Originally Posted by TurboRush
There were a few posts last month on here and other places where folks saw this in the extreme cold and or having a scenario where there was a lot of snow build up. In all instances the issue resolved itself when there was some form of warm up, e.g in a garage, parking garage, outside temp - giving things the chance to warm up or melt.
This sounds similar and if it's acting fine now I wouldnt sweat it unless it comes back under different circumstances.
I just wanted to note that I had my 2012 Overland in the garage 3 times in Jan and Feb (Metro Detroit) due to warning messages with Quadra-Lift Air suspension. My symptoms. Remote start the vehicle first thing in the morning to warm it up. I hear a brief squealing / whistling noise come from under the from passenger side of the hood. Temps were anywhere from -20F to +15F. If I walk out to the vehicle while idling you can hear a compressor run briefly followed by a hissing sound (presumably to relieve pressure). EVIC message comes up. Vehicle would not raise or lower. Later in the day (or the next day) after things warmed up it may work. Seems to work if temps stay above 20F.
The first time this occurred I received the same EVIC message as others. I immediately brought it to the garage. The dealer kept it for three days. In the end they say they found error codes but nothing was wrong. I said bullshucks. I've read about compressor problems in the forums. This is a similar case. I asked if they checked nitrogen levels. The guy looked at me as if I was from space.
The second time I left the vehicle parked outside (remaining cold) when I dropped it off. The suspension was locked out as before. I suggested they test it immediately since it was exhibiting the same problem reported earlier and was currently non-functional. The technician didn't get in until 6 hours later after it had warmed up. Gee, problem went away.
The third time the vehicle was stuck in park position. I had to drive it 20 miles to the dealership lowered in park position. During the transition the rear wheel must have rubbed the back fascia. The rear bumper trim was dislodged from the snap clips on the drivers side rear. I pulled it into the garage and left it running. I told the service manager to have a look at it immediately since it was currently non-functional. They reported back later in the day error codes existed but no problems found. WTF? I had to refasten the rear bumper trim myself later that evening.
They say this system is incredibly complex and difficult to diagnose. The sad thing is I believe I know much more than they do by spending a few hours in the forum.
Insert a paragraph of swearing here.
My problem. The vehicle has not acted up in the last few weeks. QLII still works as long as temps are above 20F. For now. However, if something is screwed up I'm out of options. The vehicle just went out of warranty. The right dealership would have corrected the problem beforehand. However even in Detroit , where the vehicle was designed, it is still impossible to find a dealership that knows his system well enough to diagnose and correct.
What good is QLII if it can't lift your vehicle up in deep snow or bad weather?
How about them apples?