Vehicle Settings
See Vehicle Personalization for more information.
See also:
How OnStar Service Works
: This blue button connects you
to a specially
trained OnStar advisor to verify your account information
and to answer questions.
: Push this red emergency button to
get priority help
fro ...
Passlock®
Your vehicle has the Passlock® theft-deterrent
system.
Passlock® is a passive theft-deterrent system that
enables fuel if the ignition lock cylinder is turned
with a valid key. If a correct ke ...
Gasoline Specifications (U.S. and Canada Only)
At a minimum, gasoline should meet
ASTM specification D 4814
in the United States or CAN/CGSB-3.5 or 3.511 in Canada.
Some gasolines contain an
octane-enhancing additive called
methylcyclopen ...
