- Vehicles
- 460,515
- Built between
- Not published
- Models
- 23
- Recall type
- Vehicle
- Initiated by
- Manufacturer
- Owners notified
- 26 May 2020
- Repaired
- 27%
- Unrepaired
- 315,764
Does this affect my vehicle?
The manufacturer did not publish a build-date range for this recall, so the model and year list below is the only way to tell whether your vehicle is covered.
- 2008-2020 Kenworth T170
- 2008-2020 Kenworth T270
- 2008-2020 Kenworth T370
- 2008-2019 Kenworth T660
- 2011-2020 Kenworth T680
- 2008-2020 Kenworth T800
- 2011-2020 Kenworth T880
- 2008-2020 Kenworth W900
- 2008-2019 Peterbilt 330
- 2008-2011 Peterbilt 335
- 2008-2019 Peterbilt 337
- 2008-2011 Peterbilt 340
- 2008-2019 Peterbilt 348
- 2008-2019 Peterbilt 365
- 2008-2019 Peterbilt 367
- 2008-2019 Peterbilt 384
- 2008-2019 Peterbilt 386
- 2008-2016 Peterbilt 387
- 2008-2019 Peterbilt 388
- 2008-2019 Peterbilt 389
- 2008-2019 Peterbilt 567
- 2008-2019 Peterbilt 579
- 2008-2019 Peterbilt 587
Repair progress
315,764 of 460,515 vehicles in this recall had still not been repaired as of Q1 2022.
27% repaired — 125,765 of 460,515 reported
- Owners not reachable
- 18,986
Manufacturers file these figures with NHTSA each quarter. Vehicles the manufacturer could not trace, or that have been scrapped or exported, are counted separately and are not included in the unrepaired figure.
What the defect is
PACCAR Incorporated (PACCAR) is recalling certain 2008-2019 Peterbilt 330, 335, 337, 340, 348, 365, 367, 384, 386, 387, 388, 389, 567, 579 and 587 vehicles and 2008-2020 Kenworth T170, T270, T370, T660, T680, T800, T880, and W900 vehicles equipped with NAMUX Software. In the event that the Anti-lock Brake System (ABS) loses battery and/or ignition power to the controller, the dash warning light for the ABS may not illuminate to warn the driver of the loss of ABS. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems," and 136, "Electronic Stability Control System on Heavy Vehicles."
What could happen
If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
What gets fixed
PACCAR will notify owners, and dealers will update the NAMUX software within the cab control module, free of charge. PACCAR issued owners an interim notification on June 4, 2020. The recall began May 26, 2020.
Timeline
- Recall reported to NHTSA6 April 2020
- Owners notified26 May 2020
- Latest repair reportQ1 2022 — 27% repaired
Your rights
A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.
That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 6 April 2020.
To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.
Manufacturer contact
Owners may contact Kenworth customer service at 1-425-828-5888 or Peterbilt customer service at 1-940-591-4220. PACCAR's number for this recall is 20pbc AND 20KWB.
Official source
- Manufacturer's recall number
- 20pbc AND 20KWB
- Recalling manufacturer
- PACCAR Incorporated
- Safety standard
- FMVSS 121
- Recall initiated by
- MFR
Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.
Additional 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.
Check your own vehicle
This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.
A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.