Electronic Park Brake System (EPB)
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. 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. Perform the Diagnostic System Check - Vehicle before using the symptom tables in order to verify that all of the following are true:
- There are no DTCs set.
- The control modules can communicate via the serial data link.
Visual/Physical Inspection
- Inspect for aftermarket devices which could affect the operation of the EPB. Refer to Checking Aftermarket Accessories .
- Inspect the easily accessible or visible system components, for obvious damage or conditions, which could cause the symptom.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom: