2012 Chevrolet Colorado Owner's Manual - Page 322

10-72 Crew Cab Vehicle Care 3. Turn the wing nut counterclockwise to remove the wheel blocks and the wheel block retainer. Use the jack handle extensions and the wheel wrench to remove the underbody-mounted spare tire. For crew cab models, the jack and wheel blocks are located under the driver side rear seat. 1. Reach under the rear seat to access the jack and wheel blocks. A. Jack Handle Extensions B. Jack C. Jack Handle D. Wheel Wrench E. Wheel Blocks 2. Turn the jack knob counterclockwise to lower the jack all the way and release it from the bracket.