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:
StabiliTrak® System
The StabiliTrak system assists with directional control of the vehicle in
difficult driving conditions.
The system is on when the vehicle is started.
- To turn off both Traction Control and Sta ...
Clock (Digital Clock)
The infotainment system controls are used to access the time and date
settings through the menu system. See Operation for information about how to
use the menu system. See the separate navigation ma ...
Security
OnStar provides services like Stolen Vehicle Assistance, Remote Ignition Block,
and Roadside Assistance, if the vehicle is equipped with these services. OnStar
can unlock the vehicle doors remotel ...