2814-5. Using the driving support systems
4
Driving
IS200t_EE(OM53D77E)
When your vehicle is too close to a
vehicle ahead, and sufficient automatic
deceleration via the cruise control is
not possible, the display will flash and
the buzzer will sound to alert the driver.
An example of this would be if another
driver cuts in front of you while you are
following a vehicle. Depress the brake
pedal to ensure an appropriate vehicle-
to-vehicle distance.
■Warnings may not occur when
In the following instances, warnings may not occur even when the vehicle-to-
vehicle distance is small.
●When the speed of the preceding vehicle matches or exceeds your vehicle
speed
●When the preceding vehicle is traveling at an extremely slow speed
●Immediately after the cruise control speed was set
●When depressing the accelerator pedal
Approach warning (vehicle-to-vehicle distance control mode)
2844-5. Using the driving support systems
IS200t_EE(OM53D77E)
■Automatic cancelation of constant speed control mode
Constant speed control mode is automatically canceled in the following situations:
●Actual vehicle speed is more than approximately 16 km/h (10 mph) below the set vehi-
cle speed.
●Actual vehicle speed falls below approximately 40 km/h (25 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.
●Pre-collision braking is activated.
If constant speed control mode is automatically canceled for any other reason, there may
be a malfunction in the system. Contact an y authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
■Warning messages and buzzers for dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for caution while driv ing. If a warning message is shown on the
multi-information display, read the message and follow the instructions.
■When the sensor may not be correctly detecting the vehicle ahead
In the case of the following and depending on the conditions, operate the brake pedal
when deceleration of the system is insufficient or operate the accelerator pedal when
acceleration is required.
As the sensor may not be able to correctly detect these types of vehicles, the approach
warning ( P. 281) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the same lane
●Vehicles with small rear ends (trailers with no load on board, etc.)
●Motorcycles travelin g in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the detecting of
the sensor
2884-5. Using the driving support systems
IS200t_EE(OM53D77E)
■Cruise control can be set when
●The shift lever is in D.
●Range 4 or higher of D has been selected by using the paddle shift.
●Vehicle speed is above approximately 40 km/h (25 mph).
■Accelerating after setting the vehicle speed
●The vehicle can be accelerated normally. After acceleration, the set speed resumes.
●Even without canceling the cruise control, the set speed can be increased by first accel-
erating the vehicle to the desired speed and then pushing the lever down to set the new
speed.
■Automatic cruise control cancelation
Cruise control will stop maintaining the vehicle speed in any of the following situations.
●Actual vehicle speed falls more than approx imately 16 km/h (10 mph) below the preset
vehicle speed.
At this time, the memorized set speed is not retained.
●Actual vehicle speed is below approximately 40 km/h (25 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 the warning message for the cruise contro l is shown on the multi-information display
Press the “ON/OFF” button once to deactivate 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 vehi-
cle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reli-
able repairer.
2954-5. Using the driving support systems
4
Driving
IS200t_EE(OM53D77E)
■If the windshield is fogged up while the engine is stopped by the Stop & Start system
Turn on. (The engine will start due to the automatic engine start function.):
P. 458
If the windshield fogs up frequently, press the Stop & Start cancel switch to disable the
system.
■If an odor comes from the air conditioning system while the engine is stopped by the
Stop & Start system
Press the Stop & Start cancel switch to deactivate the Stop & Start system.
■Air conditioning system operation while the engine is stopped by the Stop & Start sys-
tem
●If the air conditioning system is being us ed in automatic mode, the fan speed may be
reduced or the fan may be stopped while the engine is stopped by the Stop & Start sys-
tem in order to reduce changes in the cabin temperature.
●To ensure air conditioning system performanc e when the vehicle is stopped, disable the
Stop & Start system by pressing the Stop & Start cancel switch.
■Changing the idling stop time with the air conditioning system on
The length of time the Stop & Start system will operate when the air conditioning system
is on can be changed by performing the followi ng operation. (The length of time the Stop
& Start system will operate when the air condit ioning system is off cannot be changed.)
●Setting by pressing and holding the Stop & Start cancel switch
Each time the Stop & Start cancel switch is pressed and held for 3 seconds or more, the
system changes between standard and extended. The system status can be confirmed
on the multi-information display screen. ( P. 97)
●Settings using the multi-information display
( P. 106) or ( P. 107).
■The Stop & Start system protection function
●When the volume of the audio system is ex cessively high, sound output from the audio
system may suddenly be cut of f in order to reduce battery consumption. To prevent the
audio system from being cut off, keep the vo lume of audio system at a moderate level.
If the audio system has been cut off, turn the engine switch off, wait for 3 seconds or
more and then turn it to ACCESSORY mode or IGNITION ON mode to re-enable
the audio system.
●The audio system may not be activated if the battery terminals are disconnected and
then reconnected. If this occurs, turn the engine switch off and then turn it to IGNI-
TION ON mode and then off twice to activate the audio system.
■To prevent damage to the turbocharger
Allow the engine to idle immediately after driving at high speeds or long periods of uphill
driving. To allow the engine idle when the vehicle is stopped, disable the Stop & Start sys-
tem by pressing the Stop & Start cancel switch. ( P. 292)
■Replacing the battery
P. 620
■Displaying the Stop & Start system status
P. 106
2964-5. Using the driving support systems
IS200t_EE(OM53D77E)
■Multi-information display messages
If the following situations, and a message may be displayed on the multi-informa-
tion display.
●When the engine cannot be stopped by the Stop & Start system
MessageDetails
“Depress Brake
Firmly to Activate.”
The brake pedal is not depressed enough. If the brake pedal is depressed further, the sys-
tem will operate.
“For Climate Con-
trol.”
• The air conditioning system is being used when the ambient temperature is high or low.
If the difference between the set temperature
and cabin temperature is small, the system will be
enabled.
• is ON.
“Battery Charging.”
• The battery charge amount may be low. Engine stop is temporarily prohibited to priori-
tize charging of the battery, but if the engine is
operated for a short while, engine stop is
allowed.
• A refresh charge may be occurring, such as when the battery is undergoing a periodic
recharge, for a while after the battery terminals
have been disconnected and reconnected, for
a while after the battery has been replaced, etc.
After a refresh charge of approximately 5 to 60
minutes completes, the system can be operated.
• The engine may have been started with the hood opened.
Close the hood, turn the engine switch off, wait
30 seconds or more, and then start the engine.
• The battery may be cold.
Operating the engine for a short while allows the
system to recover due to the temperature
increase in the engine compartment.
• The battery may be extremely hot. If the engine compartment is allowed to cool suf-
ficiently, the system recovers.
If the message is displaye d continuously (more than
60 minutes), the battery may have deteriorated.
Contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
2974-5. Using the driving support systems
4
Driving
IS200t_EE(OM53D77E)
●When the engine automatically restarts while stopped by the Stop & Start system
■Stop & Start system warning messages
If a system malfunction occurs, a warning message will be displayed on the multi-infor-
mation display to inform the driver of the need for caution. ( P. 572)
■If the Stop & Start cancel indicator continues to flash
The system may be malfunctioning. Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repa irer, or any reliable repairer.
MessageDetails
“For Brake System.” • The vehicle is being driven in a high altitude
area.
• The brake booster vacuum is low.
When the brake booster vacuum reaches a pre-
determined level, the system will be enabled.
“Driver Seat Belt
Unbuckled.”
The driver seat belt is not fastened.
“Non-Dedicated
Battery.”
A non-dedicated battery for the Stop & Start sys-
tem may have been installed. The Stop & Start system does not operate. Have
the vehicle inspected by any authorized Lexus
retailer or Lexus authoriz ed repairer, or any reli-
able repairer.
MessageDetails
“For Climate Con-
trol.”
• The air conditioning system has been turned on or is being used.
• has been turned on.
“For Brake System.”
The brake pedal has been depressed further or
pumped. The system will be enable d after the engine runs
and the brake booster vacuum reaches a prede-
termined level.
“Battery Charging.”
The battery charge amount may be low. The engine is restarted to prioritize battery
charging. Operating the engine for a short while
allows the system to recover.
“Steering Wheel
Turned.”
The steering wheel was operated.
“Driver Seat Belt
Unbuckled.”
The driver seat belt has been unfastened.
2994-5. Using the driving support systems
4
Driving
IS200t_EE(OM53D77E)
Turns the Lexus parking assist-sensor
on/off
When on, the indicator light comes on
to inform the driver that the system is
operational.
Lexus parking assist-sensor
: If equipped
The distance from your vehicle to nearby obstacles when parallel parking or
maneuvering into a garage is measured by the sensors and communicated via
the displays and a buzzer. Always chec k the surrounding area when using this
system.
Types of sensors
Except F SPORT modelsF SPORT models
Front center sensors
Front corner sensors Rear corner sensors
Rear center sensors
Lexus parking assist-sensor switch
1
2
3
4
3004-5. Using the driving support systems
IS200t_EE(OM53D77E)
When the sensors detect an obstacle, the following displays inform the driver of
the position and distance to the obstacle.
■Multi-information displayFront corner sensor operation
Front center sensor operation
Rear corner sensor operation
Rear center sensor operation
■Lexus Display Audio screenLexus parking assist-sensor
When the vehicle is moving forward.
A graphic is automatically displayed
when an obstacle is detected. The
screen can be set so that the graphic
is not displayed. ( P. 304)
: Select to mute the buzzer sounds.
Lexus parking assist-sensor
Rear Crossing Traffic Alert
(if equipped)
When the vehicle is moving back-
ward.
A simplified image is displayed on
the upper part of the screen when an
obstacle is detected.
Display
1
2
3
4
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2
3