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:
FCC Information
See Radio Frequency Statement for information regarding Part 15
of the Federal Communications Commission (FCC) rules and Industry Canada Standards
RSS-GEN/210/220/310.
Frequency of op ...
Brake System Messages
SERVICE BRAKE SYSTEM
This message displays along with the brake system warning light if there is a
problem with the brake system. See Brake System Warning Light . If this
message appears, s ...
Checking Engine Oil
It is a good idea to check the
engine oil level at each fuel fill.
In order to get an accurate reading,
the vehicle must be on level
ground. The engine oil dipstick
handle is a yellow loop. S ...