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You will want to get the trouble codes read out of the electronic susspension to see why the light is remaining on. Also, check the rear height sensors to see if they are out of adjustment.
Connect the New Generation STAR (NGS) Tester to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the NGS menu.If the DTC's retrieved are related to the concern, go to the Rear Suspension Control Module Diagnostic Trouble Code (DTC) Index to continue.
CAUTION: The suspension height D dimensions are for reference only. The vehicle attitude must be controlled by the proper dimensions to prevent vehicle damage.NOTE: Improper air suspension ride height D dimension may be caused by an air suspension system that is improperly set.
NOTE: If D ride height dimension is not within specification, adjust by moving the rear air suspension height sensor attaching bracket inboard (vehicle high) or outboard (vehicle low). Moving the bracket one index mark left or right will change the vertical D dimension approximately 5 mm (0.20 inch) .