2021 TOYOTA C-HR buzzer

2754-5. Using the driving support systems
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Driving
C-HR_OM_USA_OM10684U
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.
■Warnings may not occur when
In the following instances, warnings may not occur even when th e
vehicle-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 control speed was set
● When depressing the accelerator pedal
Approach warning (vehicle-to-v ehicle distance control mode)

2784-5. Using the driving support systems
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Automatic cancelation of c onstant speed control mode
Constant speed control mode is automatically canceled in the following situa-
tions:
● Actual vehicle speed is more than approximately 10 mph (16 km/h ) below
the set vehicle speed.
● Actual vehicle speed falls below approximately 20 mph (30 km/h) .
● VSC is activated.
● TRAC is activated for a period of time.
● When the VSC or TRAC system is turned off.
● Pre-collision braking is activated.
If constant speed control mode is automatically canceled for any reasons
other than the above, there may be a malfunction in the system. Contact your
Toyota dealer.
■ 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 d ynamic radar cruise control with
full-speed range
Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for caution while driving. If a warning message
is shown on the multi-information display, read the message and follow the
instructions. ( P. 229, 444)
■ When the sensor may not be correctly detect ing the vehicle ahead
In the case of the following and depending on the conditions, o perate 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 correctly detect these types o f vehicles, the
approach warning ( P. 275) may not be activated.
● Vehicles that cut in suddenly
● Vehicles traveling at low speeds
● Vehicles that are not moving in the same lane

2924-5. Using the driving support systems
C-HR_OM_USA_OM10684U
RCTA (Rear Cross Traffic Alert)
The RCTA function uses the BSM rear side radar sensors installe d
behind the rear bumper. This function is intended to assist the driver
in checking areas that are not easily visible when backing up.
Outside rear view mirror indicators
When a vehicle approaching from the right or left at the rear of the vehicle
is detected, both outside rear view mirror indicators will flas h.
RCTA buzzer
If a vehicle approaching from the right or left at the rear of the vehicle is
detected, a buzzer will sound. The buzzer also sounds for appro ximately 1
second immediately after the RCTA function is operated to turn the system
on.
“RCTA OFF” indicator
Illuminates when the Rear Cross Traffic Alert is disabled.
Summary of the Rear Cross Traffic Alert
: If equipped

2934-5. Using the driving support systems
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Driving
C-HR_OM_USA_OM10684U
Press “” or “” of the meter control switches, select .
Press “ ” or “ ” of the meter control switches, select .
Press “ ” or “ ” of the meter control switches, select
“RCTA”.
When the RCTA function is disabled, the “RCTA OFF” indicator ( P. 292)
illuminates.
(Each time the engine switch is turned off then changed to ON, the RCTA
function will be enabled automatically.)
■ The outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indica tor may be dif-
ficult to see.
■ Hearing the RCTA buzzer
The RCTA buzzer may be difficult to hear over loud noises, such as if the
audio system volume is high.
■ When “RCTA Unavailable.” is shown on the multi-information display
Water, snow mud, etc., may be built up in the vicinity of the s ensor area of
bumper ( P. 286).
Removing the water, snow, mud, etc., from the vicinity of the s ensor area
bumper should return it to normal.
Also, the sensor may not function normally when used in extremely hot or
cold weather
■ When “RCTA Malfunction Visit You r Dealer.” is shown on the multi-infor-
mation display
There may be a sensor malfunction or misaligned. Have the vehicle
inspected by your Toyota dealer.
■ Rear side radar sensors
P. 286
Turning the RCTA function on/off
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2944-5. Using the driving support systems
C-HR_OM_USA_OM10684U
The RCTA functions when your vehicle is in reverse. It can dete ct
other vehicles approaching from the right or left rear of the v ehicle. It
uses radar sensors to alert the driver of the other vehicle’s existence
through flashing the outside rear view mirror indicators and so unding
a buzzer.
RCTA function
Approaching vehicles Detection areas
WARNING
■Cautions regarding the use of the function
The driver is solely responsible for safe driving. Always drive safely, taking
care to observe your surroundings.
The RCTA function is only a supplementary function which alerts the driver
that a vehicle is approaching from the right or left at the rea r of the vehicle.
As the RCTA function may not function correctly under certain c onditions,
the driver’s own visual confirmation of safety is necessary. Ov er reliance on
this function may lead to an accident resulting death or seriou s injury.

2954-5. Using the driving support systems
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Driving
C-HR_OM_USA_OM10684U
The areas that vehicles can be detected in are outlined below.
To give the driver a more consistent time to react, the buzzer can alert
for faster vehicles from farther away.
Example:
RCTA function detection areas
Approaching vehicleSpeedApproximate
alert distance
Fast18 mph (28 km/h)65 ft. (20 m)
Slow5 mph (8 km/h)18 ft. (5.5 m)

2964-5. Using the driving support systems
C-HR_OM_USA_OM10684U
■The RCTA function is operational when
The RCTA function operates when all of the following conditions are met:
● The RCTA system is set to on. ( P. 293)
● The shift position is in R.
● Vehicle speed is less than approximately 5 mph (8 km/h).
● Approaching vehicle speed is between approximately 5 mph (8 km/ h) and
18 mph (28 km/h).
■ Adjusting the buzzer volume
The buzzer volume can be adjusted on the multi-information disp lay.
Use the meter control switches to change settings. ( P. 100)
Press “ ” or “ ” to select .
Press “ ” or “ ” to select “Vehicle Settings”, and then press .
Press “ ” or “ ” to select , select the volume and then press
.
Each time the switch is pressed, the volume level will change between 1, 2
and
3.
■ Muting a buzzer
A mute button will be displayed on the multi-information displa y when an
object is detected. To mute the buzzer, press .
Mute will be canceled automatically in the following situations :
● When the shift lever is changed.
● When the vehicle speed exceeds a certain speed.
● When the operating function is temporarily canceled.
● When the operating function is disabled manually.
● When the engine switch is turned off.
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3526-2. Maintenance
C-HR_OM_USA_OM10684U
Head restraints• Do the head restraints move smoothly andlock securely?
Indicators/buzzers• Do the indicators and buzzers function prop-erly?
Lights • Do all of the lights come on?
Parking brake
• Does the parking brake switch operate nor-
mally?
• When parked on a slope and the parking brake is on, is the vehicle securely stopped?
Seat belts• Do the seat belts operate smoothly?
• The seat belts should not be damaged.
Seats• Do the seat controls operate properly?
Steering wheel
• Does the steering wheel rotate smoothly?
• Does the steering wheel have the correctamount of free play?
• There should not be any strange sounds com- ing from the steering wheel.
ItemsCheck points