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:
Finding a Station
AM Source Shown, Other Sources Similar
If viewing a map screen, press the source screen (AM, FM, XM (if equipped), CD,
etc.) button. The display splits between the audio screen and the map screen ...
Reporting Safety Defects to the Canadian Government
If you live in Canada, and you believe that the vehicle has a safety defect,
notify Transport Canada immediately, and notify General Motors of Canada
Limited.
Call Transport Canada at 1-800-333-0 ...
Adjusting the Equalizer (EQ)
If the radio has this feature, the EQ
can be adjusted between talk and
manual.
To choose an EQ setting:
1. Press the TUNE/TONE knob.
2. Select EQ.
3. Select Talk or Manual.
4. Press the Back ...






