GMC T8H Recalls & Complaints by Model Year

NHTSA lists 3 safety recalls and 0 owner complaints across 7 model years of the GMC T8H (1975–1986).

Pick your GMC T8H model year

• 1975
• 1976
• 1980
• 1981
• 1982
• 1983
• 1986

All GMC T8H recalls (3)

Every NHTSA safety campaign that lists a GMC T8H, most recent first, with the model years each one covers.

1. Service brakes, air: controls, pedals and linkages

   NHTSA 87V112000 Reported July 20, 1987 166 vehicles potentially affected GENERAL MOTORS CORP.

   The brake interlock shuttle valve assembly could under a heavy service brake application fracture or fragment the internal shuttle piston.

   Remedy: New improved brake interlock shuttle assembly will be installed.

   Model years: 1986

2. Interior/under dash (electrical system)

   NHTSA 84V029000 Reported March 16, 1984 779 vehicles potentially affected GENERAL MOTORS CORP.

   The main feed wire and horn relay-flasher feed wire may have been connected in reverse positions in the number two circuit breaker in the driver"s control panel.

   Remedy: Owners are asked to determine if the number two circuit breaker is correctly wired, and if not, to correct the wiring as specified in the owner"s notification.

   Model years: 1980, 1981, 1982, 1983

3. Gear box (other than rack and pinion) (steering)

   NHTSA 76V091000 Reported June 24, 1976 1,210 vehicles potentially affected GENERAL MOTORS CORP.

   Model years: 1975, 1976

Other GMC models

• Sierra 15008,930 complaints
• Acadia5,569 complaints
• Yukon4,989 complaints
• Sierra3,937 complaints
• Terrain3,124 complaints
• Jimmy2,720 complaints
• Envoy2,459 complaints
• Yukon XL2,417 complaints

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.