Lexus 2003 SC430 Owner's Manual page 265

IN CASE OF AN EMERGENCY
40sa36
8. Lower the vehicle completely and tighten the wheel
nuts.
Turn the jack handle counterclockwise to lower the vehicle.
Use only the wheel nut wrench to tighten the nuts. Do not use
other tools or any additional leverage other than your hands,
such as a hammer, pipe or your foot. Make sure the wrench
is securely engaged over the nut.
Tighten each nut a little at a time in the order shown. Repeat
the process until all the nuts are tight.
248
CAUTION
D When lowering the vehicle, make sure all portions of
your body and all other persons around will not be
injured as the vehicle is lowered to the ground.
D Have the wheel nuts tightened with torque wrench to
103 N·m (10.5 kgf·m, 76 ft·lbf.), as soon as possible
after changing wheels. Otherwise, the nuts may
loosen and the wheels may fall off, which could cause
a serious accident.