PIC6123E
Service Bulletin Details
Public Details for: PIC6123E
This preliminary information communication provides information to the technician for the adaptive cruise control or lane keep assist unavailable message in the driver?S information center after the vehicle has been parked in direct sunligh
- 2019 - 2018 - 2017 - 2016 - 2015 - 2014 - 2013 -
Models from 2019
| 2019 CADILLAC ATS |
| 2019 CADILLAC CT6 |
| 2019 CADILLAC CTS |
| 2019 CADILLAC ESCALADE ESV |
| 2019 CADILLAC XT5 |
| 2019 CADILLAC XTS |
| 2019 GMC ACADIA |
Models from 2018
| 2018 CADILLAC ATS |
| 2018 CADILLAC CT6 |
| 2018 CADILLAC CTS |
| 2018 CADILLAC ESCALADE ESV |
| 2018 CADILLAC XT5 |
| 2018 CADILLAC XTS |
| 2018 GMC ACADIA |
Models from 2017
| 2017 CADILLAC ATS |
| 2017 CADILLAC CT6 |
| 2017 CADILLAC CTS |
| 2017 CADILLAC ESCALADE ESV |
| 2017 CADILLAC SRX |
| 2017 CADILLAC XT5 |
| 2017 CADILLAC XTS |
| 2017 GMC ACADIA |
Models from 2016
| 2016 CADILLAC ATS |
| 2016 CADILLAC CT6 |
| 2016 CADILLAC CTS |
| 2016 CADILLAC ESCALADE ESV |
| 2016 CADILLAC SRX |
| 2016 CADILLAC XTS |
Models from 2015
| 2015 CADILLAC ATS |
| 2015 CADILLAC CTS |
| 2015 CADILLAC ESCALADE ESV |
| 2015 CADILLAC SRX |
| 2015 CADILLAC XTS |
Models from 2013
| 2013 CADILLAC ATS |
| 2013 CADILLAC SRX |
| 2013 CADILLAC XTS |
Bulletin No.: PIC6123E Published date: 08/20/2019 Preliminary Information PIC6123E Adaptive Cruise Temporarily Unavailable or Forward Collision System Unavailable Message - Lane Keep Assist (LKA) Inoperative in High Ambient Temperatures Models Brand: Model: Model Years: VIN: from to Engine: Transmissions: Cadillac ATS 2013 - 2019 All ALL ALL ALL Cadillac CTS (VIN A) 2014 - 2019 ALL ALL ALL ALL Cadillac CT6 2016 - 2019 All ALL ALL ALL Cadillac XTS 2013 - 2019 ALL ALL ALL ALL Cadillac XT5 2017 - 2019 ALL ALL ALL ALL Cadillac Escalade Models 2015 - 2019 ALL ALL ALL ALL Cadillac SRX 2013 - 2017 ALL ALL ALL ALL GMC Acadia 2017 - 2019 ALL ALL ALL ALL Supersession Statement This PI was updated Condition/Concern. Please discard PIC6123D. Condition / Concern Some customers may comment that an Adaptive Cruise Temporarily Unavailable message is displayed In the DIC when attempting to use Cruise Control after the vehicle has been parked in direct sunlight in high ambient temperatures. Furthermore it may be noticed that the Lane Keep Assist (LKA) will also be inoperable on startup and the LED indicator on the LKA switch will not be illuminated. If the LKA switch is pressed in this state, the DIC will display Lane Keep Assist Unavailable. If the Cameras internal ECU temperature exceeds 85 degrees C (185 deg. F) the image sensor will shut down. (The internal operating temperature range for the image sensor is -40 deg. C to 85 deg. C. (-40 deg. F to 185 deg. F.)) When this happens the image processor no longer functions and as a result Adaptive Cruise Control and Lane Keep Assist will be unavailable until the temperature falls within the operating range. There are two failure modes based on the ECU temperature, the data seen in GDS will be different depending on which failure mode is present. 1. First stage: Adaptive Cruise Temporarily Unavailable Message LKA does not function Image Sensor in front View Camera Module (FVCM) stops functioning. GDS Data a. Disengage history shows Active Safety Control Module as YES for loss of communication. 2. Second Stage: Adaptive Cruise Temporarily Unavailable Message LKA does not function Image Sensor in front View Camera Module (FVCM) stops functioning. FVCM stops functioning on the bus. GDS Data: a. Disengage history shows Active Safety Control Module as YES for loss of communication. b. Disengage history shows Front View Camera Module as YES for loss of communication. c. U026A sets. Recommendations / Instructions Advise the customer this is Normal Operation in high ambient temperatures with the vehicle parked in direct sunlight. When the temperature of the FVCM drops to within normal operating range during the same drive cycle, the Adaptive Cruise and Lane Keep Assist will return to normal operation. Tips: Avoiding parking in direct sunlight during high ambient temperatures will lessen the chances of this occurring. Driving with the Air Conditioning on will assist in decreasing the cabin/FVCM temperature as quickly as possible. Customer Information Please communicate to the customer this condition is a normal operating characteristic of their vehicle. It will not impact the designed performance or reliability of the vehicle. Please share this information with the customer, including a copy of this message. © 2019 General Motors. All Rights Reserved.