2008 LEXUS RX400H lock

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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.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U
Hood
CAUTION
■Pre-driving check
Check that the hood is fully closed and locked.
If the hood is not locked properly it may open while the vehicle is in motion and
cause an accident, which may result in death or serious injury.
Release the lock from the inside of the vehicle to open the hood.
Pull the hood release lever.
The hood will pop up slightly.
Lift the hood catch and lift the
hood.
STEP1
STEP2

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4-3. Do-it-yourself maintenance
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Maintenance and care
RX400h_UWipe the dipstick and reinsert it fully.
Low
Full
■ Adding engine oil
If the oil level is below or near the
low level mark, add engine oil of
the same type as already in the
engine.
Make sure to check the oil type and prepare the items needed before
adding oil. Remove the oil filler cap.
Add engine oil slowly, checking the dipstick.
Install the filler cap, turning it clockwise.
It takes about 1.6 qt. (1.5 L, 1.3 lmp. qt.) to raise the oil level from low to full on the
dipstick.
STEP6
Oil gradeILSAC multi-grade engine oil
ItemsClean funnel
STEP1
STEP2
STEP3

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4-3. Do-it-yourself maintenance
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Maintenance and care
RX400h_U
■Engine oil consumption
●The amount of engine oil consumed depends on the oil viscosity, the quality of the
oil and the way the vehicle is driven.
●More oil is consumed under driving conditions such as high speeds and frequent
acceleration and deceleration.
●A new engine consumes more oil.
●When judging the amount of oil consumption, keep in mind that the oil may have
become diluted, making it difficult to judge the true level accurately.
●Oil consumption: Max. 1.1 qt./600 miles, 0.9 lmp.qt./600 miles (1.0 L per 1000
km)
●If you consume more than 1.1 qt. (1.0 L, 0.9 lmp.qt.) every 600 miles (1000 km),
contact your Lexus dealer.
■After changing the engi ne oil (U.S.A. only)
The oil change system should be reset. Perform the following procedures: Switch the display to the odometer. ( →P. 1 4 3 )
Turn the engine switch to the LOCK position.
STEP1
STEP2
While pressing the ODO/TRIP button, turn
the engine switch to the ON position. A mes-
sage MAINT REQD RESET MODE will
appear on the display. To select the system,
hold the button for at least 5 seconds. A mes-
sage COMPLETE will appear and a beep will
sound.STEP3

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4-3. Do-it-yourself maintenance
RX400h_U
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
Turn the engine switch to the LOCK position.
Open the glove box.
Remove the 2 pins installed on
the upper part of the glove box
and lower the glove box.
Remove the filter case.
Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.
The ↑UP marks shown on the
filter and the filter case should
be pointing up.
STEP1
STEP2
STEP3
STEP4

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4-3. Do-it-yourself maintenance
RX400h_U
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and replace the fuses as necessary.
Turn the engine switch to the LOCK position.
Remove the engine compartment cover. ( →P. 317)
Open the fuse box cover.
Engine compartment
Push the tabs in and lift the lid
off.STEP1
STEP2
STEP3

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4-3. Do-it-yourself maintenance
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Maintenance and care
RX400h_U
24RDI FAN NO.240Electric cooling fan
25HAZ15Turn signal lights, emergency flashers
26MPX-B17. 5Electric power steering system
27AM2 NO.130“GAUGE NO.2”, “IGN”, “INJ” and
“ST” fuses
28HORN10Horns
29MAIN40
“H-LP L LWR”, “H-LP L UPR”, “H-LP
R LWR”, “H-LP R UPR” and “DRL”
fuses
30IGCT NO.150
“INV W/P”, “IGCT NO.2”, “IGCT
NO.3”, “IGCT NO.4” and “IGCT
NO.5” fuses
31RADIO NO.115Audio system
32ECU-B NO.17. 5
Theft deterrent system, air condition-
ing system, gauges and meters, moon
roof, multiplex communication system
33DOME7. 5
Personal lights, interior lights, vanity
lights, engine switch light, gauges and
meters, navigation system
34ECU-B NO.27. 5Wireless remote control
35AMP30Audio system
36DOOR NO.1 25Power door lock system
37A/F25Air/fuel control system
38CRT7. 5Navigation system screen, rear seat
entertainment system
39H-LP R LWR15Right-hand headlight (low beam)
40INV W/P15Hybrid system
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
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Maintenance and care
RX400h_U■
Driver’s side instrument panel
FuseAmpereCircuit
47RR DOOR RH20Rear right side power window
48RR DOOR LH20Rear left side power window
49FUEL OPN7. 5Fuel filler door opener
50FR FOG15Front fog lights
51OBD7. 5On-board diagnosis system
52FR DEF25Windshield wiper de-icer and all com-
ponents in “MIR HTR” fuses
53STOP10
Tail lights, high mounted stoplight,
vehicle dynamics integrated manage-
ment, shift lock control system,
multiport fuel injection system/
sequential multiport fuel injection sys-
tem
54TI&TE30Tilt and telescopic steering
55MPX-B7. 5Engine immobilizer system
56AM1 7. 5Starter system