Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving.
If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.
See also:
Storing a Flat or Spare Tire and
Tools With a Screw in Fastener
1. Turn the wrench
counterclockwise to remove the
fastener.
2. Replace the fastener with the
one provided in the foam.
3. Turn the wrench clockwise to
tighten the fastener.
4. Replace the ...
Radio Settings
Press the Config button on the Home Page or the CONFIG button on the faceplate
to enter the menu options. Turn the TUNE/MENU knob or touch-tap the scroll bar to
scroll through the available option ...
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. Sa ...