service lexus LS400 1994 Repair Manual Information / 1994 LS400: IN CASE OF AN EMERGENCY

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
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.

IN CASE OF AN EMERGENCY
159 CAUTION:
Before driving, make sure all the tools, jack and flat tire are
securely in place in their storage location to reduce the
possibility of personal injury during a collision or sudden
braking.
IF YOUR VEHICLE NEEDS
TO BE TOWED
If towing is necessary, we recommend you have it done by
your Lexus dealer or a commercial tow truck service.
Proper equipment will help ensure that your vehicle is not
damaged while being towed. Commercial operators are
generally aware of the state / provincial and local laws
pertaining to towing.
Your vehicle can be damaged if it is towed incorrectly. Although
most operators know the correct procedure, it is possible to
make a mistake. To avoid damage to your vehicle, make sure
the following few precautions are observed. If necessary, show
this page to the tow truck driver.
TOWING PRECAUTIONS:
Use a safety chain system for all towing, and abide by the
state / provincial and local laws. The wheels and axle on the
ground must be in good condition. If they are damaged, use a
towing dolly.
For vehicles equipped with the height control system, turn the
height control ON / OFF switch to OFF before towing the
vehicle. See page 133.1. Using flat bed truck
Lexus recommends this as the best method for your vehicle..

Tie down points
Front

IN CASE OF AN EMERGENCY
1623. Towing with a sling type truck

From front
Follow the instructions for towing from front in “2. Towing with
wheel lift type truck”.

From rear
NOTICE:
Do not tow with sling type truck. This may cause body
damage.
Emergency towing
Emergency towing eyeletsEmergency towing eyelets
If towing service is not available in an emergency, your
vehicle may be temporarily trailed by a cable secured to
one of the eyelets under the front or rear of the vehicle.
A driver must be in the vehicle to steer it and operate the
brakes. Towing in this manner may be done only on
hard-surfaced roads for a short distance and at low speeds.
Also, the wheels, axles, drive train, steering and brakes must
all be in good condition.
Before towing, release the parking brake and put the
transmission in “N”. The key must be in “ACC” (engine off) or
“ON” (engine running).
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.