PACCAR is recalling approximately 1,416 model-year 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."
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 is expected to begin Nov. 25, 2020. PACCAR's number for this recall is 20KWD.
Owners may contact PACCAR customer service at (425) 828-5888.