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NHTSA recall 20V593000

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 byNHTSA (United States)
Campaign number20V593000
Manufacturer's number20KWD
ManufacturerPACCAR Incorporated
Reported2020-09-28
Owners notified2020-11-30
ComponentSERVICE BRAKES, AIR:ANTILOCK
Units potentially affected1416
Part numbers4721950520
Remedy progress the manufacturer reported
ReportAnnual report 3, for 2024 quarter 4 to 2025 quarter 3
Filed with NHTSA2025-10-30
Vehicles in the campaign1416
Reported remedied1127 (79%)
Reported unreachable0
Reported removed0

These are the manufacturer's totals for the whole campaign at the end of 2025 quarter 3, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026-10-19.

What is wrong

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."

What can happen

Longer than expected service-brake release timing may lengthen vehicle stopping distance, increasing the risk of a crash.

The 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.

Vehicles this campaign lists
2016 KENWORTH T680
2017 KENWORTH T680
2018 KENWORTH T680
2019 KENWORTH T680
2020 KENWORTH T680
2021 KENWORTH T680

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.

Check one vehicle officially