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April 17, 2020 Service bulletin

Service Bulletin for Lengthening the Backup Light Harness

Freightliner technical service bulletin SB54-327 for 2010-2020 Freightliner Cascadia, 2010-2020 Freightliner Columbia and 2010-2020 Freightliner Business Class M2 and others.

Bulletin number
SB54-327
Component
Back over prevention
Summary
Service Bulletin for Lengthening the Backup Light Harness. Though the backup light harness is long enough to connect to the backup light switch, it may be short enough that the wire seals in the connector can be stressed. Moisture entering through the seals can cause corrosion, resulting in a bad connection and/or failure of the switch. As a result, backup lights and, if equipped, the backup alarm, may not function when the vehicle is shifted into reverse.

Owners of these vehicles have filed 32 complaints in the driver assistance category.

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