I put together a sheet of info on some various Crossfire tire issues, including snow tires issues & a comparison of the 155/70-17 donut spare to the stock tires sizes.

I wonder if the 1/2" difference is enough to freak out the traction control, even if you turn off ESP?

Also, since the owner's manual suggests smaller rear tires (as a pair) for the rear axle when you put snow tires on, how sensitive will the traction control really be?

The data sheet is in my user gallery, but the conversion to .jpg made it less than attractive.

So, I put it up on my web hosting account as a .gif and a .pdf.

Crossfire Tire Info Sheet in .gif form

Crossfire Tire Info Sheet in .pdf form