After my test, tcs can be turned off. I cannot post a picture for some reasons...From what I read in these post, you cannot "turn off" the traction control, therefore, TPS is on by default. I've asked my dealer about it and they confirm at 100% that TPS works even if your tire pressure indicator is on. I'll try to turn it off and see if it works, will keep you posted.
Here's the pic: