steering TOYOTA IQ 2013 Workshop Manual

5
When trouble arises
275
5-2. Steps to take in an emergency
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 your Scion dealer immediately.
Warning lightWarning light/Details
(except Canada)
(Canada) Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control sys-tem; or
• The emission control system.
SRS warning light Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system.
(except Canada)
(Canada) ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system.
Electric power steerin g system warning light
Indicates a malfunction in the EPS (Electric Power
Steering) system.
Slip indicator The indicator comes on to indicates a malfunction in;
• The VSC; or
• The TRAC.

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When trouble arises
279
5-2. Steps to take in an emergency
*3:Front passenger’s seat belt reminder:
The front passenger’s seat belt reminder sounds to alert the front passenger
that his or her seat belt is not fastened. The buzzer sounds intermittently for
approximately 10 seconds after the vehicle has reached a speed of at least
12 mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for approximately 20 more seconds.
*4: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s ManualSupplement” for the maintenance interval applicable to your vehicle.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag
sensors, side and curtain shield airbag sensors, curtain shield airbag sen-
sors, rear airbag sensors, driver’s seat position sensor, driver’s seat belt
buckle switch, front passenger occupant classification system (ECU and
sensors), AIR BAG ON indicator light, AIR BAG OFF indicator light, front
passenger’s seat belt buckle switch, seat belt pretensioner assemblies, air-
bags, interconnecting wiring and power sources. ( P. 275)
■ Key reminder buzzer
The buzzer indicates that the key has not been removed with the engine
switch in the ACC or LOCK position and the driver’s door opened.
■ Electric power steering system warning light
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may comes on.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after taking several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Scion dealer as soon as possible.

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When trouble arises
281
5-2. Steps to take in an emergency
●If non-genuine Scion wheels are used. (Even if you use Scion
wheels, the tire pressu
re warning system may not work properly with
some types of tires.)
●If tire chains are used.
●If emergency tire puncture repair kit is used.
■If the tire pressure warning light frequently comes on after blinking
for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1
minute when the engine switch is turned to the ON position, have it
checked by your Scion dealer.
■ Customization that can be configured at Scion dealer
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features P. 339)
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.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is pr obable that you have a flat tire. Check the tires.
If the tire is flat, temporary repair it with liquid sealants and have the
flat tire repaired or replaced by the nearest Scion dealer as soon as
possible.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning syste m may not activate immediately.

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When trouble arises
299
5-2. Steps to take in an emergency
CAUTION
■When fixing the flat tire
●If the hose comes off the valve while inflating the tire, there is a risk
that the hose will
move abruptly due to air pressure.
●After inflation of the tire has comp leted, the sealant may splatter when
the hose is disconnected or so me air is let out of the tire.
●Follow the operation procedure to repair the tire. If the procedures not
followed, the sealant may spray out.
●Keep back from the tire while it is being repaired, as there is a chance
of it bursting while the repair ope ration is being performed. If you
notice any cracks or deformation of the tire, turn off the compressor
switch and stop the repair operation immediately.
●The repair kit may overheat if operated for a long period of time. Do not
operate the repair kit continuously for more than 60 minutes.
●Parts of the repair kit become hot during operation. Be careful handling
the repair kit during and after operation. Do not touch the metal part
connecting the bottle and the co mpressor. It will be extremely hot.
●Do not attach the vehicle speed warning sticker to an area other than
the one indicated. If the sticker is attached to an area where an SRS
airbag is located, such as the pad of the steering wheel, it may prevent
the SRS airbag from operating properly.
■Driving to spread the liquid sealant evenly
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and cause death or
serious injury.
●Drive the vehicle carefully at a lo w speed. Be especially careful when
turning and cornering.
●If the vehicle does not drive straight or you feel a pull through the
steering wheel, stop the vehicle and check the following.
• Tire condition. The tire may have separated from the wheel.
• Tire inflation pressure. If the tire inflation pressure is 19 psi (130 kPa, 1.3 kgf/cm
2 or bar) or less, the tire may be severely damaged.

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5-2. Steps to take in an emergency
If the engine will not star t
If the engine still does not start after following the correct starting
procedure ( P. 111) or releasing the steering lock ( P. 112), confirm
the following points.
■ The engine will not start even when the starter motor oper-
ates normally.
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( P. 111 )
● Vehicles with engine immobilizer system: There may be a
malfunction in the engine immobilizer system.
(  P. 6 0 )
■ The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume.
One of the following may be the cause of the problem.
●The battery may be discharged. ( P. 305)
● The battery terminal connec tions may be loose or corroded.

314 5-2. Steps to take in an emergency
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.
● Never attempt to remove the key, as doing so will lock the steering wheel.

323
6-1. Specifications
6
Vehicle specifications
Steering
Tires and wheels
Free play
Less than 1.2 in. (30 mm)
Tire size175/60R16 82H
Tire inflation pressure
(Recommended cold tire
inflation pressure)Driving under normal conditions
Front tires:
33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear tires:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Wheel size 16  5 J
Wheel nut torque 76 ft·lbf (103 N·m, 10.5 kgf·m)
CAUTION
■When replacing tires and wheels
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to the peripheral parts of the tires,
as well as dangerous handling characteristics, which may lead to fatal or
injury accidents.
Do not use tire sizes or wheel sizes other than those recommended by
Scion.

333
6-1. Specifications
6
Vehicle specifications
Warning: The temperature grades of a tire assume that it is properly
inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can caus e heat buildup and possible tire fail-
ure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sure
Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressureThe maximum cold inflated pressure to which a
tire may be inflated, s hown on the sidewall of
the tire
Recommended infla-
tion pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of trans-
mission, power steering, power brakes, power
windows, power seats, radio and heater, to the
extent that these items are available as factory-
installed equipment (whether installed or not)
Curb weight
The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded vehi-
cle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant
weight150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that
follows

358
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
ABS Anti-Lock Brake System
ACC Accessory ALR Automatic Locking Retractor
CRS Child Restraint System
ECU Electronic Control Unit
EDR Event Data Recorder ELR Emergency Locking RetractorEPA Environmental Protection Agency
EPS Electric Power Steering
GAWR Gross Axle Weight Ratings
GVWR Gross Vehicle Weight Rating I/M Emission inspection and maintenance
LATCH Lower Anchors and Tethers for Children
LED Light Emitting DiodeLT Light truck
M + S Mud + Snow
MMT Methylcy clopentadienyl Manganese Tricarbonyl
MTBE Methyl Tertiary Butyl Ether OBD On Board Diagnostics
SRS Supplemental Restraint System TIN Tire Identification Number
TPMS Tire Pressure Warning System
TRAC Traction Control TWI Treadwear IndicatorsVIN Vehicle Identification Number
VSC Vehicle Stability Control
WWFC World-Wide Fuel Charter

359
Alphabetical index
Alphabetical index
A/C ............................................ 156
ABSABS ...................................... 139
Warning light ........................ 275
Air conditioning filter .............. 234
Air conditioning system Air conditioning filter ............. 234
Air conditioning
system................................ 156
Airbags
Airbag operating conditions .... 68
Airbag precautions for your child...................................... 73
Curtain shield airbag operating conditions ............. 69
Curtain shield airbag
precautions .......................... 73
Front passenger occupant classification system ............ 79
General airbag precautions .... 73
Indicators ................................ 79
Knee airbag precautions ........ 73
Locations of airbags ............... 65
Modification and disposal of airbags ................................. 78
Proper driving posture ...... 63, 73
Rear window curtain shield airbag precautions ..... 73
Seat cushion airbag precautions .......................... 73
Side airbag operating
conditions ............................. 69
Side airbag precautions.......... 73
SRS airbags ........................... 65
Warning light ........................ 275
Anti-lock brake system Anti-lock brake system ......... 139
Warning light ........................ 275
Assist grips.............................. 176
Audio input .............................. 165 Audio system
Audio input ............................165
AUX port/USB port ................165
Portable music player............165
Steering wheel audio switch ..................................166
Automatic light control
system ....................................130
Automatic transmission Automatic transmission .........114
Fluid ......................................322
If the shift lever cannot be shifted from P......................303
Indicators...............................114
Shift lock system .... ...............303
AUX port ...................................165
Auxiliary box ............................172
Back-up lights
Replacing light bulbs .............251
Wattage .................................324
Back door ...................................31
Battery Checking ...............................216
If the vehicle battery is
discharged ..........................305
Voltage ..................................321
Warning light .........................274
Bottle holders ...........................171
Brake assist ..............................139
Brakes Fluid ......................................215
Parking brake ........................116
Specifications ........................322
Warning light .........................273
Break-in tips .............................103A
B