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Kenworth T680 Recall 20V593: Trucks May Take Longer to Release Brakes, Raising Crash Risk

NHTSA campaign 20V593, reported September 28, 2020, 1,416 vehicles potentially affected.

What this recall means for you

Certain 2016-2021 Kenworth T680 trucks with a 2.1m cab and WABCO 6S/6M antilock brake system with drum brakes were built with a standard rear-brake ABS modulator valve instead of a quick release valve. This means the service brakes may take longer than intended to release, and the trucks do not meet Federal Motor Vehicle Safety Standard 121 for air brake systems.

The longer release timing can lengthen stopping distance, which increases the risk of a crash. Owners should take this recall seriously and arrange the repair promptly.

PACCAR will notify owners, and authorized dealers will replace the standard rear-brake ABS modulator valve with a quick release valve at no cost to you. The recall began November 30, 2020. You can contact PACCAR customer service at 1-425-828-5888 (recall number 20KWD), and you can check your vehicle identification number for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 20V593PACCAR Incorporated
Component
SERVICE BRAKES, AIR:ANTILOCK
Problem
PACCAR Incorporated (PACCAR) is recalling certain 2016-2021 Kenworth T680 trucks equipped with a 2.1m Cab and WABCO 6S/6M ABS brake system with drum brakes. The brake systems were manufactured with a standard rear-brake ABS modulator valve instead of a quick release valve, which may exceed the intended service-brake release timing. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Risk
Longer than expected service-brake release timing may lengthen vehicle stopping distance, increasing the risk of a crash.
Remedy
PACCAR will notify owners, and dealers will replace the standard rear-brake, ABS modulator valve with a quick release valve, free of charge. The recall began November 30, 2020. Owners may contact PACCAR customer service at 1-425-828-5888. PACCAR's number for this recall is 20KWD.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Affected vehicles

Kenworth T680201620172018201920202021