21KWH – Methane Detection System May Fail – 2016-2022 Kenworth

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December 29, 2021 NHTSA CAMPAIGN NUMBER: 21V00N000

Methane Detection System May Fail

The operator may be unaware of a system malfunction or the presence of excessive methane levels, increasing the risk of injury or fire.

 

NHTSA Campaign Number: 21V00N

Manufacturer PACCAR Incorporated

Components ELECTRICAL SYSTEM

Potential Number of Units Affected 1,107

 

Summary

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.

 

Remedy

Dealers will re-wire the warning alarm, free of charge. Owner notification letters are expected to be mailed February 26, 2022. The remedy is expected by md-November 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.

 

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.nhtsa.gov.

 


Chronology :

11-11-2021: Peterbilt Safety and Compliance reviewed a natural gas truck and found the warning lamp and the warning alarm did not indicate constant warning sound and light when the methane detection system power was lost. Investigation opened.

11-12-2021: 50 trucks are on hold at the plants (48 PB and two (2) KW chassis) and being reworked for creating a redundant power source for warning lamp and buzzer. The field trucks may be reworked similar to the plant rework.

11-19-2021: AELs (KW: 00301N5, PB: 031AHMD) are created as an additional method to identify future trucks with methane detection that may need an alternate design called out.

11-24-2021: Chillicothe confirms rework procedure effectively resolved the concern. Fuse B6 was pulled to simulate a loss of system power, causing the warning lamp to illuminate and alarm to sound.

12-07-2021: Affected population of vehicles in the field defined.

12-09-2021: Warranty Claims checked for this system and found none.

12-22-2021: Safety committee meeting held. The committee agrees that a defect relating to motor vehicle safety exists.

 


33 Affected Products

Vehicles

MAKE MODEL YEAR
KENWORTH T270 2020
KENWORTH T280 2021
KENWORTH T440 2018-2020
KENWORTH T680 2016-2022
KENWORTH T880 2017-2021
PETERBILT 536 2021-2022
PETERBILT 567 2016-2022
PETERBILT 579 2016-2022

 


7 Associated Documents

Safety Bulletin

RCSB-21V00N-4751.pdf 341.25KB

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Recall Acknowledgement

RCAK-21V00N-3222.pdf 645.336KB

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Defect Notice 573 Report

RCLRPT-21V00N-1612.PDF 216.466KB

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ISSUED Interim Owner Notification Letter(Part 577)

RIONL-21V00N-8498.pdf 234.223KB

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Safety Bulletin

RCSB-21V00N-9869.pdf 7290.244KB

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Recall 573 Report- 08/24/2022

RCLRPT-21V00N-5452.PDF 216.445KB

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Recall 573 Report – 09/19/2022

RCLRPT-21V00N-2011.PDF 244.921KB

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=21V00N&docType=RCL

 


 

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