Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push
, and an
Advisor can run a check.
See also:
Traction Control System (TCS)
The traction control system limits wheel spin. The system is on when the vehicle
is started.
To turn off traction control, press and release g located below the infotainment
system screen. i ...
Safety Locks
Safety Locks
Press o to activate the safety
locks on the rear doors. The
LED (A) comes on when activated.
The rear door power windows are
also disabled.
Press o again to deactivate the
...
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 methylcyclopentadienyl ...
