Vehicle Will Not Hold Set Cruise Control Speed In Enhanced Cruise Control Mode (21-NA-035)
Publication date: 2021-02-11Reference number: 21-NA-035
VEHICLE WILL NOT HOLD SET CRUISE CONTROL SPEED IN ENHANCED CRUISE CONTROL MODE
TECHNICAL SERVICE BULLETIN
Reference Number(s): 21-NA-035, Date of Issue:
Feb 11, 2021
SERVICE INFORMATION
| Brand: | Model: | Model Year: | VIN: | Engine: | Transmission: | ||
|---|---|---|---|---|---|---|---|
| from | to | from | to | ||||
| Buick | Enclave | 2018 | 2021 | - | - | - | - |
| Envision | 2019 | 2019 | |||||
| LaCrosse | 2020 | 2021 | |||||
| Verano | 2020 | 2020 | |||||
| Cadillac | ATS | 2018 | 2018 | ||||
| CT6 | 2018 | 2021 | |||||
| CTS | 2017 | 2018 | |||||
| Escalade | 2018 | 2019 | |||||
| XT4 | 2019 | 2020 | |||||
| XT5 | 2018 | 2020 | |||||
| XT6 | 2020 | 2020 | |||||
| XTS | 2018 | 2018 | |||||
| Chevrolet | Blazer | 2019 | 2021 | ||||
| Malibu | 2019 | 2021 | |||||
| Traverse | 2018 | 2019 | |||||
| Volt | 2019 | 2019 | |||||
| GMC | Acadia | 2018 | 2021 | ||||
| Holden | Acadia | 2019 | 2019 | ||||
| Involved Region or Country | North America, Europe, Uzbekistan, Russia, Middle East, Israel, Palestine, Chile, Colombia, Ecuador, Peru, Japan, Korea, China, Australia/New Zealand, Africa |
| Additional Options (RPOs) | Equipped with Driver Assist Package (RPO UGN) |
| Condition | Some customers may comment on the vehicle being unable to hold the set cruise control speed. Customers may also feel a slight braking sensation when this occurs. This only occurs in Enhanced Cruise Control mode and NOT Adaptive Cruise Control. |
| Cause | The cause of the condition may be that, whether you have multiple vehicles ahead or not, switching from Adaptive Cruise to Enhanced Cruise may cause the customer's vehicle to think the targets are still ahead. |
| Correction | New calibrations are coming at a later date. Please communicate to the costumer to only switch from Adaptive Cruise Control to Enhanced Cruise Control when there are no vehicles ahead of the vehicle. Please share this information with the customer, including a copy of this message. |
SERVICE INFORMATION
| Version | 1 |
| Modified | Released February 11, 2021 |