2014 Kenworth T800 Recall

On certain trucks, the welds that attach the trailer hitch may crack due to improper welding. As a result, the hitch could detach from the truck while towing a trailer. Note: This recall only affects certain trucks with trailer hitches installed by Commercial Truck Equipment.

A trailer that detaches from a truck could create a risk of a crash.

Commercial Truck Equipment will notify owners by mail and instruct you to take your truck to a dealer to inspect the trailer hitch and repair or replace it, as necessary. You should stop using the trailer hitch until the inspection and repair have been completed.

On certain trucks, the warning light for the tractor anti-lock brake system (ABS) may not turn on if the system loses power. If this happens, the driver will not get warning that the ABS is not working properly. Note: This problem would also cause the traction control (TC) and electronic stability control (ESC) lights not to turn on.

If a driver is not warned that the ABS is not working properly, there could be an increased risk of a crash.

PACCAR will notify owners by mail and instruct you to take your truck to a dealer to update the software for the cab control module (CECU).

On certain fire trucks, the retaining ring(s) in the relief valve assembly may not have been made using high grade stainless steel, causing it to deteriorate over time due to frequent exposure to water. If the retaining ring fails, the relief valve may break down and prevent the fire pump from building adequate pressure, which would increase the risk of injury during firefighting operations. Correction: Dealers or certified technicians will inspect and replace the retaining ring(s) as necessary.

A failure of this component (accessories) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

Certain vehicles equipped with Neway ADZ Tridem rear suspension may not comply with the brake timing requirements of Canada Motor Vehicle Safety Standard (CMVSS) 121 - Air Brake Systems. The brake control airline between the two relay valves is plumbed with a 3/8" airline but should be plumbed with a 1/4" line to balance the service brake application timing and meet the requirement of the standard. An oversized airline could cause a delay in brake activation and increase stopping distances, which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will update and modify the brake piping of the air brake system.

A failure of this component (brakes) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles equipped with Cummins Westport ISL-G engines, excessive engine crankcase pressure could cause the vent tube assembly elbow to detach from the breather. This could allow engine oil to come in contact with hot surfaces, increasing the risk of fire resulting in injury and/or damage to property. Correction: Dealers will install clamps at both ends of the elbow of the breather tube assembly and reprogram the Electronic Control Module (ECM) to improve diagnostic capabilities.

A failure of this component (engine) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles, water could migrate into wiper motor head and could lead to internal corrosion. This internal corrosion could form a conductive salt bridge which could result in a short circuit, causing the wiper system to fail. Loss of windshield wiping capability, should it occur during a rainy/snowy day, may compromise the driver's ability to see the road and its users, and a short circuit could increase the risk of fire, which could result in injury and/or damage to property. Correction: Dealers will install a shield over the wiper motor to protect it from water intrusions and prevent corrosion.

A failure of this component (electrical) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles equipped with a Wabco quick release with double check valves, used to control park/spring brake application, the valve may leak internally. This could cause unintended partial or full park/spring brake application, which could affect service brake function and increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will affect repairs.

A failure of this component (brakes) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles equipped with Cummins ISL G or ISX12 G engines, incorrect engine ECU programming could cause the exhaust system temperature to become elevated during cold weather operation. This could also cause flames to be emitted from the exhaust. As a result, nearby combustible material could be ignited, increasing the risk of a fire, injury and/or damage to property. Correction: Authorized Cummins service facilities will update software programming.

A failure of this component (engine) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles, the seat belts may not comply with Canada Motor Vehicle Safety Standard 209 - Seat Belt Assemblies. Due to a defect in manufacturing, the seat belt buckle may not release as required by the standard. This could hinder egress from the vehicle in an emergency, increasing the risk of injury. Correction: Dealers will inspect and, if necessary, replace affected seatbelt buckles.

A failure of this component (seats and restraints) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

The stop/turn/tail lights used on certain vehicles may not comply with the requirements of Canada Motor Vehicle Safety Standard (CMVSS) 108 - Lighting System and Retroreflective Devices. The plastic lamp housing may shrink, causing the light to fall out of the light retention ring . In this situation, the light would no longer comply with the mounting requirements of CMVSS 108 and visibility to other motorists would be affected. This could increase the risk of a crash causing property damage and/or personal injury. Correction: Dealers will replace affected lights.

A failure of this component (lights and instruments) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain trucks, insufficient air reserve capacity is provided in the front service brake reservoir(s). This could cause reduced braking performance and increased stopping distances, potentially increasing the risk of injury and/or damage to property. Correction: Dealers will replace or add air reservoirs in order to increase capacity.

A failure of this component (brakes) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain trucks equipped with an Allison automatic transmission, the neutral start switch may have been incorrectly programmed during vehicle assembly. As such, the engine may be started when the transmission is in gear, which would allow the vehicle to move unexpectedly. This could result in property damage, or cause the vehicle to strike a bystander, potentially resulting in personal injury. Correction: Dealers will reprogram the Cab Electrical Control Unit to enable the start-in-gear protection feature.

A failure of this component (powertrain) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain trucks, an internal defect in the ignition switch can cause the starter to engage when the key is partially inserted. This would allow the engine to start unexpectedly, which could injure someone working in the engine compartment. Also, manual transmission vehicles without the neutral start option may move unexpectedly if the transmission is in gear at the time the key is inserted. This could result in a crash causing property damage and/or personal injury. Correction: Dealers will inspect and, if necessary, replace the ignition switch assembly.

A failure of this component (electrical) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles equipped with an exterior lights test switch, pressing the switch while the vehicle is in motion will cause all exterior lighting to be turned off. An unexpected loss of lighting during vehicle operation could increase the risk of a crash causing property damage and/or personal injury. Correction: Dealers will reprogram the vehicle to disable the exterior lights test switch.

A failure of this component (lights and instruments) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).