Lexus RX 450h Owner's Manual page 336

334 4-5. Using the driving support systems
desired direction.
The set speed will be increased or
decreased as follows:
Fine adjustment: By approximately 1 km/h
(0.6 mph) each time the lever is operated
Large adjustment: The set speed can be
increased or decreased continually until
the lever is released.
Canceling and resuming the
constant speed control
1 Pulling the lever toward you can-
cels the constant speed control.
The speed setting is also canceled when
the brake pedal is depressed.
2 Pushing the lever up resumes the
constant speed control.
However, resuming is available when the
vehicle speed is more than approximately
30 km/h (20 mph).
Cruise control can be set when
■
The shift lever is in D.
●
Vehicle speed is above approximately 30
●
km/h (20 mph).
Accelerating after setting the vehicle
■
speed
The vehicle can be accelerated by oper-
●
ating accelerator pedal. After accelerat-
ing, the set speed resumes.
� � � � � � � � � � � � � � � � �
Even without canceling the cruise con-
●
trol, the set speed can be increased by
first accelerating the vehicle to the
desired speed and then pushing the lever
down to set the new speed.
Automatic cancelation of cruise control
■
Cruise control is automatically canceled in
any of the following situations.
Actual vehicle speed falls more than
●
approximately 16 km/h (10 mph) below
the set speed.
Actual vehicle speed is below approxi-
●
mately 30 km/h (20 mph).
VSC is activated.
●
TRC is activated for a period of time.
●
When the VSC or TRC system is turned
●
off by pressing the VSC OFF switch.
If "Cruise Control Malfunction Visit
■
Your Dealer" is displayed on the
multi-information display
Press the "ON/OFF" button once to deacti-
vate the system, and then press the button
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.
WARNING
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 con-
■
trol
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
●