engine TOYOTA IQ 2012 Owners Manual

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Engine coolant
The coolant level is satisfactory if it is between the FULL and LOW
lines on the reservoir when the engine is cold.
Reservoir cap
FULL
LOW
If the level is on or below the
LOW line, add coolant up to the
FULL line.
NOTICE
To prevent serious engine damage
Check the oil level on regular basis.
When replacing the engine oil
Be careful not to spill engine oil on the vehicle components.
Avoid overfilling, as the engine could be damaged.
Check the oil level on the dipstick every time you refill the vehicle.
Be sure the engine oil filler cap is properly tightened.

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If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, reservoir cap, radiator cap, drain cock
and water pump.
If you cannot find a leak, have any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, test the cap and check for
leaks in the cooling system.
Coolant selection
Only use “Toyota Super Long Life Coolant” or similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50%
deionized water. (Enabled: -35C [-31F])
For more details about engine coolant, contact any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
CAUTION
When the engine is hot
Do not remove the coolant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
When adding engine coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
If you spill coolant
Be sure to wash it off with water to prevent damage to parts or paint.

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Radiator and condenser
Check the radiator and condenser and clear any foreign objects.
If any of the above parts are extremely dirty or you are not sure of
their condition, have your vehicle checked by any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
Battery
Check the battery as follows.
The meanings of each caution symbol on the top of the battery are as
follows:
CAUTION
When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.
No smoking, no naked
flames, no sparksBattery acid
Shield eyesNote operating
instructions
Keep away from chil-
drenExplosive gas

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Before recharging
When recharging, the battery produces hydrogen gas which is flammable
and explosive. Therefore, before recharging:
If recharging with the battery installed on the vehicle, be sure to discon-
nect the ground cable.
Make sure the power switch on the charger is off when connecting and
disconnecting the charger cables to the battery.
After recharging the battery (vehicles with smart entry & start system)
The engine may not start. Follow the procedure below to initialize the sys-
tem.
Shift the shift lever to P (Multidrive) or depress the brake pedal with
the shift lever in N (manual transmission).
Open and close any of the doors.
Restart the engine.
CAUTION
Chemicals in the battery
A battery contains poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near bat-
tery:
Do not cause sparks by touching the battery terminals with tools.
Do not smoke or light a match near the battery.
Avoid contact with eyes, skin and clothes.
Never inhale or swallow electrolyte.
Wear protective safety glasses when working near the battery.
Keep children away from the battery.
Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a
garage or closed room where there is not sufficient ventilation.

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CAUTION
Emergency measures regarding electrolyte
If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.
If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Follow with milk of magnesia,
beaten raw egg or vegetable oil. Get emergency medical attention immedi-
ately.
NOTICE
When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
When adding distilled water
Avoid overfilling. Water spilled during battery recharging may cause corro-
sion.

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Washer fluid
If the washer fluid level is at
LOW, add washer fluid.
Using the gauge
CAUTION
When refilling the washer fluid
Do not refill the washer fluid when the engine is hot or running, as the
washer fluid contains alcohol and may catch fire if spilled on the engine, etc.
NOTICE
Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.
Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.
The washer fluid level can be checked by
observing the position of the level on the
liquid -covered holes in the gauge.
If the level falls below the second hole
from the bottom (the LOW position), refill
the washer fluid.
Current
fluid level

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Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to
maintain air conditioning efficiency.
Removal method
Vehicles without smart entry & start system:
Turn the engine switch to the LOCK position.
Vehicles with smart entry & start system:
Turn the “ENGINE START STOP” switch OFF.
Remove the filter cover.
Left-hand drive vehicles
Right-hand drive vehicles
Remove the air conditioning filter.

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Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Vehicles without smart entry & start system:
Turn the engine switch to the LOCK position.
Vehicles with smart entry & start system:
Turn the “ENGINE START STOP” switch OFF.
The fuses are located in the following places. To check the
fuses, follow the instructions below.
Engine compartment
Ty p e A
Remove the cover.

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Fuse layout and amperage ratings
Engine compartment (type A)
FuseAmpereCircuit
1 ALT 120 ACharging system, RDI, ABS NO.1,
HTR-B, ACC, CIG, GAUGE, ECU-
IG NO.1, HTR-IG, WIPER
WASHER, AM1, DOOR NO.1,
STOP, DOOR NO.2, OBD, RR
FOG, FR FOG, DEF, TAIL NO.2,
EPS, PTC NO.1, PTC NO.2, PTC
NO.3, DEICER, D/L NO.1, D/L
NO.2, PANEL
2MAIN 80 AEFI MAIN, EFI NO.1, HORN, AM2
NO.1, AM2 NO.2, DOME, ECU-B
NO.2, TURN&HAZ, H-LP LO, H-LP
LH LO, ECU-B NO.1, D/C CUT,
ETCS, H-LP HI, IG2, IGN

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FuseAmpereCircuit
1 D/C CUT 30 A ECU-B NO.1, DOME
2 IMMOBI 7.5 A Smart entry & start system
3 TURN & HAZ 10 ATurn signal lights, emergency
flashers
4 ETCS 10 A Electronic throttle control system
5 ECU-B NO.2 5 AMeter, power windows, air condi-
tioning system
6 AM2 NO.2 7.5 A Power management ECU
7H-LP LH
*110 A Left-hand headlight
H-LP LO
*220 A Headlight (low beam)
8 (BBC) 40 A No circuit
9 SPARE 30 A Spare fuse
10 SPARE 20 A Spare fuse
11 SPARE 5 A Spare fuse
12 AM2 NO.1 30 A Starting system