cooling TOYOTA IQ 2014 User Guide

314 5-2. Steps to take in an emergency
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.

324 6-1. Specifications
The 0W portion of the oil viscosity rating indicates the characteristic of the
oil which allows cold startability. Oils with a lower value before the W allow
for easier starting of the engine in cold weather.
The 20 in 0W-20 indicates the oil viscosity when the oil is at its operating
temperature. An oil with a higher viscosity may be better suited if the vehi-
cle is operated at high speeds, or under extreme load conditions.
How to read oil container label:
The ILSAC (International Lubricant Standardization and Approval
Committee) Certification Mark is added to some oil containers to help
you select the oil you should use.
Cooling system
Capacity
(Reference) 5.2 qt. (4.9 L, 4.3 Imp.qt.)
Coolant typeUse either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-silicate, non-amine, non-nitrite and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.

364 Alphabetical index
CareExterior .................................. 184
Interior ................................... 187
Seat belts .............................. 188
Cargo capacity ......................... 146
Chains ....................................... 152
Child restraint system Booster seats, definition ..........87
Booster seats, installation .......92
Convertible seats, definition ....87
Convertible seats,
installation .............................92
Front passenger occupant classification system .............81
Infant seat, definition ...............87
Infant seats, installation...........92
Installing CRS with LATCH system ..................................94
Installing CRS with seat belts ......................................95
Installing CRS with top tether straps ..........................99
Child safety
Airbag precautions ..................76
Battery precautions ....... 219, 311
Child restraint syst em..............87
How your child should wear the seat belt ..........................46
Installing child restraints ..........92
Power window lock switch.......55
Power window precautions .....57
Removed key battery
precautions ......................... 242
Seat belt extender precautions ...........................48
Seat belt precautions ..............47 Cleaning
Exterior.................................. 184
Interior ................................... 187
Seat belts .............................. 188
Clock ......................... 121, 126, 130
Condenser ................................ 216
Cooling system Engine overheating ............... 312
CRS ............................................. 87
Cup holders .............................. 172
Curtain shield airbags ............... 67
Customizable features ............ 343
Daytime running light system .................................... 134
Defogger
Rear window ................. 164, 165
Side mirrors........................... 165
Dimension ................................ 320
Do-it-yourself maintenance .... 196
Doors Back door ................................ 33
Door glasses ........................... 55
Door lock ................................ 30
Side doors ............................... 30
Side mirrors............................. 52
Warning light ......................... 280
Driver’s seat belt reminder
light ......................................... 280
Driving Break-in tips .......................... 106
Correct posture ....................... 65
Procedures............................ 104
Winter driving tips ................. 151C
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