2023 TOYOTA 4RUNNER Owners Manual

2894-5. Using the driving support systems
4
Driving
4RUNNER (U)■
RCTA function detection areas
The areas that vehicles can be detected in are outlined below.
The buzzer can alert the driver of faster vehicles approaching from
farther away.
Example:
Approaching vehicleSpeed Approximate alert distance
Fast35 mph (56 km/h)130 ft (40 m)
Slow5 mph (8 km/h)18 ft (5.5 m)
WARNING
■ Cautions regarding the use of the system
There is a limit to the degree of recognition accuracy and cont rol perfor-
mance that this system can provide, do not overly rely on this system. The
driver is always responsible for paying attention to the vehicl e’s surround-
ings and driving safely. ( P. 274)
■ To ensure the system can operate properly
 P. 272
1

2904-5. Using the driving support systems
4RUNNER (U)
■The RCTA function is operational when
The RCTA function operates when all of the following conditions are met:
● The engine switch is in the IGNITION ON mode.
● The RCTA function is on.
● The shift lever is in R.
● The vehicle speed is less than approximately 9 mph (15 km/h).
● The approaching vehicle speed is between approximately 5 mph (8 km/h)
and 35 mph (56 km/h).
■ Muting a buzzer temporarily
A mute button will be displayed on the multi-information displa y when a vehi-
cle or an object is detected. To mute the buzzer, press. The bu zzers for the
RCTA function and Toyota parking assist-sensor will be muted si multane-
ously.
Mute will be automatically canceled in the following situations :
● When the shift position is changed.
● When there is a malfunction in a sensor or the system is temporarily
unavailable.
● When the function is disabled while it is operating.
● The engine switch is turned off.
■ Conditions under which the system will not detect a vehicle
The RCTA function is not designed to detect the following types of vehicles
and/or objects:
● Vehicles approaching from directly behind
● Vehicles backing up in a parking space next to your vehicle
● Guardrails, walls, signs, parked vehicles and similar stationar y objects
*
●Small motorcycles, bicycles, pedestrians, etc.*
●Vehicles moving away from your vehicle
● Vehicles approaching from the parking spaces next to your vehic le
*
●The distance between the sensor and approaching vehicle gets to o close
*: Depending on the conditions, detection of a vehicle and/or obj ect may
occur.
●
Vehicles that the sensors cannot detect
due to obstructions

2914-5. Using the driving support systems
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Driving
4RUNNER (U)■
Situations in which the syst em may not operate properly
The RCTA function may not detect vehicles correctly in the foll owing situa-
tions:
● When the sensor is misaligned due to a strong impact to the sensor or its
surrounding area
● When mud, snow, ice, a sticker, etc., is covering the sensor or surrounding
area on the rear bumper
● When driving on a road surface that is wet with standing water during bad
weather, such as heavy rain, snow, or fog
● When multiple vehicles are approaching with only a small gap be tween
each vehicle
● When a vehicle is approaching at high speed
● When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an additional trim strip, etc.), bicy cle carrier, or
snow plow
● When towing a trailer
● When there is a significant difference in height between your vehicle and the
vehicle that enters the detection area
● When a sensor or the area around a sensor is extremely hot or c old
● If the suspension has been modified or tires of a size other th an specified
are installed
● If the front of the vehicle is raised or lowered due to the car ried load
●
When backing up on a slope with a
sharp change in grade
● When backing out of a sharp angle park-
ing spot

2924-5. Using the driving support systems
4RUNNER (U)■
Situations in which the system may operate even if there is no possibil-
ity of a collision
Instances of the RCTA function unnecessarily detecting a vehicl e and/or
object may increase in the following situations:
● When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an additional trim strip, etc.), bicy cle carrier, or
snow plow
●
When turning while backing up
● When a vehicle turns into the detection
area
● When the parking space faces a street
and vehicles are being driven on the
street
● When the distance between your vehicle
and metal objects, such as a guardrail,
wall, sign, or parked vehicle, which may
reflect electrical waves toward the rear
of the vehicle, is short

2934-5. Using the driving support systems
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Driving
4RUNNER (U)●
When there are spinning objects near your vehicle such as the f an of an air
conditioning unit
● When water is splashed or sprayed toward the rear bumper, such as from a
sprinkler
● Moving objects (flags, exhaust fumes, large rain droplets or snowflakes, rain
water on the road surface, etc.)
● When the distance between your vehicle and a guardrail, wall, etc., that
enters the detection area is short
● Gratings and gutters
● When a sensor or the area around a sensor is extremely hot or c old
● If the suspension has been modified or tires of a size other th an specified
are installed
● If the front of the vehicle is raised or lowered due to the car ried load
●
When a vehicle passes by the side of
your vehicle
● When a detected vehicle turns while
approaching the vehicle

2944-5. Using the driving support systems
4RUNNER (U)
Ty p e A
The four-wheel drive indicator comes on when H4, N or L4 mode i s
selected.
H2 (high speed position, two-wheel drive)
Use this for normal driving on dry hard-surfaced roads. This po sition gives
greater economy, quietest ride and least wear.
H4 (high speed positi on, four-wheel drive)
Use this for driving only on tracks that permit the tires slide , like off-road,
icy or snow-covered roads. This position provides greater tract ion than
two-wheel drive.
N (neutral position)
No power is delivered to the wheels. The vehicle must be stoppe d.
L4 (low speed position, four-wheel drive)
Use this for maximum power and traction. Use “L4” for climbing or
descending steep hills, off-road driving, and hard pulling in s and, mud or
deep snow.
Four-wheel drive indicator
Low speed four-whe el drive indicator
Four-wheel drive system (par t-time 4WD
models)
Use the front-wheel drive control lever or switch to select the fol-
lowing transfer modes:
1
2
3
4
5
6

2954-5. Using the driving support systems
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Driving
4RUNNER (U)
Ty p e B
The four-wheel drive indicator comes on when H4 or L4 mode is
selected. H2 (high speed position, two-wheel drive)
Use this for normal driving on dry hard-surfaced roads. This po sition gives
greater economy, quietest ride and least wear.
H4 (high speed positi on, four-wheel drive)
Use this for driving only on tracks that permit the tires slide , like off-road,
icy or snow-covered roads. This position provides greater tract ion than
two-wheel drive.
L4 (low speed position, four-wheel drive)
Use this for maximum power and traction. Use “L4” for climbing or
descending steep hills, off-road driving, and hard pulling in s and, mud or
deep snow.
Four-wheel drive indicator
Low speed four-whe el drive indicator
1
2
3
4
5

2964-5. Using the driving support systems
4RUNNER (U)■
Shifting from H2 to H4
Ty p e A
Reduce vehicle sp
eed to less than 50 mph (80 km/h).
Shift the front-wheel drive control lever to H4.
Ty p e B
Reduce vehicle speed to less than 62 mph (100 km/h).
Push the “UNLOCK” button and turn the front-wheel drive control
switch to H4.
The four-wheel drive indicator will turn on.
■
Shifting from H4 to H2
Ty p e A
Shift the front-wheel drive control lever to H2.
Ty p e B
Push the “UNLOCK” button and turn the front-wheel drive control
switch to H2.
This can be done at any speed.
The four-wheel drive indicator will go off.
■
Shifting from H4 to L4 Stop the vehicle completely and continue to depress the brake
pedal.
Shift the shift lever to N.
Ty p e A
Shift the front-wheel dri ve control lever to L4.
Ty p e B
Push the “UNLOCK” button and then push and turn the front-
wheel drive control switch to L4.
The low speed four-wheel drive indicator will turn on.
Shifting between H2 and H4
Shifting between H4 and L4
1
2
1
2
1
2
3
3