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:
Passenger Compartment Air Filter
The filter removes dust, pollen, and other airborne irritants from outside air and inside air when in recirculation mode.
To find out what type of replacement filter to use, see Maintenance Replaceme ...
The Inside
Here's where GM has really outdone itself in its new SUVs. Like the Tahoe,
the Yukon shows off one of the best interiors GM has ever mustered in a
mass-marketed vehicle. All the buttons are of abo ...
Theft-Deterrent Feature
The theft-deterrent feature works by learning a portion of the Vehicle Identification
Number (VIN) to the infotainment system. The infotainment system does not operate
if it is stolen or moved to ...