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" width=19
height=17 id="_x0000_i1807" src="images/books/1183/10/index.2.gif" border=0>, and an
Advisor can run a check.
See also:
Windshield Wiper/Washer
The windshield wiper/washer lever is located on the right side of the
steering column. With the ignition in ACC/ACCESSORY or ON/RUN/START, move the
windshield wiper lever to select the wiper spe ...
Making Turns
Notice: Making very sharp turns while trailering could cause the trailer
to come in contact with the vehicle. The vehicle could be damaged. Avoid making
very sharp turns while trailering.
When tu ...
Instrument Panel
A. Air Vents.
B. Turn and Lane—Change Lever.
See Turn and Lane-Change Signals.
Driver Information Center (DIC) Controls. See Driver Information Center
(DIC).
C. Cruise Control.
Hea ...