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July 6, 2017 Service bulletin

This Preliminary Information communicates to thetechnician that some customers may comment on the...

GMC technical service bulletin PIC6048G for 2017 GMC Acadia, 2015-2017 Cadillac CTS and 2017 Buick Lacrosse and others.

Bulletin number
PIC6048G
Component
Lane departure
Summary
This Preliminary Information communicates to thetechnician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from the steering wheel. No Chimes or haptic in the seat. Lane Keep Assist icon is flashing amber; Forward Camera Module is actively commanding torque to Electronic Power Steering. This will also be accompanied with Lane Departure Warning chimes and haptic in the seat feedback based on the setting chosen in the vehicle settings. This will take place when the vehicle has crossed lane marking by (40 cm) or (15.75 in).

Owners of these vehicles have filed 70 complaints in the driver assistance category.

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