warning light TOYOTA IQ 2012 User Guide

5When trouble arises
385
iQ_WE_74014E
5-1. Essential information
Emergency flashers .......... 386
If your vehicle needs
to be towed ..................... 388
If you think something
is wrong .......................... 395
Fuel pump shut off
system ............................ 3965-2. Steps to take
in an emergency
If a warning light turns on
or a warning buzzer
sounds... ......................... 397
If you have a flat tire ......... 405
If the engine will
not start........................... 423
If the shift lever cannot
be shifted from P
(vehicles with
a Multidrive) .................... 425
If you lose your keys ......... 426
If the electronic key does
not operate properly
(vehicles with smart
entry & start system)....... 427
If the vehicle battery is
discharged ...................... 430
If your vehicle
overheats ........................ 435
If the vehicle becomes
stuck ............................... 438
If your vehicle has
to be stopped
in an emergency ............. 440

5
395
5-1. Essential information
When trouble arises
iQ_WE_74014E
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional, as
soon as possible.
Visible symptoms
Fluid leaks under the vehicle
(Water dripping from the air conditioning system after use is
normal.)
Flat-looking tires or uneven tire wear
High engine coolant temperature 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, spongy feeling, pedal almost
touches the floor

5
397
When trouble arises
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5-2. Steps to take in an emergency
If a war ning light tur ns on or a warning 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 any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
*: Parking brake engaged warning buzzer:
The buzzer sounds to indicate that parking brake is still engaged (with the
vehicle having reached a speed of 5 km/h [3 mph])
Warning lightWarning light/Details
Brake system warning light (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 normally.
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.

398 5-2. Steps to take in an emergency
iQ_WE_74014E
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 any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
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 any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional, immedi-
ately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low.
(Flashing or
comes on)High engine coolant temperature warning light
Indicates the engine is almost overheating. (P. 435)
Warning lightWarning light/Details
Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic Multidrive control system; or
• The emission control system.

5
399 5-2. Steps to take in an emergency
When trouble arises
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Follow the correction procedures.
After taking the specified steps to correct the suspected problem,
check that the warning light turns off.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system.
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system.
Electric power steering warning light (warning buzzer)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system.
Slip indicator
The indicator comes on to indicates a malfunction in:
• The VSC system; or
• The TRC system.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
Indicates that a door is not fully
closed.Check that all doors are
closed.
(Flashing)Low fuel level warning light
*1
Indicates that remaining fuel is
about 5.9 L (1.6 gal., 1.3 Imp.
gal.) or less.Refuel the vehicle.
Warning lightWarning light/Details

400 5-2. Steps to take in an emergency
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*1: When filled with less than 10 L per refueling, the fuel gauge may not display
accurately.
*2: Driver’s and front passenger’s seat belt reminders:
The driver’s and front passenger’s seat belt reminder sounds to alert the
driver and front passenger that his or her seat belt is not fastened. The
buzzer sounds for 30 seconds after the vehicle has reached a speed of at
least 20 km/h (12 mph). Then, if the seat belt is still unfastened, the buzzer
will sound in a different tone for 90 more seconds. (On the instru-
ment 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)
*2
Warns the front passenger to
fasten his/her seat belt.Fasten the seat belt.
(On the center
panel)Rear passenger’s seat belt
reminder light
(vehicles with rear
passenger’s seat)
(warning buzzer)
*3
Warns the rear passenger to
fasten his/her seat belt.Fasten the seat belt.
Warning lightWarning light/DetailsCorrection procedure
*4
*5
*4
*5
*6
*6

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401 5-2. Steps to take in an emergency
When trouble arises
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*3: Rear passenger’s seat belt reminders:
The rear passenger’s seat belt reminder sounds to alert the rear passenger
that his or her seat belt is not fastened. The buzzer sounds for 30 seconds
after the vehicle has reached a speed of at least 20 km/h (12 mph). Then, if
the seat belt is still unfastened, the buzzer will sound in a different tone for
90 more seconds.
*4: Left-hand drive vehicles with audio system
*5: Right-hand drive vehicles with audio system
*6: Vehicles without audio system
Follow the correction procedures. (vehicles with smart entry & start system)
After taking the specified steps to correct the suspected problem,
check that the warning light turns off.
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection
procedure
OnceSmart entry & start
system warning light
Indicates that the elec-
tronic key is not pres-
ent when the “ENGINE
START STOP” switch
is pressed.Confirm the
location of the
electronic key.
Once 3 timesSmart entry & start
system warning light
Indicates that a door
other than the driver’s
door has been opened
and closed with the
“ENGINE START
STOP” switch in any
mode other than OFF
and the electronic key
outside of the detec-
tion area.Confirm the
location of the
electronic key.

402 5-2. Steps to take in an emergency
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Once 3 timesSmart entry & start
system warning light
Vehicles with a Multi-
drive
Indicates that the
driver’s door has
been opened or
closed with the shift
lever in P, the
“ENGINE START
STOP” switch in any
mode other than
OFF, and the elec-
tronic key outside of
the detection area.
Vehicles with a man-
ual transmission
Indicates that the
driver’s door has
been opened or
closed, the “ENGINE
START STOP” switch
in any mode other
than OFF, and the
electronic key out-
side of the detection
area.Turn the
“ENGINE
START STOP”
switch OFF or
confirm the
location of the
electronic key.
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection
procedure

5
403 5-2. Steps to take in an emergency
When trouble arises
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Continuous Continuous
Smart entry & start
system warning light
Vehicles with a Multi-
drive only
Indicates that the
driver’s door has
been opened or
closed (with the shift
lever not in P, the
“ENGINE START
STOP” switch in any
mode other than OFF
and the electronic
key outside of the
detection area).• Shift the shift
lever to P.
• Confirm the
location of the
electronic key.

Continuous
(10 seconds)
Smart entry & start
system warning light
Indicates that the
“ENGINE START
STOP” switch is in any
mode other than OFF
and the lock button on
the electronic key was
pressed while it was
outside the vehicle.Turn the
“ENGINE
START STOP”
switch OFF
and lock the
doors again.
OnceSmart entry & start
system warning light
Indicates that an
authentic electronic
key is not inside the
vehicle when the vehi-
cle is started.Confirm that
the electronic
key is inside
the vehicle.
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection
procedure

404 5-2. Steps to take in an emergency
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If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empty, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped
professional as soon as possible.
Front passenger detection sensor and passenger seat belt reminder
If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash, even if a passen-
ger is not sitting in the seat.
If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.
Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and
warning buzzer may sound.
Customization that can be configured at any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features P. 459)
CAUTION
When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.