2023 Peterbilt 537 Recall

On certain trucks, the accelerator pedal could stick and cause the engine not to return to idle.

An engine that doesn't return to idle could cause a loss of control and increase the risk of a crash.

PACCAR will notify owners by mail and advise you to take your truck to a dealership to inspect and, if necessary, replace the accelerator pedal assembly.

On certain trucks, the wiring in the right-hand shift stalk may not be properly connected. As a result, you may not be able to shift the transmission back into gear after coming to a stop.

A loss of power to the wheels could increase the risk of a crash.

PACCAR will notify owners by mail and advise you to take your truck to a dealership to inspect and, if necessary, replace the right-hand shift stalk assembly.

On certain trucks, the glass for the side mirror(s) may not be properly attached. As a result, the mirror glass could fall off.

A missing mirror will reduce rear visibility and could increase the risk of a crash.

PACCAR will notify owners by mail and advise you to take your truck to a dealership to inspect and, if necessary, secure the side mirror glass.

On certain trucks, the remote fuel filter hoses may have been damaged during production. As a result, a fuel hose could disconnect and create a fuel leak. This could also cause the engine to stall while driving. Note: This recall only affects trucks equipped with an L9/PX-9 engine.

A fuel leak can create the risk of a fire. Additionally, a sudden loss of engine power could increase the risk of a crash.

PACCAR and/or Cummins will notify owners by mail and advise you to take your truck to a Cummins authorized service centre to install improved fuel filter hoses.

On a small number of trucks, the bolts that attach the driveshaft may loosen. If this happens, the driveshaft could separate from the truck and cause a loss of power to the wheels.

A sudden loss of power to the wheels could increase the risk of a crash. Additionally, a driveshaft that detaches from a vehicle could create a hazard for others and increase the risk of a crash.

PACCAR will notify owners by mail and advise you to take your truck to a dealership to replace the driveshaft bolts.

On certain trucks, when the brake pedal is fully applied and released quickly, the pedal plunger could jam or disconnect from the brake valve. If this happens, there could be a loss of service brakes.

A loss of brakes can increase the risk of a crash.

PACCAR will notify owners by mail. The corrective actions for this recall are under development.

On certain trucks, a problem in the engine control module (ECM) could cause a short circuit. If this happens, the engine could stall and you may not be able to restart it.

A sudden loss of engine power could increase the risk of a crash.

PACCAR will notify owners by mail and instruct you to take your truck to a Cummins authorized service center to replace the engine control module.

On certain trucks, the steering gear may not have been assembled correctly. As a result, the steering gear could break and cause a loss of steering.

A loss of steering control could create the risk of a crash.

PACCAR will notify owners by mail and instruct you to take your vehicle to a dealership to inspect the serial number on the steering gear, and replace it, if necessary.

On a small number of trucks, the warning light for the antilock brake system (ABS) doesn't turn on when there is a problem with the ABS.

A driver that is not warned about a problem with the antilock brake system could have an increased risk of a crash.

PACCAR will notify owners by mail and instruct you to take your truck to a dealership to update the vehicle software.