2874-5. Using the driving support systems
4
Driving
IS200t_EE(OM53D77E)
To change the set speed, operate the lever until the desired set speed is obtained.Increases the speed
Decreases the speed
Fine adjustment: Momentarily move the
lever in the desired direction.
Large adjustment: Hold the lever in the
desired direction.
The set speed will be increased or decreased as follows:
Fine adjustment: By approximately 1.6 km/h (1 mph) each time the lever is operated.
Large adjustment: The set speed can be incr eased or decreased continually until the
lever is released.
Pulling the lever toward you cancels
the constant speed control.
The speed setting is also canceled when
the brakes are applied.
Pushing the lever up resumes the
constant speed control.
Resuming is available when the vehicle
speed is more than approximately 40
km/h (25 mph).
Adjusting the set speed
1
2
Canceling and resuming the constant speed control
1
2
2904-5. Using the driving support systems
IS200t_EE(OM53D77E)
◆When the shift lever is in D
■Stopping the engine
While driving with the shift lever in D,
depress the brake pedal and stop
the vehicle.
The Stop & Start indicator will come
on.
■Restarting the engine
Release the brake pedal.
The Stop & Start indicator will turn off.
Stop & Start system
: If equipped
The Stop & Start system stops and restarts the engine according to the brake
pedal or shift lever operation when the vehicle is stopped.
Stop & Start system operation
2914-5. Using the driving support systems
4
Driving
IS200t_EE(OM53D77E)
◆When the shift lever is shifted to P
■Stopping the engineWhile driving with the shift lever
in D, depress the brake pedal and
stop the vehicle.
The engine will be stopped by the
Stop & Start system and the Stop &
Start indicator will come on.
Shift the shift lever to P.
( P. 209)
The engine will remain stopped.
The engine may restart if the shift lever is shifted from D to P immediately after the
engine is stopped by the Stop & Start sy stem. Additionally, if the engine is not
stopped by the Stop & Start system when vehicle is stopped with the shift lever in
D, it may be stopped by the Stop & Start system when the shift lever is shifted to P.
■Restarting the engine
With the brake pedal depressed, shift the shift lever to a position other than P.
( P. 209)
If the brake pedal was released after the engine was stopped by the Stop & Start
system, the engine will restart when the brake pedal is depressed again. If the
brake pedal was not released after the engine was stopped by the Stop & Start sys-
tem, the engine will restart when the shift le ver is shifted to a position other than P.
1
2
2934-5. Using the driving support systems
4
Driving
IS200t_EE(OM53D77E)
After the engine is stopped by the Stop & Start system when the vehicle is on an
incline, brake force is temporarily maintained to prevent rolling backwards until
the engine is restarted and drive force is generated.
When drive force is generated, the ma intained brake force is automatically
canceled.
●This function operates on flat surfaces as well as steep inclines.
●Sound may be generated from the brak es, but this is not a malfunction.
●Brake pedal response may change and vibration may occur, but these are not
malfunctions.
■Operating conditions
●The Stop & Start system is operational when all of the following conditions are met:
• The brake pedal is being depressed firmly.
• The shift lever is in D or P.
• Normal mode or Eco drive mode is selected as the driving mode.
• is off.
• The driver’s seat belt is fastened.
• The engine is adequately warmed up.
• The driver’s door is closed.
• The accelerator pedal is not being depressed.
• The outside temperature is -5°C (23°F) or higher.
• The hood is closed.
●In the following situations the engine may not be stopped by the Stop & Start system.
This is not a malfunction of the Stop & Start system.
• The air conditioning system is being used when the ambient temperature is high or
low.
• The battery is not sufficiently charged, such as if the vehicle has been parked for a long time and the battery charge has decreased, the electric load is large, the bat-
tery temperature is excessively low or the battery has deteriorated, or is undergoing
a periodic recharge.
• The brake booster vacuum is low.
• The vehicle is stoppe d on a steep incline.
• The steering wheel is being operated.
• Due to traffic or other circumstances the vehicle is stopped repeatedly.
• The vehicle is being driven in a high altitude area.
• Engine coolant temperature or transmissi on fluid temperature is extremely low or
high.
• The battery fluid temperature is extremely low or high.
• For a while after the battery terminals have been disconnected and reconnected.
• For a while after the battery has been replaced.
• Vehicles with a power heater: The power heater is being used.
Hill-start assist control
2944-5. Using the driving support systems
IS200t_EE(OM53D77E)
●In the following situations, the engine will restart automatically if the engine is stopped
by the Stop & Start system. (To enable stoppi ng of the engine by the Stop & Start sys-
tem, drive the vehicle.)
• The air conditioning system is turned on.
• is turned on.
• The steering wheel is operated.
• The shift lever is shifted to M, N or R from D.
• The shift lever is shifted from P.
• Sport mode or snow mode is selected as the driving mode.
• The driver’s seat belt is unfastened.
• The driver’s door is opened.
• The accelerator pedal is depressed.
• The Stop & Start cancel switch is pressed.
• The vehicle starts to roll on an incline.
• Vehicles with a power heater: The power heater is turned on.
●In the following situations, the engine may re start automatically if the engine is stopped
by the Stop & Start system. (To enable stoppi ng of the engine by the Stop & Start sys-
tem, drive the vehicle.)
• The brake pedal is pumped or strongly depressed.
• The air conditioning system is being used.
• The battery is not sufficiently charged.
■If the steering wheel is turned shortly after the engine has started
If the steering wheel is turned shortly after the engine has been started by the Stop &
Start system, the steering wheel may feel heavy.
■Hood
●If the hood is opened while the engine is stopped by the Stop & Start system with the
shift lever in D, the engine will stall and will not be able to be restarted by the automatic
engine start function. In this case, restart the engine using the normal engine starting
procedure. ( P. 204)
●If the hood is opened while the engine is stopped by the Stop & Start system with the
shift lever in P, the engine will be restarted automatically.
●Even if the hood is closed after the engine is started with the hood open, the Stop &
Start system will not operate. Close the hood, turn the engine switch off, wait 30 sec-
onds or more, and then start the engine.
■When to use the Stop & Start system
●When the system does not operate, is canceled, or is malfunctioning, warning mes-
sages and a warning buzzer are used to inform the driver. ( P. 296)
●If the engine switch is pressed when the en gine is stopped by the Stop & Start system,
the engine will stall and will not be able to be restarted by the automatic engine start
function. In this case, restart the engine using the normal engine starting procedure.
( P. 204)
●When the engine is restarted by the Stop & Start system, the power outlet may be tem-
porarily unusable, but this is not a malfunction.
●Installation and removal of electrical components and wireless devices may affect the
Stop & Start system. Contact any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer for details.
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.
2984-5. Using the driving support systems
IS200t_EE(OM53D77E)
WARNING
■When the Stop & Start system is operating
●Depress the brake pedal and apply the parking brake when necessary while the
engine is stopped by the Stop & Start system (while the Stop & Start indicator is on).
●Do not allow anyone to leave the vehicle while the engine is stopped by the Stop &
Start system (while the Stop & Start indicator is on).
An accident may occur due to the automatic engine start function.
●Ensure that the engine is not stopped by the Stop & Start system while the vehicle is in
a poorly ventilated area. The engine may restart due to the automatic engine start
function, causing exhaust gases to collect and enter the vehicle, possibly resulting in
death or a serious health hazard.
NOTICE
■To ensure the system operates correctly
If any of the following situations occur, the Stop & Start system may not operate cor-
rectly. Have your vehicle checked by any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
●While the driver’s seat belt is fastened, the driver’s and front passenger’s seat belt
reminder light flashes.
●Even though the driver’s seat belt is not fastened, the driver’s and front passenger’s
seat belt reminder light does not illuminate.
●Even though the driver’s door is closed, the open door warning light is illuminated or
the interior light is illuminated when the interior light switch is in the door position.
●Even though the driver’s door is open, the open door warning light does not illuminate
or the interior light does not illuminate when the interior light switch is in the door
position.