The 1990 GMC K20 has 2 NHTSA recall campaigns affecting an estimated 2,030 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.
LOOSE PIVOT BOLT HOLDING THE BRAKE PEDAL TO ITS SUPPORT BRACKET COULD DISENGAGE FROM THE NUT.
THIS COULD CAUSE LOSS OF BRAKING ACTIVITY THAT COULDRESULT IN A TRUCK CRASH WITHOUT PRIOR WARNING.
RETORQUE BRAKE PEDAL PIVOT BOLTS TO SPECIFICATIONS TO PREVENT LOOSENING.
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.
A HOLE COULD BE RUBBED THROUGH THESE FUEL LINES, ALLOWING FUEL LEAKAGE NEAR EXHAUST CROSSOVER PIPE; THIS COULD RESULT IN AN ENGINE COMPARTMENT FIRE THAT COULD SPREAD TO THE PASSENGER COMPARTMENT.
INSTALL NEWLY DESIGNED FUEL LINE ROUTING BRACKET TO PREVENT CONTACT AND, IF NECESSARY, REPLACE FUEL LINES.
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1990 GMC K20 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.