It is ok to drive the vehicle with the TCS light on if yu do not feel any difference in power or other issues.
Guess you would have to get it to the dealer.
However you can try using a jumper wire across the DLC terminal # 4 and # 9 and turn ignition ON to check if the TCS lights blinks. If yes, count the blinks to get the trouble code.
Wednesday, April 5th, 2017 AT 9:38 AM