Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Liftgate/Liftglass
CAUTION:
It can be dangerous to drive with the
liftgate or liftglass open because carbon
monoxide (CO) gas can come into your
vehicle. You cannot see or smell CO.
It can cause unconsciousness ...
Power Steering Fluid (3.6L V6 Engine)
See Engine Compartment Overview for information on the
location of the power steering fluid
reservoir. ...
Doing Your Own Service Work
WARNING
You can be injured and the vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it.
► Be sure you have sufficient knowledge, experience, ...