Lexus GS 450h 2008 Owner's Manual page 524

5-2. Steps to take in an emergency
Installing the spare tire
STEP 1
STEP 2
STEP 3
522
Remove any dirt or foreign matter
from the wheel contact surface.
Install the spare tire and loosely
Tapered portion
tighten each wheel nut by hand to
approximately the same amount.
Disc wheel
sheet
Lower the vehicle.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is in
motion, and the tire may come off
the vehicle.
Tighten the wheel nuts until the
tapered portion comes into loose
contact with the disc wheel sheet.