Verify Minutes and Expiration
Push 
and say “minutes” then
“verify” to check how many minutes
remain and their expiration date.
See also:
Portable Audio Devices
Some vehicles have a 3.5 mm
(1/8 in) auxiliary input and a USB
port located in the center console.
External devices such as iPods®
laptop computers, MP3 players,
CD changers, and USB drives m ...
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 opt ...
Parking on Hills
WARNING!
Parking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the t ...