Page 502 of 640

5027-3. Do-it-yourself maintenance
RC300h_EE(OM24740E)
Raise the vehicle until the tire is
slightly raised off the ground.
Remove all the wheel nuts and the
tire.
When resting the tire on the ground,
place the tire so that the wheel design faces up to avoid scratching the wheelsurface.
4
5
WARNING
■Replacing a flat tire
●Do not touch the disc wheels or the area around the brakes immediately after thevehicle has been driven.
After the vehicle has been driven the disc wheels and the area around the brakes will be extremely hot. Touching these areas wi th hands, feet or other body parts while changing a tire, etc. may result in burns.
●Failure to follow these precautions could cause the wheel nuts to loosen and the tireto fall off, 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, leading 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 103 N•m (10.5 kgf•m,76 ft•lbf) as soon as possible after changing wheels.
• Do not attach a heavily damaged wheel or nament, as it may fly off the wheel while the vehicle is moving.• 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 holesof the wheel, have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualif ied and equipped professional.
Page 503 of 640
5037-3. Do-it-yourself maintenance
7
Maintenance and care
RC300h_EE(OM24740E)
Remove 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, causingthe tire to come off.
Install the tire and loosely tighten
each wheel nut by hand by approxi-
mately the same amount.
Turn the wheel nuts until the washers come into contact with the disc wheel.
Lower the vehicle.
Firmly tighten each wheel nut two or
three times in the order shown in the
illustration.
Tightening torque: 103 N•m (10.5 kgf•m, 76 ft•lbf)
Stow the jack and all tools.
Installing the tire
1
Disc wheel
Washer
2
3
4
5
Page 604 of 640

6049-1. Specifications
RC300h_EE(OM24740E)
17-inch tires
18-inch tires
19-inch tires
Steering
Free playLess than 30 mm (1.2 in.)
Tires and wheels
Tire size225/50R17 94W
Tire inflation pressure (Recommended cold
tire inflation pressure)
Vehicle speedFront wheel kPa (kgf/cm2 orbar, psi)
Rear wheelkPa (kgf/cm2 orbar, psi)
More than 190 km/h
(118 mph)270 (2.7, 39)270 (2.7, 39)
190 km/h (118 mph) or less240 (2.4, 35)240 (2.4, 35)
Wheel size17 7 1/2J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Tire size235/45R18 94Y
Tire inflation pressure (Recommended cold
tire inflation pressure)
Front wheel kPa (kgf/cm2 or bar, psi)Rear wheelkPa (kgf/cm2 or bar, psi)
240 (2.4, 35)240 (2.4, 35)
Wheel size18 8J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Tire size235/40R19 96Y XL, 265/35R19 94Y
Tire inflation pressure (Recommended coldtire inflation pressure)
Front wheel
kPa (kgf/cm2 or bar, psi)
Rear wheel
kPa (kgf/cm2 or bar, psi)
240 (2.4, 35)250 (2.5, 36)
Wheel size19 8J (235/40R19), 19 9J (265/35R19)
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)