2008 LEXUS RX400H wheel

5
When trouble arises
427
5-2. Steps to take in an emergency
RX400h_U
If the vehicle becomes stuck
CAUTION
■When attempting to free a stuck vehicle
If you choose to rock the vehicle back and forth to free it, make sure the surround-
ing area is clear, to avoid striking other vehicles, objects or persons. The vehicle
may also lunge forward or lunge back suddenly as it becomes free. Use extreme
caution.
■When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may cause an
accident and result in death or serious injury.
NOTICE
■To avoid damaging the transmission and other components
●Avoid spinning the wheels and do not rev the hybrid system.
●If the vehicle remains stuck after trying these procedures, the vehicle may require
towing to be freed.
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt, or snow.
●Stop the hybrid system. Set the parking brake and put the selec-
tor lever in P.
● Remove the mud, snow, or sand from around the stuck tire.
● Place wood, stones or some other material to help provide trac-
tion under the tires.
● Restart the hybrid system.
● Carefully apply the accelerator to free the vehicle.

430
RX400h_U
6-1. Specifications
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
*1: Unladen vehicle
*2: Vehicle without roof rails
*3: Vehicle with roof rails
*4: Vehicle with roof rails and cross rails
Overall length187.2 in. (4755 mm)
Overall width72.6 in. (1845 mm)
Overall height *1
2WD models
66.1 in. (1680 mm) *2
67.7 in. (1720 mm) *3
68.3 in. (1735 mm) *4
AW D m o d e l s
66.3 in. (1685 mm) *2
67.9 in. (1725 mm) *3
68.5 in. (1740 mm) *4
Wheelbase106.9 in. (2715 mm)
Tr e a d
2WD models -Front-Rear62.2 in. (1580 mm)
61.6 in. (1565 mm)
AW D m o d e l s - Fr o n t -Rear62.0 in. (1575 mm)
61.2 in. (1555 mm)
Vehicle capacity weight
(Occupants + luggage)925 lb. (420 kg)
Towing capacity
(Trailer weight + cargo)
Without towing pack-
age2000 lb. (907 kg)
With towing package3500 lb. (1588 kg)

433
6-1. Specifications
6
Vehicle specifications
RX400h_U
Fuel
Front electric motor (traction motor)
Rear electric motor (traction motor with all wheel drive models)
Hybrid battery (traction battery)
Fuel typeUnleaded gasoline only
Octane rating91 (Research octane number 96) or higher
Fuel tank capacity17.2 gal. (65 L, 14.3 lmp.gal)
Ty p ePermanent magnet synchronous motor
Maximum output123 kW
Maximum torque33.9 kgf•m (333 N•m, 245 ft•lbf)
Ty p ePermanent magnet synchronous motor
Maximum output50 kW
Maximum torque13.2 kgf•m (130 N•m, 95 ft•lbf)
Ty p eNickel-Metal hybrid battery
Vo l t a g e9.6 V/m o du le
Capacity6.5 Ah (3HR)
Quantity30 modules
Overall voltage288 V

439
6-1. Specifications
6
Vehicle specifications
RX400h_U
Steering
Tires and wheelsType A
Free playLess than 1.2 in. (30 mm)
Ti r e s i z e225/65R17 101S
Tire inflation pressure
(Recommended cold tire inflation
pressure)
Driving under normal conditions Front:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Rear:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Spare:
32 psi (220 kPa, 2.2 kgf/cm2 or bar)
Driving at high speeds above 100 mph (160
km/h) (in countries where such speeds are per-
mitted by law) Add 1.5 psi (10 kPa, 0.1 kgf/cm
2 or bar) to the
front tires and rear tires. Never exceed the
maximum cold tire inflation pressure indicated
on the tire sidewall.
Wheel size17 × 6 1 /2 J
Wheel nut torque10.5 kgf•m (103 N•m, 76 ft•lbf)

440
6-1. Specifications
RX400h_UTy p e B
Ti r e s i z eP235/55R18 99V
Tire inflation pressure
(Recommended cold tire inflation
pressure)
Driving under normal conditions
Front:
30 psi (210 kPa, 2.1 kgf/cm
2 or bar)
Rear:
30 psi (210 kPa, 2.1 kgf/cm
2 or bar)
Spare:
30 psi (210 kPa, 2.1 kgf/cm
2 or bar)
Wheel size18 × 7 J
Wheel nut torque10.5 kgf•m (103 N•m, 76 ft•lbf)

447
6-1. Specifications
6
Vehicle specifications
RX400h_U
Tire size■ Typical tire si ze information
The illustration indicates typical
tire size.
Ti r e u s e
(P = Passenger car,
T = Temporary use)
Section width (millimeters)
Aspect ratio
(tire height to section width)
Tire construction code
(R = Radial, D = Diagonal)
Wheel diameter (inches)
Load index (2 or 3 digits)
Speed symbol
(alphabet with one letter)

448
6-1. Specifications
RX400h_U■
Tire dimensions
Section width
Ti r e h e i g h t
Wheel diameter
Tire section names
Bead
Sidewall
Shoulder
Tr e a d
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer

450
6-1. Specifications
RX400h_U■
Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and
they represent the tire's ability to stop on wet pavement as measured
under controlled conditions on specified government test surfaces of
asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking
(straight ahead) traction tests and does not include cornering (turning) trac-
tion.
■ Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing
the tire's resistance to the generation of heat and its ability to dissipate
heat when tested under controlled conditions on a specified indoor
laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire fail-
ure.
The grade C corresponds to a level of performance which all passenger car
tires must meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory
test wheel than the minimum required by law.
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.