ignition LEXUS LS430 2006 Workshop Manual

289
4-3. Do-it-yourself maintenance
4
Maintenance and care
Air conditioning filters
The air conditioning filters must be changed regularly to maintain air condi-
tioning efficiency.
■ Front air conditioning filter
Turn the ignition switch to LOCK.
Open the glove box. Lift the partition
and remove it.
Push the levers and remove the cover.
Push up the levers and remove the fil -
ter cover.

291
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Rear air conditioning filter (if equipped)
Replace the air filter regularly to ma intain air flow, air purification, and
deodorizing performance.
Turn the ignition switch to LOCK
Open the trunk and remove the filter
cover.
Pull out the filter case and replace the
fil
ter.
Filter case
Filter
STEP2
1
2

292
4-3. Do-it-yourself maintenance
■Climate control seats
Replace the air filters when the air flow decrease.
Turn the ignition switch to LOCK.
Remove locks
Remove the air filter
Push the button to move
the rear seat to the fore-
most position
Remove locks
Remove the air filter
The side garnish filters should be
replaced at your Lexus dealer. When
you replace the filters under the seats,
have the side garnish filters replaced
as well.
Front
Lock
Rear
Lock
Side garnish filters

298
4-3. Do-it-yourself maintenance
Blade fuses
If a light does not turn on or if any of the electrical components do not operate,
a fuse may have blown. If this happens check and replace the fuses as neces
-
sary. 
If after replacing the fuse the light stil l
does not illuminate, the bulb may need
replacing.
Turn the ignition switch to the LOCK position.
Open the fuse box cover.
Fuse box inside the engine compartment
Push the tabs in and lift the lid off.
Fuse box inside the driver’s side
kick panel
Pull the tab and remove the lid.

5
When trouble arises
321
5-1. Essential information
Emergency towing
If a tow truck is not available in an emergency, your vehicle may be tem-
porarily towed by a cable or chain secur
ed to the emergency towing eye-
let(s). This should only attempted on har
d, surfaced roads for short
distance at low speeds. 
A driver must be in the vehicle to steer and oper
ate the brakes. The vehi-
cle's wheels, drive train, axles, steer ing and br
akes must be in good con-
dition.
Towing eyelet
1
■Emergency towing proceduresRelease the parking brake.
Put the transmission in “N”.
The ignition switch must be in ACC (eng
ine off) or ON (engine running).
CAUTION
■Caution while towing
●Use extreme caution when towing the vehi cle. Avoid sudden starts or erratic
driving maneuvers which place excessive stress on the emergency towing eyelets
and the cable or chain.
●If the engine is not running, the power assi st for the brakes and steering will not
function, making steering and braking more difficult.
STEP1
STEP2
STEP3

5
When trouble arises
325
5-1. Essential information
Fuel pump shut off system
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked on to the ground, the fuel system has been damaged
and it is in
need of repair. Do not restart the engine.
The fuel pump shut off system stops suppl ying fuel to the engine to minimize
the risk of fuel leakage when the en gine stalls or an airbag inflates.
■To restart the engine after the system activates
Turn the ignition switch to ACC or LOCK once.
Restart it.
STEP1
STEP2

336
5-2. Steps to take in an emergency
Warning message and lightDetails
Electronically modulated air suspension warning
Indicates a malfunction in the electronically
modulated air suspension system. The system
is not functioning while the warning message is
displayed. However, you can continue driving
until you reach a Lexus dealer.
Lexus park assist system warning
A sensor is malfunctioning or a cable is broken.
Th
e system is not functioning while the warning
message is displayed. However, you can con -
tinue driving until you reach a Lexus dealer.
• The faulty sonar is indicated on the graphic information display.
and
(flashes)
Dynamic radar/ laser cruise control system
warning
Indicates a malfunction in the dynamic radar/
laser cruise control system or the cruise control
system. Stop your vehicle in a safe place, turn
the ignition switch off and then on again to reset
the system. If settings cannot be made or the
same warning appears again, the system may
have malfunctioned. You may continue driving,
however contact your Lexus dealer.
Pre-collision safety system warning
Indicates a malfunction in the pre-collision
safety
system. The system is not functioning
while the warning message is displayed. How -
ever, you can continue driving until you reach a
Lex
us dealer.

5
When trouble arises
339
5-2. Steps to take in an emergency
Warning message and lightDetailsCorrection procedures
Steering lock warning
This message comes
on when you push
the ignition switch or
insert the smart key,
and hold the switch
or key in the "LOCK"
position for more
than 3 seconds.Turn the ignition switch
from "LOCK" to "ACC"
while moving the steer-
ing wheel slightly left to
rig
ht. ( P.94
)
Lexus park assist sys-
tem warning
Foreign matter (ice,
snow, mud, etc.,) has
adhered to the sonar.Remove the foreign mat -
ter or deice the sonar.
(The faulty sonar is indi -
cated on the graphic
information display
.)

344
5-2. Steps to take in an emergency
Smart access system failure warnings
To prevent incorrect operation, your Lexus is equipped with alarms inside
and outside, as well as warning messa ges in the multi-information display,
to alert you to problems involving the smart access system.
Inside alarmOutside alarmMulti-information displayCausesCorrection
procedures
BuzzerNoneNone
A door is
opened with -
out turning OFF
the ignition
switch.
Close the door
or turn off the
ignition switch
None
Beep
(two sec-
onds)
None
An attempt is
made to lock
the door(s)
while the mas-
ter key is still in
the vehicle or
the ignition
switch is ON.Shift to P range.
None
Beep
(ten sec-
onds)
None
An attempt is
made to lock a
door that is ajar,
or lock the mas-
ter key in the
trunk.
Bring the mas -
ter key to the
vehicle.
BeepNone
A door is
opened with-
out turning off
the ignition
switch and with
the transmission
selector lever in
a position other
than P.Turn the igni-
tion switch to
"L
OCK" posi -
tion or bring the
master k
ey to
the vehicle.

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