2022 TOYOTA YARIS Owners Manual

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4-5. Using the driving support systems
Driving
WARNING

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4-5. Using the driving support systems
WARNING
■Situations unsuitable for dynamic radar cruise control
with full-speed range
Do not use dynamic radar cruise con- trol with full-speed range in any of the
following situations. Doing so may result in inappropriate speed control and could cause an accident resulting
in death or serious injury.
●Roads where there are pedestrians,
cyclists, etc.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those
covered with rain, ice or snow
●On steep downhills, or where there
are sudden changes between sharp up and down gradients
Vehicle speed may exceed the set
speed when driving down a steep hill.
●At entrances to freeways and high- ways
●When weather conditions are bad enough that they may prevent the
sensors from detecting correctly (fog, snow, sandstorm, heavy rain, etc.)
●When there is rain, snow, etc., on the front surface of the radar or
front camera
●In traffic conditions that require fre-
quent repeated acceleration and deceleration
●When your vehicle is towing a trailer (vehicles with towing pack-ages) or during emergency towing
●When an approach warning buzzer is heard often

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4-5. Using the driving support systems
Driving
This mode employs a radar to detect the presence of vehicles up to approx-
imately 100 m (328 ft.) ahead, d etermines the current vehicle-to-vehicle fol-
lowing distance, and operates to maintain a suitable following distance from
the vehicle ahead. The desired vehicle-to-vehicle distance can also be set
by operating the vehicle-to-vehicle distance switch.
When driving on downhill slopes, the vehicle-to-vehicle distanc e may become
shorter.
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed appe ars
When a vehicle is detected running ahead of you, the system automatically deceler-
ates your vehicle. When a greater reduction in vehicle speed is necessary, the sys-
tem applies the brakes (the stop lights will come on at this ti me). The system will
respond to changes in the speed of the vehicle ahead in order t o maintain the vehi-
cle-to-vehicle distance set by the driver. Approach warning war ns you when the sys-
tem cannot decelerate sufficiently to prevent your vehicle from closing in on the
vehicle ahead.
When the vehicle ahead of you stops, your vehicle will also sto p (vehicle is stopped
by system control). After the vehicle ahead starts off, pressin g the “+RES” switch or
depressing the accelerator pedal (start-off operation) will res ume follow-up cruising.
If the start-off operation is not performed, system control con tinues to keep your
vehicle stopped.
Driving in vehicle-to-vehicle distance control mode

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4-5. Using the driving support systems
When the turn signal lever is operated and your vehicle moves t o an overtaking lane
while driving at 80 km/h (50 mph) or more, the vehicle will acc elerate to help to over-
take a passing vehicle.
The system’s identification of what is an overtaking lane may b e determined solely
based on the location of the steering wheel in the vehicle (lef t side driver position
versus right side driver position.) If the vehicle is driven to a region where the over-
taking lane is on a different side from where the vehicle is no rmally driven, the vehi-
cle may accelerate when the turn signal lever is operated in th e opposite direction to
the overtaking lane (e.g., if the driver normally operates the vehicle in a region
where the overtaking lane is to the right but then drives to a region where the over-
taking lane is to the left, the vehicle may accelerate when the right turn signal is acti-
vated).
Example of 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 syst em then returns to
constant speed cruising.
1 Press the cruise control main
switch to activate the cruise con-
trol.
Dynamic radar cruise control indicator will come on and a message will be dis-played on the multi-information display.
Press the switch again to deactivate the cruise control.
If the cruise control main switch is
pressed and held for 1.5 seconds or more, the system turns on in constant
speed control mode. ( P.237)
“Radar Ready”
2 Accelerate or decelerate, with
accelerator pedal operation, to
the desired vehicle speed (at or
above approximately 30 km/h
[20 mph]) and press the “-SET”
switch to set the speed.
Cruise control “SET” indicator will come on.
The vehicle speed at the moment the
switch is released becomes the set
Setting the vehicle speed
(vehicle-to-vehicle distance
control mode)

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4-5. Using the driving support systems
Driving
speed.
■Adjusting the set speed by the
switch
To change the set speed, press the
“+RES” or “-SET” switch until the
desired set speed is displayed.
1 Increases the speed (Except
when the vehicle has been
stopped by system control in
vehicle-to-vehicle distance con-
trol mode)
2 Decreases the speed
Fine adjustment: Press the switch.
Large adjustment: Press and hold the
switch to change the speed, and
release when the desired speed is
reached.
In the vehicle-to-vehicle distance
control mode, the set speed will be
increased or decreased as follows:
Fine adjustment: By 1 km/h (0.6 mph)*1
or 1 mph (1.6 km/h)*2 each time the
switch is pressed
Large adjustment: Increases or
decreases in 5 km/h (3.1 mph)*1 or 5
mph (8 km/h)*2 increments for as long
as the switch is held
In the constant speed control mode
( P.237), the set speed will be
increased or decreased as follows:
Fine adjustment: By 1 km/h (0.6 mph)*1
or 1 mph (1.6 km/h)*2 each time the
switch is pressed
Large adjustment: The speed will con-
tinue to change while the switch is held.
*1: When the set speed is shown in
“km/h”
*2: When the set speed is shown in
“MPH”
■Increasing the set speed by
the accelerator pedal
1 Accelerate with accelerator
pedal operation to the desired
vehicle speed
2 Press the “-SET” switch
Pressing the switch changes the
vehicle-to-vehicle distance as fol-
lows:
Adjusting the set speed
Changing the vehicle-to-
vehicle distance (vehicle-to-
vehicle distance control
mode)

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4-5. Using the driving support systems
1Long
2 Medium
3 Short
If a vehicle is running ahead of you, the
preceding vehicle mark will also be
displayed.
Select a distance from the table
below. Note that the distances
shown correspond to a vehicle
speed of 80 km/h (50 mph). Vehi-
cle-to-vehicle distance
increases/decreases in accor-
dance with vehicle speed. When
the vehicle is stopped by system
control, the vehicle stops at a cer-
tain vehicle-to-vehicle distance
depending on the situation.
After the vehicle ahead of you
starts off, press the “+RES” switch.
Your vehicle will also resume fol-
low-up cruising if the accelerator
pedal is depressed after the vehicle
ahead of you starts off.
Vehicle-to-vehicle distance
settings (vehicle-to-vehicle
distance control mode)
Distance
options
Vehicle-to-vehicle dis-
tance
LongApproximately 50 m (160
ft.)
MediumApproximately 40 m (130
ft.)
ShortApproximately 30 m (100
ft.)
Resuming follow-up cruis-
ing when the vehicle has
been stopped by system
control (vehicle-to-vehicle
distance control mode)
Distance
options
Vehicle-to-vehicle dis-
tance

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4-5. Using the driving support systems
Driving
1Pressing the cancel switch can-
cels the speed control.
The speed control is also canceled
when the brake pedal is depressed.
(When the vehicle has been stopped by
system control, depressing the brake
pedal does not cancel the setting.)
2 Pressing the “+RES” switch
resumes the cruise control and
returns vehicle speed to the set
speed.
When your vehicle is too close to a
vehicle ahead, and sufficient auto-
matic 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 follow-
ing a vehicle. Depress the brake
pedal to ensure an appropriate
vehicle-to-vehicle distance.
■Warnings may not occur when
In the following instances, warnings
may not occur even when the vehi-
cle-to-vehicle distance is small.
 When the speed of the preceding
vehicle matches or exceeds your
vehicle speed
 When the preceding vehicle is
traveling at an extremely slow
speed
 Immediately after the cruise con-
trol speed was set
 When depressing the accelerator
pedal
When constant speed control mode
is selected, your vehicle will main-
tain a set speed without controlling
the vehicle-to-vehicle distance.
Select this mode only when vehi-
cle-to-vehicle distance control
mode does not function correctly
due to a dirty radar, etc.
1 With the cruise control off, press
and hold the cruise control main
switch for 1.5 seconds or more.
Canceling and resuming the
speed control
Approach warning (vehicle-
to-vehicle distance control
mode)
Selecting constant speed
control mode

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4-5. Using the driving support systems
Immediately after the switch is pressed,
the dynamic radar cruise control indica- tor will come on. Afterwards, it switches to the cruise control indicator.
Switching to constant speed control mode is only possible when operating the switch with the cruise control off.
2 Accelerate or decelerate, with
accelerator pedal operation, to
the desired vehicle speed (at or
above approximately 30 km/h
[20 mph]) and press the “-SET”
switch to set the speed.
Cruise control “SET” indicator will come on.
The vehicle speed at the moment the switch is released becomes the set speed.
Adjusting the speed setting: P. 2 3 5
Canceling and resuming the speed set- ting: P. 2 3 7
When this function is enabled and
the system is operating in vehicle-
to-vehicle distance control mode
( P.233), when a speed limit sign
is detected, the recognized speed
limit will be displayed with an
up/down arrow. The set speed can
be increased/reduced to the recog-
nized speed limit by pressing and
holding the “+RES”/“-SET” switch.
 When the current set speed is
lower than the recognized speed
limit
Press and hold the “+RES” switch.
 When the current set speed is
higher than the recognized
speed limit
Dynamic Radar Cruise Con-
trol with Road Sign Assist (if
equipped)