Toyota Highlander (2018 year). Manual - part 79

328

4-5. Using the driving support systems

• Immediately after the RCTA function is turned on
• Immediately after the engine is started with the RCTA function on

• When backing up on a slope with a

sharp change in grade

• When backing out of a shallow angle

parking spot

• When the sensors cannot detect a

vehicle due to obstructions

329

4-5. Using the driving support systems

4

Drivin

g

●

Instances of the RCTA function unnecessarily detecting a vehicle and/or
object may increase in the following situations:

• When a vehicle passes by the side of your vehicle

• 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

• When the parking space faces a

street and vehicles are being driven
on the street

330

4-5. Using the driving support systems

Press the switch.

The torque of the engine is distrib-
uted to the rear wheels to the max-
imum extent possible in
accordance with driving conditions.

Pressing the switch again cancels
all-wheel drive lock mode and
returns the Dynamic Torque Con-
trol AWD system to normal mode.
(

→P. 332)

■

All-wheel drive lock mode can be operated when



Vehicles without a smart key system

The engine switch is in the “ON” position.



Vehicles with a smart key system

The engine switch is in IGNITION ON mode.

■

All-wheel drive lock mode

●

All-wheel drive lock mode is canceled when the brakes are applied to
ensure the ABS and VSC systems operate effectively.

●

All-wheel drive lock mode is canceled when the vehicle speed exceeds 25
mph (40 km/h).

All-wheel drive lock switch (AWD models)

All-wheel drive lock mode can be used when a large amount of
drive power needs to be applied to all the wheels, such as when
the vehicle gets stuck in mud and you need to free it.

331

4-5. Using the driving support systems

4

Drivin

g

◆

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 after the brake pedal
is depressed 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

◆

Enhanced VSC (Enhanced Vehicle Stability Control)

Provides cooperative control of the ABS, TRAC, VSC and EPS. 
Helps to maintain directional stability when swerving on slippery
road surfaces by controlling steering performance.

◆

Trailer Sway Control

Helps the driver to control trailer sway by selectively applying brake
pressure for individual wheels and reducing driving torque when
trailer sway is detected.

◆

TRAC (Traction Control)

Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicle or accelerating on slippery roads

◆

Hill-start assist control

Helps to reduce the backward movement of the vehicle when start-
ing on an uphill

Driving assist systems

To help enhance driving safety and performance, the following
systems operate automatically in response to various driving
situations. Be aware, however, that these systems are supple-
mentary and should not be relied upon too heavily when operat-
ing the vehicle.