Vsa Warning Light On problems of the 2011 Chevrolet Traverse

While driving to work early January 18,2016 my check engine light and stability control light came on, not a minute later my steering went out and I hit a road sign. I had turned off the traction control before leaving my house as instructed by my service advisor at the chevy dealership. I believe gm is responsible for the damage to my vehicle. Took my 2011 Traverse to the dealership that same day. Lights still on, and by the time I got it there the vehicle was shaking terribly, they diagnose it as throttle body codes po221-po121 & po300. They fixed that problem, but took no responsibility gm to take responsibility for this problem. I wanted a safe vehicle for myself and my family, now I am not sure if it is safe even with the repairs that were done.

Driving on highway at 60 mph. Reduce power light and stability control light came on. Traverse slowed down to 20 mph. I could not accelerate. I was almost rear ended on the highway. Brought the Traverse to the dealership where they replaced the throttle body. Time for a recall.

Use remote starter. After a few minutes of warming up unlocked and entered vehicle. Once key turned to on doors started to lock and unlock. Put car in reverse barely moved. Tried drive and would not move? check engine light, stability track lights are on. Not good when you need to get to work.

Vehicle was 2011 chevy Traverse w/ awd with history (four instances) of engine oil leeks/requiring engine removal and reinstall. Vehicle was on interstate when awd/vehicle stability control lights went on. Dic indicated 'service stabiltrack', 'service awd' and 'awd disabled'. At that time, vehicle was 'chugging' but shortly after chugging got much worse to the extent that the vehicle could not accelerate or maintain speed at cruise, or without cruise up normal hills on an interstate. When gas pedal was pressed further, rpm/speed would increase but then drop sharply (500-1000rpm) multiple times and no further power could be applied. Vehicle slowed down to about 50mph at the top of a hill. Happened for the next 15-20 miles until it could be pulled over. Vehicle was taken in once right after original occurrence, all three lights had gone off at point and vehicle drove normally after that. Service center indicated a wheel censor (front right) was reading defective information. They cleaned 'dust' from the sensor. Happened again about two weeks later, similar circumstances/results. Service center indicated wheel sensor was bad, they replaced (at my cost) and had no further instances for about four months. Similar situation happened again today (7/19/2014, conditions and results). However, the engine chugging was much worse and vehicle could not be driven safely on the interstate, would not accelerate or maintain safe interstate speed.