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:
Exterior Lighting
The exterior lamp control is located to the left of the steering column on the
instrument panel.
: Briefly turn to this position
to turn the automatic lamp control off or on again.
AUTO: Turn ...
Driving at Night
Night driving is more dangerous than day driving because
some drivers are likely to be impaired—by alcohol or
drugs, with night vision problems, or by fatigue.
Night driving tips include:
• ...
How to Add Coolant to the
Coolant Surge Tank
WARNING!
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engin ...