2020 TOYOTA GR YARIS warning

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YARIS(GR) Owner's Manual_Europe_M52L09_en
4-5. Using the driving support systems
●If the operation conditions (→P.178)
are no longer met while the lane cen-
tering function is operating, the buzzer
may sound to indicate that the func-
tion has been temporarily canceled.
■Steering assist function/lane cen-
tering function
●Depending on the vehicle speed, lane
departure situation, road conditions,
etc., the driver may not feel the func-
tion is operating or the function may
not operate at all.
●The steering control of the function is
overridden by the driver’s steering
wheel operation.
●Do not attempt to test the operation of
the steering assist function.
■Lane departure alert function
●The warning buzzer may be difficult to
hear due to external noise, audio play-
back, etc.
●If the edge of the course* is not clear
or straight, the lane departure alert
function may not operate.
●Vehicle with BSM: It may not be possi-
ble for the system to determine if there
is a danger of a collision with a vehicle
in an adjacent lane.
●Do not attempt to test the operation of
the lane departure alert function.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
■Hands off steering wheel warning
In the following situations, a warning
message urging the driver to hold the
steering wheel and the symbol shown in
the illustration are displayed on the
multi-information display to warn the
driver. The warning stops when the sys-
tem determines that the driver holds the
steering wheel. Always keep your hands
on the steering wheel when using this
system, regardless of warnings.
●When the system determines that the
driver is driving without holding the
steering wheel while the system is
operating
If the driver continues to keep their
hands off of the steering wheel, the
buzzer sounds, the driver is warned and
the function is temporarily canceled.
This warning also operates in the same
way when the driver continuously oper-
ates the steering wheel only a small
amount.
●When the system determines that the
vehicle may deviate from the lane
while driving around a curve while the
lane centering function is operating.
Depending on the vehicle condition and
road conditions, the warning may not
operate. Also, if the system determines
that the vehicle is driving around a
curve, warnings will occur earlier than
during straight-lane driving.
●When the system determines that the
driver is driving without holding the
steering wheel while the steering
wheel assist of the steering assist
function is operating.
If the driver continues to keep their
hands off of the steering wheel and the
steering wheel assist is operating, the
buzzer sounds and the driver is warned.
Each time the buzzer sounds, the con-
tinuing time of the buzzer becomes lon-
ger.
■Vehicle sway warning function
When the system determines that the
vehicle is swaying while the vehicle

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YARIS(GR) Owner's Manual_Europe_M52L09_en
4-5. Using the driving support systems
Driving
sway warning function is operating, a
buzzer sounds and a warning message
urging the driver to rest and the symbol
shown in the illustration are simultane-
ously displayed on the multi-information
display.
Depending on the vehicle and road con-
ditions, the warning may not operate.
■Warning message
If the following warning message is dis-
played on the multi-information display
and the LTA indicator illuminates in
orange, follow the appropriate trouble-
shooting procedure. Also, if a different
warning message is displayed, follow
the instructions displayed on the screen.
●“LTA Malfunction Visit Your Dealer”
The system may not be operating prop-
erly. Have the vehicle inspected by any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
●“LTA Unavailable”
The system is temporarily canceled due
to a malfunction in a sensor other than
the front camera. Turn the LTA system
off, wait for a little while, and then turn
the LTA system back on.
●“LTA Unavailable at Current Speed”
The function cannot be used as the
vehicle speed exceeds the LTA opera-
tion range. Drive slower.
■Customization
Function settings can be changed. (Cus-
tomizable features: →P.361)
*: If equipped
In vehicle-to-vehicle distance con-
trol mode, the vehicle automati-
cally accelerates and decelerates
to match the speed changes of the
preceding vehicle even if the accel-
erator pedal is not depressed. In
constant speed control mode, the
vehicle runs at a fixed speed.
Use the dynamic radar cruise con-
trol on freeways and highways.
zVehicle-to-vehicle distance con-
trol mode (→P.184)
zConstant speed control mode
(→P.188)
■Meter display
Multi-information display
Set speed
Indicators
Dynamic radar cruise
control
*
Summary of functions
System components

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4-5. Using the driving support systems
■Operation switches
Vehicle-to-vehicle distance
switch
“+RES” switch
Cancel switch
“-SET” switch
Cruise control main switch
WARNING
■Before using dynamic radar cruise control
●Driving safely is the sole responsi-bility of the driver. Do not rely solely on the system, and drive safely by
always paying careful attention to your surroundings.
●The dynamic radar cruise control provides driving assistance to
reduce the driver’s burden. How- ever, there are limitations to the assistance provided.
Read the following conditions care-
fully. Do not overly rely on this system
and always drive carefully.
• When the sensor may not be cor- rectly detecting the vehicle ahead: → P. 1 9 0
• Conditions under which the vehicle- to-vehicle distance control mode may not function correctly: →P. 1 9 1
●Set the speed appropriately depending on the speed limit, traffic flow, road conditions, weather con-
ditions, etc. The driver is responsi- ble for checking the set speed.
●Even when the system is function-ing normally, the condition of the preceding vehicle as detected by
the system may differ from the con- dition observed by the driver. Therefore, the driver must always
remain alert, assess the danger of each situation and drive safely. Relying solely on this system or
assuming the system ensures safety while driving can lead to an accident, resulting in death or seri-
ous injury.
●Switch the dynamic radar cruise
control setting to off, using the cruise control main switch when not in use.
■Cautions regarding the driving assist systems
Observe the following precautions, as there are limitations to the assistance provided by the system. Failure to do
so may cause an accident resulting in death or serious injury.
●Assisting the driver to measure fol-lowing distance
The dynamic radar cruise control is
only intended to help the driver in
determining the following distance
between the driver’s own vehicle and
a designated vehicle traveling ahead.
It is not a mechanism that allows
careless or inattentive driving, and it
is not a system that can assist the
driver in low-visibility conditions.
It is still necessary for driver to pay
close attention to the vehicle’s sur-
roundings.

183
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YARIS(GR) Owner's Manual_Europe_M52L09_en
4-5. Using the driving support systems
Driving
WARNING
●Assisting the driver to judge proper following distance
The dynamic radar cruise control
determines whether the following dis-
tance between the driver’s own vehi-
cle and a designated vehicle traveling
ahead is within a set range. It is not
capable of making any other type of
judgement. Therefore, it is absolutely
necessary for the driver to remain vig-
ilant and to determine whether or not
there is a possibility of danger in any
given situation.
●Assisting the driver to operate the
vehicle
The dynamic radar cruise control
does not include functions which will
prevent or avoid collisions with vehi-
cles ahead of your vehicle. Therefore,
if there is ever any possibility of dan-
ger, the driver must take immediate
and direct control of the vehicle and
act appropriately in order to ensure
the safety of all involved.
■Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise con-
trol 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
●During emergency towing
●When an approach warning buzzer is heard often

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YARIS(GR) Owner's Manual_Europe_M52L09_en
4-5. Using the driving support systems
This mode employs a radar to detect the presence of vehicles up to approx-
imately 100 m (328 ft.) ahead, determines 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 distance 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 appears
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 time). The system will
respond to changes in the speed of the vehicle ahead in order to maintain the vehi-
cle-to-vehicle distance set by the driver. Approach warning warns you when the sys-
tem cannot decelerate sufficiently to prevent your vehicle from closing in on the
vehicle ahead.
When the turn signal lever is operated and your vehicle moves to an overtaking lane
while driving at 80 km/h (50 mph) or more, the vehicle will accelerate to help to over-
take a passing vehicle.
The system’s identification of what is an overtaking lane may be determined solely
based on the location of the steering wheel in the vehicle (left side driver position
Driving in vehicle-to-vehicle distance control mode

187
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YARIS(GR) Owner's Manual_Europe_M52L09_en
4-5. Using the driving support systems
Driving
speed of 80 km/h (50 mph). Vehi-
cle-to-vehicle distance
increases/decreases in accor-
dance with vehicle speed.
1 Pressing the cancel switch can-
cels the speed control.
The speed control is also canceled
when the brake pedal is depressed.
2 Pressing the “+RES” switch
resumes the cruise control and
returns vehicle speed to the set
speed.
However, cruise control does not
resume when the vehicle speed is
approximately 25 km/h (16 mph) or
less.
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.
z When the speed of the preceding
vehicle matches or exceeds your
vehicle speed
z When the preceding vehicle is
traveling at an extremely slow
speed
z Immediately after the cruise con-
trol speed was set
z When depressing the accelerator
pedal
Distance
options
Vehicle-to-vehicle dis-
tance
LongApproximately 50 m (160
ft.)
MediumApproximately 40 m (130
ft.)
ShortApproximately 30 m (100
ft.)
Canceling and resuming the
speed control
Approach warning (vehicle-
to-vehicle distance control
mode)

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4-5. Using the driving support systems
matically canceled in the following situa-
tions:
●Actual vehicle speed is more than
approximately 16 km/h (10 mph)
below the set vehicle speed.
●Actual vehicle speed falls below
approximately 30 km/h (20 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is
turned off.
●Pre-collision braking is activated.
●When the shift lever is in N or the
clutch pedal is depressed for a certain
amount of time or more.
●The parking brake is operated.
If constant speed control mode is auto-
matically canceled for any reasons other
than the above, there may be a malfunc-
tion in the system. Contact any autho-
rized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
■The Dynamic Radar Cruise Control
with Road Sign Assist may not
operate properly when
As the Dynamic Radar Cruise Control
with Road Sign Assist may not operate
properly in conditions in which RSA may
not operate or detect correctly
(→P.194), when using this function,
make sure to check the speed limit sign
displayed.
In the following situations, the set speed
may not be changed to the recognized
speed limit by pressing and holding the
“+RES”/“-SET” switch.
●If speed limit information is not avail-
able
●When the recognized speed limit is
the same as the set speed
●When the recognized speed limit is
outside of the speed range that the
dynamic radar cruise control system
can operate
■Brake operation
A brake operation sound may be heard
and the brake pedal response may
change, but these are not malfunctions.
■Warning messages and buzzers for
dynamic radar cruise control
Warning messages and buzzers are
used to indicate a system malfunction or
to inform the driver of the need for cau-
tion while driving. If a warning message
is shown on the multi-information dis-
play, read the message and follow the
instructions. (→P.158, 323)
■When the sensor may not be cor-
rectly detecting the vehicle ahead
In the case of the following and depend-
ing on the conditions, operate the brake
pedal when deceleration of the system
is insufficient or operate the accelerator
pedal when acceleration is required.
As the sensor may not be able to cor-
rectly detect these types of vehicles, the
approach warning (→P.187) may not be
activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the
same lane
●Vehicles with small rear ends (trailers
with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the
surrounding vehicles hinders the
detecting of the sensor
●When your vehicle is pointing
upwards (caused by a heavy load in
the luggage compartment, etc.)

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4-5. Using the driving support systems
*: If equipped
The RSA system recognizes spe-
cific road signs using the front cam-
era and/or navigation system (when
speed limit information is available)
to provide information to the driver
via the display.
If the system judges that the vehicle
is being driven over the speed limit,
performing prohibited actions, etc.,
according to the recognized road
signs, it notifies the driver through a
visual notification and notification
buzzer.
When the front camera recognizes
a sign and/or information of a sign
is available from the navigation sys-
tem, the sign will be displayed on
the multi-information display.
z When the driving support system
information is selected, a maxi-
mum of 3 signs can be dis-
played. ( →P. 8 6 )
z When a tab other than the driving
support system information is
selected, the following types of
road signs will be displayed.
( →P. 8 6 )
• Speed limit begins/ends sign
• Speed limit related information sign
(Highway, Motorway, Urban area,
Residential area)
• End of prohibition sign
• No-entry sign* (when notification is
necessary)
• Speed limit with supplemental sign
(Ramp way only)
*: For vehicles with navigation system
RSA (Road Sign Assist)*
Summary of function
WARNING
■Before using the RSA
Do not rely solely upon the RSA sys-
tem. RSA is a system which supports the driver by providing information, but it is not a replacement for a
driver’s own vision and awareness. Drive safely by always paying careful attention to the traffic rules.
Indication on the multi-infor-
mation display