NHTSA recall 21V906000
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.
| Published by | NHTSA (United States) |
|---|---|
| Campaign number | 21V906000 |
| Manufacturer's number | 21KWG and 21PBM |
| Manufacturer | PACCAR Incorporated |
| Reported | 2021-11-19 |
| Owners notified | 2022-01-03 |
| Component | ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, AIR |
| Units potentially affected | 908 |
| Part numbers | Not Applicable |
| Report | Annual report 2, for 2025 quarter 1 to 2025 quarter 4 |
|---|---|
| Filed with NHTSA | 2026-01-22 |
| Vehicles in the campaign | 908 |
| Reported remedied | 506 (55%) |
| Reported unreachable | 7 |
| Reported removed | 0 |
These are the manufacturer's totals for the whole campaign at the end of 2025 quarter 4, 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 2019-2022 Kenworth T880, W990, Peterbilt 567, 579, 389, and 2022 Peterbilt 536, 537 wrecker and auto hauler vehicles. The work brake (winch brake) may unintentionally disengage the service brakes during winching operations, causing the vehicle to roll.
What can happen
Unintended vehicle movement can increase the risk of a crash or injury.
The remedy
Dealers will update the vehicle software, free of charge. Owner notification letters were mailed on January 3, 2022. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth); or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWG and 21PBM.
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.nhtsa.gov.
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.
Bulletins for the same vehicles and component
| 32-021 | 2022-05-05. Service bulletin. Model Year 2022 chassis with Cummins X15 engines may have inoperative auto-start systems due to a Cummins software update. Refer to Cummins bulletin TSB210135. |
|---|---|
| 26-037 | 2021-01-06. Service bulletin. Fix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator (LCA) fault codes leading to possible LCA hardware replacement. |
| T010 | 2021-01-06. Service bulletin. Non-Safety Campaign – Vehicles with PACCAR transmissions may experience transmission service lamp activation, no gear engagement from neutral, and/or DTC 511 FMI 7 or 10 is set. Transmission software and shift calibration updates are available to resolve |
| 03-071 | 2020-01-04. Service bulletin. Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer. The issue can be temporarily resolved using any one of the included procedures. |
| 13-049 | 2019-03-18. Service bulletin. Information: Bendix ACOM Software version 6.16.5.0 for diagnostics may introduce an unrecoverable error. Notice to dealers to replace this version with older software version until Bendix introduces new version. |
| TIB34-073 | 2019-03-11. Service bulletin. Fix-As-Fail: Vehicles equipped with VECU may activate frequently when LVD is enabled. Resolution is to update the CECU software. |
A bulletin is the manufacturer's note to its dealers. It is not part of this recall.