Electronic stability control (esc); service brakes, air: antilock: abs warning light (Peterbilt and Kenworth)
Vehicle recall 20V-199. NHTSA received PACCAR Incorporated’s report on Apr 6, 2020.
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The short answer
NHTSA received PACCAR Incorporated’s report on Apr 6, 2020. Copied from NHTSA on Oct 28, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
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.”
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
- NHTSA’s part: Electronic stability control (esc).
- NHTSA’s part: Service brakes, air: antilock: abs warning light.
What should you do?
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. 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.
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
- How to reach the firm: 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 a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 460,515 vehicles potentially involved, across everything this recall names.
Each model year opens its own page: every recall naming it, its owner complaints and its crash ratings.
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
- Peterbilt 36520192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 36720192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 38420192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 38620192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 38720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 38820192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 38920192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 56720192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 57920192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 58720192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Kenworth T680202020192018201720162015and 2011, 2012, 2013 and 2014, before the model years listed here
- Kenworth T66020192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Kenworth T370202020192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Kenworth T270202020192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Kenworth T170202020192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Kenworth T880202020192018201720162015and 2011, 2012, 2013 and 2014, before the model years listed here
- Kenworth W900202020192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Kenworth T800202020192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 34820192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 33020192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 335and 2008, 2009, 2010 and 2011, before the model years listed here
- Peterbilt 33720192018201720162015and 2008, 2009, 2010, 2011, 2012, 2013 and 2014, before the model years listed here
- Peterbilt 340and 2008, 2009, 2010 and 2011, before the model years listed here
Who is recalling it?
- Made by PACCAR Incorporated.
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt. Owners’ complaints are counted on each vehicle’s page.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).
Released Oct 28, 2026 and checked Oct 28, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 28, 2026.