Symptoms - Cruise Control: Notes

WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The following steps must be completed before using the symptom tables.

Before using the symptom diagnostic table, perform the Diagnostic System Check - Vehicle in order to verify the following conditions:
- There are no DTCs set.
- The module can communicate via the serial data.
Review the system operation in order to understand the system functions. Refer to Cruise Control Description and Operation (Without Adaptive Cruise Control) or Cruise Control Description and Operation (With Adaptive Cruise Control) .