2014 TOYOTA IQ check engine light

Maintenance and care4
183
4-1. Maintenance and careCleaning and protecting the vehicle exterior......... 184
Cleaning and protecting the vehicle interior.......... 187
4-2. Maintenance Maintenance requirements .................. 190
General maintenance....... 192
Emission inspection and maintenance (I/M)
programs........................ 195 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions .................... 196
Hood ................................ 199
Positioning a floor jack ..... 201
Replacing the tire ............. 204
Engine compartment ........ 210
Tires ................................. 222
Tire inflation pressure ...... 230
Wheels ............................. 234
Air conditioning filter......... 236
Key battery ....................... 240
Checking and replacing fuses .............................. 244
Light bulbs........................ 255

5
When trouble arises
283
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. 279)
■ 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.

5
When trouble arises
285
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. 343)
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.

310 5-2. Steps to take in an emergency
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■ Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is turned
off.
● Turn off any unnecessary electrical components when the vehicle is run-
ning at a low speed for an extended period, such as in heavy traffic, etc.
■ Charging the battery
The electricity stored in the battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the battery may
discharge, and the engine may be unable to start. (The battery recharges
automatically during driving.)
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it
is not unintentionally in contact with any part other than the intended termi-
nal.
● Do not allow the jumper cables to come into contact with the “+” and “-” ter-
minals.
● Do not smoke, use matches, cigarette lighters or allow open flame near
the battery.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at your Scion
dealer as soon as possible.

325
6-1. Specifications
6
Vehicle specifications
Ignition system
Electrical system
Spark plug
Make DENSO SC20HR11
Gap
0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.
Battery
Open voltage* at
68 F (20 C): 12.6  12.8 V Fully charged
12.2  12.4 V Half charged
11 . 8
 12.0 V Discharged
(
*: Voltage checked 20 minutes after
the engine and all the lights are
turned off)
Charging rates 5 A max.

365
Alphabetical index
Eco driving indicator
light ........................ 105, 124, 129
Electric power steering Electric power steering ......... 141
Warning light ........................ 279
Emergency flashers Switch ................................... 268
Emergency, in case of
If the engine will not start...... 305
If the shift lever cannot be shifted from P ..................... 307
If the vehicle battery is discharged ......................... 309
If the warning buzzer
sounds ............................... 277
If the warning light turns on ....................................... 277
If you have a flat tire ............ 288
If you lose your keys............. 308
If you think something is wrong ................................. 275
If the vehicle becomes stuck................................... 315
If your vehicle has to be stopped in an emergency... 317
If your vehicle needs to be
towed ................................. 269
If your vehicle overheats ...... 312
Emergency tire puncture
repair kit................................. 288
Engine Compartment........................ 210
Engine switch ....................... 113
Hood ..................................... 199
How to start the engine ........ 113
Identification number ............ 321
If the engine will not start...... 305
Ignition switch ....................... 113
Immobilizer system................. 62
Overheating .......................... 312 Specifications ........................322
Warning light .........................279
Engine coolant Capacity ................................324
Checking ...............................215
Indicator ................................124
Preparing and checking before winter .......................151
Type ......................................324
Warning light .........................278
Engine immobilizer system.......62
Engine oil
Capacity ................................323
Checking ...............................211
Grade ....................................323
Preparing and checking before winter .......................151
Reset the maintenance data .....................................190
Warning light .................278, 280
Engine switch ...........................113
EPS EPS .......................................141
Warning light .........................279
Event data recorder ...................19
Floor mat...................................179
Fluid Automatic transmission .........326
Brake .....................................217
Warning light .................277, 280
Washer ..................................220
Front passenger’s seat belt reminder light.........................280
Front seats Adjustment ..............................37
Front side marker lights
Replacing light bulbs .............255
Switch....................................132
Wattage .................................328E
F

369
Alphabetical index
Stop lights
Replacing light bulbs ............ 255
Wattage ................................ 328
Storage features Auxiliary boxes ............. 171, 174
Bottle holders ............... 171, 173
Cup holders .................. 171, 172
Storage precautions ............... 148
Stuck
If the vehicle becomes stuck................................... 315
Sun visors ................................ 175
Switch Emergency flashers
switch ................................. 268
Engine switch ....................... 113
Hazard lights switch ............. 268
Headlights switch ................. 132
Ignition switch ....................... 113
Instrument panel light control ................................ 122
Light switch........................... 132
Outside rear view mirror switch ................................... 52
Power door lock switch........... 30
Power window switch ............. 55
Turn signal lights .................. 117
VSC OFF switch ................... 143
Window lock switch ................ 55
Wiper and washer ........ 136, 139 Tachometer...............................121
Tail lights
Replacing light bulbs .............255
Switch....................................132
Wattage .................................328
Theft deterrent system Engine immobilizer system .....62
Theft prevention labels ............64
Theft prevention labels..............64
Tire inflation pressure .............230
Tire information Glossary ................................337
Size .......................................334
Tire identification number ......333
Uniform tire quality grading ................................335
Tires
Chains ...................................152
Checking ...............................222
If you have a flat tire ..............288
Identification number .............332
Inflation pressure...........230, 327
Inflation pressure sensor .......223
Information ............................332
Replacing ......................204, 222
Rotating tires .........................222
Size .......................................327
Snow tires .............................151
Tire pressure warning system ........................222, 280
Warning light .........................280
Tools .........................................288
Total load capacity...................150
Towing Dinghy towing........................156
Emergency towing.................269
Trailer towing.........................155T

370 Alphabetical index
Traction control........................ 141
TRAC ......................................... 141
Trip information ....................... 127
Trip meter ................................. 127
Turn signal lightsIndicator ................................ 124
Lever ..................................... 117
Replacing light bulbs ............. 255
Switch.................................... 117
Wattage ................................. 328
USB port ................................... 167
Vanity mirrors........................... 176
Vehicle data recordings ............18
Vehicle identification number ................................... 321
Vehicle stability control........... 141
VSC............................................ 141
Warning buzzers
Brake system ........................ 277
Seat belt reminder ................. 280
Warning lights ABS ....................................... 279
Airbag system ....................... 279
Anti-lock brake system .......... 279
Brake system ........................ 277
Charging system .... ............... 278
Driver’s seat belt ................... 280
Electric power steering system ................................ 279
Electronic engine control system ................................ 279
Engine oil replacement.......... 280
EPS system........................... 279 Front passenger occupant
classification system ........... 279
Front passenger’s seat belt... 280
High engine coolant temperature ........................ 278
Low brake fluid ...................... 277
Low engine oil pressure ........ 278
Low fuel level ........................ 280
Low tire inflation pressure ..... 280
Low washer fluid ................... 280
Malfunction............................ 279
Open door ............................. 280
Seat belt ................................ 280
Seat belt pretensioner system ................................ 279
SRS....................................... 279
SRS airbag system ............... 279
Tire pressure ......................... 280
Tire pressure warning system ................................ 280
VSC OFF .............................. 279
Washer Checking ............................... 220
Preparing and checking
before winter ....................... 151
Switch ........................... 136, 139
Warning light ......................... 280
Washing and waxing ............... 184
Weight Cargo capacity ...................... 146
Load limits ............................. 150
Weight ................................... 320
Wheels ...................................... 234
Window glasses ............ 55, 164, 184, 187
Window lock switch................... 55
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