engine coolant TOYOTA GT86 2017 (in English) User Guide

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4-3. Do-it-yourself maintenance
86_EE (OM18071E)
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 a regular basis.
■ When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
● Avoid overfilling, or 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.
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engi ne coolant filler 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 pressure test the cap and
check for leaks in the cooling system.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
86_EE (OM18071E)
■
Coolant selection
Only use “TOYOTA Genuine 50/50 Pre-mixed Super Long Life Coolant
BLUE” or similar high-quality ethylene glycol-based non-silicate, non-amine,
non-nitrite, and non-borate coolant with l ong-life hybrid organic acid technol-
ogy.
“TOYOTA Genuine 50/50 Pre-mixed Super Long Life Coolant BLUE” 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.
WARNING
■ When the engine is hot
Do not remove the radiator 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 stra ight 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 it from damaging parts or paint.

5
393
5-1. Essential information
When trouble arises
86_EE (OM18071E)
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional as
soon as possible.
■ Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Vehicles with a monochrome multi-information display: The
engine coolant temperature gauge needle continually points
higher than normal
● Vehicles with a color multi-information display: The high
engine coolant temperature warning light flashes or illumi-
nates
■ Audible symptoms
●Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
●Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost
touches the floor

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5-2. Steps to take in an emergency
86_EE (OM18071E)
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging system.
Low engine oil pressure warning light Indicates that the engine oil pressure is too low.
(Flashes or illu- minates in red) High engine coolant temperature warning light (if
equipped)
Indicates that the engine is almost overheating. ( →P. 464)
As the engine coolant temperature increases, this warning
light will change from flashing to constantly illuminated.

464
5-2. Steps to take in an emergency
86_EE (OM18071E)
If your vehicle overheats
Correction proceduresStop the vehicle in a safe place and turn off the air condition-
ing system, and then stop the engine.
If you see steam: Carefully lift the hood after the steam subsides.
If you do not see steam: Carefully lift the hood.
After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radia-
tor) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact any autho-
rized Toyota dealer or repairer, or
another duly qualified and
equipped professional.
The following may indicate that your vehicle is overheating.
●Vehicles with a monochrome multi-information display: The
engine coolant temperature gauge ( →P. 200) enters the red
zone or a loss of engine power is experienced (for example, the
vehicle speed does not increase).
Vehicles with a color multi-information display: The high engine
coolant temperature warning light ( →P. 204) flashes or illumi-
nates or a loss of engine power is experienced (for example, the
vehicle speed does not increase).
● Steam comes out from under the hood.
STEP 1
STEP 2
STEP 3

5
465
5-2. Steps to take in an emergency
When trouble arises
86_EE (OM18071E)
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
Radiator cap
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to
check that the radiator cooling fans operate and to check for
coolant leaks from the radiator or hoses.
The fans operate when the air conditioning system is turned on
immediately after a cold start. Confirm that the fans are operating by
checking the fan sound and air flow. If it is difficult to check these,
turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating: Stop the engine immediately and contact any authorized
Toyota dealer or repairer, or another duly qualified and
equipped professional.
If the fans are operating: Have the vehicle inspected at the nearest authorized
Toyota dealer or repairer, or another duly qualified and
equipped professional.
STEP 4
STEP 5
STEP 6
STEP 7

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5-2. Steps to take in an emergency
86_EE (OM18071E)
WARNING
■
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 fans 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 any coolant additives.

479
6-1. Specifications
6
Vehicle specifications
86_EE (OM18071E)
Cooling system
Ignition system
Capacity
Vehicles with an automatic transmission
7.5 L (7.9 qt., 6.6 Imp. qt.)
Vehicles with a manual transmission
7.2 L (7.6 qt., 6.3 Imp. qt.)
Coolant typeUse either of the following.
• “TOYOTA Genuine 50/50 Pre-mixed Super Long Life Coolant BLUE”
• Similar high-quality ethylene glycol-based non- silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid technol-
ogy
Do not use plain water alone.
Spark plug
Make
Gap DENSO ZXE27HBR8
0.8 mm (0.031 in.)
NOTICE
■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.

493
Alphabetical index
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Child safety
Airbag precautions ................ 127
Battery precautions ....... 338, 462
Child restraint system ........... 136
How your child should wear the seat belt ................. 75
Installing child restraints........ 145
Power window lock switch ...... 85
Power window precautions ..... 88
Removed key battery precautions ......................... 363
Seat belt guide ........................ 74
Seat belt precautions .............. 76
Seat heater precautions........ 299
Trunk precautions ................... 62
Cleaning Alcantara
®............................. 316
Aluminum wheels.................. 309
Exterior.................................. 308
Interior................................... 312
Seat belts .............................. 313
Clock ......................................... 295
Condenser ................................ 334
Console tray ............................. 291
Coolant Capacity ................................ 479
Checking ............................... 332
Cooling system Engine overheating ............... 464
Cruise control .......................... 241
Cup holders .............................. 291
Curtain airbags ........................ 106
Customizable features ............ 487 Daytime running light
system .................................... 233
Defogger Rear window ......................... 282
Side mirror ............................ 282
Dimensions .............................. 472
Display Drive information................... 218
Multi-information display ........................ 210, 215
Trip information ............. 213, 216
Warning messages ............... 404
Do-it-yourself maintenance .... 321
Door courtesy lights Door courtesy lights .............. 286
Wattage ................................ 484
Doors
Door lock..................... 35, 52, 57
Door windows ......................... 85
Double locking system .......... 102
Side mirrors ............................ 82
Drive information ..................... 218
Driver's seat belt reminder light ........................ 399
Driving Break-in tips .......................... 163
Correct posture ..................... 104
Procedures ........................... 160
Winter drive tips .................... 259
D

494
Alphabetical index
86_EE (OM18071E)
Electric power steering ........... 246
Electronic key
If the electronic key does not operate properly ........... 455
Emergency brake signal ......... 246
Emergency flashers
Switch ................................... 384
Emergency, in case of If the electronic key does not operate properly ........... 455
If the engine will not start ...... 450
If the shift lever cannot
be shifted from P ................ 453
If the vehicle has a discharged battery .............. 459
If the warning buzzer sounds ................................ 395
If the warning light turns on............................... 395
If the warning message is displayed......................... 404
If you have a flat tire ..... 422, 438
If you lose your keys ............. 454
If you think something is wrong.................................. 393
If your vehicle becomes stuck ................................... 467
If your vehicle has to be stopped in an
emergency .......................... 469
If your vehicle needs to be towed ............................. 385
If your vehicle overheats ....... 464 Engine
Compartment ........................ 328
Engine switch................ 174, 183
Hood ..................................... 324
How to start the engine......................... 174, 183
Identification number ............ 473
If the engine will not start ...... 450
Ignition switch ............... 174, 183
Overheating .......................... 464
Engine coolant
Capacity ................................ 479
Checking ............................... 332
Engine coolant temperature gauge...................................... 200
Engine immobilizer system ...... 93
Engine oil Capacity ................................ 476
Checking ............................... 329
Preparing and checking before winter....................... 259
Engine switch .................. 174, 183
Engine switch light .................. 286
EPS ........................................... 246
Event data recorder ................... 26E