PIC6048H
Service Bulletin Details
Public Details for: PIC6048H
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
Models from 2018
| 2018 BUICK ENVISION |
| 2018 BUICK LACROSSE |
| 2018 CADILLAC ATS |
| 2018 CADILLAC CT6 |
| 2018 CADILLAC CTS |
| 2018 CADILLAC XT5 |
| 2018 CADILLAC XTS |
| 2018 CHEVROLET EQUINOX |
| 2018 GMC ACADIA |
| 2018 GMC TERRAIN |
Models from 2017
| 2017 BUICK ENVISION |
| 2017 BUICK LACROSSE |
| 2017 CADILLAC ATS |
| 2017 CADILLAC CT6 |
| 2017 CADILLAC CTS |
| 2017 CADILLAC XT5 |
| 2017 CADILLAC XTS |
| 2017 GMC ACADIA |
Models from 2016
| 2016 BUICK ENVISION |
| 2016 CADILLAC ATS |
| 2016 CADILLAC CT6 |
| 2016 CADILLAC CTS |
| 2016 CADILLAC XTS |
Models from 2015
| 2015 CADILLAC ATS |
| 2015 CADILLAC CTS |
| 2015 CADILLAC XTS |
Bulletin No.: PIC6048H Published date: 10/13/2017 Preliminary Information PIC6048H Normal Operation Of Haptic Seat During Lane Keep Assist Event Models Brand: Model: Model Years: VIN: from to Engine: Transmissions: Cadillac ATS 2015 - 2018 ALL ALL ALL ALL Cadillac CTS Sedan VIN A 2015 - 2018 ALL ALL ALL ALL Cadillac XTS 2015 - 2018 ALL ALL ALL ALL Cadillac CT6 2016 - 2018 ALL ALL ALL ALL Cadillac XT5 2017 - 2018 ALL ALL ALL ALL Buick Lacrosse 2017 - 2018 ALL ALL ALL ALL Buick Envision 2016 - 2018 ALL ALL ALL ALL GMC Acadia VIN N 2017 - 2018 ALL ALL ALL ALL GMC Terrain 2018 ALL ALL ALL ALL Chevrolet Equinox 2018 ALL ALL ALL ALL Note * With Lane Keep Assist (RPO UHX)* Supersession Statement This PI was revised to update the Model's. Please discard copies of PIC6048G. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition / Concern A customer may comment on the operation of their haptic seat during a Lane Keep Assist (LKA) event. Recommendations / Instructions Lane Keep Assist (LKA) works differently than Lane Departure Warning (LDW) in that it has two driver interventions: Stage 1 and Stage 2 Stage 1 – LKA 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 haptics. Stage 1 occurs when approaching the lane marking. Stage 2 – LKA icon is flashing amber, Forward Camera Module is actively commanding torque to Electronic Power Steering. This will also be accompanied with LDW chimes / haptics seat feedback (based on the setting chosen in the CUE vehicle settings). Stage 2 occurs when vehicle has crossed lane marking by (40 cm) or (15.75 in) There are a few reasons for no chimes or haptics when crossing a well defined painted center line on the road. If LKA is overridden / suppressed, at any point, there will be no stage 2 alert. IMPORTANT Lane Keep Assist can be overridden for any of the following reasons: 1) 2) 3) 4) 5) High High High High Turn steering / rapid change in steering position braking / aggressive brake apply / rapid acceleration driver applied torque to steering wheel signal activation Most commonly, the driver applies more torque to the steering wheel to overcome the Lane Keep Assist. This would lead to the LKA fading out, and no Stage 2. NOTE: For Lane Keep Assist to enable, lane markings need to be of good quality AND the curvature of the road / lane markings need to be less than a certain threshold. Please see the vehicle's Owner's Manual for more information on Lane Keep Assist. Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. © 2016 General Motors. All Rights Reserved.