TRANSMISSION : INTERLOCK SYSTEM FAILED.
1993 GMC G25
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all G25 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 0 of 5 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes, Hydraulic. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
5 reportsNO PULSATION FROM THE ANTI LOCK BRAKING SYSTEM. OWNERS OBSERVATION: FEELS LIKE VEHICLE ACCELERATED. AIR BAG DID NOT DEPLOY. TT
FUEL TANK LEAKAGE REPAIRED, LEAKAGE HAS REOCCURED; NOISE COMES FROM TANK WHILE FILLING, ALSO WHILE DRIVING ONE QUARTER BELOW FILLED. REAR SEAT BELTS INOPERATIVE
BRAKE WARNING LIGHT ILLUMINATES CONSTANTLY. OWNER IDENTIFIES BRAKE PEDAL LEVEL VARIES. CULIGANS AUTO REPLACED MASTER CYLINDER. *AK
THE VEHICLE'S BATTERY BUDDY KILLS ALL POWER IN THE VEHICLE CAUSING AN ACCIDENT. TT
Official recalls
194V128000 · Interior Lighting
Jul 11, 1994
THE TRANSFORMER USED TO POWER THE NEON CENTER LIGHTBEAM CAN OVERHEAT AND CATCH ON FIRE.
Consequence & remedy
Consequence: THE OVERHEATING AND FIRES CAUSED BY THE NEON TRANSFORMER CAN RESULT IN DAMAGE TO THE LIGHTBEAM ASSEMBLY, THE ROOF OF THE VEHICLE, AND COULD RESULT IN A VEHICLE FIRE.
Remedy: MARK III DEALERS WILL MODIFY THE ASSEMBLIES TO ELIMINATE THE NEON LIGHTING FIXTURE IN THE VEHICLE AND REPLACE IT WITH INCANDESCENT LIGHTS OPERATING DIRECTLY FROM THE VEHICLE 12-VOLT BATTERY.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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