Kenworth T170, Kenworth T270, Kenworth T370, Kenworth T660, Kenworth T680, Kenworth T800, model years 2008 to 2020. Filed by PACCAR Incorporated and reported to NHTSA on 6 April 2020. 460,515 vehicles potentially affected.
What the notice says 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) …
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Paccar's own number for this recall: 20PBC AND 20KWB. That is the number on the owner letter and on the dealer paperwork. 20V199 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 20V199 cover?
- Kenworth T170, Kenworth T270, Kenworth T370, Kenworth T660, Kenworth T680, Kenworth T800, Kenworth T880, Kenworth W900, model years 2008-2020.
- What is wrong with them?
- 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.
- What can happen if it is not put right?
- If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
- Is there a fix yet?
- Not yet, on the wording NHTSA publishes today. 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.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Paccar calls this recall 20PBC AND 20KWB, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.”
affected
in the notice
caught
| Campaign | 20V199 |
|---|---|
| Filed by | PACCAR Incorporated |
| System at fault | Electronic Stability Control (ESC) |
| Reported to NHTSA | 6 April 2020 |
| Model years | 2008-2020 |
| Vehicles named | KENWORTH T170, KENWORTH T270, KENWORTH T370, KENWORTH T660, KENWORTH T680, KENWORTH T800, KENWORTH T880, KENWORTH W900, PETERBILT 330, PETERBILT 335, PETERBILT 337, PETERBILT 340, PETERBILT 348, PETERBILT 365 |
What the notice says today
The consequence
If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
The 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.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 84 notices in the record whose component field names electronic stability control (esc). Across that group the median wait before owners were written to was 46 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
- Kenworth T170 recalls: 8 US campaigns
- Kenworth T270 recalls: 24 US campaigns
- Kenworth T370 recalls: 31 US campaigns
- Kenworth T660 recalls: 40 US campaigns
- Kenworth T680 recalls: 59 US campaigns
- Kenworth T800 recalls: 50 US campaigns
- Kenworth T880 recalls: 54 US campaigns
- Kenworth W900 recalls: 45 US campaigns
- Peterbilt 330 recalls: 13 US campaigns
- Peterbilt 335 recalls: 3 US campaigns
- Peterbilt 337 recalls: 22 US campaigns
- Peterbilt 340 recalls: 3 US campaigns
- Peterbilt 348 recalls: 26 US campaigns
- Peterbilt 365 recalls: 32 US campaigns
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 20V199, wording as read on 16 September 2026. https://carsmultiverse.com/recall/20v199/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Paccar notices we hold
- 26V544: 2027 Peterbilt 567, 579, 589 and 2027 Kenworth T680, T880, and W990
- 26V485: 2027 Peterbilt and Kenworth
- 26V442: 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors
- 26V022: 2026 Kenworth L770 and 2024-2026 Peterbilt 520
- 25V795: 2026 Peterbilt 567 and 589 trucks
- 25V569: 2024-2026 Kenworth T680, T880, and W990 trucks
- 25V353: 2024 Peterbilt 367, 2026 Peterbilt 548, 589, and 2024-2026 Peterbilt 567 trucks
- 25V182: 2021-2026 Peterbilt 220, 2022-2026 Kenworth K370, and 2020-2026 K270 Medium-Duty Battery Electric
All 138 Paccar campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 20V199 on 23 August 2026, they were:
- Defect summary
adb86676 - Consequence
b9285de5 - Remedy
3fa0bc23
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 20V199 · how the whole register is watched
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