Lexus RX330 2005 Owner's Manual page 526

To remove the spare tire:
Remove the inside spare tire cover by turning it
1
counterclockwise.
If it is difficult to remove the inside spare tire cover,
remove the cover after pulling out the spare tire and
stand it up against the bumper.
IN CASE OF AN EMERGENCY
In the luggage compartment, open the right side
2
auxiliary box by pushing the button. You will find
the spare tire clamp bolt on the right side of the
auxiliary box.
Remove the cover using a flat−bladed screwdriver
3
which is wrapped with a cloth.
505