With all the air suspension issues, proper diagnosis is key with GT1/DIS.

However, the back shooting up high is usually indicative of an issue with the level sensor, either the sensor arm got flipped, or the sensor itself is dead. Take care of it soon though because that compressor is working overtime to jack up the rear and you don't want to burn it out.

__________________
2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards