Circuit/System Verification
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
- Verify DTC P0621 is not set.
- If DTC P0621 is set
Refer to DTC P0621
- If DTC P0621 is not set
- If DTC P0621 is set
- Perform the Battery Inspection/Test .