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:
Setting a Value
1. Turn the Menu knob to change
the current value of the setting.
2. Press SELECT to confirm the
setting. ...
Hill and Mountain Roads
Driving on steep hills or mountains is different
from driving in flat or rolling terrain.
If you drive regularly in steep country, or if you are
planning to visit there, here are some tips that
...
Fuel Additives
To provide cleaner air, all gasolines in the United States are now required to
contain additives that help prevent engine and fuel system deposits from forming,
allowing the emission control syste ...