Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard.
If the light next to the OnStar buttons is red, the system may not be functioning properly. Push 
and request a vehicle diagnostic check. If the light appears clear (no light appears), your OnStar subscription has expired and all services have been deactivated.
Push to confirm that the OnStar equipment is active.
See also:
Recalling Button Memory
Positions
To recall the manually saved Button
Memory positions, press and hold
“1” or “2.” The driver seat and
outside mirrors move to the
positions stored to those buttons
when pressed. Relea ...
Brake Fluid
The brake master cylinder and, on manual transmission vehicles, the clutch hydraulic
system use the same reservoir. See Engine Compartment Overview for the location
of the reservoir. The r ...
Loss of Control
Let us review what driving experts say about what happens when the three control systems—brakes, steering, and acceleration—do not have enough friction where the tires meet the road to do what the ...