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:
How the System Works
The SBZA symbol lights up in the side mirrors when the system detects a vehicle
in the side blind zone, indicating it may be unsafe to change lanes. Before making
a lane change, check the SBZA dis ...
Instrument Panel
CTS Shown, CTS–V Similar
A. Air Vents.
B. Driver Information Center (DIC).
C. Instrument Panel Illumination
Control.
D. Turn and Lane-Change Signals.
E. Instrument Cluster.
F. Windshield Wip ...
Extending Engine Run Time
To extend the engine run time by
10 minutes, repeat Steps 1 and 2
while the engine is still running.
The engine run time can only be
extended if it is the first remote start
since the vehicle ...