Toyota Yaris Sedan 2008 Quick Reference Manual page 321

If you have a flat front tire on a road covered with snow or ice
n
Install the compact spare tire on the rear of the vehicle. Perform the fol-
lowing steps and fit tire chains to the front tires.
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of
the vehicle.
Fit tire chains to the front tires.
5-2. Steps to take in an emergency
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