Toyota Camry 2018 Owner's Manual page 288

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4-5. Using the driving support systems
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Automatic cancelation of constant speed control mode
Constant speed control mode is automatically canceled in the following situa-
tions:
●
Actual vehicle speed is more than approximately 10 mph (16 km/h) below
the set vehicle speed.
●
Actual vehicle speed falls below approximately 25 mph (40 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 other rea-
son, there may be a malfunction in the system. Contact your Toyota dealer.
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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 from
the engine compartment. This does not indicate a malfunction.
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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 driving. If a warning message
is shown on the multi-information display, read the message and follow the
instructions.