Dodge 2012 Durango - Owner Manual - Manual (Page 556)

Rotate the thumb screw on the jack to loosen the assem-
bly and remove the jack from the bracket.
Spare Tire Stowage
The spare tire is stowed under the rear of the vehicle by
means of a cable winch mechanism. To remove or stow
the spare, use the jack handle/lug wrench connected to
the square socket extension to rotate the “spare tire
drive” nut. The nut is located under a plastic cover at the
center-rear of the cargo floor area, just inside the liftgate
opening.
Thumb Screw Location
Spare Tire Location
554 WHAT TO DO IN EMERGENCIES