Actions Taken When DTC Sets

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.

C056E 41 or C056E 5A

The parking brake is disabled.
A message and/or a warning indicator may be displayed.

C056E 42

The parking brake functionality is degraded or disabled.
A message and/or a warning indicator may be displayed.

C056E 47 or C056E 71

The parking brake will function normally.