GMC CAMPAIGN NO 71-C-6.MEDIUM DUTY TRUCKS AND SCHOOL BUSES W ITH 305C OR 351CV-6 GASOLINE ENGINE.CARBURETOR THROTTLE SHA FT MAY BE EXCESSIVELY WORN ANDCOULD BREAK.THIS WOULD ALLOWTHROTTLE VALVES TO REMAIN IN OPEN POSITIONRENDERING ACCELERAT OR INEFFECTIVE AND MAKING VEHICLE DIFFICULT TO STOP.(CORRECTBY INSTALLING NEW…
1970 GMC Sm5500 Recalls
Recalls on record Updated July 2026
The 1970 GMC Sm5500 has 1 NHTSA recall campaign affecting an estimated 11,550 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.
Recall campaigns
Defect
Sources & methodology
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1970 GMC Sm5500 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.