5
When trouble arises
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5-2. Steps to take in an emergency
CAUTION
●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.
Failure to follow these precautions could cause the wheel nuts to loosen and the 
tire to fall off, resulting in death or serious injury.
●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.
Failure to follow these precautions could cause the wheel nuts to loosen and the tire 
to fall off, resulting in death or serious injury.
NOTICE
■Do not drive the vehicle with a flat tire
Do not continue driving with a flat tire. 
Driving even a short distance with a flat  tire can damage the tire and the wheel 
beyond repair.
■Be careful when driving over bumps with the compact spare tire installed on the 
vehicle.
The vehicle becomes lower when driving with the compact spare tire compared to 
when driving with standard tires. Be careful when driving over uneven road sur-
faces.
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire. 
Tire chains may damage the vehicle body  and adversely affect driving performance.
■When replacing the tires
When removing or fitting the wheels, tire s or the tire pressure warning valve and 
transmitter, contact your Lexus dealer as the tire pressure warning valve and trans-
mitter may be damaged if  not handled correctly.
■To avoid damage to the tire pressure warning valves and transmitters
Do not use liquid sealants on flat tires.