2011 Toyota Sienna Owners Manual - Page 790

5-2. Steps to take in an emergency Replacing a flat tire STEP 1 Chock the tires. Flat tire Front Left-hand side Right-hand side Left-hand side Right-hand side Wheel chock positions Behind the rear right-hand side tire Behind the rear left-hand side tire In front of the front right-hand side tire In front of the front left-hand side tire Rear STEP 2 Slightly loosen the wheel nuts (one turn). 5 When trouble arises 701