2012 TOYOTA IQ engine

5
437 5-2. Steps to take in an emergency
When trouble arises
iQ_WE_74014E
CAUTION
To prevent an accident or injury when inspecting under the hood of
your vehicle
If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injuries such as burns.
Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fan and belts. Failure to do so may cause the hands or clothing to be
caught, resulting in serious injury.
Do not loosen the radiator cap and the coolant reservoir cap while the
engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too
quickly can cause damage to the engine.
To prevent damage to the cooling system
Observe the following precautions:
Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
Do not use commercially available coolant additives.

438
5-2. Steps to take in an emergency
iQ_WE_74014E
If the vehicle becomes stuck
Emergency hook
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt, or snow.
Stop the engine. Set the parking brake and put the shift
lever in P (Multidrive) or N (manual transmission).
Remove the mud, snow, or sand from around the stuck tire.
Place wood, stones or some other material to help provide
traction under the tires.
Restart the engine.
Shift the shift lever to D or R (Multidrive) or 1 or R (manual
transmission) and carefully apply the accelerator to free the
vehicle.
Turn off the TRC and/or VSC systems if it is difficult to get out
because of TRC and/or VSC operation. (P. 225)
When your vehicle becomes stuck and
cannot move, the emergency hook is
used for another vehicle to pull your vehi-
cle out in an emergency.
Your vehicle is not designed to tow
another vehicle.

5
439 5-2. Steps to take in an emergency
When trouble arises
iQ_WE_74014E
CAUTION
When attempting to free a stuck vehicle
If you choose to rock the vehicle back and forth to free it, make sure the sur-
rounding area is clear, to avoid striking other vehicles, objects or persons.
The vehicle may also lunge forward or lunge back suddenly as it becomes
free. Use extreme caution.
When shifting the shift lever (vehicles with a Multidrive)
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may
cause an accident and result in death or serious injury.
NOTICE
To avoid damaging the transmission and other components
Avoid spinning the wheels and do not rev the engine.
If the vehicle remains stuck after trying these procedures, the vehicle may
require towing to be freed.

440
5-2. Steps to take in an emergency
iQ_WE_74014E
If your vehicle has to be stopped in an emergency
Only in an emergency, such as if it becomes impossible to stop the
vehicle in the normal way, stop the vehicle using the following pro-
cedure:
Steadily step on the brake pedal with both feet and firmly
depress it.
Do not pump the brake pedal repeatedly as this will increase the
effort required to slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N.
After slowing down, stop the vehicle in a safe place by the
road.
Stop the engine.
If the shift lever cannot be shifted to N.
Keep depressing the brake pedal with both feet to reduce
vehicle speed as much as possible.
Vehicles without smart entry &
start system: Stop the engine
by turning the engine switch to
the ACC position.

5
441 5-2. Steps to take in an emergency
When trouble arises
iQ_WE_74014E
CAUTION
If the engine has to be turned off while driving
Power assist for the brakes and steering wheel will be lost, making the
brake pedal harder to depress and the steering wheel heavier to turn.
Decelerate as much as possible before turning off the engine.
Vehicles without smart entry & start system: Never attempt to remove the
key, as doing so will lock the steering wheel.
Vehicles with smart entry &
start system: To stop the
engine, press and hold the
“ENGINE START STOP”
switch for 2 consecutive sec-
onds or more, or press it
briefly 3 times or more in suc-
cession.
Stop the vehicle in a safe place by the road.
Press and hold for 2 seconds or more,
or press briefly 3 times or more

444
iQ_WE_74014E
6-1. Specifications
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
*: Unladen vehicles
Overall length 2985 mm (117.5 in.)
Overall width 1680 mm (66.1 in.)
Overall height*1500 mm (59.1 in.)
Wheelbase 2000 mm (78.7 in.)
TreadFront 1480 mm (58.3 in.)
Rear 1460 mm (57.5 in.)
Gross vehicle mass1KR-FE engine
1215 kg (2678 lb.)
1NR-FE engine
1270 kg (2799 lb.)
Maximum permis-
sible axle capacityFront 670 kg (1477 lb.)
Rear 630 kg (1388 lb.)

446 6-1. Specifications
iQ_WE_74014EEngine number
The engine number is stamped on the engine block as shown.
1KR-FE engine
1NR-FE engine

447 6-1. Specifications
6
Vehicle specifications
iQ_WE_74014E
Engine
Model 1KR-FE and 1NR-FE
Ty p e1KR-FE engine
3-cylinder in line, 4-cycle, gasoline
1NR-FE engine
4-cylinder in line, 4-cycle, gasoline
Bore and stroke1KR-FE engine
71.0  84.0 mm (2.80  3.31 in.)
1NR-FE engine
72.5  80.5 mm (2.85  3.17 in.)
Displacement1KR-FE engine
998 cm3 (60.9 cu.in.)
1NR-FE engine
1329 cm
3 (81.1 cu.in.)
Valve clearance
(engine cold)1KR-FE engine
Intake: 0.145 0.235 mm (0.006 0.009 in.)
Exhaust: 0.275 0.365 mm (0.011 0.014
in.)
1NR-FE engine
Automatic adjustment