2017 TOYOTA GT86 Engine

175
2-3. Operating the lights and windshield wipers
2
When driving
■
Battery-saving function
In the following conditions, the headlights and the other remaining lights will
go off automatically after 20 minutes in order to prevent the vehicle battery
from being discharged:
●The headlights and/or tail lights are on.
● The engine switch is turned off.
● The light switch is in or .
This function will be canceled in any of the following situations:
● When the engine switch is turned to the “ON” position
● When the light switch is operated
● When the door is opened or closed
■ Customization that can be configured at your Toyota dealer
Settings of the light sensor sensitivity can be changed.
(Customizable features →P. 383)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not run-
ning.

177
2-3. Operating the lights and windshield wipers
2
When driving
■
The windshield wipers and washer can be operated when
The engine switch is in the “ON” position.
■ If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the
windshield washer fluid tank.
WARNING
■Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes
warm. The fluid may freeze on the windshield and cause low visibility. This
may lead to an accident, resulting in death or serious injury.
Washer/wiper dual opera-
tion
The wipers will automatically
operate a couple of times after
the washer squirts.

182 2-4. Using other driving systems
■Accelerating after setting the vehicle speed
●The vehicle can be accelerated normally. After acceleration, the set
speed resumes.
● Even without canceling the cruise control, the set speed can be
increased by first accelerating the vehicle to the desired speed and then
pushing the lever down to set the new speed.
■ Automatic cruise control cancelation
Cruise control will stop maintaining the vehicle speed in any of the following
situations.
●Actual vehicle speed is below approximately 20 mph (30 km/h).
● VSC is activated.
■ The system may be malfunctioning when
In the following situations, the system may be malfunctioning. Have the vehi-
cle inspected by your Toyota dealer.
●The cruise control indicator light comes on in yellow.
● The cruise control indicator does not come on even when the “ON-OFF”
button is pressed while the engine is running.

185
2-4. Using other
driving systems
2
When driving
When the TRAC/VSC systems are operating
The slip indicator light will flash
while the TRAC (brake LSD
function)/VSC systems are oper-
ating.
Disabling the TRAC systemIf the vehicle gets stuck in mud, dirt or snow, the TRAC system may
reduce power from the engine to the wheels. Pressing to turn
the system off may make it easier for you to rock the vehicle in order
to free it.
In this case, the brake LSD function remains on. To turn the TRAC system off,
quickly press and release the
button.
The “TRAC OFF” indicator light
will come on.
Press the button again to turn the
system back on.

188 2-4. Using other driving systems
■Sounds and vibrations caused by the ABS, brake assist, TRAC and
VSC systems
● A sound may be heard from the engine compartment when the brake
pedal is depressed repeatedly, when the engine is started or just after the
vehicle begins to move. This sound does not indicate that a malfunction
has occurred in any of these systems.
● Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may
be heard. This does not indicate a malfunction.
■ Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automati-
cally reactivated in the following situations:
●When the engine switch is turned to “LOCK” position
● If only the TRAC system is turned off, the TRAC will turn on when vehicle
speed is more than approximately 31 mph (50 km/h).
If both the TRAC and VSC systems are turned off, automatic reactivation
will not occur when vehicle speed increases.

189
2-4. Using other
driving systems
2
When driving
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result. Should this occur,
refrain from excessive steering input or stop the vehicle and turn the engine
off. The EPS system should return to normal after a little while.
■ Automatic deactivation of “TRACK” mode
When the engine switch is turned to “LOCK” position after driving in
“TRACK” mode, the mode is automatically deactivated.
WARNING
■The ABS does not operate effectively when
●Tires with inadequate gripping ability are used (such as excessively worn
tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on wet or slick roads.
■ Stopping distance when the ABS is operating may exceed that of nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you in the following situ-
ations:
●When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or uneven surfaces
■ TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
■ When the VSC and/or brake LSD function is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.

191
2-4. Using other driving systems
2
When driving
Hill-start assist control
Hill-start assist control helps to maintain braking force to assist
starting off forward while facing uphill or starting off backward while
facing downhill. As hill-start assist control is initially disabled,
enable the system to make it op erable. The enabled/disabled setting
will be maintained the next time the engine is started.
The hill-start assist control ON
indicator will be illuminated
when system is enabled and
flash while the system is oper-
ating.
■ Enabling hill-start assist control
Park your vehicle in a flat, safe location.
Make sure that the parking brake is securely engaged.
Stop the engine by turning the engine switch to the “LOCK”
position.
Start the engine and check t hat the ABS warning light and
slip indicator are off.
Press and hold for
approximately 30 seconds.
Check that both the VSC off
indicator and “TRAC OFF” indi-
cator illuminate and then turn
off.
STEP 1
STEP 2
STEP 3
STEP 4

192 2-4. Using other driving systems
■When enabling the hill-start assist control
●If the hill-start assist control ON indicator does not illuminate or if an
incorrect operation is performed, turn the engine switch to the “LOCK”
position and then restart the enabling procedure from .
● If is pressed and held for approximately 30 seconds or more, the
VSC off indicator and “TRAC OFF” indicator will turn off and subsequent
operations of the switch will be rejected. In this case, the VSC system will
operate in normal mode. ( →P. 187) To enable , turn the engine
switch to the “ACC” or “LOCK” position and then restart the \
engine.
Within 5 seconds after the indicator lights turn off, release
. Then, press the switch again within 2 seconds of
releasing it.
The hill-start assist control ON indicator will illuminate and then
turn off.
Turn the engine switch to the “LOCK” position. Then, restart
the engine and check that the hill-start assist control ON
indicator is illuminated.
Hill-start assist control is enabled when the indicator is illumi-
nated.
To disable hill-start assist control, perform the above
through again.
STEP 5
STEP 6
STEP 1
STEP 6
STEP 4