cooling TOYOTA GT86 2018 Owners Manual (in English)

164 2-1. Driving procedures
NOTICE
■Pre-driving check
Trapping small animals in the cooling fan and belts of the engi ne may result
in a malfunction. Check that no small animal enters the engine compartment
and under the vehicle before starting the engine.
■ When driving the vehicle
Vehicles with an automatic transmission
●Do not depress the accelerator and brake pedals at the same tim e during
driving, as this may r estrain driving torque.
● Do not use the accelerator pedal or depress the accelerator and brake
pedals at the same time to hold the vehicle on a hill.
Vehicles with a manual transmission
● Do not depress the accelerator and brake pedals at the same tim e during
driving, as this may r estrain driving torque.
● Do not shift gears unless the clutch pedal is fully depressed. After shifting,
do not release the clutch pedal abruptly. Doing so may damage t he clutch,
transmission and gears.
● Observe the following to prevent the clutch from being damaged.
• Do not rest your foot on the clutch pedal while driving.
Doing so may cause clutch trouble.
• Do not use any gear other than the 1st gear when starting off and mov-
ing forward.
Doing so may damage the clutch.
• Do not use the clutch to hold the vehicle when stopping on an uphill
grade.
Doing so may damage the clutch.
● Do not shift the shift lever to R when the vehicle is still moving. Doing so
may damage the clutch, transmission and gears.
● Do not release the clutch pedal too quickly. Doing so may damag e the
transmission.
■ When parking the vehicle (vehicl es with an automatic transmission)
Always shift the shift lever to P. Failure to do so may cause t he vehicle to
move or the vehicle may accelerate suddenly if the accelerator pedal is acci-
dentally depressed.

273
3-1. Using the air condit
ioning system and defogger
3
Interior features
■For quick cooling
Turn the temperature control dial to the “MAX A/C” position and select the
recirculated air mode.
■ Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high.
Turning
on will dehumidify the air from the outlets and defog the
windshield effectively.
● If you turn
off, the windows may fog up more easily.
● The windows may fog up if the recirculated air mode is used.
■ Outside/recirculated air mode
When driving on dusty roads such as tunnels or in heavy traffic, set the out-
side/recirculated air mode button to the recirculated air mode. This is effec-
tive in preventing outside air from entering the vehicle interi or. During cooling
operation, setting the recirculated air mode will also cool the vehicle interior
effectively.
■ When the outside temperature falls to nearly 32°F (0°C)
The dehumidification function may not operate even when is
pressed.
■ Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the out side air mode.
● During use, various odors from inside and outside the vehicle may enter
into and accumulate in the air conditioning system. This may then cause
odor to be emitted from the vents.
● To reduce potential odors from occurring:
It is recommended that the air conditioning system be set to ou tside air
mode prior to turning the vehicle off.
■ Air conditioning filter
P. 360

282 3-1. Using the air conditioning system and defogger
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting
and the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after is pressed.
■ Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high.
Turning on will dehumidify the air from the outlets and defog the
windshield effectively.
● If you turn
off, the windows may fog up more easily.
● The windows may fog up if the recirculated air mode is used.
■ Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic , set the
outside/recirculated air mode button to the recirculated air mo de. This is
effective in preventing outside air from entering the vehicle interior.
During cooling operation, setting the recirculated air mode wil l also cool
the vehicle interior effectively.
● Outside/recirculated air mode may automatically switch dependin g on
the temperature setting or the inside temperature.
■ When the outside tempera ture falls to nearly 32F (0C)
The dehumidification function may not operate even when
is
pressed.

326 4-3. Do-it-yourself maintenance
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
■ When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and en gine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper or ra gs, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or t he bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
■ When working near the electric cooling fans or radiator grille
Vehicles without a smart key system: Be sure the engine switch is off. With
the engine switch in the “ON” position, the electric cooling fa ns may auto-
matically start to run if the air conditioning is on and/or the coolant tempera-
ture is high. ( P. 337)
Vehicles with a smart key system: Be sure the “ENGINE START STO P”
switch is off. With the “ENGINE START STOP” switch in IGNITION ON
mode, the electric cooling fans may automatically start to run if the air condi-
tioning is on and/or the coolant temperature is high. ( P. 337)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.

331
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine compar tment
Battery( P. 3 3 9 )
Engine oil level dipstick ( P. 3 3 2 )
Brake fluid reservoir ( P. 3 3 7 )
Engine oil filler cap ( P. 3 3 3 )Washer fluid tank
( P. 3 4 3 )
Electric cooling fans
Condenser ( P. 3 3 7 )
Radiator ( P. 3 3 7 )
Engine coolant reservoir ( P. 3 3 5 )
Fuse box ( P. 3 6 7 )

335
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine coolant
The coolant level is satisfactory if it is between the “FULL” a nd “LOW”
lines on the reservoir w hen 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 v ehicle.
● Be sure the engine oil filler cap is properly tightened.
■If the coolant level drops within a short time after replenishi ng
Visually check the radiator, hoses, engine coolant filler cap, radiator cap,
drain cock and water pump.
If you cannot find a leak, have your Toyota dealer pressure test the cap and
check for leaks in the cooling system.

336 4-3. Do-it-yourself maintenance
■Coolant selection
Only use “TOYOTA Genuine 50/50 Pre-mixed Super Long Life Coolan t
BLUE” or similar high-quality ethylene glycol-based non-silicat e, non-amine,
non-nitrite, and non-borate coolant with long-life hybrid organic acid technol-
ogy.
“TOYOTA Genuine 50/50 Pre-mixed Super Long Life Coolant BLUE” i s a
mixture of 50% coolant and 50% deionized water. (Enabled: -31 F [-35 C])
For more details about engine coolant, contact your Toyota deal er.
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 straight 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 coola nt label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging p arts or paint.

370 4-3. Do-it-yourself maintenance
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1MIR HTR 7.5 A Outside rear view mirror defoggers
2RDI 25 A Electric cooling fan
3(PUSH-AT) 7.5 A Engine control unit
4ABS NO. 1 40 A ABS
5HEATER 50 A Air conditioning system
6WASHER10 A Windshield washer
7WIPER30 A Windshield wipers
8RR DEF30 A Rear window defogger
9(RR FOG) 10 A
10D FR DOOR 25 A Power window (driver’s side)
11(CDS)25 A Electric cooling fan
12D-OP 25 A
13ABS NO. 2 25 A ABS
14D FL DOOR 25 A Power window (passenger’s side)
15SPARESee note. Spare fuse

448 5-2. Steps to take in an emergency
NOTICE
■When handling jumper cables
Be careful that the jumper cables do not become tangled in the cooling fans
or any of the belts when connecting or disconnecting them.
■ When closing the doors
While pushing the door glass towards the inside of the vehicle, slowly close
the door.
Because the side window open/close function linked to door oper ation will
not operate, the window may interfere with the vehicle body, po ssibly
scratching both the vehicle body and window, or even shattering the window.

5
When trouble arises
449
5-2. Steps to take in an emergency
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 your Toyota
dealer.
The following may indicate that your vehicle is overheating.
●Vehicles with a monochrome mu lti-information display: The
engine coolant temperature gauge ( P. 191) 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 engin e
coolant temperature warning light ( P. 194) flashes or illumi-
nates or a loss of engine power i s experienced (for example, the
vehicle speed does not increase).
● Steam comes out from under the hood.
STEP 1
STEP 2
STEP 3