Window Indexing

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.

The window indexing feature is used to lower the driver and passenger power windows approximately 4 mm when the door is opened. This is necessary to allow the top edge of the window to clear the window weatherstrip. This feature will also raise the window to the fully seated position once the door is closed

For vehicles that may be exposed to icy conditions, the body control module will detect when the window will not index due to ice accumulation, when this occurs, the body control module will command the affected window to perform the index function three more times to free the window to allow normal indexing functions.

The window switch monitors the status of the door ajar switch, when the window switch detects that the door is open, the window switch will command the window motor to lower the window.

The window switch monitors the status of the door ajar switch, when the window switch detects that the door is closed, the window switch will command the window motor to fully close the window.