warning TOYOTA IQ 2013 Owner's Guide

248 4-3. Do-it-yourself maintenance
■Under the driver’s side instrument panel
FuseAmpereCircuit
1 ECU-IG NO.1 7.5 A Vehicle stability control system,
shift lock control system, electric
power steering, automatic head-
light system, main body ECU, tire
pressure warning system
2 GAUGE 10 A Electric cooling fan, charging sys-
tem, emergency flashers, front
passenger’s seat belt reminder
light, back-up lights, multiport fuel
injection system/sequential multi-
port fuel injection system, wind-
shield wiper ECU
3 HTR-IG 10 A Air conditioning system, rear win-
dow defogger
4 WASHER RR 10 A Windshield washer
5 WIPER RR 10 A Rear window wiper
6 WIPER FR 25 A Windshield wipers
7 WASHER FR 10 A Windshield washer
8 OBD 7.5 A On-board diagnosis system
9 DOOR NO.2 20 A Power windows

When trouble arises5
263
5-1. Essential informationEmergency flashers ......... 264
If your vehicle needs to be towed ........................ 265
If you think something is wrong ............................. 271
Fuel pump shut off system ........................... 272 5-2. Steps to take in
an emergency
If a warning light turns on or a warning buzzer
sounds... ........................ 273
If you have a flat tire......... 284
If the engine will not start ................................ 301
If the shift lever cannot be shifted from P............ 303
If you lose your keys ........ 304
If the vehicle battery is discharged ..................... 305
If your vehicle overheats ....................... 308
If the vehicle becomes stuck .............................. 311
If your vehicle has to be stopped in
an emergency ................ 313

5
When trouble arises
271
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Cont act your Scion dealer as soon as
possible.
■ Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air c onditioning system after use is
normal.)
● Flat-looking tires or uneven tire wear
● High engine coolant temperatur e warning light flashes or
comes on
● Low engine coolant temperature indicator comes on or does
not come on continuously
■ Audible symptoms
●Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
●Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, s pongy feeling, pedal almost
touches the floor

5
When trouble arises
273
5-2. Steps to take in an emergency
If a war ning light turns on or a war ning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Scion dealer.
*: Parking brake engaged warning buzzer:
The buzzer sounds to indicate that parking brake is still engaged (with the
vehicle having reached a speed of approximately 3 mph [5 km/h])
Warning lightWarning light/Details
(except Canada)
(Canada) Brake system warning li
ght (warning buzzer)*
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is
not released. If the light turns off after the parking
brake is fully released, the system is operating nor-
mally.
Calmly perform the following actions if any of the warning lights turn
on or flash. If a light turns on or flashes, but then turns off, this does
not necessarily indicate a malfunction in the system.

274 5-2. Steps to take in an emergency
Stop the vehicle immediately.The following warnings indicate the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Scion dealer.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging sys-
tem.
Low engine oil pressure warning light Indicates that the engine oil pressure is too low.
(Flashes or comes on) High engine coolant temperature warning light
Indicates the engine is almost overheating.
(P. 308)

5
When trouble arises
275
5-2. Steps to take in an emergency
Have the vehicle inspected immediately.
Failing to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Scion dealer immediately.
Warning lightWarning light/Details
(except Canada)
(Canada) Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control sys-tem; or
• The emission control system.
SRS warning light Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system.
(except Canada)
(Canada) ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system.
Electric power steerin g system warning light
Indicates a malfunction in the EPS (Electric Power
Steering) system.
Slip indicator The indicator comes on to indicates a malfunction in;
• The VSC; or
• The TRAC.

276 5-2. Steps to take in an emergency
Follow the correction procedures.After taking the specified steps to correct the suspected problem,
check that the warning light turns off.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light Indicates that a door is
not fully closed. Check that all doors are
closed.
(Flashes) Low fuel level warning
light
*1
Indicates that remaining
fuel is about 1.6 gal. (5.9
L, 1.3 Imp. gal.) or less.
Refuel the vehicle.
(On the instrument cluster) Driver’s seat belt
reminder light
(warning buzzer)
*2
Warns the driver to fasten
his/her seat belt.
Fasten the seat belt.
(On the center panel) Front passenger’s seat
belt reminder light
(warning buzzer)
*3
Warns the front passen-
ger to fasten his/her seat
belt.
Fasten the seat belt.

5
When trouble arises
277
5-2. Steps to take in an emergency
Tire pressure warning
light
When the light comes on:
Low tire inflation pressure
such as
• Natural causes (
P. 280)
• Flat tire ( P. 284) Adjust the tire inflation
pressure to the specified
level.
The light will turn off
after a few minutes. In
case the light does not
turn off even if the tire
inflation pressure is
adjusted, have the
system checked by
your Scion dealer.
When the light comes on
after blinking for 1 minute:
Malfunction in the tire
pressure warning system.
(  P. 281) Have the system
checked by your Scion
dealer.
Low washer fluid warn-
ing light
Low level of washer fluid Fill the tank.
Warning lightWarning light/DetailsCorrection procedure

278 5-2. Steps to take in an emergency
*1: When filled with less than 2.6 gal. (10 L, 2.2 Imp.gal.) per refueling, the fuelgauge may not display accurately.
*2: Driver’s seat belt reminder:
The driver’s seat belt reminder sounds to alert the driver that his or her seat
belt is not fastened. Once the engine switch is turned to the ON or START
position, the buzzer sounds for 6 seconds. If the vehicle has reached a
speed of at least 12 mph (20 km/h), the buzzer sounds intermittently for
approximately 10 seconds. Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for approximately 20 more seconds.
(except Canada)
Maintenance required
reminder light
Indicates that mainte-
nance is required accord-
ing to the driven distance
on the maintenance
schedule.
*4
Illuminates for about 3
seconds and then flashes
for about 15 seconds
approximately 4500 miles
(7200 km) after the main-
tenance data has been
reset. If necessary, perform
maintenance.
Comes on and remains
on if the distance driven
exceeds 5000 miles
(8000 km) after the main-
tenance data has been
reset.
(The indicator will not
work properly unless the
maintenance data has
been reset.) Perform the necessary
maintenance.
Please reset the mainte-
nance data after the
maintenance is per-
formed. (
P. 188)
Warning lightWarning light/DetailsCorrection procedure

5
When trouble arises
279
5-2. Steps to take in an emergency
*3:Front passenger’s seat belt reminder:
The front passenger’s seat belt reminder sounds to alert the front passenger
that his or her seat belt is not fastened. The buzzer sounds intermittently for
approximately 10 seconds after the vehicle has reached a speed of at least
12 mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for approximately 20 more seconds.
*4: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s ManualSupplement” for the maintenance interval applicable to your vehicle.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag
sensors, side and curtain shield airbag sensors, curtain shield airbag sen-
sors, rear airbag sensors, driver’s seat position sensor, driver’s seat belt
buckle switch, front passenger occupant classification system (ECU and
sensors), AIR BAG ON indicator light, AIR BAG OFF indicator light, front
passenger’s seat belt buckle switch, seat belt pretensioner assemblies, air-
bags, interconnecting wiring and power sources. ( P. 275)
■ Key reminder buzzer
The buzzer indicates that the key has not been removed with the engine
switch in the ACC or LOCK position and the driver’s door opened.
■ Electric power steering system warning light
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may comes on.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after taking several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Scion dealer as soon as possible.