Vsa Warning Light On problems of the 2008 Chevrolet Uplander

On 05/31/2016 called Chevrolet to ask why stability control light went on when going over a bump in road. 06-02-2016 called local dealership about stability light problem, was told that is was a loose connection most likely. After looking online, we ignored the light. On August 28, 2017 we brought the Uplander into another dealership for an estimate on the fuel service. That evening when we went to pick the van up, the service tech said that the transmission was "gone". He gave an estimate on a new transmission. We had been driving the van without problems but for losing power going up hills, that's why we wanted the fuel service, previously that was the problem. We have serviced this vehicle all the time from when we purchased in December of 2008. When we picked the van up we didn't make it more than 4 blocks when it stopped moving. Now the transmission mechanic says the transmission has overheated and needs a complete rebuild for $2,600. 00. Online the chevy forum says that the module goes and the transmission overheats destroying the transmission, but also states a light comes on. This light has not come on if its not the stability control light.

Clicking, squeaky, clunky noises in rear suspension. There is a jerk at 20mph, as you drive it keeps jerking as you pick up speed. Stability control system light keeps coming on even after I changed the wheel bearing.

Anti brake lights, stability and traction control lights and tire pressure lights continually appear. Have replaced rotors twice, complete brake assembly twice, and front wheel bearings once. No one seems to know exactly what the problem is. Diagnoses run from wiring harness to anti lock brake system.