See also:

Storing and Deleting Phone Numbers
The system can store up to 30 phone numbers as name tags in the Hands-Free Directory that is shared between the Bluetooth and OnStar systems. The following commands are used to delete and s ...

Horn
Press on the steering wheel pad to sound the horn. ...

Adding Washer Fluid
Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview  for reservoir location. Notice When using concentrated washer fluid, ...