Reactivation for Subsequent Owners
Push 
and follow the prompts to
speak to an Advisor as soon as
possible after acquiring the vehicle.
The Advisor will update vehicle records and will explain the OnStar service offers and options available.
See also:
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 oil must
be warm and the vehicle must be on level ground.
The engine oil dipstick handl ...
Safety Warnings and Symbols
Warning Messages found on vehicle labels and in this
manual describe hazards and what to do to avoid
or reduce them.
Danger indicates a hazard with a high level of risk
which will result in ser ...
Making a Call
To make a call:
1. Press once or twice, depending
on the radio.
2. Enter the character sequence. See “Entering a Character Sequence” in Operation
for more information.
3. Select Call ...