1999 LEXUS SC300 Owners Manual

DRIVING TIPS
271
Supplement/Maintenance Scheduleº.)
CAUTION
Never turn off the engine to coast down hills. Your power
steering and brake booster will not function without the
engine running. Also, the emission control system operates
properly only when the engine is running.

DRIVING TIPS
272

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