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:
Braking
Braking action involves perception
time and reaction time. Deciding to
push the brake pedal is perception
time. Actually doing it is
reaction time.
Average driver reaction time is
about thr ...
Tumbling the Third Row Seat
To tumble the seat:
1. Open the liftgate to access the controls for the seat.
2. Make sure the headrests are completely lowered and there is nothing under,
in front of, or on the seat.
3. Fold th ...
Up-Shift Light
Vehicles with a manual transmission
have an up–shift light on the
instrument panel. This light shows
when to shift to the next higher gear
for the best fuel economy.
When this light comes o ...