Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Satellite Radio
For vehicles equipped with the MyLink or IntelliLink infotainment system, see
the separate MyLink/ IntelliLink Features and Functions Guide for more information.
Vehicles with an XM™ Satellite Ra ...
Call Waiting
Call waiting must be supported on the cell phone and enabled by the wireless service carrier.
• Press to answer an incoming call when another call is active. The original call is placed on hold.
...
Jump Starting
For more information about the vehicle battery, see Battery on page 10‑31.
If the vehicle is a hybrid, see the hybrid supplement for more information.
If the vehicle's battery (or batteries) h ...