height adjustment Lexus GX460 2019 Owner's Manual / LEXUS 2019 GX460 OWNER'S MANUAL (OM60Q84U)

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GX460_OM_OM60Q84U_(U)3-3. Adjusting the seats
Front seats
Seat position adjustment switch
Seatback angle adjustment switch
Seat cushion (front) an
gle adjustment switch
Vertical height adjustment switch
Lumber support adjustment switch
When the occupant’s lower back
presses against the seatback during a
rear-end collision, the head restraint
moves slightly forward and upward to
help reduce the risk of whiplash on the
seat occupant.
Adjustment procedure
Active head restraints
1
2
3
4
5

GX460_OM_OM60Q84U_(U)
3754-5. Using the driving support systems
4
Driving
■The pre-collision system is operational when
●Pre-collision seat belts (situation 1):
• Vehicle speed is greater than about 4 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 19 mph (30 km/h).
• The front occupants are wearing a seat belt.
●Pre-collision seat belts (situation 2):
• Vehicle speed is greater th an about 19 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 greater th an about 19 mph (30 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 19 mph (30 km/h).
• The brake pedal is depressed.
●Pre-collision braking:
• The pre-collision braking off switch is not pressed.
• Vehicle speed is greater th an about 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 about 10 mph (15 km/h).
●AVS (Adaptive Variable Suspension System) control (if equipped):
• Vehicle speed is greater than about 4 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle running ahead of you is greater than about 19 mph (30 km/h).
●Pre-collision alert braking (vehic les with driver monitor system):
• The system determines that the driver is not facing forward.
• The speed at which your vehicle is appr oaching the vehicle running ahead of you is
greater than about 25 mph (40 km/h).
• Vehicle speed is greater th an about 25 mph (40 km/h).
• The pre-collision braking off switch is not pressed.
• The steering is not being turned.
■Situations in which the pre-collision system does not function properly
The system may not function effectively in situations such as the following:
●On roads with sharp bends or uneven surfaces
●If a vehicle suddenly moves in front of yo ur vehicle, such as at an intersection
●If a vehicle suddenly cuts in front of your vehicle, such as when overtaking
●In inclement weather such as heavy rain, fog, snow or sand storms
●When your vehicle is skidding with the VSC system off
●When an extreme change in vehicle height occurs
●When the axis of the radar is out of adjustment