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:
Battery Load
Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the batter ...
Increasing Speed While Using Cruise Control
If the cruise control system is already activated,
. Press and hold the +RES button on the steering wheel until the desired speed
is reached, then release it.
. To increase vehicle speed in small ...
Compass
The vehicle may have a compass display in the Driver Information Center
(DIC). See Compass. ...