LEXUS LS430 2006 Owners Manual

5
When trouble arises
345
5-2. Steps to take in an emergency
One
buzzerNone(shown for about 5 sec-
onds)
The master key
is not in the
vehicle when
the ignition
switch is
pushed while in
the LOCK posi-
tion.
Bring the mas-
ter key to the
vehicle.
One
buzzer3 beeps
A door is
opened and
closed while the
master key is
not in the vehi-
cle with the
ignition switch
in the ACC or
ON position.
Bring the mas-
ter key to the
vehicle.
BeepBeep
&
appear alternately
The driver has
exited the vehi -
cle and closed
the door with-
out turning off
the ignition
switch when the
selector lever is
in a position
other than P.
Shift to P range
or bring the
master key to
the vehicle.
Inside alarmOutside alarmMulti-information displayCausesCorrection
procedures

346
5-2. Steps to take in an emergency
One
buzzerNone(shown for about 5 sec-
onds)
Key battery
charge is insuf-
ficient.
Replace key
battery
(P.295
).
One
buzzerNone(shown for about 5 sec -
onds)
An attempt is
made to use a
key that does
not match the
vehicle.
Use a key that
matches the
vehicle.
Inside
alarmOutside alarmMulti-information displayCausesCorrection
procedures

5
When trouble arises
347
5-2. Steps to take in an emergency
If you have a flat tire
Remove the flat tire and replace it with the spare provided.
■Before jacking the vehicle
●Stop the vehicle on a hard, flat surface.
●Set the parking brake.
●Set the transmission selector lever in P.
●Stop the engine.
●Turn on the emergency flashers.
■ Location of spar
e tire jack and jacking position
Tire jack position Spare tire
Tire jack
Tool box Jack handle

348
5-2. Steps to take in an emergency
Replacing a flat tire
Chock the tires.
Slightly loosen the wheel nuts (one
turn).
Wheel
chocks
Flat tireWheel chock positions
Front tire
Left-
hand
sideBehind the rear
right-hand side
tire
Right-
hand
sideBehind the rear
left-hand side tire
Rear tire
Left-
hand
sideIn front of the
front right-hand
side tire
Right-
hand
sideIn front of the
front left-hand
side tire
Wheel nut 
wrench

5
When trouble arises
349
5-2. Steps to take in an emergency
Turn the tire jack joint “A” by hand
until the jack is in contact with the
jack point.
Raise the vehicle until the tire is
slightly r
aised off the ground.
Remove all the wheel nuts and the
tir
e.
When resting the tire on the
gr
ound, place the tire so that the
wheel design faces up to avoid
scratching the wheel surface.
A
Tire Jack
Ti r e J a c k 
position
Jack point
Ti r e J a c k 
handle

350
5-2. Steps to take in an emergency
Installing spare tire
Remove any dirt or foreign matter
from the wheel contact surface.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is in
motion, and the tire may come off
the vehicle.
Install the spare tire and loosely tighten each wheel nut by hand to
approximately the same amount.
Turn the lug nuts until the washers
come into contact with the wheel.
Lower the vehicle.
Wheel nut
Wa s h e r
Disc wheel

5
When trouble arises
351
5-2. Steps to take in an emergency
Firmly tighten each nut two or
three times in the order shown in
the illustration.Tightening torque: 
76 f t
•lbf (105 N•m, 10.5 kgf•m)
Place the center ornament from the removed tire on the tire
installed on the vehicle.
Center ornaments cannot be installed on the spare tire.
Stow the flat tire, tire jack and all
tools.
Check the following when stowing
the tire jack and tire. • The tire jack should be firmly secur
ed in the carrier.
• The tire should be secured with the
bolt.

352
5-2. Steps to take in an emergency
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or injuries due to the vehicle sud-
denly falling off the jack. 
Observe the following precautions to prevent accidents.
• Do not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.
• Only use the tire jack that comes with this vehicle for replacing a flat tire. 
Do not use this tire jack on other vehicl
es, and do not use other tire jacks for
replacing tires on this vehicle.
• Always check that the tire jack is securely set to the jack point.
• Do not raise the vehicle while someone is in it.
• When raising the vehicle, do not put an object on or under the jack.
• Do not raise the vehicle to a height greate r than
that required to replace the tire.
• Do not put any part of your body under the vehicle supported by a jack.
• Do not start or run the engine while your vehicle is supported by the jack.
• Use a jack stand if it is necessary to get under the vehicle.
• Take particular care when lowering the vehicle to ensure that no one working on or
near the vehicle may be injured.
■Replacing a flat tire
Observe the following precautions to reduce
the risk of death or serious injury.
• Never use oil or grease on the wheel bolts or wheel nuts. 
The oil or grease can cause the wheel nuts to loosen, causing a serious accident.
R
emove any oil or grease on the wheel bolts or wheel nuts.
• Have the wheel nuts tightene d with a tor
que wrench to 76 f t•lbf (105 N•m, 10.5
kgf
•m) as soon as possible after changing wheels. 
Failure to follow these pre-cautions could cause, the wheel nuts to loosen and the
w
heels may fall off, which could lead to an accident causing death or serious injury.
NOTICE
■Do not drive the vehicle with a flat tire.
Do not continue driving with a flat tire. 
Driving even a short distance can damage a tire and wheel beyond repair.

5
When trouble arises
353
5-2. Steps to take in an emergency
If the engine will not start
If the engine will not start, even though correct starting procedures are being
followed (P.94), consider each of the following points. 
Contact your Lexus dealer if the problem cannot be repaired, or if repair pro -
cedures are unknown.
■ The engine will not start even wh en the starter motor operates nor-
mally
One of the following may be the cause of the problem.
• There may not be sufficient fuel in the vehicle’s tank. 
Add fuel to the vehicle.
• The engine may be flooded. 
Try to restart the engine once mor
e following correct starting
procedures (
P. 94 ). Hold the ignition switch in the START posi -
tion for a slightly longer period (u p to a maximum of 15 seconds).
■ The star
ter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
One of the following may be the cause of the problem.
• The battery may be discharged. (
P.356 )
• The battery terminal connectio ns may be loose or corr
oded.
■ The star
ter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
• One or both of the battery terminals may be disconnected.
• The battery may be discharged. (
P.356 )
• There may be a malfunction in the engine immobilizer system.  (
P.54)

354
5-2. Steps to take in an emergency
If the transmission selector lever cannot be shifted from P
If the transmission selector lever cannot be shifted with your foot on the
brake, there may be a problem with the shift lock system (a system to prevent
accidental operation of the selector lever). Have the vehicle inspected by
your Lexus dealer immediately.

The following steps may be used as an
emergency measure to ensure the
selector lever can be shifted.
Set the parking brake.
Turn the ignition switch to ACC.
Depress the brake pedal.
Pry the cover up with a flat head
s
crewdriver or equivalent.
Insert your finger, the sc rewd
river
or equivalent into the hole to push
down the shift lock override but -
ton. You can shift the selector lever
while pushing the button.