Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

The EBCM turns OFF the 5-volt reference circuit, until the ignition is cycled.
The antilock brake system (ABS) indicator illuminates.
The vehicle dynamics caution (VDC) indicator illuminates.
The driver information center (DIC) displays Service Stabilitrak.