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June 3, 2020 Service bulletin

Customer Advisory Letter for ABS ECU Software Update

Freightliner technical service bulletin CALABSECU for 2019-2020 Freightliner Cascadia, 2019-2020 Western Star 4900 and 2019-2020 Western Star 4700 and others.

Bulletin number
CALABSECU
Component
Electronic stability control: automatic (ASC)
Summary
Customer Advisory Letter for ABS ECU Software Update. The Enhanced Stability Control (ESC) function within the ABS module that applies to the vehicles in your possession needs to be updated for the axle spread values. The ESC with the current values functions as it should, but should be updated to ensure proper calibration in the future.

Owners of these vehicles have filed 24 complaints in the driver assistance category.

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