2010 Tahoe

[ah10483]

The "reduce engine power" and the check engine light came on on my Tahoe about two weeks ago. I hooked it up to find out what was going on and it was something to do with the throttle body or something P2135. Two days later, the lights went off and the car drove fine. This morning, my wife went out to warm it up and when she went back out to go to work, when she put it in reverse, it revved up and shot backwards. Then, the reduce engine power, traction control light and the check engine light came on. She said the thing was acting all crazy so she pulled back into the garage. About 10 minutes later she went back out to try it again and it ran fine, but all of the lights are still on. Any idea what might be causing this? It's only got 60k miles on it.

 

[tsench]

still under powertrain warranty take it to dealer need to replace throttle body and program ECM

 

[ah10483]

still under powertrain warranty take it to dealer need to replace throttle body and program ECM

Thanks