2003 TOYOTA 4RUNNER engine

’03 4Runner_U (L/O 0305)
i
2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Foreword
Welcome to the growing group of valueconscious people who drive Toyotas. We are proud of the advanced engineering and
quality construction of each vehicle we build.
This Owner ’s Manual explains the operation of your new Toyota. Please read it thoroughly and have all the occupants
follow the instructions carefully. Doing so will help you enjoy many years of safe and troublefree motoring. For
important information about this manual and your Toyota, read the following pages carefully.
When it comes to service, remember that your Toyota dealer knows your vehicle best and is interested in your complete
satisfaction. He will provide quality maintenance and any other assistance you may require.
If there is not a Toyota dealer near you, or you need emergency assistance for any reason, please call the following number:
U.S. OWNERS:Toyota Customer Assistance Center Tollfree: 18003314331
CANADIAN OWNERS:Toyota Canada Customer Interaction Centre Tollfree: 1888TOYOTA8 (18888696828)
Please leave this Owner ’s Manual in this vehicle at the time of resale. The next owner will need this information also.
All information and specifications in this manual are current at the time of printing. However, because of Toyota’s policy of
continual product improvement, we reserve the right to make changes at any time without notice.
Please note that this manual applies to all models and explains all equipment, including options. Therefore, you may
find some explanations for equipment not installed on your vehicle.
©2003 TOYOTA MOTOR CORPORATION
All rights reserved. This material may not be reproduced or copied, in whole or in part, without the written permission of Toyo ta
Motor Corporation.

’03 4Runner_U (L/O 0305)
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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
1. Instrument panel light control dial
2. Headlight, turn signal and front fog
light switches
3. Audio remote control switches
4. Wiper and washer switches
5. Power back window switch
6. Car audio
7. Front passenger ’s seat belt reminder light
8. Engine immobiliser/theft deterrent system indicator light
9. Multiinformation display
10. Emergency flasher switch 11. Air conditioning controls
12. Auxiliary box
13. Back window and rear view mirror defogger switch
14. Fourwheel drive control switch knob (fulltime fourwheel drive models) or
multimode control switch knob
(multimode fourwheel drive models)
15. Ignition switch
16. Cruise control switch
17. Hood lock release lever

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
1. Trip meter reset button
2. Tachometer
3. Service reminder indicators and
indicator lights 4. Speedometer
5. Fuel gauge
6. Low fuel level warning light
7. Engine coolant temperature gauge
8. Odometer and two trip meters
9. Odometer/two trip meter changeover
button
Instrument cluster overview

’03 4Runner_U (L/O 0305)
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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
or
Driver ’s seat belt reminder light∗
1
Low engine oil pressure warning light∗1
Engine oil replacement reminder light∗1
(for vehicles sold in U.S.A.) Brake system warning light
∗ 1
Malfunction indicator lamp∗1
Discharge warning light∗1
Antilock brake system warning light∗1
SRS warning light∗1
Open door warning light∗1
Front passenger ’s seat belt reminder light∗1
Vehicle stability control system warning
light∗1
Traction control system warning light∗1
(twowheel drive models)
Active traction control system warning light∗1
(fourwheel drive models)
Downhill assist control system warning
light∗1 (fourwheel drive models)
Hillstart assist control system warning
light∗1
Automatic transmission fluid temperature
warning light∗1
Low windshield washer fluid level warning
light∗1 (for vehicles sold in Canada)
Engine immobiliser/theft deterrent system
indicator light
Indicator symbols on the instrument panel

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Keys and Doors
Keys 10
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Engine immobiliser system 12
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Side doors 14
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Power windows 23
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Power back window 26
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Back door 29
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Hood 31
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Theft deterrent system 31
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Fuel tank cap 33
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Electric moon roof 35
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SECTION 1 2

’03 4Runner_U (L/O 0305)
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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Your vehicle is supplied with the two
kinds of keys.
1. Master keys (black)—These keys work in every lock. Your Toyota dealer will
need one of them to make a new key
with a builtin transponder chip.
2. Sub key (gray)—This key does not work in the glove box.
A transponder chip for engine immobiliser
system has been placed in the head of
the master and sub keys. These chips are
needed to enable the system to function
correctly, 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 items locked in the glove box
when using valet parking, leave the sub
key with the attendant.
Since the side doors can be locked with-
out a key, you should always carry a
spare key in case you accidentally lock
your keys inside the vehicle.NOTICE
When using a key containing a trans-
ponder 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.
Keys

’03 4Runner_U (L/O 0305)
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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
When starting the engine, do not
use the key with other transponder
keys around (including keys of oth-
er vehicles) and do not press other
key plates against the key grip.
Otherwise the engine may not start,
or may stop soon after it starts. If
this happens, remove the key once
and then insert it again after remov-
ing other transponder keys (includ-
ing keys of other vehicles) from the
ring or while gripping or covering
them with your hand to start the
engine.Do not bend the key grip.
Do not cover the key grip with any
material that cuts off electromagnet-
ic 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 electromag-
netic materials.

’03 4Runner_U (L/O 0305)
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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
KEY NUMBER PLATE
Your key number is shown on the plate.
Keep the plate in a safe place such as
your wallet, not in the vehicle.
If you should lose your keys or if you
need additional keys, duplicates can be
made by a Toyota dealer using the key
number.
We recommend writing down the key num-
ber and storing it in a safe place.The engine immobiliser system is a
theft prevention system. When you in-
sert the key in the ignition switch, the
transponder chip in the key’s head
transmits an electronic code to the ve-
hicle. The engine will start only when
the electronic code in the chip corre-
sponds to the registered ID code for
the vehicle.The system is automatically set when the
key is removed from the ignition switch.
The indicator light will start flashing to
show the system is set.
If any of the following indicator conditions
occurs, contact your Toyota dealer.
The indicator light stays on except
when the theft deterrent system is set-
ting or activating. (See “Theft deterrent
system” on page 31 in this Section.)
The indicator light does not start flash-
ing when the key is removed from the
ignition switch.
The indicator light flashes unsteady.
Engine immobiliser system