check engine LEXUS LX470 2007 Owner's Manual

286
4-3. Do-it-yourself maintenance
Power steering fluid■ Fluid level
The fluid level should be within the appropriate range.
Full (when hot)
Add fluid (when hot)
Full (when cold)
Add fluid (when cold)
Hot: Vehicle has been driven arou nd 50 mph (80 km/h) for 20 min-
utes, or slightly longer in frig id temperatures. (Fluid tempera-
ture, 140°F - 175°F [60°C - 80°C]).
Cold: Engine has not been run for about five hours. (Room tempera- ture, 50°F - 85°F [10°C - 30°C]).
■ Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.
Clean all dirt off the reservoir.
Remove the cap by turning it counterclockwise.
Wipe the dipstick clean.
Reinstall and remove the reservoir cap again.
Check the fluid level.
Fluid typeAutomatic transmission fluid DEXRON® II or III
ItemsRag or paper, Clean funnel (only for adding fluid)
STEP1
STEP2
STEP3
STEP4
STEP5

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4-3. Do-it-yourself maintenance
■Checking the fluid level
Check the fluid level under the unloaded condition.
Start the engine and put the vehicle height in the “LO” (Low)
mode and then “N” (Normal) mode.
Turn off the ignition switch about 30 seconds after the “N” (Nor-
mal) mode indicator light comes on.
Make sure the fluid level is between “MAX” and “MIN”.
If the fluid level is lower than “MIN ”, have suspension fluid AHC filled by
your Lexus dealer.
Battery
■ Exterior
Make sure that the battery terminals ar e not corroded and that there are
no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
STEP1
STEP2
STEP3

311
4-3. Do-it-yourself maintenance
4
Maintenance and care
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 ignition key to the “LOCK” position.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid off.
Push the tab in and lift the lid off.STEP1
STEP2

5
When trouble arises
341
5-2. Steps to take in an emergency
*: Driver's seat belt reminder buzzer:
The driver’s seat belt reminder sounds to alert the driver that his or her seat belt
is not fastened. The buzzer sounds for about 4 to 8 seconds, unless the driver
fastens the belt.
Engine oil replacement
reminder light
Illuminates for about 3 sec-
onds and then flashes for
about 12 seconds: Indicates
that the engine oil is scheduled
to be changed.
Check and the engine oil, and
change if necessary.
Comes on and remains on:
Indicates that the engine oil
should be changed.Check and change the engine
oil.

5
When trouble arises
343
5-2. Steps to take in an emergency
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch does not turn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural
air leaks or tire inflation pressure changes caused by temperature. In this case,
adjusting the tire inflation pressure will turn off the warning light.
■If the tire pressure warning system is inoperative
The tire pressure warning system may become inoperative in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmitters are used.
●If the ID code on the tire pressure warning valves and transmitters is not regis-
tered.
●If electronic devices or facilities using similar radio wave frequencies are nearby.
●If a radio set at similar frequencies is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If the tire pressure warning select switch is set to a different tire setting.
●If there is a lot of snow or ice on the vehicle, in particular around the wheels or
wheel housings.
●If non-genuine Lexus wheels are used.
●If tire chains are used.
●If the spare tire is in a location subject to poor radio wave signal reception.
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or higher.
■If the tire pressure warning light blinks
If the tire pressure warning light blinks when the ignition key is turned to the “ON”
position, have it checked by your Lexus dealer.
■Changing the engine oil (U.S.A. only)
Make sure to reset oil change system

354
5-2. Steps to take in an emergency
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or injuries due to the vehicle sud-
denly falling off the jack.
●Do not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do not use other tire jacks for replacing tires
on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Be sure to turn off the active height control suspension and stop the engine.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greate r than that required to replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●Do not put any part of your body under the vehicle supported by a jack.
●Do not start or run the engine while your vehicle is supported by the jack.
Take particular care when lowering the vehicle to ensure that no one working on or
near the vehicle may be injured.
■Using the jack handle
Tighten all the jack handle bolts securely using a Phillips-head screwdriver, to pre-
vent the extension parts from coming apart unexpectedly.

5
When trouble arises
361
5-2. Steps to take in an emergency
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is turned off.
●Turn off any unnecessary electrical compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■When the battery is removed or discharged
The following systems must be initialized.
●Moon roof (P. 4 2 )
●Variable gear ratio steering (P. 144)
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any pa rt other than the intended terminal.
●Do not allow the jumper cables to come into contact with the “+” and “-” termi-
nals.
●Do not allow open flame or use matches, cigarette lighters or smoke near the
battery.
Maintain the engine sp eed of the second vehicle and start your
vehicle’s engine.
Once the vehicle’s engine ha s started, remove the jumper
cables in the exact reverse ord er in which they were con-
nected.
Once the engine starts, have the ve hicle checked at your Lexus dealer
as soon as possible.STEP3
STEP4

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When trouble arises
363
5-2. Steps to take in an emergency
If your vehicle overheats
If your engine overheatsStop the vehicle in a safe place and turn off the automatic air
conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating: Wait until the engine coolant temperature gauge begins to
fall and then stop the engine.
If the fan is not operating: Stop the engine immediately and call your local Lexus
dealer.
After the engine has cooled
down sufficiently, check the
coolant level and inspect the
radiator core (radiator) for any
leaks.
STEP1
STEP2
STEP3
STEP4

364
5-2. Steps to take in an emergency
■Overheating
In the following situations, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone or a loss of power is
experienced.
●Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when in specting under the hood of your vehicle
●Keep hands and clothing away from the fan and engine drive belt while the
engine is running.
●Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam released
under pressure.
Add coolant if required.
Water can be used in an emer-
gency measure if coolant is
unavailable. ( P. 3 7 2 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP5

400
Alphabetical index
Driver's seat belt reminder light .....340
DrivingBreak-in tips ............................................ 89
Correct posture .................................... 52
Off-road precautions ........................146
Procedures ..............................................88
Winter driving tips.............................. 156
Driving position memory ........................21
Emergency, in case of If the engine will not start ............... 357
If the shift lever cannot be shifted from P ...................................358
If the battery is discharged ...........360
If the warning buzzer sounds ...... 337
If the warning light turns on .......... 337
If you have a flat tire ......................... 346
If you lose your keys.........................359
If you think something is wrong ................................................... 333
If your vehicle becomes stuck.....366
If your vehicle needs to be towed ................................................... 328
If your vehicle overheats ................ 363
Engine Compartment ..................................... 276
Hood........................................................ 275
How to start the engine..................... 95
Identification number.......................369
If the engine will not start ............... 357
Ignition switch......................................... 95
Overheating......................................... 363
Engine coolant Capacity ................................................. 372
Checking ............................................... 282 Preparing and checking
before winter...................................... 156
Engine coolant temperature gauge ...................................................... 104
Engine immobilizer system ..................47
Engine oil Capacity .................................................. 371
Checking................................................ 277
Preparing and checking before winter...................................... 156
Engine oil maintenance data ...........280
Event data recorder ............................ 335
First-aid kit holder ................................ 236
Floor mat .................................................. 234
Fluid Brake ....................................................... 284
Power steering ................................... 286
Suspension ............................................287
Washer..................................................... 291
Fog lights Switch .......................................................... 114
Wattage .................................................. 377
For-wheel drive system........................139
Front fog lights Switch .......................................................... 114
Wattage .................................................. 377
Front passenger's seat belt reminder light ..................................... 340
Front seats Adjustment .................................................12
Driving position memory ....................21
Front side marker light Wattage .................................................. 377
Front turn signal lights Wattage .................................................. 377
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