NHTSA vehicle safety data
2020 Kenworth T170 Recalls & Complaints
The 2020 Kenworth T170 has 1 NHTSA recall campaign and 1 owner complaint on file as of November 3, 2026. Recall repairs are usually free at an authorized Kenworth dealer.
NHTSA recall and complaint data for the 2020 Kenworth T170. Recall data is refreshed daily from NHTSA.
2020 Kenworth T170 owner complaints
Owners have filed 1 complaint with NHTSA about the 2020 Kenworth T170, describing incidents dated September 1, 2020.
Most-cited components
- Service Brakes 1 complaint
- Steering 1 complaint
- Unknown or Other 1 complaint
Newest complaints
ODI #11426796 · Filed
The vehicle drifts to the right and will not track in its lane. In addition there is a hard pull to the right upon hard braking. There is also front end vibration. It has been taken to the factory authorized facility a number of times and has been in the shop for more than 3 months in the last…
Driver not Warned when ABS Offline/FMVSS 121, 136
NHTSA #20V199000 · Electronic Stability Control (ESC) · NHTSA notice
Reported April 6, 2020 · PACCAR Incorporated
Potentially affected: 460,515 vehicles
Repair completion: 33.98% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Manufacturer campaign 20pbc AND 20KWB · Owners notified May 26, 2020
Defect description
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."
Safety consequence
If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
Manufacturer remedy
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.
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.
Other Kenworth T170 model years
Check your 2020 Kenworth T170 VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Kenworth T170 at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
Check a Kenworth VIN