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:
Setting a Value
1. Turn the Menu knob to change
the current value of the setting.
2. Press SELECT to confirm the
setting. ...
Service
For service and parts needs, visit your dealer/retailer.
You will receive genuine GM parts and GM-trained and
supported service people.
Genuine GM parts have one of these marks:
...
Turning the System On or Off
VOL/ (Volume/Power): Press to
turn the system on and off.
Automatic Switch-Off
If the infotainment system has been
turned on after the ignition is turned
off, the system will turn off
autom ...