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:
Weight of the Trailer
How heavy can a trailer safely be?
It depends on how you plan to use your rig.
For example, speed, altitude, road grades, outside
temperature and how much your vehicle is used
to pull a trailer ...
Home Page
The infotainment system displays a home page that makes accessing many of the
features an easy process.
Back: If on page 2 of the Home Page, press Back to return to page 1 of the Home
Page. If on ...
Jump Starting
For more information about the vehicle battery, see Battery .
If the battery has run down, try to use another vehicle and some jumper cables
to start your vehicle. Be sure to use the following step ...