RecallMyCar

GMC C20 Recalls & Complaints by Model Year

NHTSA lists 8 safety recalls and 0 owner complaints across 8 model years of the GMC C20 (1975–1990).

8
safety recalls, all years
0
owner complaints, all years
1979
year with most recalls

Pick your GMC C20 model year

Model yearRecallsComplaints
1990 GMC C2020
1982 GMC C2010
1981 GMC C2010
1980 GMC C2010
1979 GMC C2020
1977 GMC C2010
1976 GMC C2010
1975 GMC C2010

All GMC C20 recalls (8)

Every NHTSA safety campaign that lists a GMC C20, most recent first, with the model years each one covers.

  1. Pedals and linkages (service brakes)

    NHTSA 90V108000 Reported 1,962 vehicles potentially affected GENERAL MOTORS CORP.

    Loose pivot bolt holding the brake pedal to its support bracket could disengage from the nut.

    Remedy: Retorque brake pedal pivot bolts to specifications to prevent loosening.

    Model years: 1990

  2. Hoses, lines/piping, and fittings (fuel system)

    NHTSA 90V015000 Reported 68 vehicles potentially affected GENERAL MOTORS CORP.

    On c and k models, feed and or return fuel lines can contact the automatic transmission shift linkage cordon shaft. In addition, on k models lines may also contact front propshaft. In either case the fuel lines could be damaged resulting in a fuel leak.

    Remedy: Install newly designed fuel line routing bracket to prevent contact and, if necessary, replace fuel lines.

    Model years: 1990

  3. Axle shaft (power train)

    NHTSA 82V081000 Reported 8,881 vehicles potentially affected GENERAL MOTORS CORP.

    The rear axle shafts received improper heat treatment during manufacture. The shaft may break and the tire and wheel assembly could disengage from the vehicle.

    Remedy: Dealer will replace both rear axle shaft assemblies, if necessary, free of charge.

    Model years: 1982

  4. Fluid (service brakes)

    NHTSA 81V148000 Reported 17 vehicles potentially affected GENERAL MOTORS CORP.

    The hydraulic brake fluid used in certain vehicles may fail to comply with the brake fluid boiling point requirements of federal motor vehicle safety standard no. 116, "motor vehicle brake fluids". Braking efficiency may be reduced and vehicle stopping distance increased, especially when hard or frequent braking raises brake fluid…

    Remedy: Suspect hydraulic brake fluid will be bled from the brake system and replaced with GM delco supreme no. 11 or an equivalent, without charge.

    Model years: 1981

  5. Vacuum (service brakes)

    NHTSA 81V010000 Reported 320,677 vehicles potentially affected GENERAL MOTORS CORP.

    Fatigue cracks may develop in the brake vacuum booster housing. This may cause a vacuum leak and reduce the effectiveness of the brakes. After prolonged use, the cracks may develop to the extent that the booster may separate from the vehicle.

    Remedy: Vehicles will be inspected for fatigue cracks in the brake vacuum booster. Those without cracks will have a support brace installed. Those with evidence of cracking will have a new brake vacuum booster and support…

    Model years: 1979, 1980

  6. Switch (exterior lighting)

    NHTSA 79V142000 Reported 15,328 vehicles potentially affected GENERAL MOTORS CORP.

    On the involved vehicles the brake stoplight and cruise control switch which is operated by the brake pedal may have been assembled with an incorrect lubricant on the actuating plunger. This can cause the rear brake stoplights to become inoperative and the cruise control, if activated, to stay electrically engaged.

    Remedy: Dealer will inspect and, if necessary, replace the brake stoplight and cruise control switch at no cost to owner.

    Model years: 1979

  7. Accelerator pedal (vehicle speed control)

    NHTSA 77V178000 Reported 330,468 vehicles potentially affected GENERAL MOTORS CORP.

    The accelerator pedal rod in combination with the pedal installed on the involved vehicles may cut through the floor pan rubber mat or carpet into the thick resilient insulation pad underneath during heavy or repeated full throttle applications. As a result, the accelerator pedal rod may catch in the mat or carpet, preventing the…

    Remedy: Dealer will install a new accelerator pedal and retainer designed to prevent the accelerator pedal rod from cutting the rubber mat or carpet. This will be performed without charge.

    Model years: 1976, 1977

  8. Suspension: lower arm

    NHTSA 77V098000 Reported 107,584 vehicles potentially affected GENERAL MOTORS CORP.

    The front suspension control arms were assembled with ball joints which may contain sockets that were not properly heat-treated. This may cause the socket to wear rapidly and allow the ball joint stud to separate from the socket, causing either the left or right wheel suspension to collapse.

    Remedy: Dealer will inspect and, where necessary, will replace the ball joints without charge to owner.

    Model years: 1975

Other GMC models

Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.