2019 TOYOTA GT86 Owners Manual (in English)

249
2-4. Using other driving systems
2
When driving
■
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 ju st 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 system s are
operating. None of these indicates that a malfunction has occur red.
• 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 activa ted.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring so und) 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:
● Vehicles without a smart key system: When the engine switch is turned to
“LOCK” position
● Vehicles with a smart key system: When the “ENGINE START STOP”
switch is turned off
● 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 reac tivation
will not occur when vehicle speed increases.

250 2-4. Using other driving systems
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the s ystem from
overheating when there is frequent steering input over an exten ded period of
time. The steering wheel may feel heavy as a result. Should thi s 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 whil e.
■ Automatic deactivatio n of “TRACK” mode
Vehicles without a smart key system
When the engine switch is turned to “LOCK” position after drivi ng in
“TRACK” mode, the mode is automatically deactivated.
Vehicles with a smart key system
When the “ENGINE START STOP” switch is turned off 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 excess ively 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

251
2-4. Using other driving systems
2
When driving
WARNING
■
TRAC may not operate effectively when
Directional control and power may not be achievable while drivi ng on slip-
pery road surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and powe r may be lost.
■ When the VSC and/or brake LSD function is activated
The slip indicator light flashes. Always drive carefully. Reckl ess driving may
cause an accident. Exercise particular care when the indicator light flashes.
■ When the TRAC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the r oad condi-
tions. As these are the systems to help ensure vehicle stability and driving
force, do not turn the TRAC/VSC systems off unless necessary.
■ Replacing tires
Make sure that all tires are of the specified size, brand, trea d pattern and
total load capacity. In addition, make sure that the tires are inflated to the
recommended tire inflation pressure level.
The ABS, TRAC and VSC systems will not function correctly if di fferent tires
are installed on the vehicle.
Contact your Toyota dealer for further information when replaci ng tires or
wheels.
■ Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect
the driving assist systems, and may cause a system to malfuncti on.

252
2-4. Using other driving systems
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 operable. The enabled/disabled set ting
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 (vehicles without a smart key system) or turning
the “ENGINE START STOP” switch off (vehicles with a
smart key system).
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

253
2-4. Using other driving systems
2
When driving
■
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 (vehicles without a smart key system) or turn the “ENGINE
START STOP” switch off (vehicles with a smart key system) and t hen
restart the enabling procedure from .
● If is pressed and held for approximately 30 seconds or more, t he
VSC off indicator and “TRAC OFF” indicator will turn off and su bsequent
operations of the switch will be rejected. In this case, the VSC system will
operate in normal mode. ( P. 248) To enable , turn the engine
switch to the “ACC” or “LOCK” position (vehicles without a smar t key sys-
tem) or turn the “ENGINE START STOP” switch off (vehicles with a smart
key system) 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 (vehicles
without a smart key system) or turn the “ENGINE START
STOP” switch off (vehicles with a smart key system). 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 illu mi-
nated.
To disable hill-start assist control, perform the above
through again.
STEP 5
STEP 6
STEP 1
STEP 6
STEP 4

254 2-4. Using other driving systems
■Operating conditions of hill-start assist control
When the following conditions are met, the hill-start assist co ntrol will oper-
ate:
● Vehicles with an automatic transmission: The shift lever is in D or M
(when starting off forward on while facing uphill) or in R (whe n starting off
backward while facing downhill).
● Vehicles with a manual transmission: The shift lever is in a po sition other
than R (when starting off forward while facing uphill) or in R (when start-
ing off backward while facing downhill).
● The vehicle is stopped.
● The accelerator pedal is not depressed.
● The parking brake is not engaged.
■ Hill-start assist control will not operate when
Hill-start assist control will not operate when any of the following conditions
are met:
●Vehicles with an automatic transmission: The shift lever is in a position
other than D or M (when facing uphill) or in a position other t han R (when
facing downhill).
● Vehicles with a manual transmission: The shift lever is in R (w hen facing
uphill) or in a position other than R (when facing downhill).
● Vehicles with an automatic transmission: The accelerator pedal is
depressed.
● The parking brake is applied.
● Vehicles with a manual transmission: The clutch is engaged.
● Approximately 2 seconds have elapsed since the brake pedal was
released.
● The hill-start assist control ON indicator is not illuminated.
● Vehicles without a smart key system: The engine switch is turne d to the
“ACC” or “LOCK” position.
● Vehicles with a smart key system: The “ENGINE START STOP” switc h is
turned to ACCESSORY mode or turned off.

255
2-4. Using other driving systems
2
When driving
■
Notes for hill-start assist control
●A slight jolt may be felt when starting off backward with the s hift lever in R
and then moving forward.
● If the braking power of hill-start assist control is insufficient, depress the
brake pedal.
● While the vehicle is stopped, make sure to depress the brake pe dal.
■ 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 slip indicator is illuminated.
● The hill-start assist control ON indicator turns off and a buzz er sounds.
WARNING
■Hill-start assist control precautions
●Do not overly rely on hill-start assist control. Hill-start assist control may
not operate effectively on steep inclines and roads covered wit h ice.
● Unlike the parking brake, hill-start assist control is not inte nded to hold the
vehicle stationary for an extended period of time. Do not attempt to use
hill-start assist control to hold the vehicle on an incline, as doing so may
lead to an accident.
● Do not stop the engine while hill-start assist control is operating, as hill-
start assist control will stop operating, possibly leading to a n accident.

256
2-5. Driving information
Cargo and luggage
Capacity and distributionCargo capacity depends on the to tal weight of the occupants.
(Cargo capacity) = (Tot al load capacity) - (Total weight of occ upants)
Steps for Determini ng Correct Load Limit 
(1)Locate the statement “The co mbined weight of occupants and
cargo should never exceed XXX kg or XXX lbs.” on your vehicle's
placard.
(2)Determine the combined weight of the driver and passengers t hat
will be riding in your vehicle.
(3)Subtract the combined weight of the driver and passengers fr om
XXX kg or XXX lbs.
(4)The resulting figure equals the available amount of cargo and lug- gage load capacity.
For example, if the “XXX” amount equals 1400 lbs. and there will
be five 150 lb passengers in your vehicle, the amount of availa ble
cargo and luggage load capacity is 650 lbs. (1400 - 750 (5  150) =
650 lbs.)
(5)Determine the combined wei ght of luggage and cargo being
loaded on the vehicle. That weight may not safely exceed the av ail-
able cargo and luggage load ca pacity calculated in Step 4.
Take notice of the following information about storage precau-
tions, cargo capacity and load:
●Stow cargo and luggage in t he trunk whenever possible.
● Be sure all items are secured in place.
● To maintain vehicle balance while driving, position luggage
evenly within the luggage compartment.
● For better fuel economy, do no t carry unnecessary weight.