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:
Rear Seats
Split Folding Seatbacks
With this feature, either side of the rear seatback can be folded down for
more cargo space.
Folding the Seatbacks
Notice: Folding a rear seat with the safety belts s ...
All-Wheel-Drive Vehicles
Dinghy and Dolly Towing
Notice: Towing an all-wheel-drive vehicle with all four wheels on the ground,
or even with only two of its wheels on the ground, will damage drivetrain components.
Do ...
Turn-by-Turn
This display is used for the OnStar or Navigation System Turn-by-Turn
guidance. See OnStar Overview or the navigation manual, if the vehicle has
navigation, for more information. ...