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:
Uniform Tire Quality
Grading
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width.
For example: ...
Windows
WARNING!
Leaving children, helpless adults,
or pets in a vehicle with the
windows closed is dangerous.
They can be overcome by the
extreme heat and suffer
permanent injuries or even death
...
Remote Start Auto Heated Seats
When on, this feature will turn the heated seats on when using remote start
on cold days.
Press the MENU/SELECT knob when Remote Start Auto Heated Seats is
highlighted. Turn the knob to select On ...