GM Service Manual Online
For 1990-2009 cars only

Voice Recognition CTS

If your vehicle is equipped with this feature, the navigation system's voice recognition allows for hands-free operation of navigation and audio system features. Voice recognition can be used when the ignition is on or when Retained Accessory Power (RAP) is active.

To use navigation voice recognition, do the following:


  1. Object Number: 811670  Size: A1

    Press the talk symbol steering wheel control and release it when you hear a beep. The audio system, if on, will mute.

  2. Clearly state one of the commands listed on the following pages. When the system recognizes the command, it will either perform the function or issue an error message, such as "invalid command" or "command not recognized."
  3. The invalid command message indicates that the command cannot be used in the currently active screen. For example, if you say "Next Track" while listening to the radio, you will receive the invalid command message because the command is for the DVD player or CD changer, not the radio.

If you experience difficulty with the system recognizing a command, try saying it more softly.

Voice Recognition Commands

The following list shows all of the voice commands available for the navigation system with a brief description of each. To use the voice commands, refer to the instructions listed previously.

Universal Commands

These commands can be said from any screen. The system will respond accordingly.

What Can I Say?: This command instructs the system to respond with a list of verbal commands available to you. The list of commands will vary depending on which screen is currently active.

Acknowledge/OK: This command instructs the system to clear a Driver Information Center (DIC) warning message from the screen when displayed. See "DIC Warnings and Messages" in Section 3 of your vehicle's owner manual for more information.

Radio: This command instructs the system to display the Radio screen. Once the screen is displayed, you can use other radio commands. See "Radio Commands" later in this section for more information.

Audio Mode: This command instructs the system to display the Audio screen. See "Setting the Tone" under Navigation Audio System for more information.

CD Player: This command instructs the system to display the CD player screen. Once the screen is displayed, you can use other CD player commands. See "CD Commands" later in this section for more information.

CD Changer: This command instructs the system to display the CD changer screen. Once the screen is displayed, you can use other CD changer commands. See "CD Commands" listed later in this section for more information.

DVD: This command instructs the system to display the DVD player screen. Once the screen is displayed, you can use other DVD commands. See "DVD Commands" later in this section for more information.

Navigation: This command instructs the system to display the navigation startup screen. This screen will only be displayed the first time navigation is accessed. Once the navigation system is active, you can use other navigation commands. See "Navigation Commands" later in this section for more information.

Setup: This command instructs the system to display the Setup menu. See Setup Menu .

Main Menu: This command instructs the system to display the Main Menu screen. Once the screen is displayed, you can use other Main Menu commands.

Information: This command instructs the system to display the Vehicle Information menu. See Driver Information Center (DIC) for more information.

Voice Memo: This command instructs the system to display the Voice Memo screen. Once the screen is displayed, you can use other Voice Memo commands. See "Voice Memo Commands" later in this section for more information.

Address Book: This command instructs the system to display the Address Book screen. Once the screen is displayed, you must operate the system manually. See Main Menu .

Mute, Unmute: The Mute command instructs the system to turn off all sound. The Unmute command will return the sound to its previous level.

DSP Off: This command instructs the system to turn off DSP for the current audio source.

DSP Talk: This command instructs the system to change the DSP to Talk for the current audio source.

DSP Driver Seat: This command instructs the system to change the DSP to Driver Seat for the current audio source.

DSP Rear Seat: This command instructs the system to change the DSP to Rear Seat for the current audio source.

DSP Spacious: This command instructs the system to change the DSP to Spacious for the current audio source.

Set Day: This command instructs the system to change the screen appearance to Day mode.

Set Night: This command instructs the system to change the screen appearance to Night mode.

Set Day/Night Auto: This command instructs the system to change the screen appearance to Auto mode.

Set Units English: This command instructs the system to set measurement units to feet/miles.

Set Units Metric: This command instructs the system to set measurement units to meters/kilometers.

Set Units Imperial: This command instructs the system to set measurement units to yards/miles.

Load Disc: This command instructs the system that you will be loading a CD into the CD changer.

Load All: This command instructs the system that you will be loading six CDs into the CD changer.

Eject Disc: This command instructs the system to eject the currently active CD from the CD changer.

Radio Commands

AM: This command instructs the system to change the audio source to AM.

FM1: This command instructs the system to change the audio source to FM1.

FM2: This command instructs the system to change the audio source to FM2.

XM1: This command instructs the system to change the audio source to XM1.

XM2: This command instructs the system to change the audio source to XM2.

RDS Message On, RDS Display Message On: This command instructs the system to turn on the RDS Message feature.

RDS Message Off, RDS Display Message Off: This command instructs the system to turn off the RDS Message feature.

RDS Traffic On: This command instructs the system to turn on the RDS traffic feature.

RDS Traffic Off: This command instructs the system to turn off the RDS traffic feature.

RDS Alternate Frequency On: This command instructs the system to turn on the RDS alternate frequency feature.

RDS Alternate Frequency Off: This command instructs the system to turn off the RDS alternate frequency feature.

Radio Tune: This command instructs the system to change the current radio station by saying the command and then the frequency of the radio station. For example, if you say "radio tune ninety four point seven," the station will switch to 94.7 FM. If you are changing the station for the AM band, say "radio tune ten seventy" for 1070 instead of "one zero seven zero." If the station frequency has two or three zeros, such as 600 or 1000 AM, say "radio tune six hundred" or "radio tune one thousand." The exception is a station frequency that includes a zero between other numbers. In this case, say "oh" instead of zero as in "radio tune one oh seven point nine" for frequency 107.9 FM. This feature does not work with XM™.

Seek Up, Seek Down: These commands instruct the system to seek up or down to the next or previous station and stay there.

Scan Up, Scan Down: These commands instruct the system to preview stations either forward or backward. To stop this feature, say "Scan" again.

Preset X: This command instructs the system to change the current radio station to one of the preset stations on the active audio source. To use this command, you must know the number of the preset you wish to hear. For example, if you want to hear the station saved to preset three, say "preset three."

CD Commands

CD Player: This command instructs the system to display the CD player screen. If a music CD is loaded, it will begin playing.

CD Changer: This command instructs the system to display the CD changer screen.

Pause: This command instructs the system to stop play on a CD.

Play: This command instructs the system to resume play of a CD.

Play Track X: This command instructs the system to play a specific track. To use this command, you must know the number of the track you wish to hear. For example, if you want to hear the second track on the current CD, say "play track two."

Next Track: This command instructs the system to advance the current CD to the next track.

Previous Track: This command instructs the system to go to the previous track or re-start the current track.

Next Disc: This command instructs the system to advance the CD changer to the next CD loaded.

Previous Disc: This command instructs the system to go back to the previous disc.

Disc X : This command instructs the CD changer to play a specific CD. To use this command, you must know the number of the CD you wish to hear. For example, if you want to hear the CD loaded in slot two, say "disc two."

Random Track On: This command instructs the CD changer to play the tracks on the current CD in random, rather than sequential, order.

Random Track and Disc On : This command instructs the CD changer to play the tracks on the current CD in random, rather than sequential, order. Once the current CD is finished, the next CD to play will be chosen randomly.

Random Off: This command instructs the system to turn off random play.

Repeat Track On: This command instructs the system to play the currently selected track again.

Repeat Disc On: This command instructs the CD changer to play the current CD again once all the tracks have played.

Repeat Off: This command instructs the system to turn off the repeat feature.

DVD Commands

Play: This command instructs the system to play a DVD from the disc menu screen or if the movie has been stopped or paused.

Pause: This command instructs the system to pause a DVD.

Next Track: This command instructs the system to advance to the next chapter on a DVD.

Previous Track: This command instructs the system to reverse to the previous chapter on a DVD or to re-start the current chapter if it has been less than five seconds since the current chapter started.

Eject Disc: This command instructs the system to eject the DVD.

Voice Memo Commands

The following are verbal commands that can be used when the Voice Memo screen is active.

Memo Play: This command instructs the system to play the memo currently highlighted on the screen.

Memo Play X: This command instructs the system to play a memo saved to a specific location that is not the memo currently highlighted on the screen. To use this command, you must know the location of the memo you wish to hear. For example, if you want to hear the memo saved to location three, say "memo play three."

Memo Stop: This command instructs the system to stop playback of a memo.

Memo Record: This command instructs the system to begin recording a memo.

Memo Append: This command instructs the system to add to the memo currently highlighted on the screen.

Memo Append X: This command instructs the system to add to a previously recorded memo that is not the memo currently highlighted on the screen. To use this command, you must know the location of the previously recorded memo to which you want to add information. For example, if you want to add to the memo stored in location two, say "memo append two."

Memo Delete: This command instructs the system to delete the memo currently highlighted on the screen.

Memo Delete X: This command instructs the system to delete a previously recorded memo saved to a specific location. To use this command, you must know the location of the memo that you want to delete. For example, if you want to delete the memo saved in location one, say "memo delete one."

Yes: This command confirms choices made while using the Voice Memo screen.

No: This command cancels choices made while using the Voice Memo screen.

Navigation Commands

North Up: This command instructs the system to switch from the current map view to North Up.

Heading Up: This command instructs the system to switch from the current map view to Heading Up.

Bird View: This command instructs the system to switch from the current map view to the bird view.

Split View: This command instructs the system to switch from the current map view to a regular view of the map with a pop-up view of upcoming turns.

Single Screen: This command instructs the system to switch back from the split view screen to the regular map view.

Map View: This command instructs the system to switch from the current map view to the map screen with the route highlighted.

Zoom In: This command instructs the system to provide a closer scale view of the current map.

Zoom Out: This command instructs the system to provide a larger scale view of the current map.