The Recall Desk
HighNHTSA·24V915000·Announced 2024-09-12

Kenworth and Peterbilt Trucks Recalled for Faulty Electronic Control Units

PACCAR is recalling 2021-2025 Kenworth and Peterbilt commercial trucks with defective electronic control units that may fail due to electrical interference, potentially disabling critical safety systems including ABS, traction control, and electronic stability control.

What this means for you

Real risk of harm even if no illness or injury has been reported yet. Stop using the product and follow the agency's guidance.

Our severity reasoning: Structural defect affecting critical safety systems with potential for crash, but no reported injuries or fatalities. Per the rubric, potential hazards without confirmed incidents score at most 3 (High).

Plain-English summary

PACCAR Incorporated is recalling certain 2021-2025 Kenworth and Peterbilt commercial trucks equipped with Bendix EC80 Advanced Electronic Control Units (ECU).

The ECU may malfunction due to electrical noise and weak signals in the vehicle's power line communication system. This can cause the ECU to incorrectly process commands or stop functioning entirely. As a result, critical safety systems that depend on the ECU—including automatic traction control, antilock brakes (ABS), electronic stability control, active cruise control, and collision mitigation systems—may not function properly or may fail completely, increasing the risk of a crash.

Owners who received notification letters in February 2025 should contact their dealer to schedule free ECU software reprogramming. Kenworth customer service can be reached at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. The National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or nhtsa.gov provides additional information.

The recalled product

Product
2021 KENWORTH W900B
Brand
KENWORTH
Manufacturer
PACCAR Incorporated
Category
Vehicle — Commercial Truck
Hazard
  • ecu-malfunction
  • brake-control-failure
  • stability-control-failure
  • crash-risk
Affected units
220,764

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Model numbers (20)

  • W900B
  • W990
  • T880
  • T680
  • C500B
  • T800B
  • 548
  • T380
  • T370
  • T480
  • 567
  • T440
  • 520
  • 365
  • T280
  • 537
  • 348
  • 337
  • 389
  • 367

Distribution

Distributed nationwide across the United States.

Related recalls

Same brand · KENWORTH

Same category