See also:

Adjusting the Equalizer (EQ)
If the radio has this feature, the EQ can be adjusted between talk and manual. To choose an EQ setting: 1. Press the TUNE/TONE knob. 2. Select EQ. 3. Select Talk or Manual. 4. Press the Back ...

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 ...

Parking Brake
The vehicle has an Electric Parking Brake (EPB). The switch for the EPB is in the center console. The EPB can always be activated, even if the ignition is off. To avoid draining the battery, ...