At 130 Miles my 1 day old 2008 GT had 3 lights come on. ABS light TCS OFF light and the little Car TCS light . They all came on at the same time. I parked the car and shut everything off. It did again yesterday while driving. Turned it off came back in an hour and they are off again. I have to get my Lo Jack installed at the dealer so I plan to have them look into it then. Just wondered if anyone has had the same issue.

 

Two words: Speed Sensor. Should throw a DTC code for the Tech. will direct him to one of the front sensor's. Betting on the right front one. Not a biggie. Just don't so a speeding on rain slicked roadways, till fixed. So when you were "Testing" it's responsiveness, did we forget to turn off the TC. It's all warrantee, an every dealership service department probably has a score board on how quick one comes in for this fix.

 

So this seems to be a popular issue with the speed sensor? I will report what was found. Thanks for the response.