LEXUS RX400H 2008 Owners Manual

Vehicle specifications6
429
RX400h_U
6-1. Specifications................. 430Maintenance data (fuel, oil level, etc.) .............. 430
Fuel information ..................... 442
Tire section names................. 445
6-2. Customization................ 458 Customizable features ........ 458
6-3. Initialization ................... 462 Items to initialize .................... 462

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)

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6-1. Specifications
6
Vehicle specifications
RX400h_U
Vehicle identification■ Vehicle identification number
The vehicle identification number (VIN) is the legal identifier for your
vehicle. This is the primary identification number for your Lexus. It is
used in registering the ownership of your vehicle.
This number is stamped on the top left of the instrument panel and under
the front passenger’s seat (on some models). This number is also on the Certifi-
cation Label.

432
6-1. Specifications
RX400h_U■
Gasoline engine number and electr ic motor (traction motor) num-
ber
The gasoline engine number and tr action motor number are stamped
as shown.
Gasoline engine number
Electric motor (traction motor)
number
Engine
Model3MZ-FE
Ty p e6-cylinder V type,
4-cycle, gasoline
Bore and stroke3.62 × 3.27 in.
(92 × 83 mm)
Displacement202.1 cu.in.
(3311 cm3)
Drive belt tensionAutomatic adjustment
Valve clearance (engine cold)
Intake:
0.006 
0.010 in. (0.15  0.25 mm)
Exhaust:
0.010 
0.014 in. (0.25  0.35 mm)

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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

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6-1. Specifications
RX400h_U
Lubrication system
Oil viscosity
● The 0W portion of the oil viscosity rating indicates the characteristic of
the oil which allows cold startability. Oils with a lower value before the W
allow for easier starting of the engine in cold weather.
● The 20 in 0W-20 indicates the oil viscosity when the oil is at its operating
temperature. An oil with a higher viscosity may be better suited if the
vehicle is operated at high speeds, or under extreme load condition.
Oil capacity
drain and refill
(reference)
Wi th f il ter5.0 qt. (4.7 L, 4.1 lmp.qt.)
Without filter4.8 qt. (4.5 L, 4.0 lmp.qt.)
Oil gradeILSAC multi-grade engine oil
Recommended oil
viscosity
Use Lexus approved “Toyota Genuine Motor Oil” or
equivalent to satisfy the grade and viscosity shown
below.
0W-20 is an oil that provides optimal levels of fuel
efficiency.
Outside temperature

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Vehicle specifications
RX400h_U
Cooling system
Ignition system
Capacity
Gasoline engine
power control unit10.9 qt. (10.3 L, 9.0 Imp.qt.)
3.6 qt. (3.4 L, 3.0 Imp.qt.)
Coolant type
Use either of the following.• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life organic acid technology
Do not use plain water alone.
Spark plug
Make
DENSO
NGK
Gap
SK20R11
IFR6A11
0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning the gasoline
engine.

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6-1. Specifications
RX400h_U
Electrical system
12-volt battery
Open voltage at
68°F (20 °C):12.6  12.8 V Fully charged
12.2 
12.4 V Half charged
11.8 
12.0 V Discharged
(Voltage checked 20 minutes after the
key is removed from the engine switch
with all the lights turned off)
Charging rates5 A max.

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Tr a n s a x l e
Fluid capacity
Drain and refill
Front
Without towing package
With towing package
Rear (AWD models only)
3.9 qt. (3.7L, 3.2 Imp. qt.)
4.1 qt. (3.9 L, 3.4 Imp. qt.)
1.8 qt. (1.7 L, 1.5 Imp. qt.)
The fluid capacity is a reference quantity. If
replacement is necessary, contact your Lexus
dealer.
Fluid typeTo y o t a G e n u i n e AT F W S
NOTICE
■Transaxle fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterio-
ration in shift quality, locking up of your transmission accompanied by vibration, and
ultimately damage the transmission of your vehicle.

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6-1. Specifications
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Brakes
*1: Minimum pedal clearance when depressed with a force of 112 lbf (500 N, 51
kgf) while the hybrid system is running.
*2: Parking brake pedal travel when depressed with a force of 67 lbf (300 N, 31kgf).
Pe d a l c l e a r a n c e *13.5 in. (90 mm) Min.
Pedal free play0.039  0.079 in. ( 1  2 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Parking brake pedal travel *25  7 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3