What gets recalled
2000 GMC B7 recalls (3)
Engine and engine cooling › Engine › Gasoline
Certain medium duty c-series and b7 school bus chassis equipped with a 7.4 liter gas engine and an impco lpg conversion kit. Some of these vehicles May have engine backfires with sufficient force to damage the engine air intake system and the air cleaner filter element.
Remedy: Dealers will install a redesigned mixer bonnet and air cleaner housing cover, selective upgrades in various connections related to the air induction system, and if needed, a new air cleaner filter.
Service brakes, air › Antilock
Vehicle description: school buses, medium duty trucks and tractors built with bendix air ABS with an ec-17 1030r electronic control unit (ECU), there have been reports of unwanted ABS activation at low speeds caused by 1) chafed ABS wheel speed sensor wires on rotating parts or 2) a damaged component at the wheel end that…
Remedy: Dealers will replace the ABS ECU.
Power train › Automatic transmission
Vehicle description: medium duty trucks. The transmission fluid could leak from a heat degraded transmission fluid cooler hose onto the exhaust system on the passenger's side of the vehicle.
Remedy: Dealers will install a new transmission fluid cooler inlet hose and outlet hose designed with a heat sleeve and ensure adequate clearance to the exhaust system take-down pipe.
1999 GMC B7 recalls (3)
Service brakes, air › Antilock
Vehicle description: school buses, medium duty trucks and tractors built with bendix air ABS with an ec-17 1030r electronic control unit (ECU), there have been reports of unwanted ABS activation at low speeds caused by 1) chafed ABS wheel speed sensor wires on rotating parts or 2) a damaged component at the wheel end that…
Remedy: Dealers will replace the ABS ECU.
Power train › Automatic transmission
Vehicle description: medium duty trucks. The transmission fluid could leak from a heat degraded transmission fluid cooler hose onto the exhaust system on the passenger's side of the vehicle.
Remedy: Dealers will install a new transmission fluid cooler inlet hose and outlet hose designed with a heat sleeve and ensure adequate clearance to the exhaust system take-down pipe.
Power train › Automatic transmission
Vehicle description: medium duty conventional cab trucks and school bus chassis equipped with an automatic transmission, have transmission shift cable end rods that have not been crimped to the proper specification.
Remedy: Dealers will install a new shift cable.
1998 GMC B7 recalls (3)
Service brakes, air › Antilock
Vehicle description: school buses, medium duty trucks and tractors built with bendix air ABS with an ec-17 1030r electronic control unit (ECU), there have been reports of unwanted ABS activation at low speeds caused by 1) chafed ABS wheel speed sensor wires on rotating parts or 2) a damaged component at the wheel end that…
Remedy: Dealers will replace the ABS ECU.
Steering › Gear box (other than rack and pinion)
Vehicle description: school buses equipped with power steering. Some of these vehicles were assembled with an incorrect intermediate steering shaft. The overlap in the slip joint is insufficient allowing the steering shaft to separate.
Remedy: Dealers will inspect the steering shaft and, if necessary, replace the intermediate steering shaft.
Electrical system › Wiring › Front underhood
Vehicle description: medium duty trucks equipped with air brakes and anti-lock brake systems. Chaffing of the electric brake control harness can occur resulting in an electrical grounding condition. This will illuminate a warning light on the instrument panel and shut off the ABS feature.
Remedy: Dealers will inspect the harness for chaffing and proper routing and will repair if necessary.
1997 GMC B7 recalls (2)
Steering › Hydraulic power assist › Hose, piping, and connections
Vehicle description: school buses equipped with 6.0l gasoline engine, 10,000 lb. Front axle, and power steering. The power steering fluid can leak as a result of a power steering fluid supply hose interference condition.
Remedy: Dealers will install a new power steering hose and adapter.
Steering › Gear box (other than rack and pinion)
Vehicle description: school buses equipped with power steering. Some of these vehicles were assembled with an incorrect intermediate steering shaft. The overlap in the slip joint is insufficient allowing the steering shaft to separate.
Remedy: Dealers will inspect the steering shaft and, if necessary, replace the intermediate steering shaft.
Frequently asked questions
How many recalls does the GMC B7 have?
NHTSA lists 7 recalls for the GMC B7 across 4 model years.
How do I know if my GMC B7 has an open recall?
Enter your 17-character VIN in our VIN decoder & recall check or on nhtsa.gov/recalls. Dealers fix recalls for free, even if you are not the original owner.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.