The defect
PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T370 long wheelbase vehicles with larger rear axle spacing. The vehicles may be missing a second R12 relay valve, causing increased brake activation timing. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."
The risk
Increased brake activation timing may lengthen vehicle stopping distance, increasing the risk of a crash.
The remedy
PACCAR will notify owners, and Kenworth dealers will install a second R12 relay valve, free of charge. PACCAR issued owners an interim notification on April 14, 2020. The recall began May 6, 2020. Owners may contact Kenworth customer service at 1-425-828-5888. PACCAR's number for this recall is 20KWA.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Kenworth T370 | 2020 |
Components: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Kenworth T370 | 2020 | 0 | 6 |
Other service brakes, hydraulic recalls in 2020
44 of the 782 recall campaigns reported to NHTSA in 2020 concerned the service brakes, hydraulic; PACCAR Incorporated filed 154 campaigns in all.
| 20V808000 22 Dec 2020 | General Motors, LLC |
| 20V806000 21 Dec 2020 | Daimler Trucks North America, LLC |
| 20V802000 21 Dec 2020 | Daimler Vans USA, LLC |
| 20V807000 21 Dec 2020 | Daimler Trucks North America, LLC |
| 20V786000 16 Dec 2020 | Volkswagen Group of America, Inc. |
| 20V782000 15 Dec 2020 | Volvo Trucks North America |
| 20V778000 11 Dec 2020 | Yamaha Motor Corporation, USA |
| 20V748000 1 Dec 2020 | Hyundai Motor America |
NHTSA recalls (public domain) · all recalls of 2020