2003 TOYOTA TUNDRA ECU

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
The remote keyless entry system is
designed to lock or unlock all the
doors or activate the “PANIC” mode
from a distance within approximately 1
m (3 ft.) of the vehicle.
LOCKING AND UNLOCKING THE
DOORS
To lock and unlock all the doors, push
the switches of the transmitter slowly
and securely.
To lock: Push the “LOCK” switch. All the
doors are locked simultaneously. At this
time one beep will be heard, and the tail
lights and front side marker lights will
flash once.
Check to see that the doors are securely
locked.
If any door is not securely closed, locking
cannot be performed by the “LOCK”
switch and a beep will sound continuously
for 5 seconds. However, if the key is in
the ignition, a beep will not sound.
To stop the beep, close all the doors se-
curely or push the “UNLOCK” switch. To unlock: Push the “UNLOCK” switch
once to unlock the driver’s door alone.
Pushing the switch twice within 3 seconds
unlocks all the doors simultaneously. Each
time the “UNLOCK” switch is pushed, two
beeps will be heard, and the tail lights
and front side marker lights will flash
twice.
When the “UNLOCK” switch is pressed,
the interior light and ignition switch light
come on. The lights remain on for about
30 seconds unless any door is opened
and closed.
You have 30 seconds to open a door after
using the wireless remote unlock feature.
If a door is not opened by then, all the
doors will be automatically locked again
and one beep will be heard, and the tail
lights and front side marker lights will
flash once.
If the “LOCK” or “UNLOCK” switch is kept
pressed in, the locking or unlocking opera-
tion is not repeated. Release the switch
and then push again.
“PANIC” SWITCH
Pushing the “PANIC” switch blows the
horn intermittently, flashes the head-
lights and tail lights, and turns on the
interior light.
The “PANIC” switch is used to deter ve-
hicle theft when you witness anyone at-
tempting to break into or damage your
vehicle.
The alarm will last for one minute. To stop
alarm midway, push the “PANIC” switch
once again, lock or unlock any door with
the key or transmitter, or turn the ignition
key from the “LOCK” to “ON” position.
The “PANIC” mode does not work when
the ignition key is in the ignition switch.

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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

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
OPENING
To open the tailgate, pull the handle up.
The support cables will hold the tailgate
horizontal.
See “—Stowage precautions” in Section 2
for precautions when loading luggage.
After closing the tailgate, try pulling and
pushing it to make sure it is securely
closed.
NOTICE
Avoid driving with the tailgate open.
Support cable bracket
REMOVAL
1. Open the tailgate to the angle where you can release the brackets on the
support cables from the lugs on
both sides.
To release the support cable bracket, lift
it up and slide it off.2. Tilt the tailgate to about 30 ° from
vertical and pull up the right side of
the tailgate to unhook the right side.
Tailgate

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
3. Slide the tailgate a little to the right
to unhook the left side.
To attach the tailgate, follow the removal
procedure in reverse order.
After closing the tailgate, try pulling it to-
ward you to make sure it is securely
closed.
We recommend you keep the tailgate
closed when not in use.
NOTICE
Make sure the support brackets are
securely latched on both side panels
when installing the tailgate.
LOCKING AND UNLOCKING WITH KEY
Insert the key into the keyhole and turn
it to lock or unlock the tailgate.
To lock: Turn the key clockwise.
To unlock: Turn the key counterclockwise.To open the hood: 1. Pull the hood lock release lever. The hood will spring up slightly.
CAUTION
Before driving, be sure that the hood
is closed and securely locked. Other-
wise, the hood may open unexpected-
ly while driving and an accident may
occur.
Hood

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
2. In front of the vehicle, pull up the
auxiliary catch l ever and lift the
hood.
Before closing the hood, check to see that
you have not forgotten any tools, rags,
etc. Then lower the hood and make sure
it locks into place. If necessary, press
down gently on the front edge to lock it.TVIP is a theft deterrent system. If
someone attempts to damage or break
into your vehicle, the system sounds
the alarm while flashing the lights.SETTING THE SYSTEM
You can set the system as follows.
1. Remove the key from the ignition switch.
2. Have all passengers get out of the vehicle.
3. Close all the doors securely.
4. Lock all the doors with the key or re- mote keyless entry transmitter. At this
time, the TVIP indicator light comes
on.
The system will be set in 30 seconds.
When the system is set, the indicator
light will start to flash.
Toyota vehicle intrusion
protection system (TVIP)
(for U.S.A. only)

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
1. To open the fuel filler door, pull the
door toward out as shown.
When refueling, turn off the engine.
CAUTION
Do not smoke, cause sparks or al-
low open flames when refueling.
The fumes are flammable.
When opening the cap, do not re-
move the cap quickly. In hot weath-
er, fuel under pressure could cause
injury by spraying out of the filler
neck if the cap is suddenly re-
moved.
Do not fill a fuel container on a
plastic truck bed liner, a rubber
truck bed mat, or any other insulat-
ing material. A static electricity
charge could cause a spark and fire
hazard. The proper procedure is to
place an approved fuel container on
the ground away from the truck for
filling.
Ty p e A
Ty p e B
2. To remove the fuel tank cap, turnthe cap counterclockwise by 90 de-
grees (to the pressure point 1), and
then turn it an additional 30 degrees
(to point 2). Pause slightly before
removing it.
Although a click will be heard as you turn
the cap to point 1, it does not indicate
that the cap can be removed.
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 one click.
When you hear the click, the cap is
fully closed.
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 Toyota dealer as
soon as possible.

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
CAUTION
To reduce the risk of sliding under
the lap belt during a collision, avoid
reclining the seatback any more than
needed. The seat belts provide maxi-
mum protection in a frontal or rear
collision when the driver and the pas-
senger are sitting up straight and
well back in the seats. If you are
reclined, the lap belt may slide past
your hips and apply restraint forces
directly to the abdomen. In the event
of a frontal collision, the more the
seat is reclined, the greater the risk
of personal injury.
3. SEAT LUMBAR SUPPORT
ADJUSTING SWITCH
Push the control switch on either way.
The amount of lumbar support will change
while the switch is pushed.
For easy access to the rear seat, do
this.
Lift the seatback angle adjusting lever or
press the pedal behind the seatback.
The seatback will tilt forward.
After passengers are in, lift up the seat-
back until it locks.
CAUTION
After putting back the seatback, try
pushing the seatback forward and
rearward to make sure it is secured
in place.
Never allow anyone to rest their
foot on the press pedal while the
vehicle is moving.
—Tilting passenger ’s seatback
for rear seat entry
(access cab models)

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
Pull the seatback lock release lever and
fold down the seatback.
Hold the lever until you have swung the
seatback forward slightly.
CAUTION
When returning the seatback to the
upright position, observe the follow-
ing precautions in order to prevent
personal injury in a collision or sud-
den stop:
Make sure the seatback is securely
locked by pushing forward and rear-
ward on the top of the seatback.
Failure to do so will prevent the
seat belt from operating properly.
Make sure the seat belts are not
twisted or caught in the seatback
and are arranged in their proper
position and are ready to use.
Ty p e A
—Folding seatback
(nonsplit bench seat) Armrest