2003 TOYOTA 4RUNNER warning light

’03 4Runner_U (L/O 0305)
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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

’03 4Runner_U (L/O 0305)
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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Cruise control indicator light∗
5
Center differential lock indicator light∗3
(fourwheel drive models) Automatic transmission indicator lights
(5speed)
Traction control system off indicator light
(twowheel drive models) Vehicle stability control system off indicator light
(fourwheel drive models)
Slip indicator light
Turn signal indicator lights
Low speed fourwheel drive indicator light∗ 3
(fourwheel drive models)
Downhill assist control system indicator light
(fourwheel drive models)
Height control “OFF” indicator light
∗4
Height control indicator lights
∗1: For details, see “Service reminder indicators and warning
buzzers” on page 117 in Section 15.
∗2: If this light flashes, see “Fourwheel drive system” on page
141 in Section 16.
∗3: If this light flashes, see “Fourwheel drive system” on page
138 and on page 141 in Section 16.
∗4: If this light flashes, see “Rear height control air suspension”
on page 158 in Section 16.
∗5: If this light flashes, see “Cruise control” on page 164 in
Section 16.
Headlight high beam indicator light
Automatic transmission indicator lights
(4speed)
Fourwheel drive indicator light∗2
(multimode fourwheel drive models)

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
This indicator comes on when the igni-
tion key is turned to the “ON” position.
It goes off after about 6 seconds. This
means the front seat belt pretensioners
are operating properly.
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front seat belt pretensioner
assemblies, inflators, warning light, inter-
connecting wiring and power sources. (For
details, see “Service reminder indicators
and warning buzzers” on page 117 in Sec-
tion 15.)The front seat belt pretensioner system
mainly consists of the following compo-
nents and their locations are shown in the
illustration.
1. Front airbag sensors
2. SRS warning light
3. Front seat belt pretensioner assemblies
4. Airbag sensor assembly
The front seat belt pretensioners are con-
trolled by the airbag sensor assembly. The
airbag sensor assembly consists of a saf-
ing sensor and airbag sensor. When the front seat belt pretensioners are
activated, an operating noise may be
heard and a small amount of smokelike
gas may be released. This gas is harm-
less and does not indicate that a fire is
occurring.
Once the front seat belt pretensioners
have been activated, the seat belt retrac-
tors remain locked.
CAUTION
Do not modify, remove, strike or open
the front seat belt pretensioner as-
semblies, airbag sensor or surround-
ing area or wiring. Doing so may
cause sudden operation of the front
seat belt pretensioners or disable the
system, which could result in death
or serious injury.
Failure to follow these instructions
can result in death or serious inju-
ries. Consult your Toyota dealer
about any repairs and modifications.

’03 4Runner_U (L/O 0305)
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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
This indicator comes on when the igni-
tion key is turned to the “ON” position.
It goes off after about 6 seconds. This
means the SRS airbags are operating
properly.
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front seat belt pretensioner
assemblies, inflators, warning light, inter-
connecting wiring and power sources. (For
details, see “Service reminder indicators
and warning buzzers” on page 117 in Sec-
tion 15.) The SRS front airbags are designed to
deploy in severe (usually frontal) colli-
sions where the magnitude and duration
of the forward deceleration of the ve-
hicle exceeds the designed threshold
level.
The SRS front airbags will deploy if the
severity of the impact is above the de-
signed threshold level, comparable to an
approximate 25 km/h (15 mph) collision
when the vehicle has the impact straight
into a fixed barrier that does not move or
deform.
However, this threshold velocity will be
considerably higher if the vehicle strikes
an object, such as a parked vehicle or
sign pole, which can move or deform on
impact, or if the vehicle is involved in an
underride collision (e.g. a collision in
which the front of the vehicle “underrides”,
or goes under, the bed of a truck, etc.).
It is possible that in some collisions
where the forward deceleration of the ve-
hicle is very close to the designed thresh-
old level, the SRS front airbags and the
seat belt pretensioners may not activate
together.
Always wear your seat belts properly.
Collision from the rear
Collision from the side Vehicle rollover
The SRS front airbags are generally not
designed to inflate if the vehicle is in-
volved in a side or rear collision, if it
rolls over, or if it is involved in a low
speed frontal collision. But, when ever a
collision of any type causes sufficient
forward deceleration of the vehicle, de-
ployment of the SRS front airbags may
occur.

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Hitting a curb, edge
of pavement or
hard materialFalling into or
jumping over
a deep hole
Landing hard or vehicle falling
The SRS front airbags may also deploy
if a serious impact occurs to the under-
side of your vehicle. Some examples
are shown in the illustration.The SRS airbag system mainly consists of
the following components, and their loca-
tions are shown in the illustration. 1. Front airbag sensors
2. SRS warning light
3. Airbag module for front passenger (airbag and inflator)
4. Driver ’s seat belt buckle switch
5. Driver ’s seat position sensor
6. Airbag sensor assembly
7. Airbag module for driver (airbag and inflator)
The airbag sensor assembly consists of a
safing sensor and airbag sensor. The airbag sensors constantly monitor the
forward deceleration of the vehicle. If an
impact results in a forward deceleration
beyond the designed threshold level, the
system triggers the airbag inflators. At this
time a chemical reaction in the inflators
very quickly fills the air
bags with nontox-
ic gas to help restrain the forward motion
of the occupants. The airbags then quickly
deflate, so that there is no obstruction of
the driver ’s vision should it be necessary
to continue driving.
When the airbags inflate, they produce a
loud noise and release some smoke and
residue along with nontoxic gas. This
does not indicate a fire. This smoke may
remain inside the vehicle for some time,
and may cause some minor irritation to
the eyes, skin or breathing. Be sure to
wash off any residue as soon as possible
to prevent any potential skin irritation with
soap and water. If you can physically and
safely exit the vehicle after a collision,
you should do so at the first opportunity.

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
In response to a severe side impact, the
SRS side airbags and curtain shield air-
bags work with the seat belts to help
reduce injury by inflating. The SRS side
airbags help to reduce injuries mainly to
the driver ’s or front passenger ’s chest and
the SRS curtain shield airbags help to
reduce injuries mainly to the driver ’s, front
passenger ’s or rear outside passenger ’s
head. The SRS side airbag and curtain
shield airbag on the passenger side are
activated even with no passenger in the
front seat or rear seat.
The curtain shield airbags may activate
even when the side airbags are not acti-
vated.
Be sure to wear your seat belt properly.
Your vehicle is equipped with a crash
sensing and diagnostic module, which will
record the use of the seat belt restraint
system by the driver and front pass enger
when the SRS side airbags and curtain
shield airbags are inflated.CAUTION
SRS side airbags and curtain shield
airbags inflate with considerable
force. To avoid potential death or se-
rious injury when they inflate, the
driver, front passenger and rear out-
side passengers must:
Wear their seat belts properly.
Remain properly seated with their
back upright and against the seat at
all times.
This indicator comes on when the igni-
tion key is turned to the “ON” position.
It goes off after about 6 seconds. This
means the SRS side airbags and curtain
shield airbags are operating properly.
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front seat belt pretensioner
assemblies, inflators, warning light, inter-
connecting wiring and power sources. (For
details, see “Service reminder indicators
and warning buzzers” on page 117 in Sec-
tion 15.)

’03 4Runner_U (L/O 0305)
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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
The SRS side airbag and curtain shield
airbag system may not inflate if the
vehicle is subjected to a collision from
the side at certain angles, or a collision
to the side of the vehicle body other
than the passenger compartment as
shown in the illustration.
The SRS side airbags and curtain shield
airbags are designed to inflate when the
passenger compartment area suffers a se-
vere impact from the side.
Always wear your seat belts properly.
Collision from the rear
Vehicle rollover
Collision from the front
The SRS side airbags and curtain shield
airbags are not designed to inflate if
the vehicle is involved in a front or
rear collision, if it rolls over, or if it is
involved in a lowspeed side collision.The SRS side airbag and curtain shield
airbag system consists mainly of the fol-
lowing components, and their locations are
shown in the illustration.
1. SRS warning light
2. Curtain shield airbag modules (airbag and inflator)
3. Side airbag modules (airbag and inflator)
4. Curtain shield airbag sensors
5. Side and curtain shield airbag sensors
6. Airbag sensor assembly