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January 7, 2022 Service bulletin

Interim Safety Recall – Methane detection system will not warn the operator if the system loses power

Peterbilt technical service bulletin 21PBN for 2016-2022 Peterbilt 579, 2016-2022 Peterbilt 567 and 2020-2022 Peterbilt 536.

Bulletin number
21PBN
Component
Electrical system
Summary
Interim Safety Recall – Methane detection system will not warn the operator if the system loses power. The driver could be unaware of an issue with the methane detection system or excessive methane present, increasing the risk of a fire, crash and/or personal injury. The repair procedure will be added when it is available.

Owners of these vehicles have filed 12 complaints in the electrical category.

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