Diagnostic Aids

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

The loss of the express up and express down functions for the driver, passenger and rear windows may have occurred for the following reasons:

The battery was disconnected
The battery was replaced
A door wiring harness was disconnected
A window motor was disconnected
Excessive or repeated UP and DOWN window switch use

The window motors will need to be normalized in order to restore the express functions, refer to Window Motor Programming - Express Function for the proper procedure.