lexus LS400 1994 Keys and Doors / 1994 LS400: IN CASE OF AN EMERGENCY

SECTION 4
149
IN CASE OF AN EMERGENCY
If your engine stalls while driving150 . . . . . . . . . . . . . . . . . . . . . . . . . . .
If your vehicle will not start150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If your vehicle overheats152 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If you have a flat tire153 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If your vehicle needs to be towed159 . . . . . . . . . . . . . . . . . . . . . . . . . .
If you cannot shift automatic transmission selector lever163 . . . . . . .
If the moon roof does not close164 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If you lose your keys or lock yourself out165 . . . . . . . . . . . . . . . . . . . .

IN CASE OF AN EMERGENCY
150
IF YOUR ENGINE STALLS
WHILE DRIVING
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. Try starting the engine again.
If the engine will not start, see “If your vehicle will not start”.
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 “How to start the
engine” on page 121 and that you have sufficient fuel.
If the engine is not turning over or is turning over too
slowly —
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 “(c)
Jump starting” for further instructions.
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 “Foreword”.)
If the engine turns over at its normal speed but will not
start —
1. The engine may be flooded because of repeated cranking.
See “(b) Starting a flooded engine” for further instructions.
2. If the engine still will not start, it needs adjustment or repair.
Call a Lexus dealer, Roadside Assistance or Customer
Service Assistance. (See “Foreword”.)
(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 key to “START” with the accelerator
pedal held down. Continue this operation for 15 seconds and
then stop cranking. Then try starting the engine.
If the engine does not start after 15 seconds of cranking,
release the key, 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 “Foreword”.)
NOTICE:
Do not crank for more than 15 seconds at a time. This
may overheat the starter and wiring systems.

IN CASE OF AN EMERGENCY
151
(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.
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 “Foreword”.).
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 for at
least 15 minutes. 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. Therefore, 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 is
correct.
Discharged battery
Engine hanging
hook (ground)Positive terminal
(“+” mark)
Negative terminal
(“−” mark)
Booster batteryConnect cables in the numerical order shown
Disconnect in reverse order after use
Jumper cables
Positive terminal
(“+” mark)
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.

IN CASE OF AN EMERGENCY
1522. 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.)
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 a few minutes. During jumping
run the engine at about 2000 rpm with the accelerator pedal
lightly depressed.
4. Connect the jumper cables in the exact order shown in the
illustration: positive terminal (“+” mark)-to-positive terminal
(“+” mark), and negative terminal (“−” mark)-to-engine or body
ground. Note that you first connect the positive cable to the
discharged battery and then to the booster battery. Next,
connect the negative cable to the booster battery and then to
a solid, stationary, metallic point (e.g.engine hanging hook)
away from the battery. Do not connect it to or near any part that
moves when the engine is cranked.
NOTICE:
When making the connections, 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. Start your engine in the normal way. After starting, run it at
about 2000 rpm for several minutes with the accelerator pedal
lightly depressed.
6. Carefully disconnect the cables in the exact reverse order:
the negative cable and then the positive cable.7. Carefully dispose of the battery cover cloths which may now
contain sulfuric acid.
8. 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.
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. You should follow this procedure ...
1. Pull safely off the road, stop the vehicle and turn on your
emergency flashers. Put the transmission in “P” and apply the
parking brake. Turn off the air conditioning if it is being used.
2. If coolant or steam is boiling out of the radiator or reservoir,
stop the engine. Wait until the steam subsides before opening
the hood. If there is no coolant boiling over or steam, leave the
engine running.
CAUTION:
To help avoid personal injury, keep the hood closed until
there is no steam. Escaping steam or coolant is a sign of
very high pressure.
3. Visually check to see if the engine drive belt is broken or
loose. Look for obvious coolant leaks from the radiator, hoses,
and under the vehicle. However, note that water draining from
the air conditioning is normal if it has been in use.

IN CASE OF AN EMERGENCY
153 CAUTION:
When the engine is running, keep hands and clothing
away from the moving fan and engine drive belt.
4. If the engine drive belt is broken or loose, or the coolant is
leaking, stop the engine immediately. Call a Lexus dealer for
assistance.
5. If the engine drive belt is O.K. and there are no obvious
leaks, you may help the engine cool down more quickly by
running it at about 1500 rpm for a few minutes with the
accelerator pedal lightly depressed.
6. Check the coolant reservoir. If it is dry, add water to the
reservoir while the engine is running. Fill it about half full.
CAUTION:
Do not attempt to remove the reservoir cap when the
engine and radiator are hot. Serious injury could result
from scalding hot fluid and steam blown out under
pressure.
7. After the engine coolant temperature has cooled to normal,
again check the coolant level in the reservoir. If necessary,
bring it up to half full again. Serious coolant loss indicates a
leak in the system. You should 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 − 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. Firmly set the parking brake and put the transmission in “P”.
4. Have everyone get out of the vehicle on the side away from
traffic.
5. Read the following instructions thoroughly.
CAUTION:
When jacking up the vehicle, observe the following to
reduce the possibility of personal injury:

Follow jacking instructions.

Use a jack only for lifting your vehicle during wheel
changing.

Never get beneath the vehicle when supported by a
jack.

Do not start or run the engine while your vehicle is
supported by a jack.

IN CASE OF AN EMERGENCY
1541. For vehicles equipped with the height control system,
turn the Height Control ON / OFF switch to OFF. See page
133.
Tool boxSpare tire
Jack handleJack
2. Get the tool, jack and spare tire.
To prepare yourself for an emergency, you should familiarize
yourself with the use of the jack, each of the tools and their
storage locations.
Expand
(To store)
Contract
(To remove)
Joint
When removing the jack, turn the joint by hand in the
CONTRACT direction until the jack is free. When storing, turn
the joint by hand in the EXPAND direction until the jack is firmly
secured to prevent it from flying forward during a collision or
sudden braking.

IN CASE OF AN EMERGENCY
155
Spare tire
cover
Bolt
To remove the spare tire;
1. Remove the spare tire cover.
2. Loosen the bolt and remove it.
When storing the spare tire, place it with the inner side of the
wheel facing up. Then bolt the tire in place and install the spare
tire cover to prevent the tire from flying forward during a
collision or sudden braking.
Flat tire
Wheel block
3. Block the wheel diagonally opposite the flat tire to keep
the vehicle from rolling when it is jacked up.
When blocking the wheel, place the wheel block in front of the
front wheels or behind the rear wheels.
Paper for protecting
surface
4. Remove the wheel ornament.

IN CASE OF AN EMERGENCY
156Pry off the wheel ornament, using the screwdriver as shown.
To avoid personal injury, do not attempt to pull off the ornament
by hand.
5. Loosen all the wheel nuts.
Always loosen the wheel nuts before raising the vehicle.
The nuts turn counterclockwise to loosen. To get maximum
leverage, fit the wrench to the nut so that the handle is on the
right side, as shown above. Grab the wrench near the end of
the handle and pull up on the handle. Be careful that the
wrench does not slip off the nut.
Do not remove the nuts yet − just unscrew them about one-half
turn.
6. Position the jack at the jack points as shown.
Make sure the jack is positioned on a level and solid surface.
7. After making sure no one is in the vehicle, raise it high
enough so that the spare tire can be installed.

IN CASE OF AN EMERGENCY
157 Allow for the fact that you need more ground clearance when
putting on the spare tire than when removing the flat tire.
To raise the vehicle, insert the jack handle into the jack (it is a
loose fit) and turn it clockwise. As the jack touches the vehicle
and begins to lift, double-check that it is properly positioned.
CAUTION:
Never get under the vehicle when it is supported by the
jack alone.
8. Remove the wheel nuts and change tires.
Lift the flat tire straight off and put it aside.
Before putting on the wheel, remove any corrosion on the
mounting surfaces with a wire brush or such. Installation of
wheels without good metal-to-metal contact at the mounting
surface can cause wheel nuts to loosen and eventually cause
a wheel to come off while driving.
9. Reinstall all the wheel nuts finger tight.

IN CASE OF AN EMERGENCY
158Align the holes in the wheel with the bolts. Then lift up the wheel
and get at least the top bolt started through its hole. Wiggle the
tire and press it back over the other bolts.
Reinstall the wheel nuts and tighten them as much as you can
by hand. Press the tire back and see if you can tighten them
more.
Tighten
Tightening torque:
103 N.m (10.5 kgf.m, 76 ft.lb)
10. Lower the vehicle completely and tighten the wheel
nuts.
Turn the jack handle counterclockwise to lower the vehicle.
Use only the wheel nut wrench to tighten the nuts. Do not use
other tools or any additional leverage other than your hands,
such as a hammer, pipe or your foot. Make sure the wrench is
securely engaged over the nut.
Tighten each nut a little at a time in the order shown. Repeat
the process until all the nuts are tight.CAUTION:
As soon as possible after changing wheels, have the
wheel nuts tightened by torque wrench at 103 N
.m (10.5
kgf.m, 76 ft.lb).
11. Reinstall the wheel ornament.
Put the wheel ornament into position and then tap it firmly with
the side or heel of your hand to snap it into place.
12. After changing the wheel, check the air pressure of the
replaced tire. Restow all the tools, jack and flat tire
securely.
If the pressure is low, drive slowly to the nearest service station
and fill to the correct pressure.
Do not forget to reinstall the tire inflation valve cap as dirt and
moisture could get into the valve core and possibly cause air
leakage. If the cap is missing, have a new one put on as soon
as possible.
This is the same procedure for changing or rotating your tires.