2023 TOYOTA RAIZE Brake

2234-5. Using the driving support systems
RAIZE_OM_General_BZ358E
Driving
4
Sonar’s obstacle recognition range
The recognition areas are shown in
the right figure.
However, if the obstacle is too close
to the sonar, the recognition fails.
Depending on the obstacles’ shape
and conditions, the recognition
range may become shorter, or the
recognition may fail.
⬛Operating conditions
⚫Front corner sensors:
⦁When the engine switch is “ON”
⦁ When the front corner sensors/reverse sensors switch is ON
⦁ When the shift lever is set in other than P, and the vehicle speed is approx.
10 km/h or less
⚫Reverse sensors:
⦁When the engine switch is “ON”
⦁ Vehicles with front corner sensors:
When the front corner sensors/reverse sensors switch is ON
⦁ When the shift lever is set in R, and the vehicle speed is approx. 10 km/h or
less
⚫When an obstacle is recognized with all the activation conditions satisfied
and the parking brake not being applied, the buzzer will sound.
⬛Sonar recognition capabilities
⚫The sonar recognition range is limited to the area around the sonar on the
front side of the vehicle and th e rear bumper of the vehicle.
⚫It takes some time from when the sonar recognizes an obstacle until the
front corner sensors or reverse sensors become activated. If the vehicle gets
too close to the obstacle before the buzzers sounds, the buzzer may not
sound even when the vehicle is traveling at a slow speed.
⚫While the audio or air conditioning system is turned on, the music or fan
noise makes the buzzer sound difficult to hear.
KBRO451004E
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2244-5. Using the driving support systems
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⬛When the high-pitch short beeps sound 3 times repeatedly and the front
corner sensor or reverse sensor ON indicator appears at 2 front locations
or 2 rear locations (or all 4 locations) simultaneously
⚫The front corner sensor or reverse se nsor functionality has been degraded.
When the front corner sensor or re verse sensor functionality temporarily
turns off, check if the sonar is not cove red with rain, snow, ice, or dirt. Remove
those attached to it, then wait for the f unctionality to be restored to normal.
⚫If the master warning light turns on at this time, it may indicate a malfunc-
tion of the system. Have the vehicle inspected at your Toyota dealer.
⚫Vehicles with TFT color multi-informati on display: Depending on the condi-
tions, the warning messages as “Son ar Sensor Function Stop” and “Sonar
Sensor Malfunction Visit Your Dealer” will be displayed.
⬛Front corner sensors and reverse sensors
In the following cases, the system ma y become activated even when there is
no obstacle within the operating range.
⚫When driving an area where the road slopes suddenly change
⚫When passing through plastic curtains or driving under flags
⚫When water splashes or drifting snow whirls up
⚫When passing an obstacle at close range
⚫When using an elevator for automobiles or using a mechanical parking lot
⚫When driving over a bump with an obstacle near the vehicle
⚫When there is an obstacle near the side of the vehicle
⚫When the road surface has large bumps, curbstones or protrusions, or when
the ground surface has tire tracks and holes
⚫When entering into a tight space
⚫During pouring rain or when water splashes over the vehicle
⚫Bad weather (heavy rain, snowstorm, fog, etc.)
⚫When the following is present near the vehicle: the sound of other vehicles’
horns, motorcycle engines, and air brakes of large vehicles, the devices emitting
ultrasonic waves, such as vehicle detect ors, or sonar systems of other vehicles
⚫When commercially available electrical components (such as an internally illu-
minated number plate, radio antenna) are installed near the sonar sensors
⚫When the vehicle body has been considerably tilted
⚫When the vehicle height has significantly changed by the load conditions, etc.
⚫When the direction of the sonar sensors is deviated by a collision or other
causes
⚫When the sonar sensors are covere d with rain, snow, ice or dirt
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2254-5. Using the driving support systems
RAIZE_OM_General_BZ358E
Driving
4
WARNING
⬛Before using the front corner sensors or reverse sensors
Make sure to observe the following precautions.
Failure to do so is dangerous, as it may lead to an unforeseen accident.
⚫Do not let the vehicle speed exceed approx. 10 km/h (6 mph).
⚫There is a limit to the sonar’s recognition range and activation speed. When
you move your vehicle forward or backward, make sure to check the safety
around the vehicle, which is outside the sonar’s recognition range (especially
the sides of the vehicle), use the brak e pedal to control the speed adequately
and drive slowly.
⚫Do not paste stickers or install accesso ries on the sonar sensors or their sur-
rounding areas.
⚫Vehicles with TFT color multi-informa tion display: If the warning message
“Sonar Sensor Function Stop” appears, check the sonar conditions. If the
warning message appears even when the sonar is not covered with rain,
snow, ice, or dirt, it could be due to a malfunction of the front corner sensors
or reverse sensors. Have the vehicl e inspected at your Toyota dealer.
⬛Front corner sensors and reverse sensors
In the following situations, the front corner sensors or reverse sensors may
not work normally and could lead to an unforeseen accident. Make sure to
drive carefully.
⚫Road conditions (slopes, unevenness, etc.)
⚫Vehicle’s maintenance conditions (brake-r elated issues, worn out tires, infla-
tion pressure, driving on a spare tire, etc.)
⚫Bad weather (heavy rain, snowstorm, fog, etc.)
⚫When the vehicle is signif icantly tilted by carrying a heavy load or being on
the surface with different height, or when the vehicle height has significantly
changed
⚫Distance from the obstacle, orientatio n or position (the obstacle is located
near the center of the vehicle)
⚫When driving on a steep slope
⚫When the sonar system cannot recognize the obstacle correctly (the follow-
ing cases in particular)
⦁ When an obstacle is extremely clos e to the sonar (when approaching too
close to the obstacle, the buzzer may change from continuous sound to
intermittent sound)
⦁ When an obstacle is located at a high position from the ground
⦁ Short obstacles
⦁ Small obstacles (such as small animals and infants), narrow obstacles
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2264-5. Using the driving support systems
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WARNING
⦁Moving objects (those appearing sudd enly or traveling across the vehicle)
⦁ Sponge-like items or obstacles with soft surfaces such as snow, which are
likely to absorb sound waves
⦁ When the obstacle’s surface is diagonal to the vehicle
⦁ A wall that is not perpendicular to the ground
⦁ Non-planar walls, such as those with uneven or wavy surface
⦁ Thin obstacles such as wires, wire mesh , ropes, road signs, utility poles and
other poles
⦁ When pillars or pipes are sticking out from the wall
⦁ When an unrecognizable obstacle is located between a recognizable
obstacle and the vehicle
⦁ Obstacles located outside of the sonar’s recognition range
⦁ When the sonar sensor areas are extremely hot under the blazing sun or
extremely cold during winter
⦁ When the sonar sensors are covere d with rain, snow, ice or dirt
⦁ During pouring rain or when water splashes over the vehicle, or strong
wind blowing
⦁ When there is a loud noise around, or there are devices emitting ultra-
sonic waves (the sound of other vehicles’ horns, motorcycle engines, and
air brakes of large vehicles, vehicle detectors, or sonar systems of other
vehicles)
⦁ When commercially availa ble electrical components (such as an internally
illuminated number plate, radio anten na) are installed near the sonar sen-
sors
⦁ When the direction of the sonar sensors is deviated by a collision or other
causes
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2324-5. Using the driving support systems
RAIZE_OM_General_BZ358E
Driving assist systems
The following devices automatically operate according to the driving
conditions to improve driving safety and performance. However,
these systems are supplementary and you should be careful not to
over-rely on them while driving.
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface.
◆Brake assist
Generates an increased level of braking force when the system detects a
panic stop situation.
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on
slippery road surfaces.
◆TRC (Traction Control)
Helps to maintain drive power and pr event the drive wheels from spinning
when starting the vehicle or accelerating on slippery roads.
◆Hill-start assist control
Prevents the vehicle from moving backwards when starting on an uphill.
◆EPS (Electric Power Steering)
Uses an electric motor to assist steering operation.
◆Emergency brake signal
Emergency flashers automatically fl ash when braking suddenly, alerting
the following vehicle and reducing the possibility of a collision.
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2344-5. Using the driving support systems
RAIZE_OM_General_BZ358E
⬛Activation of ABS/VSC
ABS/VSC does not work at low speeds. The operation is the same as the nor-
mal brake.
⬛Activation sound and vibration of the ABS, brake assist, VSC, TRC, and hill-
start assist control
⚫A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the engine is started or just 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 systems are oper-
ating. None of them indicates that a malfunction has occurred.
⦁ Vibrations may be felt through th e vehicle body and steering wheel
⦁ A motor sound may be heard even after the vehicle has come 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 activated
⬛EPS motor operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard, but this does not indicate a malfunction.
⬛Automatic reactivation of VSC and TRC
After turning the TRC and VSC systems off, the systems will return to the ready
state in the following situations:
⚫When the engine switch is turned to “OFF”
⚫If only the TRC system is turned off, when vehicle speed increases
If both the TRC and VSC systems are tu rned off, automatic reactivation will
not occur when vehicle speed increases.
⬛Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel ma y feel heavy as a result.
Should this occur, refrain from excessive steering input or stop the vehicle and
turn the engine off. It should re turn to normal within 10 minutes.
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2354-5. Using the driving support systems
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Driving
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⬛Activation conditions of the hill-start assist control
The system operates when all of the following conditions are met:
⚫Continuously variable transmission vehi cles: The shift lever is set to other
than P or N (when starting to move the vehicle forward or backward on an
uphill)
⚫Manual transmission vehicles: The shift lever is set to other than R when
starting to move the vehicle forward on an uphill or the shift lever is set to R
when starting to move the vehicle backward on an uphill
⚫Vehicle stopped state
⚫Not depressing the accelerator
⚫Parking brake is not applied
⬛Automatic deactivation of the hill-start assist control
The system is deactivated when one of the following occurs:
⚫Continuously variable transmission vehicl es: The shift lever is set to P or N
⚫Manual transmission vehicles: The shift lever is set to R when starting to
move the vehicle forward on an uphill or the shift lever is set to other than R
when starting to move the vehicle backward on an uphill
⚫The driver depresses the accelerator
⚫The driver applies the parking brake
⚫About 2 seconds have passed since releasing the brake pedal
⬛When the slip indicator turns on and the warning message ( ➞P. 389)
appears
It may indicate a malfunction in the systems. Contact your Toyota dealer.
⬛Activation conditions of the emergency brake signal
The system operates when all of the following conditions are met:
⚫The emergency flashers are not flashing
⚫The vehicle speed is 60 km/h (38 mph) or more
⚫The brake pedal is depressed and the vehicle is deemed to brake suddenly
based on the deceleration, or ABS is activated
⬛Automatic deactivation of the emergency brake signal
The system is deactivated when one of the following occurs:
⚫The emergency flashers were set to flashing
⚫The brake pedal was released
⚫It was determined that the vehicle did not brake suddenly based on the
deceleration
⚫ABS stopped working
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2364-5. Using the driving support systems
RAIZE_OM_General_BZ358E
WARNING
⬛The ABS does not operate effectively when
⚫Do not overly rely on the ABS.
The limits of tire gripping performance have been exceeded (such as exces-
sively 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 normal
conditions
The ABS is not designed to shorten th e vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you, especially in the fol-
lowing situations:
⚫When driving on dirt, grav el or snow-covered roads
⚫When driving with tire chains
⚫When driving over bumps in the road
⚫When driving over roads with potholes or roads with uneven surfaces
⬛TRC/VSC may not operate effectively when
⚫Do not overly rely on the TRC/VSC.
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRC/VSC system is operating.
Drive the vehicle carefully in condit ions where stability and power may be
lost.
⚫The VSC and TRC may not function proper ly when tire chains are installed.
⬛Hill-start assist control does not operate effectively when
⚫Do not overly rely on hill-start assist control. Hill-start assist control may not
operate effectively on steep inclines an d dirt, gravel or snow-covered roads.
⚫Unlike the parking brake, hill-start assist control is not intended 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.
⚫The hill-start assist control may no t become activated depending on the
number of occupants or luggage weight in the vehicle, or if the driver did not
step on the brake pedal strong enough when stopping.
⬛When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.
⬛When the ABS warning light or slip indicator is on
The emergency brake signal ( ➞P. 232) may not be activated.
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