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PORTLAND, Ore. – Paccar announced it was recalling some 1,416 2016-2021 Kenworth T680 heavy duty trucks equipped with a 2.1m Cab and a WABCO brake system.
According to the National Highway Traffic Safety Administration’s (NHTSA) Part 573 Safety Recall Report 20V-593 certain trucks with WABCO 6S/6M ABS brake systems and drum brakes were manufactured with a standard, rear brake, ABS modulator valve instead of a quick release, rear brake, ABS modulator valve. This may cause the vehicles to exceed service brake release timing requirement Federal Motor Vehicle Safety Standard (FMVSS) number 121, “Air Brake Systems.”
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The safety issue according to the NHTSA report: “a noncompliance with the service brake release timing requirement may increase the stopping distance of the vehicle and thereby increase the risk of a crash.”
Owners will be notified beginning Nov. 25th about the recall and instructed to bring the trucks to a Kenworth dealer which will replace the standard, rear brake, ABS modulator valves with quick release, rear brake, ABS modulator valves free of charge.
This is not the first recall related to FMVSS number 121. In April, Paccar recalled more than 450,000 Kenworth and Peterbilt trucks, including T680s, for an issue with the ABS warning light. A similar recall was issued in June 2018.