2010 Lexus HS250h Owner's Manual

199
2-3. Operating the lights and windshield wipers
2
When driving
HS250h_U_75033U(Canada)
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may overheat.
■When a nozzle becomes blocked
Do not try to clear it with a pin or other object. The nozzle will be damaged.
■To prevent 12-volt battery discharge
Do not leave the wipers on longer than necessary when the hybrid system is off.

200
2-3. Operating the lights and windshield wipers
HS250h_U_75033U(Canada)
Headlight cleaner switch∗
∗: If equipped
■The headlight cleaners can be operated when
The “POWER” switch is in ON mode and the headlight switch is turned on.
■Windshield washer linked operation
●When the windshield washer is operated with the “POWER” switch in ON
mode and the headlights on, the headlight cleaners will operate once.
(→ P. 1 9 5 )
●From the second time the windshield washer is operated, the headlight cleaner
will not operate in sync with the windshield washer.
(Turning the “POWER” switch to OFF or the low beam headlights off resets the
headlight cleaner synchronization mode.)
NOTICE
■When the washer fluid tank is empty
Do not press the switch continually as the washer fluid pump may overheat.
Washer fluid can be sprayed on the headlights.
Press the switch to clean the
headlights.

201
2
When driving
HS250h_U_75033U(Canada)
2-4. Using other driving systems
Cruise control∗∗
: If equipped
Use the cruise control to maintain a set speed without depressing the
accelerator pedal.
Indicators
Cruise control switch
■ Setting the vehicle speed
Press the “ON-OFF” button to
activate the cruise control.
Press the button again to deacti-
vate the cruise control.

202
2-4. Using other driving systems
HS250h_U_75033U(Canada)
Accelerate or decelerate to the
desired speed, and push the
lever down to set the speed.
“SET” indicator will come on.
■Adjusting the set speed
Increases the speed
Decreases the speed
Hold the lever until the desired
speed setting is obtained.
Fine adjustment of the set speed
can be made by lightly pushing
the lever up or down and releas-
ing it.
■Canceling and resuming the constant speed control
Pulling the lever toward you
cancels the constant speed
control.
The speed setting is also can-
celed when the brakes are
applied.
Pushing the lever up resumes
the constant speed control.

203
2-4. Using other driving systems
2
When driving
HS250h_U_75033U(Canada)
■Cruise control can be set when
●The shift position is in D.
●Vehicle speed is above approximately 25 mph (40 km/h).
■Accelerating
The vehicle can be accelerated normally. After acceleration, the set speed
resumes.
■Automatic cruise control cancellation
Cruise control will stop maintaining the vehicle speed in any of the following situa-
tions.
●Actual vehicle speed falls more than approximately 10 mph (16 km/h) below the
preset vehicle speed.
At this time, the memorized set speed is not retained.
●Actual vehicle speed is below approximately 25 mph (40km/h).
●VSC is activated.
■If the cruise control indicator light flashes
Press the “ON-OFF” button once to deactivate the system, and then press the but-
ton again to reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels immediately
after being activated, there may be a malfunction in the cruise control system. Have
the vehicle inspected by your Lexus dealer.

204
2-4. Using other driving systems
HS250h_U_75033U(Canada)
CAUTION
■To avoid operating the cruise control by mistake
Switch the cruise control off using the “ON-OFF” button when not in use.
■Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accident resulting in death
or serious injury.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●On steep hills
Vehicle speed may exceed the set speed when driving down a steep hill.

205
2-4. Using other driving systems
2
When driving
HS250h_U_75033U(Canada)
Dynamic radar cruise control∗∗
: If equipped
Dynamic radar cruise control supplem ents conventional cruise control
with a vehicle-to-vehicle distance control. In vehicle-to-vehicle distance
control mode, the vehicle automatically accelerates or decelerates in
order to maintain a set following distance from vehicles ahead.
Indicator (vehicle-to-vehi-
cle distance control mode)
Indicator (SET)
Indicator (constant speed
control mode)
Display
Vehicle-to-vehicle distance
button
Cruise control switch
■ Selecting cruise mode
Selecting vehicle-to-vehicle dis-
tance control mode:
Press the “ON-OFF” button to
activate the cruise control.
Press the button again to deacti-
vate the cruise control.

206
2-4. Using other driving systems
HS250h_U_75033U(Canada)
Selecting conventional con-
stant speed control mode: Press the “ON-OFF” button
to activate the cruise control.
Press the button again to deacti-
vate the cruise control.
Vehicle-to-vehicle distance con-
trol mode is always reset when
the “POWER” switch is turned
to ON mode.
Switch to constant speed
control mode.
(Push the lever forward and
hold for approximately one
second.)
Constant speed control mode
indicator will come on.
■Driving in the selected cruise control mode
Accelerate or decelerate to the
desired speed, and push the
lever down to set the speed.
“SET” indicator will come on.
Constant speed control
mode
Vehicle-to-vehicle distance
control mode