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258
4-5. Using the driving support systems
by using the paddle shift switch.
●
Vehicle speed is at or above approxi-
mately 30 mph (50 km/h).
However, when a preceding vehicle is
detected, the dynamic radar cruise con-
trol with full-speed range can be set even
if the vehicle speed is below approxi-
mately 30 mph (50 km/h).
Accelerating after setting the vehicle
■
speed
The vehicle can accelerate by operating the
accelerator pedal. After accelerating, the
set speed resumes. However, during vehi-
cle-to-vehicle distance control mode, the
vehicle speed may decrease below the set
speed in order to maintain the distance to
the preceding vehicle.
When the vehicle stops while follow-up
■
cruising
Pressing the "+RES" switch while the
●
vehicle ahead stops will resume follow-up
cruising if the vehicle ahead starts off
within approximately 3 seconds after the
switch is pressed.
●
If the vehicle ahead starts off within 3 sec-
onds after your vehicle stops, follow-up
cruising will be resumed.
Automatic cancelation of vehi-
■
cle-to-vehicle distance control mode
Vehicle-to-vehicle distance control mode is
automatically canceled in the following situ-
ations.
Actual vehicle speed falls at or below
●
approximately 25 mph (40 km/h) when
there are no vehicles ahead.
●
The preceding vehicle leaves the lane
when your vehicle is following at a vehicle
speed at or below approximately 25 mph
(40 km/h). Otherwise, the sensor cannot
properly detect the vehicle. ("CRUISE
NOT AVAILABLE No Preceding Vehi-
cles" is displayed on the multi-information
display.)
●
VSC is activated.
TRAC is activated for a period of time.
●
●
When the VSC or TRAC system is
turned off.
When snow mode is set.
●
LS500h_OM_OM50F42U_(U)
The sensor cannot detect correctly
●
because it is covered in some way.
●
Pre-collision braking is activated.
The parking brake is operated.
●
The vehicle is stopped by system control
●
on a steep incline.
●
The following are detected when the
vehicle has been stopped by system con-
trol:
• The driver is not wearing a seat belt.
• The driver's door is opened.
• The vehicle has been stopped for about 3
minutes.
If vehicle-to-vehicle distance control mode
is automatically canceled for any other rea-
son, there may be a malfunction in the sys-
tem. Contact your Lexus dealer.
■
Automatic cancelation of constant
speed control mode
Constant speed control mode is automati-
cally canceled in the following situations:
●
Actual vehicle speed is more than
approximately 10 mph (16 km/h) below
the set vehicle speed.
●
Actual vehicle speed falls below approxi-
mately 25 mph (40 km/h).
VSC is activated.
●
●
TRAC is activated for a period of time.
When the VSC or TRAC system is
●
turned off.
●
Pre-collision braking is activated.
If constant speed control mode is automati-
cally canceled for any other reason, there
may be a malfunction in the system. Con-
tact your Lexus dealer.
If "Radar Cruise Control Unavailable" is
■
shown on the multi-information display
The radar cruise control system cannot be
used temporarily. Use the system when it
becomes available again.
Brake system operation sound
■
When the brakes are operated in vehi-
cle-to-vehicle distance mode, a brake oper-
ating sound may be heard. This is not a
malfunction.
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