OnStar Services
See also:
Add-On Electrical Equipment
Notice: Do not add anything electrical to the vehicle unless you check with your
dealer first. Some electrical equipment can damage the vehicle and the damage would
not be covered by the vehicle ...
Driving on Grades
Reduce speed and shift to a lower gear before starting down a long or steep downgrade.
If the transmission is not shifted down, the brakes might have to be used so much
that they would get hot and ...
Manual Operation
The air delivery mode or fan speed can be manually adjusted.
(Fan Control): Press to increase or decrease the fan speed.
Pressing or
while in automatic control places the fan speed under manual ...





