2007 LEXUS LX470 engine overheat

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5-2. Steps to take in an emergency .............................. 337
If a warning light turns on or a warning buzzer sounds...
............. 337
If you have a flat tire..................... 346
If the engine will not start .......... 357
If the shift lever cannot be shifted from P ............................. 358
If you lose your keys .................... 359
If the battery is discharged ...... 360
If your vehicle overheats ........... 363
If the vehicle becomes stuck................................................ 366
6-1. Specifications............................ 368 Maintenance data ....................... 368
Fuel information ............................ 378
Tire information.............................. 381
6-2. Customization .......................... 389 Customizable features ............. 389
6-3. Initialization ............................... 393 Items to initialize ........................... 393
Reporting safety defects for U.S.A. owners ............................. 396 Alphabetical index................... 398
What to do if............................... 406
6Vehicle specifications
7For US owners
Index

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2-1. Driving procedures
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When driving
CAUTION
■When driving the vehicle
●Use engine braking (downshift) to maintain a safe speed when driving down a
steep hill.
Using the brakes continuously may cause the brakes to overheat and lose effec-
tiveness. (P. 9 9 )
●When stopped on an inclined surface, use the brake pedal and parking brake to
prevent the vehicle from rolling backward or forward and causing an accident.
●Be careful when driving on slippery surfaces, as the vehicle may spin or skid when
downshifting, rapidly accelerating, braking or turning.
●Do not adjust the position of the steering wheel, the seat, or the inside or outside
rear view mirrors while driving.
Doing so may result in a loss of vehicle control that can cause accidents that may
result in death or serious injury.
●Always check that all passengers' arms, heads or other parts of their bodies are
not outside the vehicle, as this may result in death or serious injury.
●Do not drive in excess of the speed limit. Even if the legal speed limit permits it, do
not drive over 85 mph (140 km/h) unless your vehicle has high-speed capability
tires. Driving over 85 mph (140 km/h) may result in tire failure, loss of control and
possible injury. Be sure to consult a tire dealer to determine whether the tires on
your vehicle are high-speed capability tires or not before driving at such speeds.
●If you drive through deep water over ab out 500 mm (20 in.) in depth, put the
vehicle height in the HI (High) mode with the active height select switch and then
turn off the active height control suspension by pushing the height control switch.
Drive your vehicle at 30 km/h (19 mph) or lower speed.

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2-1. Driving procedures
2
When driving
CAUTION
■When taking a nap in the vehicle
Always turn the engine off.
Otherwise, you may accidentally move the shift lever or press the accelerator
pedal, which could cause an accident or fire due to abnormal engine overheating.
Additionally, if the vehicle is parked in a poorly ventilated area, exhaust fumes may
enter the vehicle and cause gas poisoning.
■When braking the vehicle
●When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and may cause one side of
the vehicle to brake differently than the other side. Also the parking brake may
not securely hold the vehicle.
●If the brake assist function does not operate, do not follow other vehicles closely
and avoid downhill or sharp turns that require braking.
In this case, braking is still possible, but it will require more force on the pedal than
usual. Braking distance may also increase.
●Do not pump the brake pedal if the engine stalls.
Each push on the pedal uses up your reserved brake fluid pressure.
●The brake system consists of 2 individual hydraulic systems: if one of the systems
fails, the other will still operate. In this case, the brake pedal should be depressed
more firmly than usual and braking distance becomes longer.
Do not drive your vehicle with only a single brake system. Have your brakes fixed
immediately.

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2-2. Instrument cluster
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indi-
cates the maximum engine speed.
●The engine may be overheating if the engine coolant temperature gauge is in the
red zone (“H”). In this case, immediately stop the vehicle in a safe place. Check
the engine after it has cooled completely. ( P. 363)
■While driving
●When the voltmeter indicates more than 19 V or less than 9 V, the battery may be
malfunctioning. Have your vehicle checked at your Lexus dealer.
●When the engine oil pressure gauge do es not work properly, immediately stop
the engine and contact your Lexus dealer.

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2-5. Driving information
●Due to the added load of the trailer, your vehicle’s engine may overheat
on hot days (at temperatures over 85
F[30C] when driving up a long
or steep grade. If the engine coolant temperature gauge indicates
overheating, immediately turn off th e air conditioning (if in use), pull
your vehicle off the road and stop in a safe spot. (
P. 363)
● Always place wheel blocks under both the vehicle and the trailer
wheels when parking. Apply the pa rking brake firmly, and put the
transmission in P. Avoid parking on a slope, but if unavoidable, do so
only after performing the following:
Apply the brakes and keep them applied.
Have someone place wheel blocks under both the vehicle and
trailer wheels.
When the wheel blocks are in pl ace, release the brakes slowly
until the blocks absorb the load.
Apply the parking brake firmly.
Shift into “P” and turn off the engine.
● When restarting after parking on a slope:
With the transmission in the “P” position, start the engine. Be sure
to keep the brake pedal pressed.
Shift into 3, 2, 1, or “R” position (if reversing).
Release the parking brake and br ake pedal, and slowly pull or
back away from the wheel blocks. Stop and apply the brakes.
Have someone retrieve the blocks.
STEP1STEP1
STEP2STEP2
STEP1STEP3STEP3
STEP1STEP4
STEP1STEP5STEP5
STEP1STEP1
STEP2STEP2
STEP1STEP3STEP3
STEP1STEP4

When trouble arises5
327
5-1. Essential information............ 328If your vehicle needs to be towed .......................................... 328
If you think something is wrong .......................................... 333
Fuel pump shut off system ..... 334
Event data recorder ................. 335
5-2. Steps to take in an emergency............................ 337
If a warning light turns on or a warning buzzer sounds...
......... 337
If you have a flat tire.................. 346
If the engine will not start ....... 357
If the shift lever cannot be shifted from P........................... 358
If you lose your keys ................. 359
If the battery is discharged .... 360
If your vehicle overheats ........ 363
If the vehicle becomes stuck ............................................ 366

5
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