2003 TOYOTA TUNDRA battery

’03 TUNDRA_U (L/O 0307)
16
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
REMOTE KEYLESS ENTRY
TRANSMITTER
The remote keyless entry transmitter is an
electronic component. Observe the follow-
ing instructions in order not to cause dam-
age to the transmitter.
Do not leave the transmitter 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.
You can use up to 4 remote keyless entry
transmitters for the same vehicle. Contact
your Toyota dealer for detailed information.
If the remote keyless entry transmitter
does not actuate the doors or alarm, or
operate from a normal distance:
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
TRANSMITTER BATTERY”. 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 remote key-
less entry transmitter” in Section 4.)
MODEL/FCC ID: BAB237131056
CAN: 2024 102 1519
MADE IN JAPAN
This complies with Part 15 of the FCC
rules. Operation is subject to the follow-
ing 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.
REPLACING TRANSMITTER BATTERY
For replacement, use a CR2025 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:

’03 TUNDRA_U (L/O 0307)
18
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
4. Put a new transmitter battery with posi-
tive (+) side up.
Place the rubber gasket back on the
transmitter. Then close the transmitter
case securely.
NOTICE
 Make sure the positive side and
negative side of the transmitter bat-
tery 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 of the transmitter, or
it may interfere with proper opera-
tion.
 Be careful not to bend the electrode
of the transmitter battery insertion
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 windows can be operated with the
switch on either front door.
The power windows work when the ignition
switch is in the “ON” position.
Key off operation: If both front doors are
closed, they work for 43 seconds even
after the ignition switch is turned off. They
stop working when either front door is
opened.
OPERATING THE DRIVER’S WINDOW
Use the switch on the driver’s door.
Normal operation: The window moves as
long as you hold the switch.
To open: Lightly push down the switch.
To close: Pull up the switch.
Power windows

’03 TUNDRA_U (L/O 0307)
25
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
5. Make sure that the indicator light
flashes. Then you may leave the ve-
hicle.
Never leave anyone in the vehicle when
you set the system because unlocking
from the inside activates the alarm.
Activating the alarm
If the system detects a threat to the
vehicle, blows the horn intermittently
for one minute while flashing head-
lights, tail lights and front side marker
lights, and turns on the interior light.
The system detects a threat under any of
the following conditions:
Either of the front doors is unlocked by
means other than the key or remote
keyless entry transmitter.
If the key is not in the ignition switch,
all the doors will be automatically
locked again.
Any of the doors is forcibly opened.
The side windows are tapped or bro-
ken.
The battery terminal is disconnected
and then reconnected.
The ignition is hotwired. After one minute, the alarm automatically
stops and the indicator light starts flashing
again.
Reactivating the alarm
Once set, until you cancel the system, the
system automatically resets the alarm af-
ter the alarm has stopped.
The alarm will activate again under the
same circumstances described in “Activat-
ing the alarm”.
Stopping the alarm
You can stop the alarm in either of the
following ways:
Unlock any of the doors with the key
or remote keyless entry transmitter.
Place the ignition switch in the “ON”
position.
CANCELLING THE SYSTEM
You can cancel the system as described
in “Stopping the alarm”.
If you cancel the system by unlocking any
of the doors but no door is opened within
30 seconds, all the doors lock automati-
cally and the system will be set again. NOTE: If your vehicle’s tail lights and
front side marker lights turn on
and the buzzer sounds for 2 sec-
onds when the system is can-
celed, the trigger memory was ac-
tivated; an alarm was triggered
while you were away from the ve-
hicle.
TESTING THE SYSTEM
You can check the system operation as
follows.
1. Open all the windows.
2. Set the system as described in “SETTING THE SYSTEM”.
3. Unlock the driver’s door with the inside lock knob. The system should activate
and the alarm should sound.
4. Stop the alarm as described in “Stop- ping the alarm”.
5. Repeat steps 2 to 4 for the passen- ger ’s door.
If the system does not work properly,
have it checked by your Toyota dealer.

’03 TUNDRA_U (L/O 0307)
55
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
SRS airbag system in some cases.
Installation of electronic devices
such as a mobile twoway radio,
cassette tape player or compact
disc player
 Modification of the suspension sys-
tem
 Modification of the front end struc-
ture
 Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end
 Repairs made on or near the front
fenders, front end structure, con-
sole, steering column, steering
wheel or dashboard near the front
passenger airbag
This SRS airbag system has a service
reminder indicator to inform the driver of
operating problems. If either of the follow-
ing conditions occurs, this indicates a
malfunction of the airbags. Contact your
Toyota dealer as soon as possible to
service the vehicle.
The light does not come on when the
ignition key is turned to the “ON” posi-
tion, or the light remains on.
The light comes on or flashes while
driving.
In the following cases, contact your Toyota
dealer as soon as possible:
The SRS airbags have been inflated.
The front of the vehicle (shaded in the
illustration) was involved in an accident
that was not severe enough to cause
the SRS airbags to inflate.
The pad section of the steering wheel
or front passenger airbag cover
(shaded in the illustration) is scratched,
cracked, or otherwise damaged.
NOTICE
Do not disconnect the battery cables
before contacting your Toyota dealer.

’03 TUNDRA_U (L/O 0307)
92
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
HEADLIGHTS
To turn on the following lights: Twist
the headlight/turn signal lever knob.
Position 1—Parking, tail, license plate and
instrument panel lights
Position 2—Headlights and all of the
above
The lights automatically turn off when the
driver ’s door is opened with the ignition
turned off. To turn them on again, turn the
key to the “ON” position or actuate the
headlight switch. If you are going to park
for over one week, make sure the head-
light switch is off.
NOTICE
To prevent the battery from being dis-
charged, do not leave the lights on
for a long period when the engine is
not running.
Daytime running light system (on some
models)
The headlights turn on at reduced intensi-
ty when the parking brake is released with
the engine started, even with the light
switch in the “OFF” position. They will not
go off until the ignition switch is turned
off.
To turn on the other exterior lights and
instrument panel lights, twist the knob to
the position 1.
Twist the knob to the position 2 to turn
the headlights to full intensity for driving
at night.
HighLow beams—For high beams, turn
the headlights on and push the lever away
from you (position 1). Pull the lever to-
ward you (position 2) for low beams.
The headlight high beam indicator light
(blue light) on the instrument panel will
tell you that the high beams are on.
Flashing the high beam headlights
(position 3)—Pull the lever all the way
back. The high beam headlights turn off
when you release the lever.
You can flash the high beam headlights
with the knob turned to “OFF”.

Headlights and turn signals

’03 TUNDRA_U (L/O 0307)
93
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
TURN SIGNALS
To signal a turn, push the headlight/
turn signal lever up or down to position
1.
The key must be in the “ON” position.
The lever automatically returns after you
make a turn, but you may have to return
it by hand after you change lanes.
To signal a lane change, move the lever
up or down to the pressure point (position
2) and hold it.
If the turn signal indicator lights (green
lights) on the instrument panel flash faster
than normal, a front or rear turn signal
bulb is burned out.To turn on the emergency flashers,
push the switch.
All the turn signal lights will flash. To turn
them off, push the switch once again.
Turn on the emergency flashers to warn
other drivers if your vehicle must be
stopped where it might be a traffic hazard.
Always pull as far off the road as pos-
sible.
The turn signal light switch will not work
when the emergency flashers are operat-
ing.
NOTICE
To prevent the battery from being dis-
charged, do not leave the switch on
longer than necessary when the en-
gine is not running.
Emergency flashers

’03 TUNDRA_U (L/O 0307)
96
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
The cargo lamp is designed to light up
the rear deck of your vehicle.
CARGO LAMP OPERATION
By pushing “CARGO LAMP” switch
To turn on: Push the “CARGO LAMP”
switch once.
At this time, the indicator light on the
instrument panel will come on.
To turn off: Push the “CARGO LAMP”
switch once again.
By locking and unlocking doors (ve-
hicles with the power door lock system)
You can operate the cargo lump by this
method when all the doors are closed and
the ignition switch is in the “ACC” or
“LOCK” position or the key is removed.
To turn on: Unlock the doors with the key,
the power door lock switch or the remote
keyless entry transmitter.
The cargo lamp will automatically turn off
after 20 seconds.
To turn off: Lock the doors with the key,
the power door lock switch or the remote
keyless entry transmitter. By opening and closing doors
To turn on: Open any of the doors.
To turn off: Close all the doors:
When the ignition switch is in the “ON”
position, the cargo lamp will go off im-
mediately.
When the ignition switch is in the
“ACC” or “LOCK” position or the key is
removed, the cargo lamp will automati-
cally go off after 20 seconds.
CARGO LAMP AUTOMATIC POWEROFF
FUNCTION
When the vehicle speed exceeds
approximately 5 km/h (3 mph), the car-
go lamp will go off.
To prevent the battery being dis-
charged, the cargo lamp will automati-
cally go off when the lamp remains on
for 30 minutes or more.
To turn on the windshield wipers, move
the lever to the desired setting.
The key must be in the “ON” position.
Lever position
Speed setting
Position 1Intermittent
Position 2Slow
Position 3Fast
The “INT TIME” band lets you adjust the
wiping time interval when the wiper lever
is in the intermittent position (position 1).
Twist the band upward to increase the
time between sweeps, and downward to
decrease it.
Windshield wipers and washer
(intermittent type)

’03 TUNDRA_U (L/O 0307)
98
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
To defog or defrost the outside rear
view mirrors, push the switch.
The key must be in the “ON” position.
The heater panels in the outside rear view
mirrors will quickly clear the mirror sur-
faces. An indicator light will illuminate to
indicate the mirror heaters are operating.
Push the switch once again to turn the
mirror heaters off.
The system will automatically shut off af-
ter the mirror heaters have operated about
15 minutes.
CAUTION
Since the mirror surfaces can get hot,
do not touch them when the switch
is on.
Make sure you turn the mirror heaters off
when the mirror surfaces are clear. Leav-
ing the mirror heaters on for a long time
could cause the battery to discharge, es-
pecially during stop−and− go driving. The
mirror heaters are not designed for drying
rain water or for melting snow.
If the outside rear view mirrors are heavi-
ly coated with ice, use a spray de −icer
before operating the switch.
Outside rear view mirror
heaters