This section presents basic information needed to operate the navigation system.

Use the hard keys located on the navigation system along with the available touch screen buttons on the navigation screen to operate the system. See Navigation System Overview for more information.

Once the vehicle is moving, various functions are disabled to reduce driver distractions.

Hard Keys

The following hard keys are located on the navigation system:

VOL/ (Volume/Power): Press to turn the system on and off. Turn this knob to increase or decrease the volume. The volume works for the features that are currently being used; audio, OnStar® changes the volume for the phone, voice guidance, and speech recognition changes the volume of voice prompts.

TUNE/TONE: Turn to go to the next or previous radio station/channel, track, or chapter. Press this knob to access the Sound screen to adjust bass, midrange, treble, and Digital Signal Processing (DSP). See Navigation Audio System , CD Player , DVD Player , and Hard Drive Device for more information.

NAV (Navigation Screen Up/Down): Press to make the screen go up and down. In the up position, all touch screen buttons can be viewed or used. In the down position, a portion of the screen will be shown that displays the current audio source and temperature.

FAV (Favorite): Press to access the preset stations. See "Storing Radio Station Presets" under Navigation Audio System for more information.

SEEK / SEEK: Press the seek arrows to seek and scan radio stations, to seek tracks on a CD or MP3, to seek chapters on a DVD, and to seek songs on the HDD, USB, and iPod®. See Navigation Audio System , CD Player , DVD Player , and Hard Drive Device for more information.

(CD/DVD Eject): Press to eject a CD or a DVD.

AUDIO: Press to access the full Audio screen to change AM, FM, XM™ Satellite Radio Service (if equipped), CD, MP3, DVD, HDD, USB, and iPod, and auxiliary input. See "Audio" under Navigation Audio System , CD Player , DVD Player , and Hard Drive Device for more information.

NAV (Navigation): Press to view your vehicle's current position on the map screen. Each press of this key cycles through Full Map and the tab that displays the current audio source (AM, FM, CD, etc.). Full Map displays the screen in full map view. Selecting the audio tab splits the screen between the map screen and the current audio source screen menu. See "Audio" under Navigation Audio System for more information.

MENU SELECT: Turn the MENU knob to highlight a feature. Press this knob to select the highlighted feature.

REC (Record): Press to record a CD, MP3, and USB to the hard drive. See Navigation Audio System , CD Player , and Hard Drive Device for more information.

CONFIG (Configure): Press to adjust features for sound, radio, navigation, the display, and clock. See Configure Menu for more information.

RPT (Navigation Repeat): Press to repeat the last voice guidance prompt.

DEST (Destination): Press to access the Route screen to plan a destination. If route guidance is active, press this key to access the Route screen. See Destination for more information.

DEL (Delete): Press to delete XM categories and information from the hard drive. See Navigation Audio System and Hard Drive Device for more information.

INFO (Information): Press for Speech Help and Weather. See Speech Recognition and Weather for more information.

(Play/Pause): Press to play and to pause Timeshift, CD, MP3, DVD, HDD, USB, iPod. See Navigation Audio System , CD Player, DVD Player , and Hard Drive Device for more information.

FWD (Forward): Press and hold to fast forward through devices such as CD, MP3, DVD, HDD, USB, and iPod. See Navigation Audio System , CD Player , DVD Player , and Hard Drive Device for more information.

REV (Reverse): Press and hold to quickly rewind through devices such as CD, MP3, DVD, HDD, USB, iPod. See Navigation Audio System , CD Player , DVD Player , and Hard Drive Device for more information.

Touch Screen Buttons

Touch screen buttons are located on the screen. Screen buttons are highlighted when a feature is available. There are also some toggle screen buttons that highlight when active and grey-out when inactive.

Alpha-Numeric Keyboard

Letters of the alphabet, symbols, punctuation, and numbers, when available, display on the navigation screen as an alpha or numeric keyboard. The alpha keyboard displays when the system requires entry of a name.

All characters are touch screen buttons. Touch a character to select it.

À-Ý (Accent Alphabet): Select this screen button to select letters with accent symbols.

A-Z (Alphabet): Select this screen button to select letters from the alphabet.

0-9 (Numbers): Select this screen button to select numbers.

Sym (Symbols): Select this screen button to select symbols.

Space: Select the space screen button to enter a space between characters or the words of a name.

(Backspace): Select the backspace screen button if an incorrect character has been selected.

To make name selections easier, the system only highlights the characters that can follow the last one entered. For example, if a Z is entered, a T may not be available for selection.

If a name does not display after entry, it may need to be entered differently since the map database may not contain that information.