self leveling suspension

[iluvspl]

Hey guys i have a 05 4.4 with the rear air suspension. I have had eibach springs put in the front and the dealership lower the rear for over 2 years now. Just today i get in the car and notice self leveling suspen inactive. This has popped up before but just goes away and i turned the car off and back on and it went away again. My concern is that my car warranty is up in 1000 miles and was interested if anyone has had this happen or heard of this before. I have an appointment tomorrow just wanted to go in with some knowledge before if possible. Thanks