Lexus RC 350 AWD 2019 Owner's Manual page 175

may be a malfunction in the system. Con-
tact your Lexus dealer.
Brake system operation sound
■
If the brakes are applied automatically while
the vehicle is in vehicle-to-vehicle distance
control mode, a brake system operation
sound may be heard. This does not indicate
a malfunction.
Warning messages and buzzers for
■
dynamic radar cruise control
Warning messages and buzzers are used to
indicate a system malfunction or to inform
the driver of the need for caution while driv-
ing. If a warning message is shown on the
multi-information display, read the message
and follow the instructions.
When the sensor may not be correctly
■
detecting the vehicle ahead
In the case of the following and depending
on the conditions, operate the brake pedal
when deceleration of the system is insuffi-
cient or operate the accelerator pedal
when acceleration is required.
As the sensor may not be able to correctly
detect these types of vehicles, the approach
warning (P.173) 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 detect-
ing of the sensor
● When your vehicle is pointing upwards
(caused by a heavy load in the luggage
compartment, etc.)
RC350AWD_RC350_RC300AWD_RC30
0_OM_(U)_1810
4-5. Using the driving support systems
Conditions under which the vehi-
■
cle-to-vehicle distance control mode
may not function correctly
In the case of the following conditions,
operate the brake pedal (or accelerator
pedal, depending on the situation) as nec-
essary.
As the sensor may not be able to correctly
detect vehicles ahead, the system may not
operate properly.
● When the road curves or when the lanes
are narrow
When the vehicle ahead of you deceler-
●
ates suddenly
● When driving on a road surrounded by a
structure, such as in a tunnel or on a
bridge
● When the vehicle speed is decreasing to
the set speed after the vehicle acceler-
ates by depressing the accelerator pedal
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