Lexus RX400h2006, Owner'S Manual

Page: 452 / 639

STARTING AND DRIVING
425
If a vehicle is detected ahead of you —
2 Deceleration cruising function: If a slower moving
vehicle is detected ahead of you, your vehicle cruising
speed decreases within the range of about 40 km/h (25
mph) to 135 km/h (85 mph). The display shows the preset
speed, the detected vehicle ahead and the selected
vehicle
−
to
−
vehicle distance. If your vehicle gets closer to
the vehicle ahead because of insufficient automatic
deceleration, an alarm warns you to manually apply
brakes.
3 Follow−up cruising function: After deceleration, your
cruising speed changes to match the speed of the vehicle
ahead in order to maintain a constant vehicle
−
to
−
vehicle
distance. The vehicle
−
to
−
vehicle distance can be
changed. For details, see “(h) Changing
vehicle
−
to
−
vehicle distance” on page 432.
4 Acceleration cruising function: If the vehicle ahead
changes lanes, your vehicle cruising speed will be
gradually increased up to the preset speed, and your
vehicle resumes fixed
−
speed cruising.
This system operates by detecting primarily the reflectors
of the vehicle ahead. The distance may not be accurately
or absolutely detected in the following cases:
The vehicle ahead has higher ground clearance, which
means that the placement of the reflectors is in a higher
position.
The rear section of the vehicle ahead is extremely dirty.
The vehicle ahead or other vehicles around you are
flinging up water or snow.
Excessive exhaust gas (black smoke) is coming from
the vehicle ahead or other vehicles around you,
obscuring your front view.
There is an obstruction (protective film, sticker, etc.) on
the reflectors on the vehicle ahead, or reflectors are not
installed on the vehicle ahead or are damaged.
Heavy luggage in the luggage compartment or rear
seats is causing the nose of your vehicle to tilt up.