Lexus GS 450h2011 Manual page 222

2-4. Using other driving systems
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.
The pre-collision system is operational when
■
Pre-collision seat belts (linked to the radar sensor)
●
• Vehicle speed is above 3 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or oncoming
vehicle exceeds 18 mph (30 km/h).
• The front occupants are wearing a seat belt.
Pre-collision seat belts (linked to brake operation)
●
• Vehicle speed exceeds 18 mph (30 km/h).
• The system detects sudden braking or skidding.
• The front occupants are wearing a seat belt.
Pre-collision brake assist
●
• Vehicle speed is above 18 mph (30 km/h).
• The speed at which your vehicle is approaching the obstacle or oncoming
vehicle exceeds 18 mph (30 km/h).
• The brake pedal is depressed.
Pre-collision braking
●
• The pre-collision braking off button is not pressed.
• Vehicle speed is greater than about 9 mph (15 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle
running ahead of you is greater than about 9 mph (15 km/h).
AVS
●
• Vehicle speed is above 3 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or oncoming
vehicle exceeds 18 mph (30 km/h).
222
GS_HV_U (OM30C14U)
May 21, 2010 2:41 pm