Transferring Service
Push 
to request account
transfer
eligibility information. The Advisor
can assist in canceling or removing
account information. If OnStar
receives information that vehicle
ownership has changed, OnStar
may send a voice message to the
vehicle, requesting updated account
information.
See also:
Control Buttons
The knobs and buttons used to
control the radio are:
FM/AM: Press to choose between
FM and AM.
TUNE/TONE: Turn to search for
stations.Press to enter the
Tone menu.
MENU/SELECT: Turn clockwi ...
Viscosity Grade
SAE 5W–30 is the best viscosity
grade for the vehicle. Do not use
other viscosity grade oils such as
SAE 10W–30, 10W–40, or 20W–50.
If in an area of extreme cold,
where the temperature falls ...
Services Not Included in
Roadside Service
- Impound towing caused by
violation of any laws.
- Legal fines.
- Mounting, dismounting,
or changing of snow tires,
chains, or other traction devices.
- Towing or services for vehicles
dri ...