TOYOTA MIRAI 2021 (in English) Workshop Manual

49
(1) Press “
” switches and select “” from the Multi-Information Display (MID).
(2) Press “
” switches and select “LDA” and then press “.” The setting screen
is displayed.
(3) Press “
” switches and select “Vehicle sway warning sensitivity” and th\
en
press “
” to select desired setting.
(4) Press “
” to go back to the menu.
Refer to the Toyota Owner’s Manual for additional information on LDA \
operation,
settings adjustments, limitations, and precautions before attempting to \
use it. (1) Press “
” switches and select “” from the Multi-Information Display (MID).
(2) Press “
” switches and select “LDA” and then press “.” The setting screen
is displayed.
(3) Press “
” switches and select “Vehicle sway warning function” and then \
press
“
” to select desired setting.
(4) Press “
” to go back to the menu.
Note: Operation of the LDA system and setting adjustments continues in the
same condition regardless of Ignition cycle until changed by the driver or the
system is reset.
ADJUSTING SWAY ALERT SENSITIVITY
DISABLING LDA SWAY WARNING SYSTEM
OVERVIEW
HYDROGEN FUEL CELL SYSTEM
& SAFETY FEATURES
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES

50
TOYOTA SAFETY SENSE™
TURNING THE LTA SYSTEM ON/OFF
Press the LTA switch to turn the LTA system on. Depress again to turn it\
off.
Note: Operation of the LTA system and setting adjustments continues in the
same condition regardless of Ignition cycle until changed by the driver or the
system is reset.
Refer to the Toyota Owner’s Manual for additional information on LTA \
operation,
settings adjustments, limitations, and precautions before attempting to \
use it.
When Full-Speed Range Dynamic Radar Cruise Control (DRCC) is enabled a\
nd
lane markers are detectable, Lane Tracing Assist (LTA) uses the lines \
on the road
and/or preceding vehicles to help keep the vehicle centered in its lane.\

See www.toyota.com/safety-sense for model applicability.
Refer to the Toyota Owner’s Manual for a list of additional situation\
s in which the
system operation may be limited.
Lane Tracing Assist (LTA)
- “LTA Turned ON Steering Assist Active”

OVERVIEW
HYDROGEN FUEL CELL SYSTEM
& SAFETY FEATURES
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY
& EMERGENCY FEATURES
51
LANE TRACING ASSIST
LTA function display
(2)
(1)
Lane Departure Alert (LDA) indicator flashes orange when operating.
The LTA function displays when the Multi-Information Display (MID) is
switched to the driving assist system information screen.
(1) The system displays solid white lines on the LTA indicator when vi\
sible lane markers or the road are detected. A side flashes orange to alert the dri\
ver when
the vehicle deviates from its lane.
(2) The system displays outlines on the LTA indicator when lane marker\
s or the road are not detected or the function is temporarily canceled.
Note: When operation conditions are no longer met, a function may be
temporarily canceled. However, when the operation conditions are met again,
operation of the function is automatically restored. For example, LTA may not
function on the side(s) where white/yellow lines are not detectable.
OVERVIEW
HYDROGEN FUEL CELL SYSTEM
& SAFETY FEATURES
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES
Operation display
of steering wheel
operation support Follow-up
cruising display
LTA indicator
Lane markers

52
ADJUSTING LTA ALERT SENSITIVITY
DISABLING STEERING ASSIST
The driver can adjust the sensitivity of the LTA (warning) function fr\
om the
Multi-Information Display (MID) customization screen.High - Is designed to warn approximately before the front
tire crosses the lane marker.
Normal - Is designed to warn approximately when the front
tire crosses the lane marker.
(1) Press “
” switches and select “” from the Multi-Information Display (MID).
(2) Press “
” switches and select “LTA” and then press “.” The setting screen
is displayed.
(3) Press “
” switches and select “Alert sensitivity” and then press “” to select
desired setting.
(4) Press “
” to go back to the menu.
(1) Press “
” switches and select “” from the Multi-Information Display (MID).
(2) Press “
” switches and select “LTA” and then press “.” The setting screen
is displayed.
(3) Press “
” switches and select desired setting and then press “.”
(4) Press “
” to go back to the menu.
Note: Operation of the LTA system and setting adjustments continues in the
same condition regardless of Ignition cycle until changed by the driver or the
system is reset.
TOYOTA SAFETY SENSE™

OVERVIEW
HYDROGEN FUEL CELL SYSTEM
& SAFETY FEATURES
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY
& EMERGENCY FEATURES
53
OVERVIEW
HYDROGEN FUEL CELL SYSTEM
& SAFETY FEATURES
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES
LANE CENTERING
The lane centering function is linked with Full-Speed Range Dynamic Rada\
r Cruise
Control (DRCC) and provides the required assistance by operating the s\
teering
wheel to keep the vehicle in its current lane.
When Full-Speed Range Dynamic Radar Cruise Control (DRCC) is not opera\
ting,
the lane centering function does not operate.
(1) Press “
” switches and select “” from the Multi-Information Display (MID).
(2) Press “
” switches and select “LTA” and then press “.” The setting screen
is displayed.
(3) Press “
” switches and select “Lane centering function” and then press \
“”
to select the desired setting.
(4) Press “
” to go back to the menu.
Note: Operation of the LTA system and setting adjustments continues in the
same condition regardless of Ignition cycle until changed by the driver or the
system is reset.
Refer to the Toyota Owner’s Manual for additional information on LTA \
operation,
settings adjustments, limitations, and precautions before attempting to \
use it.
DISABLING LANE CENTERING FUNCTION

54
TURNING SYSTEM ON/OFF
ADJUSTING SET SPEED
(1)
Push once: On
Push twice: Off
(2) (3)
TOYOTA SAFETY SENSE™
Intended for highway use, Full-Speed Range Dynamic Radar Cruise Control \
(DRCC) lets you drive at a preset speed. The system is designed to fun\
ction
between 0-110 mph* and uses vehicle-to-vehicle distance control, helping\
maintain
a preset distance from the vehicle ahead of you.*
* See www.toyota.com/safety-sense for more information.
Refer to the Toyota Owner’s Manual for a list of additional situation\
s in which the
system operation may be limited.
Refer to page 58 for switching to Constant Speed (Cruise) Control Mode\
.
Increase speed/Resume
Cancel*
Set/Decrease speed
*
The speed control may also be canceled by depressing the brake pedal.
Vehicle will cruise at a set speed, decelerate to maintain a selected di\
stance from a
slower vehicle traveling in front and accelerate back up to the selected\
speed if the
vehicle in front changes lanes or speeds up.
(1) Push the “
” to turn DRCC system ON. The “Radar Ready” and “”
indicator will come on.
(2) Use the steering wheel controls to increase speed by pushing “ +RES” or
decrease the speed by pushing “ -SET”. Push and hold to make a large
adjustment or push each time to make fine adjustments (1 mph [1.6 km/h]\
or 1
km/h [0.6 mph] increments).
(3) Push “Cancel” to cancel the speed control.
Multi-Information
Display Set speed Full-Speed Range
Dynamic Radar Cruise
Control vehicle-to-
vehicle distance button
Cruise control
switch
Indicators
Full-Speed Range Dynamic Radar Cruise
Control (DRCC)

55
ADJUSTING DISTANCE
This mode employs a radar sensor to detect the presence of a preceding v\
ehicle
up to approximately 328 ft (100 m) ahead, determines the current vehic\
le-to-vehicle
following distance and operates to maintain a preset following distance \
from the
vehicle ahead. These distances vary based on vehicle speed.
(1) (2) (3)
(1) Constant speed cruising when there are no vehicles ahead
The vehicle travels at the speed set by the driver. The desired vehicle-\
to-
vehicle distance can also be set by operating the vehicle-to-vehicle dis\
tance
control.
(2) Deceleration cruising and follow-up cruising when a preceding vehicle
driving slower than the set speed appears When a slower vehicle is detected running ahead of you, the system
automatically decelerates your vehicle. When a greater reduction in vehi\
cle
speed is necessary, the system may apply the brakes (the brake lights w\
ill
come on at this time). The system will respond to changes in the speed \
of the
vehicle ahead in order to maintain the vehicle-to-vehicle distance set b\
y the
driver. A warning tone warns you when the system cannot decelerate suffi\
ciently
to prevent your vehicle from closing in on the vehicle ahead.
Note: Vehicle-to-vehicle distance will close in when traveling on long downhill
slopes.
OVERVIEW
HYDROGEN FUEL CELL SYSTEM
& SAFETY FEATURES
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES
To change the vehicle-to-vehicle distance:
Push the “
” button to cycle through the
settings, which will change progressively. LONG
(default setting) MEDIUM
SHORT
Preceding vehicle
mark

56
TOYOTA SAFETY SENSE™
SWITCHING TO CONSTANT SPEED (CRUISE) CONTROL MODE
SETTING CONSTANT SPEED (CRUISE) CONTROL
Note: When your vehicle is too close to a vehicle ahead, and sufficient automatic
deceleration via the cruise control is not possible, the display will flash and the
buzzer will sound to alert the driver. An example of this would be if another driver
cuts in front of you while you are following a vehicle. Depress the brake pedal to
ensure an appropriate vehicle-to-vehicle distance.
If you are already using DRCC “”, push the button to turn the system off first,
then push and hold the button for at least 1.5 seconds to switch.
Note: When the vehicle is turned off, it will automatically default to DRCC.
Refer to the Toyota Owner’s Manual for additional information on DRCC\
operation,
settings adjustments, limitations, and precautions before attempting to \
use it.
1.5 seconds
Set
(3) Acceleration when there are no longer any preceding vehicles driving
slower than the set speed The system accelerates until the set speed is reached. The system then
returns to constant speed cruising.
To adjust speed or cancel, see steps (2) and (3) of ADJUSTING SET SPEED on
page 56.
ADJUSTING DISTANCE (CONTINUED)

57
Automatic High Beams (AHB)
ACTIVATING THE AHB SYSTEM
CONDITIONS WHERE AHB WILL TURN ON/OFF AUTOMATICALLY
When all of the following conditions are met, the high beams will be aut\
omatically
turned on (after approximately 1 second):• Vehicle speed is above approximately 21 mph (34 km/h).
• The area ahead of the vehicle is dark.
• There are no oncoming or preceding vehicles with headlights or tail\
lights turned on.
• There are few streetlights on the road ahead.
If any of the following conditions occur, the high beams will be automat\
ically turned off: • Vehicle speed drops below approximately 17 mph (27 km/h).
• The area ahead of the vehicle is not dark.
• Oncoming or preceding vehicles have headlights or tail lights turne\
d on.
• There are many streetlights on the road ahead.
The Automatic High Beams (AHB) safety system is designed to help you s\
ee
more clearly at night. At speeds above 25 mph, AHB can detect the headli\
ghts of
oncoming vehicles and taillights of preceding vehicles, then automatical\
ly toggles
between high and low beams accordingly.
See www.toyota.com/safety-sense for more information.
Refer to the Toyota Owner’s Manual for a list of additional situation\
s in which the
system operation may be limited.
(2) (1)
(1) Press the “
” switch.
(2) Turn the headlight switch to the “
” or “AUTO” position.
The AHB indicator will come on when the headlights are turned on automat\
ically
to indicate that the system is active.
Note: Push the lever away from you to manually turn on high beams. Press the
AHB switch to turn the AHB system off.
The AHB indicator will turn off and “
” or “” will turn on. To activate the
system again, pull the lever its original position or press the “
” switch.
OVERVIEW
HYDROGEN FUEL CELL SYSTEM
& SAFETY FEATURES
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES

58
TOYOTA SAFETY SENSE™
Road Sign Assist (RSA)
Using an intelligent camera, Road Sign Assist (RSA) is designed to det\
ect speed
limit signs, stop signs, do not enter signs and yield signs, and display\
them on the
Multi-Information Display (MID).*
* All vehicle actions must be driver-initiated and are not automated. See www.toyota.com/safety-sense for model applicability.
Refer to the Toyota Owner’s Manual for a list of additional situation\
s in which the
system operation may be limited.
RSA DISPLAY
When the driving support system
information display is selected,
a maximum of 3 signs can be
displayed.
TEMPORARILY SWITCHING TO THE LOW BEAMS
Pull the lever toward you and then return it to its original position to\
switch to the
low beams temporarily.
The high beams are on while the lever is pulled toward you, however, aft\
er the lever
is returned to its original position, the low beams remain on for a cert\
ain amount of
time. Afterwards, the Automatic High Beams will be activated again.
NOTE: It is recommended to switch to the low beams when the high beams
may cause problems or distress to other drivers or pedestrians nearby.
Refer to the Toyota Owner’s Manual for additional information on AHB \
operation,
settings adjustments, limitations, and precautions before attempting to \
use it.
When a tab other than the driving
support system information is selected,
the following types of road signs will be
displayed. • Speed limit sign
• Do Not Enter sign (when notification is necessary)