2012 Lexus HS 250h Owners Manual - Page 248
2012 Lexus HS 250h Manual
Page 248 highlights
2-4. Using other driving systems ● Pre-collision alert braking (vehicle with driver monitor system): The pre-collision braking off switch is not pressed. The system determines that the driver is not facing forward. Vehicle speed is greater than 10 mph (15 km/h). The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than 25 mph (40 km/h).
248
2-4. Using other driving systems
●
Pre-collision alert braking (vehicle with driver monitor system):
°
The pre-collision braking off switch is not pressed.
°
The system determines that the driver is not facing forward.
°
Vehicle speed is greater than 10 mph (15 km/h).
° The speed at which your vehicle is approaching the obstacle or the vehicle
running ahead of you is greater than 25 mph (40 km/h).
■
Conditions that may trigger the system even if there is no possibility of a collision
●
When there is an object by the roadside at the entrance to a curve
●
When passing an oncoming vehicle on a curve
●
When driving over a narrow iron bridge
●
When there is a metal object on the road surface
●
When driving on an uneven road surface (nose up, nose down)
●
When passing an oncoming vehicle on a left-turn
●
When your vehicle rapidly closes on the vehicle in front
●
When a grade separation/interchange, sign, billboard, or other structure
appears to be directly in the vehicle’s line of travel
●
When climbing a steep hill causes an overhead billboard or other metallic struc-
ture to appear directly in the vehicle’s line of travel
●
When a railing, bar, or similar object can be seen in front of the vehicle
●
When the radar sensor is out of alignment (
→
P. 252)
●
When passing through an overpass
When the system is activated in the situations described above, there is also a possi-
bility that the seat belts will retract quickly and the brakes will be applied with a force
greater than normal. When the seat belt is locked in the retracted position, stop the
vehicle in a safe place, release the seat belt and refasten it.