Head Up Display Description and Operation
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Head Up Display Description and Operation
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The head up display is a secondary display system that reflects vehicle information onto the windshield. The head up display system consists of the following:
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The vehicle speed display
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The engine speed display
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The outside air temperature display
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The audio information display
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The transmission gear display
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The compass heading display
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The turn-by-turn display if the vehicle is equipped with a navigation radio
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The head up display displays the following:
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Traction control active message
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Stabilitrak active message
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Check tire pressure message
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Speed limited to message
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For further information, refer to
Indicator/Warning Message Description and Operation
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The head up display displays the vehicle speed based on the information from the ECM. The ECM sends the vehicle speed information via a High Speed CAN-Bus signal to the instrument cluster. The instrument cluster then sends the vehicle speed information via a Low Speed CAN-Bus signal to the head up display in order to display the vehicle speed, either in kilometers or miles, based on the vehicle requirements
The windscreen display shows engine speed based on the information from the ECM. The ECM converts data from the engine speed sensor to an engine speed signal. The ECM sends the information on engine speed to the combined instrument panel via signals on the fast CAN bus. The instrument cluster then sends the information via a Low Speed CAN-Bus signal to the head up display to display the engine speed.
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Audio Information Display
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The head up display displays the following audio information:
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The audio source or band and station or track information
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The CD disc (for multiple changer) and the CD track
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The turn-by-turn display if the vehicle is equipped with a navigation radio
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The head up display receives serial data messages from the radio indicating the display mode, the frequency, the band, and the CD track.
The head up display switch is located to the left (part of near headlamp switch) of the steering wheel. The head up display switch consists of the following controls:
Off
To turn off the head up display, rotate the dimming knob fully counterclockwise until the head up display turns off.
Dimming
Turn the dimming knob clockwise or counterclockwise to brighten or dim the head up display.
Up/Down
Press the Up or Down switch to center the head up display image in your view. The head up display image can only be adjusted up and down, not side to side.
Side
There are three different formats which can be selected. Each press of the page switch will cycle to the next page. Holding down the button does not cycle through pages.
There are three different formats with different displays.
Format 1 shows:
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The vehicle speed display
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The transmission gear display
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The outside air temperature display
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The compass heading display
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Format 2 shows:
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The vehicle speed display
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Transmission gear display (only for Tap up/down mode)
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Format 3 shows:
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The vehicle speed display
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The engine speed display
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The transmission gear display
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