Toyota FJ CRUISER Owner's Manual page 501

5-2. Steps to take in an emergency
Assembling the jack handle.
Remove the jack handle, jack handle extension bar and jack handle
bar from the tool box and assemble by following these steps.
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Slightly loosen the wheel nuts
(one turn).
Loosen the bolts and the
screw using either the jack
handle or a screwdriver.
Assemble the jack handle
extension bar and the jack
handle bar and tighten the
bolts.
Check that the bolts are firmly
tightened.