1998 Lexus ES300 Transponder

KEYS AND DOORS7
KEYS
11L025-2
1Master key (black) ± The master key works in every lock. For your
Lexus dealer to make you a new key with built±in transponder chip,
your dealer will need it.
2 Subkey (gray) ± The subkey will not open the trunk, trunk main
switch and the glovebox.
3Key number plate ± Keep the plate in a safe place such as your
wallet, not in the vehicle.
The master key and subkey each have a transponder chip in their key head
which is very i mportant for the immobiliser system function, so be careful not
to lose these keys. If you make your own duplicate key, you will not be able
to cancel the system or start the engine.
To protect things locked in the trunk or glovebox when you have your vehic\
le
parked, leave the subkey with the attendant. Since the doors and trunk lid can be locked without a key, you should always
carry a spare master key in case you accidentally lock your keys inside the
vehicle.
If you should lose your keys or if you need additional keys, duplicates ca\
n be
made by a Lexus dealer using the key number.
You should also put a copy of the key number with your important papers.
11L003
Since a transponder chip is not built in this flat key, you cannot start the
engine with this key. Use this key to release the lock in case you
accidentally lock your keys and wireless transmitter inside the vehicle or
trunk.
Insert your flat key 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.

KEYS AND DOORS
8
NOTICE
Do not let the key case become bent as the key may fall out or become
bent also.
 The flat key is designed for emergency use only.
11L021-1
NOTICE
When using a key containing a transponder chip, observe the following
precautions:
When starting the engine, do not use the key with a key ring resting on
the key grip and do not press the key ring against the key grip.
Otherwise the engine may not start, or may stop soon after it starts.
11L022-1
When starting the engine, do not use the key in contact with another
transponder key (including keys of other vehicles) and do not press
another key plate against the key grip. Otherwise the engine may not
start, or may stop soon after it starts.

KEYS AND DOORS9
11L023-2
Do not bend the key grip.
 Do not cover the key grip with any material that cuts off
electromagnetic waves.
 Do not knock the key hard against other objects.
 Do not leave the key exposed to high temperatures for a long period,
such as on the dashboard and hood under the direct sunlight.
 Do not put the key in water or wash it in an ultrasonic washer.
 Do not use the key with electromagnetic materials.
ENGINE IMMOBILISER SYSTEM
11L024±2
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 r egistered 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 at the bottom of the instrument
cluster 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 ch\
ip,
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 yo\
u.