See also:

Fuel Gauge
When the ignition is on, the fuel gauge shows about how much fuel the vehicle has left in the tank. An arrow on the fuel gauge indicates the side of the vehicle the fuel door is on. The gauge ...

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 ...