS OPEN, APERSON WORKING UNDER THE HOOD OR IN THE VICINITY OF THE VEHICLE COULD BE STRUCKAND INJURED BY THE BLADE SEGMENT.
Remedy
INSTALL A NEWLY DESIGNED FAN ASSEMBLY.
SUSPENSION90V1930001990-11-14237 affected
Defect
NUTS USED TO ATTACH LOWER CONTROL ARMS, REAR SPRING AND SHACKLE, AND REAR SHOCK ABSORBERS DO NOT MEET SPECIFICATIONS AND COULD "STRIP".
Consequence
STRIPPING OF THE NUTS IN THE REAR SUSPENSION COULD REDUCECLAMP LOAD ON LOWER CONTROL ARM, WHICH COULD ALLOW THE ARM TO DETACH, RESULTINGIN LOSS OF VEHICLE CONTROL AND AN ACCIDENT.
Remedy
REPLACE LOWER CONTROL ARM ATTACHMENT NUTS AS WELL AS REAR SPRING AND SHACKLE, AND REAR SHOCK ABSORBER NUTS.
VISIBILITY90V1070001990-06-04181 affected
Defect
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.
Consequence
WINDSHIELD AND SIDE WINDOW GLASS WOULD NOT PREVENT THEEJECTION OF VEHICLE OCCUPANTS DURING A VEHICLE CRASH, WHICH CAUSES SERIOUSINJURIES AND FATALITIES.
Remedy
REMOVE AND REINSTALL GLASS USING PROPER PRIMER.
Complaints by component
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
6
SEAT BELTS:FRONT:BUCKLE ASSEMBLY
2
ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH
1
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
1
POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT
1
SERVICE BRAKES, HYDRAULIC
1
Total complaints12
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“Brakes failed.”
“Abs failed; electronic dash panel burned up; and the rear axle shaft bearing failed.”
“Abs failed; electronic dash panel burned up; and the rear axle shaft bearing failed.”
“Abs failed; electronic dash panel burned up; and the rear axle shaft bearing failed.”
“Failure on the abs brakes, the lights stay on the dash. *ak”
“Failure on the abs brakes, the lights stay on the dash. *ak”
“While driving experience intermittent failure of anti-lock brake control module, rendering abs inoperative, without warning. Tt electronics inside abs control module failed and the unit was not servicable. *yh”
“Anti-lock braking system has become inoperative, no longer functions , abs lights came on and remained on, dealer will change electro hydraulic control unit. *ak”
Defect investigations
InvestigationEA94029 Opened 1994-07-29 · closed 1996-07-31
ENGINE COMPARTMENT FIRES
AN ALLEGED MALFUNCTION IN THE ATLERNATOR RESULTING IN ENGINE COMPARTMET FIRES.
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1991 GMC S15 as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
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