3777-2. Steps to take in an emergency
7
When trouble arises
1Remove any dirt or foreign matter 
from the wheel contact surface.
If foreign matter is on the wheel contact 
surface, the wheel nuts may loosen while 
the vehicle is in motion, causing the tire to come off.
2Install the spare tire and loosely 
tighten each wheel nut by hand by 
approximately the same amount.
Tighten the wheel nuts until the tapered 
portion   comes into loose contact with 
the disc wheel seat  .
3Lower the vehicle.
4
Firmly tighten each wheel nut two 
or three times in the order shown in 
the illustration.
Tightening torque:
WARNING
●Failure to follow these precautions 
could cause the wheel nuts to loosen 
and the tire to fall of f, resulting in death 
or serious injury.
• Never use oil or grease on the wheel  bolts or wheel nuts.
Oil and grease may cause the wheel 
nuts to be excessively tightened, lead-
ing to bolt or disc wheel damage. In 
addition, the oil or grease can cause 
the wheel nuts to loosen and the wheel 
may fall off, causing a serious accident.
Remove any oil or grease from the 
wheel bolts or wheel nuts.
• Have the wheel nuts tightened with a  torque wrench to 76 ft•lbf (103 N•m, 
10.5 kgf•m) as soon as possible after 
changing wheels.
• When installing a tire, only use wheel  nuts that have been specifically 
designed for that wheel.
• If there are any cracks or deformations  in the bolt screws, nut threads or bolt 
holes of the wheel, have the vehicle 
inspected by your  Lexus dealer.
• Do not attach a heavily damaged  wheel ornament, as it may fly off the 
wheel while the vehicle is moving.
Installing the spare tire
A
B