LEXUS SC300 1999 Owners Manual

SECTION 4
273
IN CASE OF AN EMERGENCY
If your engine stalls while driving. . . . . . . . . . . . . . . . . . . . .
274
If your vehicle will not start . . . . . . . . . . . . . . . . . . . . . . . . . .
275
If your vehicle overheats . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
280
If you have a flat tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
283
If your vehicle needs to be towed . . . . . . . . . . . . . . . . . . . . . .
297
If you cannot shift automatic transmission selector lever . . .
306
If you lose your keys or lock yourself out . . . . . . . . . . . . . . .
307

IN CASE OF AN EMERGENCY
274
IF YOUR ENGINE STALLSWHILE 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 ºIf 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.

IN CASE OF AN EMERGENCY
275
IF YOUR VEHICLE WILL NOTSTART
(a) Simple checks
Before making these checks, make sure you have followed
the correct starting procedure instructions in ºHow to start the
engineº on page 216 and that you have sufficient fuel. Since
your vehicle is equipped with the engine immobiliser system,
also check whether the other keys will 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, the system is
possibly broken. Call your Lexus dealer. See ºKeysº on page
12. 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 º(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
ºForewordº.)
NOTICE
Do not pull±or push±start the vehicle. It may damage the
vehicle or cause a collision when the engine starts. Also
the three±way catalytic converter may overheat and
become a fire hazard.
If the engine turns over at its normal speed but will not
start ±
1. The engine may be flooded because of repeated cranking.
See º(b) Starting a flooded engineº 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 ºForewordº.)

IN CASE OF AN EMERGENCY
276
(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 ºSTARTº with the accelerator
pedal held down. Continue this operation for 30 seconds and
then stop cranking. Then try starting the engine with your foot
off the accelerator pedal.
If the engine does not start after 30 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 ºForewordº.)
NOTICE
Do not crank for more than 30 seconds at a time. This
may overheat the starter and wiring systems.
(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.

IN CASE OF AN EMERGENCY
277
(See ºForewordº.)
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 is
correct.

IN CASE OF AN EMERGENCY
278

IN CASE OF AN EMERGENCY
279
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.
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.)
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. Connect the jumper cables in the exact order shown in the
illustration: positive terminal (º+º mark)±to±positive
terminal (º+º mark), and negative terminal (º±º
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, unpainted
metallic point (e.g. SC400: brake booster vacuum pipe
bracket, SC300: cylin der head) 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.

IN CASE OF AN EMERGENCY
2805. 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. 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.
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.

IN CASE OF AN EMERGENCY
281
When the engine overheats
Pull safely off the road, stop the vehicle and turn on your
emergency flashers. Put the transmission in ºPº 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
282B: 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.