Vehicle recall 87V112000 · July 20, 1987
GMC T8H and TC4
The brake interlock shuttle valve assembly could under a heavy service brake application fracture or fragment the internal shuttle piston.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- The brake interlock shuttle valve assembly could under a heavy service brake application fracture or fragment the internal shuttle piston.
- Consequence
- 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.
- Remedy
- New improved brake interlock shuttle assembly will be installed.
- Notes
- System: brakes/interlock shuttle valve assembly.vehicle description: diesel transit buses.
Recall details
- NHTSA campaign
- 87V112000
- Reported to NHTSA
- July 20, 1987
- Filed by
- GENERAL MOTORS CORP.
- Owner notification
- July 10, 1987
- Vehicles potentially affected
- 166
- Initiated by
- the manufacturer
- Components
- Service brakes, air › Controls, pedals and linkages
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
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