There have been 3 safety recalls for the GMC T8H. The most recent recalls are shown below. Table 1 and Table 2 show the historical recalls and the recall statistics by the model year of the GMC T8H.
The fracture or fragmention of the interlock shuttlevalve piston could result in partial or complete loss of rear braking. Areduction in braking ability could result in a vehicle crash without priorwarning.
| Recalled Vehicles: 1986 GMC T8H, 1987 GMC TC4 |
| Component: SERVICE BRAKES, AIR:CONTROLS |
| Recall Summary: The brake interlock shuttle valve assembly could under a heavy service brake application fracture or fragment the internal shuttle piston. ... Details of this recall 🔎 |
| Recalled Vehicles: 1980 GMC T6H, 1981 GMC T6H, 1982 GMC T6H, 1983 GMC T6H, 1980 GMC T8H, 1981 GMC T8H, 1982 GMC T8H, 1983 GMC T8H |
| Component: ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH |
| Recall Summary: 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. ... Details of this recall 🔎 |
| Recalled Vehicles: 1975 GMC P8M, 1976 GMC P8M, 1976 GMC T6H, 1975 GMC T8H, 1976 GMC T8H |
| Component: STEERING:GEAR BOX (OTHER THAN RACK AND PINION) |
| Recall Summary: ... Details of this recall 🔎 |
| Date | Component | Vehicle Affected |
|---|---|---|
| Jul. 20, 1987 | Service Brakes, Air:controls | 166 |
| Mar. 16, 1984 | Electrical System:wiring:interior/under Dash | 779 |
| Jun. 24, 1976 | Steering:gear Box (other Than Rack And Pinion) | 1,210 |
| Model | # Recalls |
|---|---|
| 1986 GMC T8H | 1 |
| 1983 GMC T8H | 1 |
| 1982 GMC T8H | 1 |
| 1981 GMC T8H | 1 |
| 1980 GMC T8H | 1 |
| 1976 GMC T8H | 1 |
| 1975 GMC T8H | 1 |