There is a specific fuse for the auto leveler. Same place as normal fuses. Pull it out, and leveler will quit draining your battery when shut off! if you are having problems with the compressor running the battery down, it is probably due to air leaks in the system. i have extended the life of my air ride system on my 1994 park ave. i lubricated and in effect reconditioned the lines and fittings with dish soap. also i disconnected the line at the compressor and put a few drops in the line. have someone sit on the trunk with the line disconnected at the compressor. this will compress the rear air struts. the put a few drops of liquid dish soap into the air line. when your helper gets off the trunk the soap will be sucked into the air line. replace the line and let the system run. you might need to repeat this proceedure a day or two later. also the level/height sensor is located on the right rear control arm. i was able to adjust my ride height by bending the connecting arm by about one inch.
De-leveling the System - 2012 was released on: USA: November 2012
A system using an air pump and air shocks or air ride to keep the vehicle level no matter the load placed on the vehicle.
An automatic leveling system is a suspension system which automatically adjusts front and rear ride heights to compensate for changes in axle load.
Yes if you purchase the LT model
It could have load leveling shocks in the rear.
2018 suberban
Under hood drivers side fenderwell It is a small air compressor with an electrical plug and a plastic air line coming from it
With inexpensive disconnect tools that are available at your local auto parts store.
Cef
There are many reasons why the leveling system will quit working. The first thing to check would be the brake interlock wires, one may have come loose.
on the right side near the glove compartment theres a small box HVAC programmer for the compressor disconnect it and connect it again and it should. If the fuse is okay and relay okay compressor okay then do the above instructions
??and what is it you wish to know??