Air Suspension Height Control Switch
If equipped, the air suspension height control dash switch can be used to adjust the vehicle height to aid in coupling or uncoupling from a trailer. The switch will illuminate red when active.
If the suspension is at normal height:
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each up press on the dash switch, shown in Fig., increases the suspension height an increment, unless the suspension is at maximum height
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a down press lowers the suspension to its lowest set-point (usually axle stops)
If the suspension is below normal height:
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an up press increases the suspension height to normal ride height
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a down press does nothing; the suspension is already at its lowest point
If the suspension is above normal height:
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each up press increases the suspension height an increment, unless the suspension is at maximum height
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a down press lowers the suspension to normal ride height
Fig. 1, Air Suspension Height Control Switch
Suspension Height Messaging
On vehicles equipped with the ICU, messages about above or below normal ride height will display in the message field of the driver display. See Fig..
