2020 Kenworth T270, 2021 Kenworth T280, 2018–2020 Kenworth T440 and 5 other models Recall: Methane detection system will not function if the system loses power
NHTSA campaign 21V00N000 · Electrical System · filed Dec 29, 2021 · verified Jul 30, 2026
The defect
PACCAR Incorporated (PACCAR) is recalling certain 2016-2022 Peterbilt 567, 579, 2021-2022 Peterbilt 536, 2017-2021 Kenworth T880, 2016-2022 Kenworth T680, 2018-2020 Kenworth T440, 2020 Kenworth T270, and 2021 Kenworth T280 vehicles. The methane detection system will not function if the system loses power.
The risk
The operator may be unaware of a system malfunction or the presence of excessive methane levels, increasing the risk of injury or fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Dealers will re-wire the warning alarm, free of charge. Owner notification letters were mailed December 1, 2022. Owners may contact Peterbilt customer service at 1-940-591-4220, and Kenworth customer service at 1-425-828-5888. PACCAR's numbers for this recall are 21KWH and 21PBN.
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.nhtsa.gov.
Affected vehicles
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Other campaigns involving Kenworth vehicles
Source: NHTSA recall database, campaign 21V00N000 (manufacturer number 21KWH and 21PBN). Data last verified Jul 30, 2026.