Lexus RC350 Owner's Manual page 255

Operational conditions
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The pre-collision system is enabled and the system determines that the possibility of a
frontal collision with a vehicle or pedestrian is high.
Each function is operational at the following speeds:
Pre-collision warning:
●
• Vehicle speed is between approximately 7 and 110 mph (10 and 180 km/h). (For
detecting a pedestrian, vehicle speed is between approximately 7 and 50 mph [10
and 80 km/h].)
• The relative speed between your vehicle and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more.
Pre-collision brake assist:
●
• Vehicle speed is between approximately 20 and 110 mph (30 and 180 km/h). (For
detecting a pedestrian, vehicle speed is between approximately 20 and 50 mph
[30 and 80 km/h].)
• The relative speed between your vehicle and the vehicle or pedestrian ahead is
approximately 20 mph (30 km/h) or more.
Pre-collision braking:
●
• Vehicle speed is between approximately 7 and 110 mph (10 and 180 km/h). (For
detecting a pedestrian, vehicle speed is between approximately 7 and 50 mph [10
and 80 km/h].)
• The relative speed between your vehicle and the vehicle or pedestrian ahead is
approximately 7 mph (10 km/h) or more.
The system may not operate in the following situations:
If a battery terminal has been disconnected and reconnected and then the vehicle has
●
not been driven for a certain amount of time
If the shift lever is in R
●
If VSC is disabled (only the pre-collision warning function will be operational)
●
Pedestrian detection function
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The pre-collision system detects pedestrians
based on the size, profile, and motion of a
detected object. However, a pedestrian may not
be detected depending on the surrounding
brightness and the motion, posture, and angle of
the detected object, preventing the system from
operating properly. (P. 259)
Cancelation of the pre-collision braking
■
If either of the following occur while the pre-collision braking function is operating, it will
be canceled:
The accelerator pedal is depressed strongly.
●
The steering wheel is turned sharply or abruptly.
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RC350_RC300 AWD_RC300_RC F_U(OM24748U)
4-5. Using the driving support systems
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