2008 LEXUS RX400H inflation pressure

TABLE OF CONTENTSIndex
RX400h_U
4
Using the DVD player (MP3 discs) ................................. 249
Using the video mode ................. 251
Changing the initial setting ...... 253
3-4. Using the interior lights .......... 260 Interior lights list........................... 260
• Interior lights ............................... 263
• Personal lights ............................ 264
3-5. Using the storage features .... 265 List of storage features............... 265
• Glove box..................................... 265
• Console boxes ........................... 266
• Coin holder................................. 268
• Overhead console.................... 269
• Cup holders................................. 269
• Door pockets ............................... 271
3-6. Other interior features........... 272 Sun visors......................................... 272
Vanity mirror .................................. 273
Clock ................................................. 274
Outside temperature display ............................................ 275
Multi-display light control ......... 276
Power outlets ................................. 277
Seat heaters ................................... 280
Armrest ............................................ 282
Floor mat......................................... 283
Luggage compartment features......................................... 284
Garage door opener.................. 287
Compass.......................................... 292 4-1. Maintenance and care............ 298
Cleaning and protecting the vehicle exterior ......................... 298
Cleaning and protecting the vehicle interior............................. 301
4-2. Maintenance............................. 304 Maintenance requirements .... 304
General maintenance ............... 306
Emission inspection and maintenance (I/M)
programs ..................................... 309
4-3. Do-it-yourself maintenance ... 310 Do-it-yourself service precautions ................................... 310
Hood................................................... 313
Positioning a floor jack................ 314
Engine compartment................... 316
Tires .................................................... 331
Tire inflation pressure................ 340
Wheels.............................................. 344
Air conditioning filter.................. 346
Wireless remote control battery ........................................... 348
Rear seat entertainment system controller...................... 350
Checking and replacing fuses ................................................ 352
4Maintenance and care

7
Tires
●Rotation
● Replacement
● Inflation pressure
● Information
P. 331
P. 408
P. 439
P. 445
Tail lights P. 148
Side marker lights P. 148
Back door P. 44
Rear window defogger P. 204
Side doors P. 39
Fuel filler door P. 78
Turn signal lights P. 136
License plate lights P. 148
Rear window wiper P. 155
Roof luggage carrier ∗ P. 70
∗: If equipped

182
2-5. Driving information
RX400h_U
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■Pre-winter preparations
● Use fluids that are appropriate to the prevailing outside tempera-
tures.
• Engine oil
• Engine/power control unit coolant
• Washer fluid
• Have a service technician inspect the level and specific gravity
of battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the front tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
●Tire pressure falls in winter as the outside temperature falls. Add
2.9 to 4.3 psi (20 to 30 kPa, 0.2 to 0.3 kgf/cm2 or bar) to the
standard tire inflation pressure.

Maintenance and care4
297
RX400h_U
4-1. Maintenance and care ............................... 298
Cleaning and protecting the vehicle exterior............ 298
Cleaning and protecting the vehicle interior ............... 301
4-2. Maintenance .................. 304 Maintenance requirements ....................... 304
General maintenance .......... 306
Emission inspection and maintenance (I/M)
programs............................... 309 4-3. Do-it-yourself
maintenance ................. 310
Do-it-yourself service precautions ............................ 310
Hood ........................................... 313
Positioning a floor jack .......... 314
Engine compartment ............ 316
Tires............................................. 331
Tire inflation pressure........... 340
Wheels ...................................... 344
Air conditioning filter ........... 346
Wireless remote control battery .................................... 348
Rear seat entertainment system controller ................ 350
Checking and replacing fuses ........................................ 352
Headlight aim (vehicles with discharge
headlights) ............................ 364
Light bulbs................................ 365

308
4-2. Maintenance
RX400h_U
Vehicle exterior
ItemsCheck points
Steering wheel
• Moves smoothly?
• Has correct free play?
• No strange noises?
ItemsCheck points
Door• Operate smoothly?
Engine hood• The lock system works properly?
Fluid leaks• Is there any leakage after parking?
Ti r e
• Inflation pressure is correct?
• Tire surfaces not worn or dam-aged?
• Tires rotated according to the maintenance schedule?
• Wheel nuts are not loose?
CAUTION
■If the hybrid system is running
Turn the hybrid system off and ensure that there is adequate ventilation before per-
forming maintenance checks.

311
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U
ItemsParts and tools
Engine oil level (→P. 3 1 8 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→ P. 3 5 2 )• Fuse with same amperage rating as
original
Headlight aim ( →P. 364)• Phillips-head screwdriver
Radiator and condenser (→P. 3 2 5 )
Tire inflation pressure ( →P. 3 4 0 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 3 2 9 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

331
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U
Tires
Replace or rotate tires in accordance with maintenance schedules and
treadwear.
■Checking tires
New tread
Treadwear indicator
Worn tread
The location of treadwear indi-
cators is shown by the “TWI” or
“∆ ” marks, etc., molded on the
sidewall of each tire.
Check spare tire condition and
inflation pressure if not rotated.
■ Tire rotation
Rotate the tires in the order
shown.
To equalize tire wear and extend
tire life, Lexus recommends that
tire rotation is carried out at the
same interval as tire inspection.
■The tire pressure warning system
Your Lexus is equipped with a tire pressure warning system that uses
tire pressure warning valves and transmitters to detect low tire infla-
tion pressure before serious problems arise. ( →P. 391, 398)
Front

332
4-3. Do-it-yourself maintenance
RX400h_U
Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and trans-
mitters must also be installed.
When new tire pressure warning valves and transmitters are installed,
new tire pressure warning valve and transmitter ID codes must be regis-
tered in the tire pressure warning computer and tire pressure warning
system must be initialized. Have tire pressure warning valve and transmit-
ter ID codes registered by your Lexus dealer. ( →P. 3 3 4 )
Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the following
circumstances:
● When changing the tire inflation pressure by changing traveling
speed.
● When changing the tire size.
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the pressure benchmark.