See also:

Chime Volume
This allows the selection of the chime volume level. Press the MENU/SELECT knob when Chime Volume is highlighted. Turn the knob to select Normal or High. Press the knob to confirm and go back t ...

Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants Maintenance Replacement Parts Replacement parts identified below by name, part number, or specification can be obtained from your dealer. ...

Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfer ...