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.
UNLESS AIRSUSPENSION LITE IS ON IT SHOULD BE OK
sounds like you have an air leak in the system. yes it will drain the battery, the air compresser is working to over come the leak
my alarm system keep disable my car how do I reset or disable this alarm system
what would cause my navigation system to quit
Quit. Keep leveling? What kind of question is this.
De-leveling the System - 2012 was released on: USA: November 2012
An automatic leveling system is a suspension system which automatically adjusts front and rear ride heights to compensate for changes in axle load.
We need more info simply other than your sound quit working
It could have load leveling shocks in the rear.
2018 suberban
The motor may have quit working .
If it is a regina fuel system it has just one pump