2005 TOYOTA AVALON key battery

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The engine immobilizer system is a
theft prevention system using an elec-
tronic code. The transponder chip in
the key has an electronic code and
transmits the code to the vehicle. Only
when the electronic code in the chip
corresponds to the register ID code for
the vehicle, the engine immobilizer sys-
tem will be canceled and the engine
will start.
The engine immobilizer system is automat-
ically set when:
Vehicles with key cylinder−type ignition
switch—The key is removed from the igni-
tion switch.
Vehicles with smart key system—The igni-
tion switch is turned off.
The indicator light will start flashing to
show that the system is set. If any of the following indicator conditions
occur, contact your Toyota dealer.
The indicator light remains on.
The indicator light does not start flash-
ing under the following situations.
Vehicles with key cylinder
−type ignition
switch—When the key is removed from
the ignition switch.
Vehicles with smart key system—When
the ignition switch is turned off.
The indicator light flashes inconsistent-
ly.
The engine immobilizer system is automat-
ically canceled when:
Vehicles with key cylinder −type ignition
switch—
You insert the key to the ignition switch.
Vehicles with smart key system—
You enter the vehicle carrying a key with
smart key system and press the “ENGINE
START STOP” switch (engine switch). For
further information, see “Smart key sys-
tem” on page 27 in this Section.
If the key battery is dead, you should hold
the electronic key up to the “ENGINE
START STOP” switch.
When the system is canceled, the indica-
tor light will go off.
Engine immobilizer system

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Vehicles with key cylindertype ignition
switch
Vehicles with smart key system
1. Lock switch
2. Unlock switch
3. Alarm switch
4. Trunk opener switch
5. Indicator light (vehicles with smart keysystem only) The wireless remote control system is
designed to lock or unlock all the
doors, open the trunk lid, or activate
the alarm from a distance within
approximately 1 m (3 ft.) of the vehicle.
When you operate any switch, push it
slowly and securely.
Vehicles with smart key system only—
When the switch is operated, the indicator
light flashes once. If not, the battery may
be dead. Replace the battery at the earli-
est opportunity.
The wireless remote control transmitter is
an electronic component. Observe the fol-
lowing instructions in order not to cause
damage the key.
Do not leave the transmitter in 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.
Wireless remote control—

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You can use up to 4 wireless remote con-
trol transmitters (for vehicles with key cyl-
inder−type ignition switch) or 7 wireless
remote control transmitters (for vehicles
with smart key system) for the same ve-
hicle. Contact your Toyota dealer for de-
tailed information.
If the wireless remote control transmitter
does not actuate the doors, or does not
operate from a normal distance, or if the
indicator on the transmitter is dimmed or
does not come on:
Check for closeness to a radio trans-
mitter such as a radio station or an
airport which can interfere with normal
operation of the transmitter.
The battery may have been consumed.
Check the battery in the transmitter. To
replace the battery, see “—Replacing
battery” on pages 23 or 25 in this Sec-
tion.
If you lose your transmitter, contact your
Toyota dealer as soon as possible to
avoid the possibility of theft, or an acci-
dent. (See “If you lose your wireless re-
mote control transmitter” on page 323 in
Section 4.) For vehicles sold in U.S.A.
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, includ-
ing interference that may cause unde-
sired operation.
NOTICE:
This equipment has been tested and
found to comply with the limits for a
Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are
designed to provide reasonable protec-
tion against harmful interference in a
residential installation. This equipment
generates, uses and can radiate radio
frequency energy and, if not installed
and used in accordance with the instruc-
tions, may cause harmful interference to
radio communications. However, there is
no guarantee that interference will not
occur in a particular installation. If this
equipment does cause harmful interfer-
ence to radio or television reception,
which can be determined by turning the
equipment off and on, the user is en-
couraged to try to correct the interfer-
ence by one or more of the following
measures:

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Pushing the switch blows the horn in-
termittently and flashes the headlights,
tail lights and interior light.
Vehicles with smart key system only—
When pushing the switch, the indicator
light flashes.
The alarm switch is used to deter vehicle
theft when you witness anyone attempting
to break into or damage your vehicle.
The alarm will last for one minute. To stop
the alarm midway, push the switch once
again, unlock a door with the transmitter,
or set the ignition switch to ON.
The alarm does not work when the ignition
switch is set at ON.
This alarm function can be disabled. For
details, contact your Toyota dealer.You can switch the beep sound on and
off. (The beep sound is on initially and
after battery replacement.)
To switch the beep sound on and off:
With the driver ’s door opened—
1. Insert the ignition key and remove it.
2. Within 5 seconds, set the ignition switch to ON.
3. After 10 seconds, push any switch on the transmitter twice within 10 seconds.
Two beep sounds inform you that the
program has been switched on or off.
If this procedure is not followed exactly,
the beep sound will not operate as ex-
pected.
Check the beep sound on/off operation by
pushing the transmitter switch after you
finish this procedure. If the beep does not
operate as expected, repeat this proce-
dure from step 1. For replacement, use a CR2016 lithium
battery or equivalent.
CAUTION
Special care should be taken to pre-
vent small children from swallowing
the removed transmitter battery or
components.
NOTICE

When replacing the transmitter bat-
tery, be careful not to lose the com-
ponents.
 Replace only with the same or
equivalent type recommended by a
Toyota dealer.
 Dispose of used batteries according
to the local laws.
Replace the transmitter battery by follow-
ing these procedures:
—Switching beep sound
(with key cylindertype ignition
switch only)
—Replacing battery
(with key cylindertype
ignition switch)

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Be careful not to bend the electrode
when inserting the transmitter bat-
tery and that dust or oils do not
adhere to the transmitter case.
 Close the transmitter case securely.
After replacing the battery, check that the
transmitter operates properly. If the trans-
mitter still does not operate properly, con-
tact your Toyota dealer. The transmitter can easily be damaged
when replacing the battery. We recom-
mend having the battery replaced by your
Toyota dealer. If you have to do it your-
self, use a CR1632 lithium battery or
equivalent and a flat
−bladed screwdriver.CAUTION
Special care should be taken to pre-
vent small children from swallowing
the removed transmitter battery or
components.
NOTICE
 Be careful not to touch the circuit,
as this may generate static electric-
ity that can damage the transmitter.
 When replacing the transmitter bat-
tery, be careful not to lose the com-
ponents.
 Replace only with the same or
equivalent type recommended by a
Toyota dealer.
 Dispose of used batteries according
to the local laws.
Replace the transmitter battery by follow-
ing these procedures:
1. Push the release button and take out
the mechanical key.
—Replacing battery
(with smart key system)

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2. Using a flat−bladed screwdriver or
equivalent, open the transmitter case.3. Remove the discharged transmitter bat- tery by flat −bladed screwdriver or
equivalent. Insert the guide groove and
lift as shown in the above illustration.
NOTICE
Do not modify the battery case. It
may cause a trouble.
4. Put in a new battery with the positive (+) side up. Install the cover and insert
the mechanical key into the transmitter.
Close the transmitter case securely.

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NOTICE
Make sure the positive side and
negative side of the battery are
faced correctly.
 Do not replace the battery with wet
hands. Water may cause unexpected
rust.
 Do not touch or move any compo-
nents inside the transmitter, or it
may interfere with proper operation.
 Be careful not to bend the electrode
when inserting the transmitter bat-
tery and that dust or oils do not
adhere to the case.
 Close the transmitter case securely.
After replacing the battery, check that the
transmitter operates properly. If the trans-
mitter still does not operate properly, con-
tact your Toyota dealer. The smart key system consists mainly
of the following functions.
Engine immobilizer function (For de-
tails, see “Engine immobilizer system”
on page 16 in this Section.)
Wireless remote control function (For
details, see “Wireless remote control”
on page 18 in this Section.)
Push button start function (For details,
see “How to start the engine” on page
288 in Section 3.)
Entry function and start function (See
“ENTRY FUNCTION AND START
FUNCTION” described below.)
Steering lock function (See “STEERING
LOCK FUNCTION” described below.)
CAUTION
Weak radio waves emitted from the
smart key system may affect pace-
makers. If you or other passengers
use a pacemaker, use the vehicle only
after checking the pacemaker manual
to confirm that it is safe. If neces-
sary, the entry function can be dis-
abled. See “DISABLING THE SMART
KEY SYSTEM” on page 32 in this
Section.
Smart key system

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ACTUATION AREA
The entry function and start function
are available to use when a registered
key is in the actuation area.1. Entry function actuation area— About
1 m (3 ft.) from each outside door
handle and trunk opener switch.
If the key is close to the door handle,
windows and center of the rear bump-
er, the entry function may not be acti-
vated. 2. Start function actuation area—
Inside
of the cabin.
The start function may not be activated
if the key is on the instrument panel,
on the package tray, in the glove box
or on the floor, etc.
In the following cases, the smart key sys-
tem may not operate properly.
When facilities issuing strong electro-
magnetic waves such as TV towers,
electric power stations, broad casting
stations are nearby.
When you are carrying an electronic
key together with a mobile communica-
tions system such as a two −way radio
or cellular phone.
When the electronic key is in contact
with or covered by a metallic object.
When another person is operating a
wireless remote control function on
another vehicle near your vehicle.
When the battery is dead. To replace
the battery, see “—Replacing battery”
on page 25 in this Section.
Depending on the position of the key,
the key may not work well even within
the actuation area. If the smart key system does not oper-
ate properly and you cannot enter, you
can lock and unlock all the doors by
using mechanical key attached to the
master key or wireless remote control
function.