Kenworth T370 recalls

• Brakes#2024744December 9, 2024

  23,441 units affected

  Issue: On certain trucks, poor signal strength could cause the electronic control unit (ECU) to stop working or not to work properly. As a result, some safety systems may not work, including the antilock braking system, automatic traction control, electronic stability control, active cruise control and the collision mitigation system. Safety Risks: Vehicle safety systems that don't work correctly could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and advise you to take your truck to a dealership to reprogram the ECU software.

• Steering#2022592October 19, 2022

  98 units affected

  Issue: On certain trucks, the tie rod end clamps could crack and loosen. If this happens, the threads on the tie rod end could become damaged and the tie rod end could separate. This could cause a loss of steering control. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your truck to a dealership to replace both tie rod end clamps.

• Steering#2022410July 28, 2022

  3,041 units affected

  Issue: 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. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: 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.

• Steering#2022210April 25, 2022

  985 units affected

  Issue: On certain trucks, the fasteners that attach the steer arm to the steering knuckle may fail. If this happens, the steer arm could separate from the steering knuckle and cause a loss of steering control. Note: This recall only affects trucks equipped with a Dana D-series steer axle. Safety Risk: A loss of steering control could increase the risk of a crash. Corrective Actions: PACCAR will notify owners by mail. The corrective actions for this recall are under development.

• Fuel System#2021480August 3, 2021

  71 units affected

  Issue: On certain trucks, the hoses between the fuel pump and remote fuel filter may be defective and could leak. Note: This recall only affects trucks equipped with a Cummins 2021 model year L9 diesel engine. Safety Risk: A fuel leak can create the risk of a fire. Corrective Actions: PACCAR will notify owners by mail and instruct you to take your truck to a Cummins authorized service center to replace the fuel hoses.

• Fuel System#2021323May 26, 2021

  19 units affected

  Issue: On certain trucks, the fuel rail assembly could develop a leak. Note: This recall only affects trucks equipped with a Cummins L9 or ISX12 diesel engine. Safety Risk: A fuel leak can create the risk of a fire. Corrective Actions: Cummins will notify owners by mail and instruct you to take your truck to a Cummins authorized service center to inspect the fuel rail. If damage is found, the fuel rail and fuel lines will be replaced. If no damage is found, the fuel rail will be reassembled with new crush washers using a special tool.

• Structure#2020551November 12, 2020

  91 units affected

  Issue: 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. Safety Risk: A trailer that detaches from a truck could create a risk of a crash. Corrective Actions: 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.

• Lights And Instruments#2020148April 7, 2020

  65,284 units affected

  Issue: 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. Safety Risk: If a driver is not warned that the ABS is not working properly, there could be an increased risk of a crash. Corrective Actions: 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).

• Brakes#2020057February 14, 2020

  20 units affected

  Issue: Certain trucks were built without a secondary brake relay valve. As a result, the brake application may be delayed after pushing on the brake pedal. This could cause increased stopping distances. Safety Risk: Delayed brake application can cause increased stopping distances and increase the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct you to take your truck to a Kenworth dealer to inspect the brake system, and add a second R12 brake relay valve, as required.

• Brakes#2019415August 16, 2019

  5 units affected

  Issue: On certain trucks, an air supply hose for the brake system could separate due to loose compression fittings. This could result in a loss of air to the brakes. This would affect brake performance. Safety Risk: Reduced brake performance can cause increased stopping distances and create the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct them to take their vehicle to a Kenworth dealer to inspect all brake treadle valve hose connections. Any loose fittings will be properly tightened.

• Powertrain#2018739December 24, 2018

  2,634 units affected

  On certain vehicles equipped with an Eaton automated manual transmission and electronic clutch actuator (ECA), the clutch may have been manufactured improperly and could fail. If this occurs, the broken clutch components could prevent the transmission from disengaging or shifting to neutral. This could result in unintended vehicle movement, even if the parking brake is applied, increasing the risk of a crash causing injury and/or damage to property. Correction: Dealers will recalibrate the Transmission Control Module (TCM).

• Accessories#2017590November 30, 2017

  19 units affected

  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.

• Steering#2017461September 25, 2017

  281 units affected

  On certain vehicles, the castellated nut and cotter pin on the steer axle may not have been tightened to specification. This could cause the tie rod to become loose in the steer axle, which would result in audible noise and/or looseness in steering. If the vehicle were continued to be operated in this condition, the tie rod could disconnect from the knuckle, resulting in a complete loss of control of a vehicle wheel, which would increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will inspect the torque of the castellated nuts on the tie rod, and replace the tie rod stud and knuckle as necessary.

• Engine#2015418September 23, 2015

  9 units affected

  On certain vehicles equipped with a Cummins engine, the Engine Control Module (ECM) could develop an internal electrical short circuit that could blow a fuse in the ECM’s electrical supply circuit. This could result in an unexpected engine stall without the ability to restart the engine, which could increase the risk of a crash. Correction: Dealers will replacing the existing, affected ECM with a new ECM.

• Electrical#2015190May 8, 2015

  22,815 units affected

  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.

• Brakes#2014590December 23, 2014

  218 units affected

  On certain vehicles, brake chamber diaphragm(s) may not be properly seated. This could lead to brake drag, causing brake overheating or unintended spring brake application. These issues could increase the risk of a crash causing injury and/or property damage. Correction: Dealers will replace the brake chambers.

• Fuel System#2014339August 7, 2014

  199 units affected

  On certain vehicles equipped with Cummins ISB and ISL engines, the fuel filter shell and nut plate could separate, causing a fuel leak and also causing the engine to stall. Stalling would result in a loss of motive power, increasing the risk of a crash resulting in injury and/or damage to property. Correction: Dealers will replace the fuel filter.

• Seats And Restraints#2014020January 24, 2014

  1,646 units affected

  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.

• Lights And Instruments#2013432December 5, 2013

  702 units affected

  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.

• Electrical#2013178May 24, 2013

  255 units affected

  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.

• Brakes#2012027January 27, 2012

  1,434 units affected

  On certain trucks equipped with Bendix ATR-6 Antilock Traction Relay valves, in extremely cold conditions (at or below -18 degrees Celsius), internal ATR valve leakage can occur. This could cause unintended brake application, which could overheat the affected brakes and cause a fire. Also, in certain low traction conditions, unexpected brake application can cause a loss of vehicle control and a crash. These issues could result in property damage and/or personal injury. Correction: Dealers will update the cover assembly on the ATR valves.

• Brakes#2011105March 7, 2011

  64 units affected

  On certain vehicles, the slack adjuster housings may have been manufactured incorrectly, which could allow the housings to fracture and fail. As a result, the wheel brake to which the slack adjuster is attached would no longer function, which could increase vehicle stopping distances. Should a steer axle slack adjuster fail, it could also cause the vehicle to pull to one side during braking. Either problem could result in a crash causing property damage and/or personal injury. Correction: Dealers will inspect and, if necessary, replace the slack adjusters.

• Brakes#2010150May 10, 2010

  2 units affected

  On certain trucks, the air governor was assembled with a blank plug instead of a breather. Without the breather, the air governor may not be able to detect the loss of pressure in the air system during normal use, which may result in a slow activation of the emergency spring brakes. Although the operator is warned of low air pressure by audible and visual warning alarms, a crash causing property damage, personal injury or death is possible if these warnings are ignored. Correction: Dealers will replace the blank plug with a breather, and inspect the system for proper function.

• Emissions#2009256September 8, 2009

  9 units affected

  The emergency vehicle applications that are subject of this recall are designed with a dash-mounted switch that enables the vehicle operator to inhibit the aftertreatment diesel particulate filter regeneration in environments where the operator believes it may be unsafe for elevated exhaust temperatures. Due to an issue with the logic in the Electronic Control Module (ECM) software in certain vehicles, the switch may not function correctly, leading the operator to believe that the switch is in "inhibit" mode when, in fact, it is not. As a consequence, the operator may unknowingly permit hot exhaust gases to exit the vehicle tailpipe, increase the risk of melting or burning of nearby surfaces, or a fire, causing property damage, personal injury or death. Correction: Cummins dealers will upgrade the ECM software.

Canadian data updated August 24, 2026