I don't think that having quadralift is specific to the error appearing when driving on sand.
I have a 2011 Grand Cherokee Limited without Quadralift and this is my experience.
2nd day of ownership and I thought it would be a good idea to take a little drive on 7 mile beach Lennox Head (AUS) to test her out. Having watched a
for Jeep middle east I thought it would be a piece of cake.
So I got it onto the beach through the soft stuff easy, I thought this is nice, cruised for 5 minutes on the hard wet sand before turning around to head back off the beach as it was getting late.
I got near the exit run up about 100 mtrs of soft dry sand checked no vehicles were coming in then proceeded to pick my line and hit the gas, to my dismay I got half way and lost front wheels and sunk to rear axle Serv 4WD light on the display.
Bugger, I rang Jeep Service center in Brighton VIC where i bought the jeep, never heard of the error was told to disconnect battery to see if that would help, no dice error persists. Rang Jeep assist, no help because I'm off road. Rang independent towing companies, no one can tow me off the beach, I thought well I'm screwed, two other 4wd's on the beach stopped to see if they could give me a hand but no one had and sufficient slings or gear and thats when I found out my 2011 is actually a 2012 spec with the pissy little eye bolt.
I borrow a shovel and start digging, after clearing around the axle and rear wheels I jump in turn on ignition, the error is gone but seconds later is back after doing nothing no IE no gear change or acceleration.
So i turn off and on and as quick as i can put it in reverse a hit the gas, presto I'm out of my hole but stuck again 3 meters back when the error returns and front wheel drive fails. I repeat the steps and manage to get back on the hard sand and after 10 attempts back and forward cutting a track with my 4 seconds of 4wd I manage to make it through the soft sand and onto the access track, as soon as I'm on the road the error disappears, i head to the closest servo and inflate my tyres then get home and goggle the Serv 4WD error which leads me to this and other threads.
Later I ring Jeep Lismore and tell them about the ordeal, they said they have never heard of the issue, I bring the Jeep in but they find no fault codes and say there is nothing wrong. Thats Bull I didn't imagine that I nearly lost my 60K Jeep over a Serv 4WD error.
Unsatisfied I call Jeep Newcastle NSW as its apparent people have had similar issues with their WK2's in the Newcastle area.
The service manager there was great, he stated that he was aware of the issue and that Melbourne Head office and Chrysler USA are aware of the issue and that they are currently testing a fix that is soon to be released.
I might call Newcastle Jeep again and see if there is any progress on the fix.