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February 1, 2015 Service bulletin

Allison transmission: on some trucks, the push button shift selector (PBSS) skips oil level reading and...

Kenworth technical service bulletin TT-7484-EN for 2016 Kenworth T680, 2016 Peterbilt 579 and 2016 Kenworth T880 and others.

Bulletin number
TT-7484-EN
Component
Power train: automatic transmission
Summary
Allison transmission: on some trucks, the push button shift selector (pbss) skips oil level reading and goes directly to prognostics and could be missing wire 116 on bulkhead other side. Models t680, t880, 579, 567.

Owners of these vehicles have filed 2 complaints in the transmission category.

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