Lexus GX470 2005 Pictorial Index / LEXUS 2005 GX470 OWNER'S MANUAL (OM60B11U)

SECTION 4
490
IN CASE OF AN EMERGENCY
In case of an emergency
If your engine stalls while driving491
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If your vehicle will not start 491
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If you cannot increase engine speed 496
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If your vehicle overheats 496
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If you have a flat tire 497
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If your vehicle becomes stuck 515
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If your vehicle needs to be towed 517
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If you cannot shift automatic transmission selector lever 524
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If you lose your keys or lock yourself out 525
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IN CASE OF AN EMERGENCY
491
IF YOUR ENGINE STALLS WHILEDRIVING
If your engine stalls while driving...
1. Reduce your speed gradually, keeping a straight line. Move
cautiously off the road to a safe place.
2. Turn on your emergency flashers.
3. Turn the ignition key to ªACCº or ªLOCKº, and try starting the
engine again.
If the engine will not start, see ªIf your vehicle will not startº\
.
CAUTION
If the engine is not running, the power assist for the
brakes and steering will not work, so steering and
braking will be much harder than usual.
IF YOUR VEHICLE WILL NOT START
(a) Simple checks
Before making these checks, make sure you have followed the
correct starting procedure instructions in ªHow to start the
engineº on page 401 and that you have sufficient fuel. Since
your vehicle is equipped with the engine immobilizer system,
also check whether the other keys w ill start the engine. If they
work, your key may be broken. Have the key checked at your
Lexus dealer. If none of your keys work, there may be a
malfunction in the i mmobilizer system. Call your Lexus dealer.
See ªKeysº on page 8.
If the engine is not turning over or is turning over too
slowly Ð
1. Check that the battery terminals are tight and clean.
2. If the battery terminals are O.K., switch on the interior light.
3. If the light is out, dim or goes out when the starter is cranked,
the battery is discharged. You may try jump starting. See ª(c)
Jump startingº for further instruction.
If the light is O.K., but the engine still will not start, it needs
adjustment or repair. Call a Lexus dealer, Roadside
Assistance or Customer Service Assistance. (See
ªForewordº.)

IN CASE OF AN EMERGENCY
492
NOTICE
Do not pull± or push±start the vehicle. It may damagethe vehicle or cause a collision when the engine starts.Also the three±way catalytic converter may overheatand become a fire hazard.
If the engine turns over at its normal speed but will not
start Ð
1. Turn the ignition key to ªACCº or ªLOCKº and try starting the
engine again.
2. The engine may be flooded because of repeated cranking.
See ª(b) Starting a flooded engineº for further instructions.
3. If the engine still will not start, it needs adjustment or repair.
Call a Lexus dealer, Roadside Assistance or Customer Service
Assistance. (See ªForewordº.)(b) Starting a flooded engine
If the engine will not start, your engine may be flooded
because of repeated cranking.
If this happens, turn the ignition key to ªSTARTº with the
accelerator pedal fully depressed, and hold the key at this
position for about 30 seconds. Then the cranking hold function
stops cranking automatically, and you can try starting the
engine with your foot off the accelerator pedal.
If the engine does not start, wait a few minutes and try again.
If the engine still will not start, it needs adjustment or repair.
Call a Lexus dealer, Roadside Assistance or Customer Service
Assistance. (See ªForewordº.)
(c) Jump starting
To avoid serious personal injury and damage to your
vehicle which might result from battery explosion, acid
burns, electrical burns, or damaged electronic
components, these instructions must be followed
precisely.

IN CASE OF AN EMERGENCY
493
If you are unsure about how to follow this procedure, we
strongly recommend that you seek help from your Lexus
dealer,
Roadside Assistance or Customer Service Assistance.
(See ªForewordº.)
CAUTION
 Batteries contain sulfuric acid which is poisonous
and corrosive. Wear protective safety glasses when
jump starting, and avoid spilling acid on your skin,
clothing, or vehicle.
 If you should accidentally get acid on yourself or in
your eyes, remove any contaminated clothing and
flush the affected area with water immediately. Then
get immediate medical attention. If possible,
continue to apply water with a sponge or cloth while
en route to the medical office.
 The gas normally produced by a battery will explode
if a flame or spark is brought near. Use only
standardized jumper cables and do not smoke or
light a match while jump starting.
NOTICE
The battery used for boosting must be 12 V. Do not jump
start unless you are sure that the booster battery iscorrect.

IN CASE OF AN EMERGENCY
494
40PY054

5Discharged battery
6Booster battery
JUMP STARTING PROCEDURE
1. If the booster battery is installed in another vehicle, make
sure the vehicles are not touching. Turn off all unnecessary
lights and accessories.
When boosting, use the battery of matching or higher quality.
Any other battery may be difficult to jump start with.
If jump starting is difficult, charge the battery for several
minutes.
2. If required, remove all the vent plugs from the booster
battery. Lay a cloth over the open vents on the booster battery.
(This helps reduce the explosion hazard, personal injuries and
burns.)
If the booster battery is an extended maintenance interval
battery, it is not necessary to remove the vent plugs.
3. If the engine in the vehicle with the booster battery is not
running, start it and let it run for about 5 minutes. During jump
starting, run the engine at about 2000 rpm with the accelerator
pedal lightly depressed.
4. Locate positive (+) and negative (±) terminals of each
battery. Connect the jumper cables in the exact order (
1 23 4) shown in the illustration.
1Connect a positive (red) jumper cable clamp to the
positive (+) terminal of the discharged battery.
2Connect the clamp at the other end of the positive (red)
cable to the positive (+) terminal of the booster battery.
3Connect a negative (black) cable clamp to the negative
(±) terminal of the booster battery.

IN CASE OF AN EMERGENCY
495
4Connect the clamp at the other end of the negative (black)
cable to a solid, stationary, unpainted metallic point (e.g.
engine hanger) away from the battery. Do not connect it
to or near any part that moves when the engine is
cranked.
CAUTION
When making the connections, to avoid serious injury,
do not lean over the battery or accidentally let the
jumper cables or clamps touch anything except the
correct battery terminals or the ground.
5. Charge the discharged battery with the jumper cables
connected for approximately 5 minutes. At this time, run the
engine in the vehicle with the booster battery at about 2000 rpm
with the accelerator pedal lightly depressed.
6. Start your engine in the normal way. After starting, run it at
about 2000 rpm for several minutes with the accelerator pedal
lightly depressed.
7. Carefully disconnect the cables in the exact reverse order:
the negative cable and then the positive cable.
8. Carefully di spose of the battery cover cloths which may now
contain sulfuric acid.
9. If removed, replace all the battery vent plugs.
If the cause of your battery discharging is not apparent (for
example, lights left on), you should have it checked at your
Lexus dealer. If the first start attempt is not successful...
Check
that the clamp on the jumper cables are tight. Recharge
the discharged battery with the jumper cables connected for
several minutes and restart your engine in the normal way.
If the another attempt is not successful, the battery may be
depleted. Have it checked at your Lexus dealer.

IN CASE OF AN EMERGENCY
496
IF YOU CANNOT INCREASEENGINE SPEED
If engine speed does not increase when the accelerator pedal
is depressed, there may be a problem somewhere in the
electronic throttle control system.
At this time, vibration may occur. However, if you depress the
accelerator pedal more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle checked by your
Lexus dealer as soon as possible.
Even if the abnormality of the electronic throttle control system
is corrected during low speed driving, the system may not be
recovered until the engine is stopped and the ignition key is
turned to ªACCº or ªLOCKº position.
CAUTION
Be especially careful to prevent erroneous pedal
operation.
IF YOUR VEHICLE OVERHEATS
If your engine coolant temperature gauge indicates
overheating, if you experience a loss of power, or if you
hear a loud knocking or pinging noise, the engine has
probably overheated.
When the engine overheats
Pull safely off the road, stop the vehicle and turn on your
emergency flashers. Put the transmission in ªPº and apply the
parking brake.
A: If steam is coming from your engine:
Turn off the engine. Leave the hood closed until there is no sign
of steam or coolant. Your engine could have been seriously
damaged already. Call your Lexus dealer for assistance.
CAUTION
To help avoid personal injury, keep the hood closed until
there is no steam. Escaping steam or coolant is sign of
very high pressure.

IN CASE OF AN EMERGENCY
497
B: If no steam is coming from your engine:
Leave the engine running and turn off the air conditioning.
Check the following.

Is the cooling fan operating?
 Is the coolant in the acceptable range?
 Is the engine drive belt O.K.?
CAUTION
When the engine is running, keep hands and clothing
away from the moving fan and engine drive belt.
 Do not attempt to remove the radiator cap when the
engine and radiator are hot. Serious injury could
result from scalding hot fluid and steam blown out
under pressure.
If the cooling fan is not operating or the coolant is not in the
acceptable range, turn off the engine and call your Lexus
dealer.
If both conditions are O.K., after the engine coolant
temperature has cooled to normal, continue driving your
vehicle.
If the engine coolant temperature does not cool down, or your
vehicle overheats again, have it checked as soon as possible
by your Lexus dealer.
IF YOU HAVE A FLAT TIRE
1. Reduce your speed gradually, keeping a straight
line. Move cautiously off the road to a safe place
Ð well away from the traffic. Avoid stopping on the
center divider of a highway. Park on a level spot with
firm ground.
2. Stop the engine and turn on your emergency
flashers.
3. F i r m l y s e t t h e p a r k i n g b r a k e a n d p u t t h e
transmission in ªPº.
4. Have everyone get out of the vehicle on the side
away from traffic.
5. Read the following instructions thoroughly.
CAUTION
When jacking, be sure to observe the following
to reduce the possibility of personal injury:
Turn off the active height control suspension
by pushing the active height control switch.
 Follow jacking instructions.

IN CASE OF AN EMERGENCY
498
Do not put any part of your body under a
vehicle supported by a jack. Personal injury
may occur.
 Do not start or run the engine while your
vehicle is supported by the jack.
 Stop the vehicle on a level firm ground, firmly
set the parking brake and put the
transmission in ªPº. Block the wheel
diagonally opposite to the one being changed
if necessary.
 Make sure to set the jack properly in the jack
point. Raising the vehicle with jack
improperly positioned will damage the vehicle
or may allow the vehicle to fall off the jack
and cause personal injury.
 Never get under the vehicle when the vehicle
is supported by the jack alone.
 Use the jack only for lifting your vehicle
during wheel changing.
 Do not raise the vehicle with someone in the
vehicle.
When raising the vehicle, do not place any
objects on top of or underneath the jack.
 Raise the vehicle only high enough to remove
and change the tire.

IN CASE OF AN EMERGENCY
499
NOTICE
Do not continue driving with a deflated tire.Driving even a short distance can damage a
tire and wheel beyond repair.
When jacking up or installing tire chains, besure to turn off the rear height control airsuspension with the ªHEIGHT CONTROL
OFFº switch and stop the engine. Otherwise,the vehicle height may change because of the
automatic leveling function resulting inaccident.