ICUC Alert Messages
Below is an overview of ICUC driver display screens and functions.
Fig. 1, Sample Alert Messages
Alert messages are displayed when certain conditions occur. They include notices, cautions, and warnings that require the driver’s attention. Not all alert messages are critical to the operation of the vehicle. More important messages take priority over less important messages. The header text and color indicates the priority of the on-screen message:
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Status/Informational (blue, green, white, or grey)
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Caution (amber)
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Warning (red)
In general, status notices alert the driver to situations or conditions that may improve fuel efficiency or vehicle drivability.
Cautions alert the driver to situations or conditions that may result in damage to vehicle components or derating of engine power.
Warnings alert the driver to situations or conditions that may pose a threat to control of the vehicle. Follow all instructions given in the message.
See Fig. for typical alert messages.
ICUC Watch for Ice Popup
When ambient air temperature drops below 34°F (1°C), a Watch For ICE popup message will appear. See Fig.. Acknowledge and dismiss this message by pressing the back button in the left hand steering wheel switch pod.
Fig. 2, ICUC Watch for Ice Popup
An ambient air temperature below 34°F (1°C) will also cause a snowflake icon to appear next to the display temperature. The snowflake icon will display until the ambient air temperature rises to 37°F (3°C).
If the temperature drops below 34°F (1°C) after rising above 37°F (3°C), the Watch For ICE popup and snowflake will reappear.