See also:

Uniform Tire Quality Grading
Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Using Softkeys to Control a USB Storage Device or iPod
The five softkeys below the radio display are used to control the functions listed below. To use the softkeys: 1. Press the first or fifth softkey below the radio display to display the functions li ...