Has anyone had a problem with the traction control system, where car wont move in gear, had to shut system off to be able to drive car? Shut car off and start up again and everything works normally. Took to Chevy and they said bring car in when it does it again so they can check it before I shut it off.  Help anybody.  Jim

The TCS  module connector is causing the problem.  Its located under the dash and will be replaced with a new type of connector.  There was a bulletin sent to the dealers about  this problem but not to owners.

Had the same problem a couple of years ago, dealer replaced connector & hasn't been a problem since. 

 Thanks for the info, Ill contact my dealership and ask if they have the connector.
     Thank you very much  JIM

 You don't happen to know the bulletin number, my dealership seams unresponsive.
 Thank you for your help. Jim

Jim,

   Thanks Pete Ill check it out this morning. Jim

You're welcome, good luck.

Yes, I have had the same problem for 4 plus years, can't seem to correct it.  I obtained SB 06-02-35-002, identified the location of the telescoping steering wheel sensor, purchased the corrective plastic insulator with fingers and locked it into place in the connector block.  This solved the TCS problem for about 1000 miles.  Then it occurred again one month ago.  Had to turn off the ignition and restart the car 5 times before the SW sensor stopped shorting.  I dropped the underdash cover, checked the insert and found it to be still locked in the proper place.  Put the cover back in place and the problem has not happened again in about 200 miles.  But, I know it will re-occur at an inopportune time.   Maybe the only answer is to have the connector block completely replaced. 
What solution has worked for the owners out there?????

I finally bought the connector.  Now to install under the dash.   I don't look forward to crawling under there.

Crawling under the dash is not difficult especially if you move the seat all the way back.  You have to pull down the panel under the steering wheel.  There are 3 or 4 flat headed push buttons.  Just pull them out.  Then the connector is exposed and you can slip in the plastic separator.  Push the panel back up and insert the buttons and you are done. 
The shorting of these contacts is caused by the steering wheel telescoping in and out.  So every time you turn off the engine and restart it they adjust their position and sometimes short and sometimes they don't.  Don't be surprised if the plastic separator doesn't work all the time.  Mine shorted recently after the separator had been in for a while.  I had to stop and start the engine 5 times before the steerlng wheel sensor finally opened the contacts.
The brake lights coming on is a minor matter.  The worst is that the shift lever locks up.  If its in Park, you cannot move the car.  If it is in Drive when the contacts short, you can drive although the engine light and the TCS light is on.  I believe the ABS light could be on also.  So, that system may not be working either.
I have filed a complaint with the USDOT Highway Safety Administration.  An investigator contacted me and asked a lot of Questions.  Haven't heard any results.  His name was Stephen McHenry.
Good Luck!

PS If anyone out there has had brakes locking up because of this problem, you need to let him know.    Stephen.McHenry@dot.gov