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
The vehicle's rear seats have head
restraints in the outboard seating
positions, but they are not
adjustable.
Rear outboard head restraints are
not designed to be removed. ...
Hydroplaning
Hydroplaning is dangerous. Water can build up under the vehicle's tires so they
actually ride on the water. This can happen if the road is wet enough and you are
going fast enough. When the ve ...
Battery
The battery supplies power to
start the engine and operate any
additional electrical accessories.
- To avoid break–down or failure
to start the vehicle, maintain a
battery with full cranking ...