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:
Lap-Shoulder Belt
All seating positions in the vehicle have a lap-shoulder belt.
The following instructions explain how to wear a lap-shoulder belt properly.
1. Adjust the seat, if the seat is adjustable, so you ...
Control Buttons
The knobs and buttons used to
control the radio are:
FM/AM: Press to choose between
FM and AM.
TUNE/TONE: Turn to search for
stations.Press to enter the
Tone menu.
MENU/SELECT: Turn clockwi ...
Skip Shift (CTS–V)
Under light acceleration, the
transmission will only allow you to
shift from 1 (First) to 4 (Fourth).
Shifts from 1 (First) to 2 (Second) or
3 (Third) are not allowed. This helps
improve fuel ...