NHTSA Recall 21V181000: Software (engine and engine cooling) and engine
PACCAR Incorporated reported this safety recall to NHTSA on , covering an estimated 1 vehicles. It affects 2021 Peterbilt 536.
| NHTSA campaign | 21V181000 |
|---|---|
| Manufacturer campaign | 21PBC |
| Components | ENGINE AND ENGINE COOLING › ENGINE › ENGINE CONTROL MODULE (ECU/ECM) › SOFTWARE; ENGINE |
| Report received | March 16, 2021 |
| Owner notification | March 3, 2021 |
| Initiated by | Manufacturer |
Defect
PACCAR Incorporated (PACCAR) is recalling one 2021 Peterbilt 536 vehicle equipped with a Cummins Westport Inc. B6.7N engine that has certain engine control module calibrations. The engine control module software may be calibrated incorrectly, causing the engine to not limit engine speed or torque as intended for certain safety-related functions such as vehicle braking, traction and stability control, speed control, or collision avoidance.
Safety risk
If safety-related functions such as vehicle braking, stability, speed, and collision avoidance do not function properly, it can increase the risk of a crash.
Remedy
PACCAR owns the vehicle affected, and it was repaired as of March 3, 2021. Owners may contact PACCAR customer service at 1-940-591-4220. PACCAR's number for this recall is 21PBC.
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 covered by recall 21V181000
| Make and model | Model years |
|---|---|
| Peterbilt 536 | 2021 |
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.