ECU Lexus ES300 2003 Owner's Manuals (in English)

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
viPage
1
Door lock switch and power window
switches 24, 40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Driving position memory switches 152
. . . . . . . . . . .
3 Power rear view mirror control switches 102 . . . . . .
4 Side vents 170
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Instrument panel light control dial 61
. . . . . . . . . . . . .
6 Headlight, turn signal and
fog light switches 28, 30, 33, 34
. . . . . . . . . . . . . . . . . . .
7 Multiinformation display control switches 59 . . . .
8 Ignition switch 225
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Wiper and washer switches 34
. . . . . . . . . . . . . . . . . . .
10 Seat heater switches 44
. . . . . . . . . . . . . . . . . . . . . . . . .
11 Emergency flasher switch 43
. . . . . . . . . . . . . . . . . . . .
12 Clock 67
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . .
13 Car audio 174, 196
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 Front passenger’s seat belt reminder light 53 . . . . .
15 Security indicator light 14, 156
. . . . . . . . . . . . . . . . . . . Page
16 Glove box
70
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17 Automatic air conditioning controls 160
. . . . . . . . . .
18 Rear window and outside rear view mirror
defogger switch 39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19 Ashtray 68
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
20 Automatic transmission selector lever 227 . . . . . . . .
21 Rear electric sunshade switch 79
. . . . . . . . . . . . . . . .
22 Electronic modulated suspension
control switch 237 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23 Traction control system off switch 238
. . . . . . . . . . .
24 Cruise control switch 234
. . . . . . . . . . . . . . . . . . . . . . .
25 Power adjustable pedals switch 100
. . . . . . . . . . . . . .
26 Parking brake pedal 226
. . . . . . . . . . . . . . . . . . . . . . . . .
27 Auxiliary box 76
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28 Hood lock release lever 84
. . . . . . . . . . . . . . . . . . . . . .
29 Trunk lid opener 85
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30 Fuel filler door opener 87
. . . . . . . . . . . . . . . . . . . . . . . .

KEYS AND DOORS
11
Flat key
As a transponder chip is built in its key case, you can start
the engine with this key.
The flat key works in every lock.
A transponder chip for engine immobiliser system has been
placed in the key case of the flat key. This chip is needed to
enable the system to function correctly, so be careful not to
lose this key. If you make your own duplicate key, you will not
be able to cancel the system or start the engine.
Insert your key plate in its key case as shown. We recommend
that you always carry this with you for emergency use. Do not
leave it in your vehicle.
Starting the engine using a flat key
1. Remove the key plate from the key case.
2. Insert the key plate into the ignition switch. The indicator
light keeps flashing.
3. Bring the key case closer to the ignition switch within 10
seconds as indicated by the arrow head. The indicator light
goes out. This means the engine immobiliser system is
automatically canceled. (For details, see “Engine immobiliser
system” on page 14.) You can put the key case away then. You
cannot cancel the engine immobiliser system if 10 seconds
have past after you inserted the key plate. You need to remove
the key plate from the ignition switch and try it again from the
step 2.
4. Start the engine within 20 seconds after the security
indicator light goes out. You cannot start the engine if 20
seconds have past after the security indicator went off. You
need to remove the key plate from the ignition switch and try
it again from the step 2.

KEYS AND DOORS
14
ENGINE IMMOBILISER SYSTEM
The engine immobiliser system is a theft prevention
system. When you insert the key in the ignition switch, the
transponder chip in the key’s head transmits an electronic
code to the vehicle. The engine will start, only when the
electronic code in the chip corresponds to the registered
ID code for the vehicle.
The system is automatically set when the key is removed from
the ignition switch. At this time, the security indicator light
flashes. When you insert the key in the ignition switch, the
security indicator light goes out and the system is canceled
automatically, which enables the engine to start.For your Lexus dealer to make you a new key with built
−in
transponder chip, your dealer will need your key number and
master key. However, there is a limit to the number of
additional keys your Lexus dealer can make for you.
If you make your own duplicate key, you will not be able
to cancel the system or start the engine.
For vehicles sold in U.S.A.
FCC ID: MOZRI16BTYB MADE IN JAPAN
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.
CAUTION
Changes or modifications not expressly approved by
the party responsible for compliance could void the
user’s authority to operate the equipment.

KEYS AND DOORS
16In the following cases, th
e battery in the key may be
discharged. If this is a case, replace it using a special
screwdriver.
 The remote control does not work.
 The operational range of wireless remote control becomes
extremely short.
 The indicator light on the key is dimmed or does not come
on.
For the replacement of the battery, see “Replacing the battery”
on page 20. You can also have the battery of the key replaced
by your Lexus dealer.
If you lose the wireless key , contact your Lexus dealer as soon
as possible to avoid the possibility of theft, or an accident. (See
“If you lose your keys or lock yourself out” on page 285.)
You can use up to 4 wireless remote control keys for the same
vehicle. Contact your Lexus dealer for detailed information.
The wireless remote control key is an electronic
component. Observe the following instructions in order
not to cause damage to the key.
 Do not leave the wireless remote control key on places
where the temperature becomes high such as on the
dashboard.
 Do not disassemble it.
 Avoid knocking it hard against other objects or dropping it.
 Avoid putting it in water.
Locking/Unlocking the doors
When you push the “LOCK” button on the key briefly, all
the doors can be locked from outside the vehicle.
At this time, one beep sounds and the turn signal lights flash
once.* However, when you push the “LOCK” button with any
door not closed securely, the buzzer sounds for 10 seconds.**
To stop the buzzer, close all the doors securely or push the
“UNLOCK” button. If the key is in the ignition switch, locking
cannot be done.
Make sure all the doors are locked when you leave the vehicle.
Push the “LOCK” button once again.
NOTE:
* The turn signal lights can be set not to flash and the beep
volume can be changed.
** The buzzer can be set not to sound if a door is not closed
securely.
Ask your Lexus dealer for details.
NOTICE
Do not push the “LOCK” button any longer than 2 to 3
seconds. Pushing the button longer activates an alarm.
For details, see page 18.

KEYS AND DOORS
225. Install the lid with the 2 screws.
6. Install the module into the key frame and secure the cover
with the screw.
7. When pushing any button on the wireless key, make sure
the indicator light comes on.
DOORS
Locking with key
 1
Lock 2Unlock
Turn the key towards the front of the vehicle to lock and
towards the back to unlock.
The doors lock and unlock simultaneously with the driver’s
door. Turning the key once will unlock the driver’s door and
twice in succession will unlock all doors simultaneously.* NOTE:
* The 2step unlocking function can be changed.
Ask your Lexus dealer for details.
If a wrong key is used, the key cylinder rotates freely to isolate
inside mechanism. So, door locking is protected from thieves.
The windows and moon roof can be opened from outside the
vehicle using the key. For details, see page 42 and page 91.

SWITCHES
38
Shifting the windshield wiper position
 1Rest position 2Retracted position
The wiper blades retract under the hood when the wipers are
turned off.
In the following cases, the wipers should be shifted from the
retracted position (position 2) to the rest position (position 1)
above the hood level.
 When cleaning the windshield
 When inspecting or replacing the wipers
 When the retraction may be obstructed by snow, etc., at the
bottom of the windshield
Other than the above cases, keep the wipers in the retracted
position.
* More than 10 cm (3.9 in.)
SHIFTING TO THE REST POSITION
Hold the connection of the wiper arm and wiper blade and
pull it upward for more than 10 cm (3.9 in.) along the
windshield glass with the force of about 98 N (10 kgf, 22
lbf).
NOTICE
To prevent the wiper blades from being deformed, be
sure to hold the connection of the wiper arm and wiper
blade securely.

SWITCHES
39
RETURNING TO THE RETRACTED POSITION
Push the connection of the wiper arm and wiper blade
downward.
NOTICE
To prevent the wiper blades from being deformed, be
sure to hold the connection of the wiper arm and wiper
blade securely.
REAR WINDOW AND OUTSIDE
REAR VIEW MIRROR DEFOGGER SWITCH
To turn the electric rear window and outside rear view
mirror defogger on, push the switch.
The ignition key must be in the “ON” position.
The thin heater wires on the inside of the rear window and the
heater panels in the outside rear view mirrors will quickly clear
the surface. An indicator light is on when the defogger is
operating.
The system will automatically shut off when the defogger has
operated about 15 minutes.

Finish
GAUGES, METERS AND SERVICE REMINDER INDICATORS
55

Empty fuel tank
If the fuel tank is empty, refuel immediately.
 Loose fuel tank cap
If the fuel tank cap is loose, securely tighten it.
These cases are temporary malfunctions. The malfunction
indicator lamp will go off after taking several driving trips.
If the lamp will not go off even after the several trips, contact
your Lexus dealer as soon as possible.
If the fuel tank is not empty or the fuel tank cap is not
loose...
 There is a problem somewhere in the engine, emission
control system, electronic throttle control system, automatic
transmission electrical system or warning light system itself.
Contact your Lexus dealer as soon as possible to service the
vehicle.
If the engine speed does not increase with the accelerator
pedal depressed down, there may be a problem somewhere
in your electronic throttle control system.
At this time, vibration may occur. However, if you depress the
accelerator pedal more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle checked by your
Lexus dealer as soon as possible.
Even if the abnormality of the electronic throttle control system
is corrected during low speed driving, the system may not be
recovered until the engine is stopped and the ignition key is
turned to “ACC” or “LOCK” position.
CAUTION
Be especially careful to prevent erroneous pedal
operation.
Emissions Inspection and Maintenance (I/M) programs
Your vehicle may not pass a state emission inspection if the
malfunction indicator lamp remains on. Contact your Lexus
dealer to check your vehicle’s emission control system and
OBD (On −Board Diagnostics) system before taking your
vehicle for the inspection.
For details, see “Emissions Inspection and Maintenance (I/M)
programs” on page 293.
(i) “ABS” Warning Light
Vehicles without vehicle skid control system—
The light comes on with the ignition key turned to the “ON”
position. If the anti −lock brake system works properly, the light
turns off after a few seconds. Thereafter, if the system
malfunctions, the light comes on again.
When the “ABS” warning light is on (and the brake system
warning light is off), the anti− lock brake system does not
operate, but the brake system still operates conventionally.
When the “ABS” warning light is on (and the brake system
warning light is off), the anti− lock brake system does not
operate so that the wheels could lock up during a sudden
braking or braking on slippery road surfaces.

Finish
INTERIOR EQUIPMENT
71
GARAGE DOOR OPENER
The garage door opener (HomeLink
Universal
Transceiver) is manufactured under license from
HomeLink
 and can be programmed to operate garage
doors, gates, entry doors, door locks, home lighting
systems, and security systems, etc.
(a) Programming the HomeLink
 1 Indicator light 2 Buttons
The HomeLink
 in your vehicle has 3 buttons and you can
store one program for each button.
To ensure correct programming into the HomeLink
, install a
new battery in the hand −held transmitter prior to programming. The battery side of the hand
−held transmitter must be pointed
away from the HomeLink
 during the programming process.
For Canadian users, follow the procedure in “Programming an
entrance gate/Programming all devices in the Canadian
market”.
1. Decide which of 3 HomeLink
 buttons you want to program.
2. Place your hand− held garage transmitter 25 to 75 mm (1 to
3 in.) away from the surface of the HomeLink
.
Keep the indicator light on the HomeLink
 in view while
programming.
3. Simultaneously press and hold the hand −held garage
transmitter button along with the selected HomeLink
 button.
4. When the indicator light on the HomeLink
 changes from a
slow to a rapid flash after 20 seconds, you can release both
buttons.
5. Test the operation of the HomeLink
 by pressing the newly
programmed button. If programming a garage door opener,
check to see if the garage door opens and closes.

Finish
INTERIOR EQUIPMENT
73
6. Test the operation of the HomeLink
 by pressing the newly
programmed button. Check to see if the gate/device operates
correctly.
7. Repeat steps 1 through 6 for each remaining HomeLink

button to program another device.
Programming other devices
To program other devices such as home security systems,
home door locks or lighting, contact your authorized Lexus
dealer for assistance.
Reprogramming a button
Individual HomeLink
buttons cannot be erased, however, to
reprogram a single button, follow the procedure “Programming
the HomeLink
”.
(b) Operating the HomeLink
To operate the HomeLink, press the appropriate HomeLink
button to activate the programmed device. The HomeLink
indicator light should come on. The HomeLink continues to
send the signal for up to 20 seconds as long as the button is
pressed.
(c) Erasing the entire HomeLink memory
(all three programs)
To erase all previously programmed codes at one time, press
and hold down the 2 outside buttons for 20 seconds until the
indicator light flashes.
If you sell your vehicle, be sure to erase the programs stored
in the HomeLink
 memory.
CAUTION
 When programming the HomeLink Universal
Transceiver, you may be operating a garage door or
other device. Make sure people and objects are out
of the way of the garage door or other device to
prevent potential harm or damage.
 Do not use this HomeLink
 Universal Transceiver
with any garage door opener that lacks the safety
stop and reverse feature as required by federal safety
standards. (This includes any garage door opener
model manufactured before April 1, 1982.) A garage
door opener which cannot detect an object (signaling
the door to stop and reverse), does not meet current
federal safety standards. Using a garage door
opener without these features increases risk of
serious injury or death.