Traction Control Problem?

[MarineHawk]

My wife's 07 H3 Adv. (completely stock) started wigging out on her and left he stranded in the Target parking lot yesterday. She called me, and when I drove it, the only problem I noticed was that, at or near full lock, it appears that the brakes come on strongly. So much so, that you have to gun the vehicle to get it to barely move. My wife thinks it happened at times other than at full lock when she started noticing it. We had it towed to the dealer yesterday, which does not open until tomorrow.

I assume that this a traction control malfunction? Am I correct? Any thoughts?

Thanks in advance.