check engine light LEXUS LS430 2006 Owners Manual

Scrapping of your Lexus
The SRS airbag and seat belt pretensioner devices in your Lexus contain explosive
chemicals. If the vehicle is scrapped with the airbags and seat belt pretensioners left
as they are, this may cause an accident such as fire. Be sure to have the systems of
the SRS airbag and seat belt pretensioner removed and disposed of by a qualified
service shop or by your Lexus deal er before you scrap your vehicle.
Leak detection pump
This pump performs fuel evaporation leakage check. This check is done approxi -
mately five hours after the engine is turned off. So you may hear sound coming from
un
derneath the luggage compartment for se veral minutes. It does not indicate a
malfunction.
CAUTION
■General precautions while driving
Driving under the influence: Never drive your vehicle when under the influence of
al
cohol or drugs that have impaired your ab ility to operate your vehicle. Alcohol and
certain drugs delay reaction time, impair judgment and reduce coordination, which
could lead to an accident that will hurt or kill you, your occupants or others.
Defensive driving: Always drive defensively. Anticipate mistakes that other drivers or
pedestrians
might make and be ready to avoid accidents.
Driver distraction: Always give your full attention to driving. Anything that distracts
the driv
er, such as adjusting controls, talking on a cellular phone or reading can result
in a collision with resulting death or seriou s injury to you, your occupants or others.
■When children are in the vehicle
Never leave children unattended in the vehicle.
When left unattended, children may be able to st
art the vehicle or shift the vehicle into
neutral. There is also a danger that children may injure themselves by playing with the
cigarette lighter, the windows, the moon roof , or other features of the vehicle. In addi-
tion, heat build-up or extremely cold temperatures inside the vehicle can be fatal to
ch
ildren.

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2-1. Driving procedures
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When driving
■If the engine does not start
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.
■Starting the engine using the flat key (Smart access)
■ Steering lock release
When starting the engine, the igni -
tion switch may seem stuck in the
“L
OCK” position. To free it, per -
form the following:
Smart access
Push and hold the ignition
s
witch (do not try to turn the
ignition switch), then rock the
steering wheel until it releases.
Standard
Turn the key while turning the
steering wheel slightly in either
dir

ection.
Remove the flat key from its case.
Insert the flat key into the igni-
tions switch.
Start the engine within 10 sec-
onds after the indicator light goes
off.

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2-2. Instrument cluster
Instrument panel light control
The brightness of the instrument panel lights can be adjusted by turning
the instrument panel light control knob.
Darker
Brighter
Odometer
Displays the total distance the vehicle has been driven.
Multi-information display ( P.107 )
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9
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NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indi -
cates the maximum range of engine revolutions.
●The engine may be overheating if the temperature gauge is in the red zone (H).
Immediately stop the vehicle in a safe place and check the engine. ( P.359 )

106
2-2. Instrument cluster
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as ABS, TR
AC OFF or the airbag warning light
not come on when you start the engine, th is could mean that these systems are not
available to help protect you in an accident, which could result in death or serious
injury. Have the vehicle inspected by your Lexus dealer immediately if this occurs.
■ Warning lights
Warning lights inform the driver of a malfunction in the indicated vehi -
cle’s systems. (
P. 328 )
* These lights turn on when the ignition sw itch is turned to ON to indicate that
a system check is being performed. Th ey will turn off after the engine is
started on, or after a few seconds.
There may be a malfunction in a system if a
light does not come on, or if the
lights do not turn off. Have the vehicle inspected by your Lexus dealer.
*
(U.S.A)
(U.S.A) (Canada) (U.S.A) (Canada)
(Canada)

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2-3. Operating the headlight and windshield wipers
Adaptive front lighting system (AFS)
To improve road illumination when turning, the right side headlight moves right
on right turns, and the left side headlight moves left on left turns.
Adaptive front lighting system
cancel switch
On
Off
When the system is canceled,
the “

AFS OFF” indicator lights
up in the instrument cluster.
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2
3
■Operating conditions
The system starts to operate when the v
ehicle’s speed increases above 6 mph (10
km/h), and stops when the vehicles speed drops below 6 mph (10 km/h).
■When the “AFS OFF” indicator light flashes,
This indicates a system failure. Have your vehicle checked at your Lexus dealer.
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.

154
2-5. Driving information
■Before towing
●Ensure that your vehicle’s tires are properly inflated. (P.283 )
●Trailer tires should be inflated according to the trailer manufacturer’s recom -
mendation.
●All trailer lights must work to be legal.
●Confirm all lights work each time you connect them.
●Check that your vehicle remains level when a loaded or unloaded trailer is
hitched. Do not drive if the vehicle is not level, and check for improper tongue
load, overloading, worn suspension, or other possible causes.
●Make sure the trailer cargo is securely loaded.
●Check that your rear view mirrors conform to any federal, state/provincial or
local regulations. If they do not, instal l rear view mirrors appropriate for towing
purposes.
■Break-in schedule
Lexus recommends that you do not use a new vehicle or a vehicle with any new
p

ower train components (engine, transmissi on, differential, wheel bearing, etc.) to
tow a trailer for the first 500 miles (800 km) of driving.
■Maintenance
●If you tow a trailer, your vehicle will require more frequent maintenance due to
the additional load. (see “Owner’s Manual Supplement/ Scheduled Mainte -
nance”)
●Retighten the fixing bolts of the towing ball and bracket after approximately
600 miles (1000 km) of trailer towing.

260
4-3. Do-it-yourself maintenance
Hood
CAUTION
■Pre-driving check
Check that the hood is fully closed and locked. 
If the hood is not locked properly it may open while the vehicle is in motion and
ca
use an accident, which may result in death or serious injury.
Lift the hood to inspect engine components and fluid levels.
Pull the hood release lever.
The hood will pop up slightly.
Lift the hood catch and lift the hood.

272
4-3. Do-it-yourself maintenance
Power steering fluid
■Fluid level
The fluid level should be within the
appropriate range.
Full line when cold
Add fluid if at or below line
when cold.
Full line when hot
Add fluid if at or below line
when hot.
Hot : If the vehicle has been driven around 50 mph (80 km/h) for 20 min -
utes (slightly longer in frigid te mper
atures), the fluid is hot (140F -
175
F or 60C - 80C).
Cold : If the engine has not been run for about
five hours, the fluid is cold.
(about room temperature, 50
F - 85F or 10C - 30C).
■ Checking the fluid level
Make sure to check the fluid type and prepare the necessary items before
checking.
Clean all dirt off the reservoir.
Remove the reservoir cap by tu rning it counter
clockwise and
wipe the dipstick clean.
Reinstall the reservoir cap.
Remove the reservoir cap again and look at the fluid le
vel.
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2
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4
Fluid typeAutomatic transmission fluid DEXRON II or III
ItemsRag or paper towel and funnel (only for adding fluid)

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.

309
4-3. Do-it-yourself maintenance
4
Maintenance and care
Cartridge fuses
■If there is an overload in the circuits from the battery
The fuses are designed to blow before the wiring harness is damaged.
If the headlights or other electrical components do not work and the blade
fuses are O.K., check the cartridge fuses.
■ Fuse location
■ Checking whether fuses ar
e good or blown
Good
Blown
If replacement is necessary,
replace with a genuine Lexus fuse
or equivalent with the same amper -
age rating as original.
Engine CompartmentEngine Compartment
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