engine TOYOTA IQ 2012 Owners Manual

369 4-3. Do-it-yourself maintenance
4
Maintenance and care
iQ_WE_74014EEngine compartment (type C: if equipped)
*: Replace the fuse with one of the same ampere rating as the original.
FuseAmpereCircuit
1(PTC NO.1)30 A
*PTC heater
50 A
*PTC heater
2 (PTC NO.3) 30 A PTC heater
3(DEICER) 20 A No circuit
(PWR HTR) 25 A No circuit
4 (PTC NO.2) 30 A PTC heater
5 (H-LP RH LO) 10 A Right-hand headlight (low beam)
6 (H-LP LH LO) 10 A Left-hand headlight (low beam)

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
387 5-1. Essential information
When trouble arises
iQ_WE_74014E
NOTICE
To prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the
engine is not running.
Vehicles with automatic air conditioning system
Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.

388
5-1. Essential information
iQ_WE_74014E
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission. Contact
any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional, before towing.
The engine is running, but the vehicle will not move.
The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by
any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional, such as or a commercial towing service,
using a lift-type truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all state/pro-
vincial and local laws.
If towing from the front, the vehicle’s rear wheels and axles must be
in good condition. (P. 392)
If they are damaged, use a towing dolly or flat bed truck.

5
389 5-1. Essential information
When trouble arises
iQ_WE_74014E
Emergency towing
If a tow truck is not available, in an emergency your vehicle may be
temporarily towed using a cable or chain secured to the emergency
towing eyelet. This should only be attempted on hard, surfaced roads
for short distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The
vehicle’s wheels, drive train, axles, steering and brakes must be in
good condition.
Towing eyelet
Emergency towing procedure
Start the engine.
Vehicles without smart entry & start system:
If the engine cannot be started, turn the engine switch to the ACC
or ON position.
Vehicles with smart entry & start system:
If the engine cannot be started, press the “ENGINE START STOP”
switch to change to the ACCESSORY or IGNITION ON mode.
Put the shift lever in N.
Release the parking brake.

390 5-1. Essential information
iQ_WE_74014E
Installing towing eyelet
Remove the eyelet cover using a
flathead screwdriver.
To protect the bodywork, place a
rag between the screwdriver and
the vehicle body, as shown in the
illustration.
CAUTION
Caution while towing
Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelet and the cables or chains. Always
be cautious of the surroundings and other vehicles while towing.
If the engine is not running, the power assist for the brakes and steering
will not function, making steering and braking more difficult.
NOTICE
To prevent serious damage to the transmission
(vehicles with a Multidrive)
Never tow this vehicle from the rear with the front wheels on the ground.
This may cause serious damage to the transmission.
When towing a vehicle without using a towing dolly
(vehicles with a manual transmission)
Vehicles without smart entry & start system:
Do not tow the vehicle with the key removed or in the LOCK position.
Vehicles with smart entry & start system:
Do not tow the vehicle with the “ENGINE START STOP” switch OFF.

5
393 5-1. Essential information
When trouble arises
iQ_WE_74014E
Towing with a wheel lift-type truck from the rear
Vehicles with a Multidrive: Use a
towing dolly under the front
wheels.
Vehicles with a manual transmis-
sion: We recommend the use of
a towing dolly under the front
wheels.
Vehicles without smart entry &
start system: When not using a
towing dolly, turn the engine
switch to the ACC position and
shift the shift lever to N.
Vehicles with smart entry & start
system: When not using a towing
dolly, turn the “ENGINE START
STOP” switch to the ACCES-
SORY or IGNITION ON mode
and shift the shift lever to N.
NOTICE
To prevent serious damage to the transmission
(vehicles with a Multidrive)
Never tow this vehicle from the rear with the front wheels on the ground.

394 5-1. Essential information
iQ_WE_74014E
Using a flat bed truck
If your Toyota is transported by a
flat bed truck, it should be tied
down at the locations shown in
the illustration.
If you use chains or cables to tie
down your vehicle, the angles
indicated by triangles must be
45.
Do not overly tighten the tie
downs or the vehicle may be
damaged.
Apply the parking brake firmly.
NOTICE
To prevent damage to the vehicle
(vehicles with a manual transmission)
Vehicles without smart entry & start system: Do not tow the vehicle from
the rear with the key removed or in the LOCK position. The steering lock
mechanism is not strong enough to hold the front wheel straight.
Vehicles with smart entry & start system: Do not tow the vehicle from the
rear with the “ENGINE START STOP” switch OFF. The steering lock
mechanism is not strong enough to hold the front wheel straight.
When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed.
Front

5
395
5-1. Essential information
When trouble arises
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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

396
5-1. Essential information
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Fuel pump shut off system
Follow the procedure below to restart the engine after the system is
activated.
Vehicles without smart entry & start system
Turn the engine switch to the ACC or LOCK position.
Restart the engine.
Vehicles with smart entry & start system
Press the “ENGINE START STOP” switch to change to the
ACCESSORY mode or OFF.
Restart the engine.
NOTICE
Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
To minimize the risk of fuel leakage when the engine stalls or an air-
bag inflates upon collision, the fuel pump shut off system stops sup-
plying fuel to the engine.