See also:

Dual Mode
This dual screen symbol displays when the screen is in dual mode. Dual mode displays the route on half of the screen and a maneuver or Interstate Exit list on the other half. The Interstate Exit ...

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 v ...

Using Voice Commands During a Planned Route
Cancel Route 1. Push . System responds: “OnStar ready,” then a tone. Say “Cancel route.” System responds: “Would you like to cancel route directions to your destination?” 2. Say “Yes.” System re ...