Lexus LS 600h L 2012 Owner's Manual page 321

2-4. Using other driving systems
Driver monitor sensor (with driver monitor system)
Obstacles not detected
■
The sensor cannot detect plastic obstacles such as pylons. There may also be occa-
sions when the radar sensor cannot detect pedestrians, animals, bicycles, motorcy-
cles, trees, or snowdrifts.
A camera sensor cannot detect obstacles in the following situations:
■
A camera sensor is directly receiving intense light, such as sunlight.
●
Visibility is poor because of bad weather or other reasons.
●
The sensor temperature is extremely high.
●
The pre-collision system is operational when
■
Pre-collision seat belts:
●
Operating conditions A
• Vehicle speed is above 4 mph (5 km/h).
• The relative speed difference between your vehicle and another vehicle that
is forward of your vehicle, or the speed at which your vehicle is approaching
an obstacle is greater than 19 mph (30 km/h).
• The front occupants are wearing a seat belt.
Operating conditions B
• Vehicle speed exceeds 19 mph (30 km/h).
• The system detects sudden braking or skidding.
• The front occupants are wearing a seat belt.
318
Detects the direction the driver is
facing. The system determines
whether the driver is facing for-
ward.