2012 TOYOTA IQ check engine

338 4-3. Do-it-yourself maintenance
iQ_WE_74014E1NR-FE engine
Make sure to check the oil type and prepare the items needed before
adding oil.
Remove the oil filler cap, turning it counterclockwise.
Add engine oil slowly.
Checking the dipstick.
Reinstall the filler cap, turning it clockwise.
The approximate quantity of oil needed to raise the level between low and
full on the dipstick is indicated as follows:
1.5 L (1.6 qt., 1.3 Imp.qt.)
Engine oil selectionP. 4 5 0
Items Clean funnel

340 4-3. Do-it-yourself maintenance
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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.

341 4-3. Do-it-yourself maintenance
4
Maintenance and care
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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.

342 4-3. Do-it-yourself maintenance
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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

346 4-3. Do-it-yourself maintenance
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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

361
4-3. Do-it-yourself maintenance
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Maintenance and care
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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.

5
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.

414 5-2. Steps to take in an emergency
iQ_WE_74014ECheck the specified tire inflation pressure.
Tire inflation pressure is specified on the label on the driver’s side
pillar as shown. (P. 455)
Left-hand drive vehicles
Right-hand drive vehicles
Start the vehicle’s engine.
To inject the sealant and inflate
the tire, turn the compressor
switch on.