300
4-5. Using the driving support systems
●
TRAC is activated for a period of
time.
●
When the VSC or TRAC system is
turned off.
●
When the brake control or output
restriction control of a driving sup-
port system operates.
(For example: Pre-Collision System,
Drive-Start Control)
●
The parking brake is operated.
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.267, 475)
■
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.297) 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.)
●
Motorcycles traveling in the same
lane
●
When water or snow thrown up by
the surrounding vehicles hinders
the detecting of the sensor
●
When your vehicle is pointing
upwards (caused by a heavy load
in the luggage compartment, etc.)
●
Preceding vehicle has an
extremely high ground clearance
■
Conditions under which the
vehicle-to-vehicle distance con-
trol mode may not function cor-
rectly
In the case of the following condi-
tions, operate the brake pedal (or
accelerator pedal, depending on the
situation) as necessary.
As the sensor may not be able to