Reactivation for Subsequent Owners
Push 
and follow the prompts to
speak to an Advisor as soon as
possible after acquiring the vehicle.
The Advisor will update vehicle records and will explain the OnStar service offers and options available.
See also:
Controls
The infotainment system is operated
by using the pushbuttons,
multifunction knobs, menus shown
on the display, and steering wheel
controls, if equipped. ...
Outside Heated Mirrors
For vehicles with heated mirrors:
(Rear Window Defogger): Press
to heat the
mirrors.
See “Rear Window Defogger” under Climate Control
System or Dual Automatic Climate Control
System for ...
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling ...