I am experiencing the same issue with my 2011 Cruze. It's a manual transmission with 90k miles and it's about 20 degrees F here with 6 inches of snow if that makes a difference. I went out to my car Wednesday morning to head to work and made it about 5 minutes before the Service Stabilitrack, Service Traction Control and Reduced Engine Power messages came up. I pulled over and restarted it and the problem persisted so I limped it home and let it sit for the day. I did contact OnStar and had them run the codes and also got the P2135. After doing some research, I replaced the negative battery cable yesterday and checked everything going into the throttle body and then ran it around town a little bit and that seemed to solve the problem. All the lights had turned off and it was running perfectly. But then again this morning when I went out to warm it up before work, it started up fine but by the time it was time to go all the lights and messages had returned. I just bought the car the day after Thanksgiving and am already getting increasingly frustrated. Did you find the source of the problem for your car and what did it take to correct it?