2017 TOYOTA GT86 engine

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

394
5-1. Essential information
86_EE (OM18071E)
Fuel pump shut off system
Follow the procedure below to restart the engine after the system is
activated.
Vehicles without a smart entry & start systemTurn the engine switch to the “ACC” or “LOCK” position.
Restart the engine.
Vehicles with a smart entry & start system Turn the “ENGINE START STOP” switch to ACCESSORY mode
or turn it off.
Restart the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked on to the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
When the vehicle sustains an imp act in an accident, etc., the fuel
pump shut off system operates to stop supplying fuel in order to
minimize fuel leakage.
STEP 1
STEP 2
STEP 1
STEP 2

396
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.

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397
5-2. Steps to take in an emergency
When trouble arises
86_EE (OM18071E)
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 any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional immedi-
ately.
Warning lightWarning light/Details
Malfunction indicator lamp Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control system.
SRS warning light Indicates a malfunction in:
• The SRS airbag system;
• The seat belt pretensioner system.
ABS warning light Indicates a malfunction in:
• The ABS;
• The brake assist system.
Electric power steering warning light (warning buzzer) Indicates a malfunction in the EPS (Electric Power Steer-
ing) system.
Slip indicator Indicates a malfunction in:
• The VSC system;
• The TRC system;
• The hill-start assist control system.
Automatic headlight leveling system warning light Indicates a malfunction in the automatic headlight leveling
system.
LED headlight warning light Indicates a malfunction in the LED headlights.

402
5-2. Steps to take in an emergency
86_EE (OM18071E)
■
If the tire pressure warning system is inoperative
The tire pressure warning system will be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
● If tires not equipped with tire pressure warning valves and transmitters
are used.
● If the ID code on the tire pressure warning valves and transmitters is not
registered in the tire pressure warning computer.
● If the tire inflation pressure is 380 kPa (3.87 kgf/cm
2 or bar, 55 psi) or
higher.
The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
● If electronic devices or facilities using similar radio wave frequencies are
nearby.
● If a radio set at similar frequencies is in use in the vehicle.
● If a window tint that affects t he radio wave signals is installed.
● If there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings.
● If non-genuine Toyota wheels are used. (Even if you use Toyota wheels,
the tire pressure warning system may not work properly with some types
of tires.)
● If tire chains are used.
● If a large metallic object which can interfere with signal reception is put in
the trunk.
■ If the tire pressure warning light frequently comes on after blinking for
approximately one minute
If the tire pressure warning light frequently comes on after blinking for
approximately one minute when the “ENGINE START STOP” switch is
turned to IGNITION ON mode (vehicles with a smart entry & start system) or
the engine switch is turned to the “ON” position (vehicles without a smart
entry & start system), have it checked by any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.

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405
5-2. Steps to take in an emergency
When trouble arises
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 messageDetails
(Comes on in red)
Indicates that the engine is almost overheating.
( → P. 464)
A buzzer also sounds.

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409
5-2. Steps to take in an emergency
When trouble arises
86_EE (OM18071E)
(Vehicles with an auto-
matic transmission) Indicates that the auto-
matic transmission fluid
temperature is too
high.
A buzzer also
sounds. Stop the vehicle in a
safe place and shift the
shift lever to P.
If the message is
cleared after a little
while, the vehicle can
be driven. If the mes-
sage is not cleared,
contact any authorized
Toyota dealer or
repairer, or another
duly qualified and
equipped professional.
(Flashes) Indicates that the
“ENGINE START
STOP” switch is turned
off and the driver’s
door is opened while
the lights are turned on
A buzzer also
sounds. Turn the lights off.
Warning messageDetailsCorrection procedure

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411
5-2. Steps to take in an emergency
When trouble arises
86_EE (OM18071E)
Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem,
check that the warning message and light go off.
InteriorbuzzerExterior
buzzerWarning messageDetailsCorrection procedure
Once 
(Flashes)
(Flashes in yellow)
Indicates that the
electronic key is
not present when
attempting to
start the engine. Confirm
the loca-
tion of the
electronic
key.
Once
3 times
(Flashes)
(Flashes in yellow)
Indicates that a
door other than
the driver’s door
has been opened
and closed with
the “ENGINE
START STOP”
switch in any
mode other than
off and the elec-
tronic key out-
side of the
detection area. Confirm
the loca-
tion of the
electronic
key.