fuel LEXUS LS430 2005 Owner's Manual

EXTERIOR EQUIPMENT
147
15L037b
2. To remove the fuel tank cap, turn the cap slowly
counterclockwise, then pause slightly before removing it.
The removed cap can be stored on the back side of the fuel
filler door.
It is not unusual to hear a slight swoosh when the cap is
opened. When installing the cap, turn the cap clockwise until
you hear a click.
If the cap is not tightened securely, the malfunction indicator
lamp comes on. Make sure the cap is tightened securely.
The indicator lamp goes off after driving several times. If the
indicator lamp does not go off, contact your Lexus dealer as
soon as possible.
CAUTION
 Make sure the cap is tightened securely to prevent
fuel spillage in case of an accident.
 Use only a genuine Lexus fuel tank cap for
replacement. It is designed to regulate fuel tank
pressure.
NOTICE
To prevent damage to the cap, observe the following
precautions.
Apply force only in the turning direction to the cap.
Do not pull or pry it.
 Do not tighten the cap further after you hear one click
when installing.

EXTERIOR EQUIPMENT
148
In case the opener is not actuated
15L040c
Pull the manual lever located in the trunk toward the back.
This is used in case the fuel filler door cannot be opened due
to a discharged battery or other trouble.
Refueling the vehicle
As soon as the correctly operated nozzle switches off
automatically for the first time, the tank is full. Do not try
to add more fuel, because fuel may spill out.
MOON ROOF
15L086
 1 Open 2Close
To slide open the moon roof, push the slide control switch
toward the back for about 1 second. The moon roof will
open and stop partway 30 mm (1.2 in.) from the fully
opened position. When you push the switch once again,
the moon roof will fully open. To stop partway, push the
same side or the “TILT” switch.
As driving with the moon roof opened fully will cause wind
throbs, we recommend you to drive with the moon roof partway
30 mm (1.2 in.) from the fully opened position.
To operate the moon roof, the ignition switch must be in the
“ON” position.
The sunshade can be opened or closed manually. However,
if you open the moon roof, the sunshade will be opened with
the moon roof.

AIR CONDITIONING
247
The sensitivity of the sensor can be adjusted only while the
vehicle has stopped.
21L108
When
you push either side of the “TEMP” button several times,
the sensitivity changes from “+3” down to “–3”. If you d\
o not
operate any button for a few seconds, the previous display
returns.
If manual onoff of the air conditioning is desired
Push the “A/C” button to turn the air conditioning on and push
it again to turn the air conditioning off. If you turn off the air
conditioning manually, the EXHAUST GAS AUTOMATIC
mode will be cancelled.
If the outside temperature is lowered down to around 0 C
(32 F), the air conditioning will turn off automatically. At this
time, the indicator on the A/C button is off and the EXHAUST
GAS AUTOMATIC indicator light remains on. However, the
EXHAUST GAS AUTOMA TIC mode does not operate. When
the air conditioning turns on as with the raised temperature, the
EXHAUST GAS AUTOMATIC mode resumes. If the system is used for ventilation, heating in dry weather or
removing frost or exterior fog on the windshield, turn the air
conditioning off
once it is no longer required. This will improve
fuel economy. The air conditioning can be used for year −round
automatic temperature control including cooling and
dehumidifying operation.
If the air conditioning compressor does not operate, the
indicator of the “A/C” button will blink. If the indicator of the
“A/C” button blinks even when the “A/C” button is pushed
again, have the compressor checked by your nearest Lexus
dealer.

STARTING AND DRIVING
296
THREEWAY CATALYTICCONVERTERS
31L353a
Threeway catalytic converters are emission control
devices installed in the exhaust system.
The purpose is to reduce pollutants in the exhaust gas.
CAUTION
Keep people and combustible materials away from
the exhaust pipe while the engine is running. The
exhaust gas is very hot.
 Do not drive, idle or park your vehicle over anything
that might burn easily such as grass, leaves, paper or
rags.
NOTICE
A large amount of unburned gases flowing into the
threeway catalytic converter may cause it to overheat
and create a fire hazard. To prevent this and other
damage, observe the following precautions:
 Use only unleaded gasoline.
 Do not drive with an extremely low fuel level; running
out of fuel could cause the engine to misfire, creating
an excessive load on the threeway catalytic
converter.
 Do not allow the engine to run at idle speed for more
than 20 minutes.
 Avoid racing the engine.
 Do not pushstart or pullstart your vehicle.
 Do not turn off the ignition while the vehicle is
moving.
 Keep your engine in good running order.
Malfunctions in the engine electrical system,
electronic ignition system or fuel system could cause
an extremely high threeway catalytic converter
temperature.
 If the engine becomes difficult to start or stalls
frequently, take your vehicle in for a checkup as
soon as possible. Remember, your Lexus dealer
knows your vehicle and its threeway catalytic
converter system best.

STARTING AND DRIVING
298
BEFORE STARTING THE ENGINE
1. Check the area around the vehicle before entering it.
2. Adjust seat cushion length, seat position, seatback angle,
seat cushion angle, seat cushion height, head restraint height
and steering wheel angle.
3. Adjust the inside and outside rear view mirrors.
4. Lock all doors.
5. Fasten seat belts.
Remember to check that the service reminder indicators
function when turning the ignition switch to “ON”, and check the
fuel gauge to see that you have sufficient fuel.
SMART IGNITION SWITCH WITH STEERING LOCK
31L345a
Carrying a smart key allows you to start the engine
without the key being inserted into the ignition switch.
The smart key system can be deactivated using a key cancel
switch. For details, see “Deactivating the smart key system”
on page 34.

STARTING AND DRIVING
304
PARKING BRAKE
31L628
1To set: Fully depress the parking brake pedal.
2To release: Pull the parking brake release lever.
Before leaving your vehicle, firmly apply the parking brake.
CAUTION
Before driving, make sure the parking brake is fully
released and that the parking brake reminder light is off.
HOW TO START THE ENGINE
Before cranking
1. Apply the parking brake firmly.
2. Turn off unnecessary lights and accessories.
3. Put the selector lever in “P”. If you need to restart the engine
while the vehicle is moving, put the selector lever in “N”. A
starter safety device will prevent the starter from operating if
the selector lever is in any drive position.
4. Depress the brake pedal and hold it to the floor until driving
off.
Starting the engine
Before starting the engine, be sure to follow the instructions in
“Before cranking”.
Normal starting procedure
The multiport fuel injection system/sequential multiport fuel
injection system in your engine automatically controls the
proper air −fuel mixture for starting. You can start a cold or hot
engine as follows:
With your foot off the accelerator pedal, crank the engine by
turning the ignition switch to “START”. Release it when the
engine starts.

STARTING AND DRIVING
307
(a) Normal driving
31L321a
 1“P” (Park) position 2“N” (Neutral) position
1. Start the engine as instructed in “How to start the
engine” on page 304.
The transmission must be in “P” or “N” position. The engine wi\
ll
not start in any drive position even if the ignition switch is turned
to “START”.
31L322
 1 Power position 2Normal position
3Snow position
2. Set the driving pattern selector switch to the “Normal”
position.
Your transmission has a driving pattern selector switch which
allows you to select “Power”, “Normal” or “Snow” mode to suit\
your driving condition. For ordinary driving, Lexus
recommends that you use the “Normal” position to improve fuel
economy.
3. For more powerful acceleration and sporty driving, use
the “Power” position.
In the “Power” position, the “ECT PWR” light in the instrument
cluster is on and the transmission is shifted up at higher vehicle
speeds and shifted down more responsively than in the
“Normal” position.
For “Snow” mode, see “Electronic Throttle Control
System” on page 315.

STARTING AND DRIVING
308
31l323
 1Brake pedal 2“D” (Drive) position
4. With your foot holding down the brake pedal, shift the
selector lever to “D”.
Always use the “D” position to improve fuel economy and quiet
driving. Only in this position, shifting into the overdrive gear is
possible. However, while the engine coolant temperature is
low, the transmission will not shift into the overdrive gear even
in the “D” position. (See “(c) Using engine braking” and “(f)
Good driving practice” for exceptions.)
CAUTION
Never put your foot on the accelerator pedal while
shifting.
5. Release the parking brake and brake pedal. Depress
the accelerator pedal slowly for smooth starting.
In normal cruising, the vehicle will start in first gear and
automatically shift up to the most suitable gear. On inclines,
declines or winding roads, etc., the vehicle shifts up and down
automatically according to the running conditions to obtain the
suitable driving power and engine braking.
If you need to accelerate rapidly while driving, depress the
accelerator pedal to the full throttle position. This provides
more acceleration by auto matically downshifting the
transmission to the next lower gear or beyond, depending on
the vehicle speed.
If engine braking is needed, such as in descending a long hill,
see “(c) Using engine braking”.
 AI (Artificial Intelligence) shifting control
AI shifting control selects the most suitable shift range
automatically according to the driver’s operation and
driving condition.
AI shifting control operates automatically with the
selector lever in the “D” position. When the lever is moved
to the “S” position, this function will be canceled.
Shifting control on the slope: On inclines, you can drive
smoothly with reduced shifting quantity. On declines, the
vehicle will shift down automatically to obtain optimum engine
braking and reduce the driver’s foot braking load.
Automatic shifting point change control: The most suitable
shift range is selected depending on the driver’s accelerator
pedal operation and vehicle condition.

STARTING AND DRIVING
309
(b) Driving in “S” mode
31L326
 1Upshifting
2Downshifting
3“S” mode position
4Shift range position indicator
You can change the shift range position in the “S” mode.
The shift range position can be switched between “6”
(sixth range) and “1” (first range) by moving the selector
lever up to the “+” side or down to the “–” side. The first
shift range position is “5” (fifth range) when the selector
lever is shifted to the “S” position.
However, if you move the lever to the “S” position in AI
shifting control, “5” (fifth range), “4” (fourth range) or “3”\
(third range) will be the first shift range. This is because
the suitable shift range is selected depending on the
driving condition.
31L328
 Shift range position indicator
The shift range position is displayed on the instrument cluster.
 Shift range positions
“6” (sixth range): The most suitable gear is automatically
selected between first and overdrive (sixth) gears according
to vehicle speed and driving conditions. Always use the “6”
(sixth range) position to improve fuel economy and for quiet
driving.
“5” (fifth range): The most suitable gear is automatically
selected between first and fifth gears according to vehicle
speed and driving conditions. This range is suitable for
acceleration such as when you want to pass a vehicle
running ahead of you during high speed driving.

STARTING AND DRIVING
315
(g) If you cannot shift the selector lever
If you cannot shift the selector lever even though the brake
pedal is depressed, use the shift lock override button. For
instructions, see “If you cannot shift automatic transmission
selector lever” on page 423.
ELECTRONIC THROTTLECONTROL SYSTEM
The electronic throttle control system always maintains
appropriate engine output in relation to the accelerator
opening in all driving conditions.
31L322
 1Power position 2Normal position
3Snow position
The electronic throttle control system has 3 modes:
Normal, Power and Snow modes.
Normal mode: For ordinary driving, Lexus recommends that
you use the normal mode to improve fuel economy.
Power mode: For more powerful acceleration and sporty
driving.