Lexus 2013 GS 350 Owner's Manual page 704

7-2. Steps to take in an emergency
Installing the spare tire
Remove any dirt or foreign mat-
1
ter from the wheel contact sur-
face.
If foreign matter is on the wheel con-
tact surface, the wheel nuts may
loosen while the vehicle is in motion,
causing the tire to come off.
Install the spare tire and loosely tighten each wheel nut by hand by
2
approximately the same amount.
When replacing an aluminum
wheel with a steel wheel, tighten
the wheel nuts until the tapered
portion comes into loose contact
with the disc wheel seat.
When replacing an aluminum
wheel with an aluminum wheel,
turn the wheel nuts until the
washers come into contact with
the disc wheel.
GS350_U (OM30C34U)
I n f o r ma t i o n P r o v i d e d b y :
Tapered portion
Disc wheel
seat
Disc wheel
Washer