Toyota RAV 4 2019 Manual page 260

260
4-5. Using the driving support systems
■ Automatic cancelation of vehi-
cle-to-vehicle distance control
mode
Vehicle-to-vehicle distance control
mode is automatically canceled in
the following situations.
● VSC is activated.
● TRAC is activated for a period of
time.
● When the VSC or TRAC system is
turned off.
● The sensor cannot detect cor-
rectly because it is covered in
some way.
● Pre-collision braking is activated.
● The parking brake is operated.
● The vehicle is stopped by system
control on a steep incline.
● The following are detected when
the vehicle has been stopped by
system control:
• The driver is not wearing a seat
belt.
• The driver's door is opened.
• The vehicle has been stopped for
about 3 minutes
If vehicle-to-vehicle distance control
mode is automatically canceled for
any reasons other than the above,
there may be a malfunction in the
system. Contact your Toyota dealer.
■ Automatic cancelation of con-
stant speed control mode
Constant speed control mode is
automatically canceled in the follow-
ing situations:
● 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 rea-
sons 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 mal-
functions.
■ Warning messages and buzzers
for dynamic radar cruise con-
trol with full-speed range
Warning messages and buzzers are
used to indicate a system malfunc-
tion 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.228, 633)
When the sensor may not be
■
correctly detecting the vehicle
ahead
In the case of the following and
depending on the conditions, oper-
ate the brake pedal when decelera-
tion 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 of vehi-
cles, the approach warning
(P.258) 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.)