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Transport Canada recall 2023524

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

Campaign
Published byTransport Canada (Canada)
Campaign number2023524
Manufacturer's number23PBJ / 22KWJ
Reported2023-09-21
ComponentBrakes
Notification typeCompliance Mfr
Units potentially affected8

What is wrong

Issue:

On a small number of trucks, the trailer brakes may release too slowly when the brake pedal is released. Canadian regulations require trailer brakes to release within a certain time.

Safety Risk:

In certain situations, trailer brakes that release too slowly 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 replace specific fittings and hoses in the air brake system.

Vehicles this campaign lists
2022 KENWORTH T480
2023 KENWORTH T480
2024 KENWORTH T480

A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.

Bulletins for the same vehicles and component

Bulletins for the same vehicles and component
24KWE/24PBE2026-01-06. Emissions. The parts section has been updated for clarity. The right-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector. Loss of communication between the right-hand shift stalk and the vehicle may result in the vehicle being disabled after it comes to a stop, thereby increasing the risk of crash or injury. A warning will appear on the dash display when communication is lost, including transmission or engine warnings, “!” next to DNR/DNRP indicator, “-“ in the DNR/DNRP indicator, and/or chimes, depending upon whether you are operating a diesel/gas or battery electric vehicle.
24KWD2025-11-05. Service bulletin. SAFETY RECALL Additional chassis have been included. The chassis list has been updated. Certain T370 / T440 / T470 / T480 / T660 / T680 / T800 / T880 / W900 / C500 chassis may be equipped with air tank reservoirs that have less than twelve times the combined volume of all service brake chambers which fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) No.121, Air Brake Systems.
23KWJ2024-01-05. Service bulletin. Safety Recall 23KWJ: T280/T380/T480 Delayed Trailer Brake Release T280/T380/T480 Delayed Trailer Brake Release. Safety Recall Certain T280/T380/T480 chassis built with 2.1m Medium Duty End of Frame Trailer Connections and Tractor Protection Valves may not meet the standard trailer brake release timing requirements by 0.5 seconds. A delay in the trailer brake release may create momentary instability to the trailer and increase the risk of a crash.
23KWJ2023-11-10. Service bulletin. Safety Recall Interim Notification Certain T280/T380/T480 chassis built with 2.1m Medium Duty End of Frame Trailer Connections may not meet the standard trailer brake release timing requirements by 0.5 seconds. A delay in the trailer brake release can create instability to the trailer and increase the risk of a crash. Parts and repair procedures are not yet available. This bulletin will be updated when a repair path is determined.
23KWB2023-06-03. Service bulletin. Parts and repair procedures are now available. Kenworth has determined that a safety defect exists in certain Model Year 2021-2024 T280, T380, and T480 chassis with air brakes. The brake pedal plunger which connects the brake pedal to the brake valve may dislodge after the pedal is fully depressed, and rapidly released (side slip foot brake release). If the plunger in the brake pedal assembly dislodges, the driver may be unable to apply the service brakes, which may increase the risk of a crash.

A bulletin is the manufacturer's note to its dealers. It is not part of this recall.

Check one vehicle officially

Contains information licensed under the Open Government Licence – Canada.