2015 Lexus IS200t battery

2004-2. Driving procedures
IS200t_EE(OM53D19E)
NOTICE
■To prevent battery discharge
●Do not leave the engine switch in ACCESSORY or IGNITION ON mode for long
periods of time without the engine running.
●If “ACCESSORY” or “IGNITION ON” is displayed on the meters while the engine is
not running, the engine switch is not off. Exit the vehicle after turning the engine
switch off.
●Do not stop the engine when the shift lever is in a position other than P. If the engine is
stopped in another shift lever position, the engine switch will not be turned off but
instead be turned to ACCESSORY mode. If the vehicle is left in ACCESSORY
mode, battery discharge may occur.
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start or stalls frequently, have your vehicle checked
by any authorized Lexus dealer or repair er, or another duly qualified and equipped
professional immediately.
■Symptoms indicating a malfunction with the engine switch
If the engine switch seems to be operating somewhat differently than usual, such as the
switch sticking slightly, there may be a malfunction. Contact any authorized Lexus
dealer or repairer, or another duly qualif ied and equipped professional immediately.

2124-3. Operating the lights and wipers
IS200t_EE(OM53D19E)
■Light reminder buzzer
A buzzer sounds when the engine switch is turned off or turned to ACCESSORY mode
and the driver’s door is opened while the lights are turned on.
■Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the number of passen-
gers and the loading condition of the vehicle to ensure that the headlights do not inter-
fere with other road users.
■Customization
Settings (e.g. light sensor se nsitivity) can be changed.
(Customizable features: →P. 5 8 2 )
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.

2344-5. Using the driving support systems
IS200t_EE(OM53D19E)
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 maintained brake force is automatically
canceled.
●This function operates on flat surfaces as well as steep inclines.
●Sound may be generated from the brakes, 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 orlow.
• The battery is not sufficiently charged or is undergoing a periodic recharge.
• The brake booster vacuum is low.
• The vehicle is stopped 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 transmission 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 reconnected.
• For a while after the battery replacement.
• Vehicles with a power heater: The power heater is being used.
Hill-start assist control

2354-5. Using the driving support systems
4
Driving
IS200t_EE(OM53D19E)
●In the following situations, the engine will restart automatically if the engine is stopped
by the Stop & Start system. (To enable stopping 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 stopping 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.
■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. 1 9 6 )
●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.
●If the hood is closed after the engine is st arted with the hood open, the Stop & Start sys-
tem will not operate. Close the hood, turn th e engine switch off, wait 30 seconds or
more, and then start the engine.
■When to use the Stop & Start system
●Use the Stop & Start system when stopping the vehicle temporarily at red lights, inter-
sections, etc. When stopping the vehicle for a longer period of time, stop the engine
completely.
●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. 2 3 7 )
●If the engine switch is pressed when the engine 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. 1 9 6 )
●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 dealer or repairer, or another duly
qualified and equipped professional for details.

2364-5. Using the driving support systems
IS200t_EE(OM53D19E)
■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. 4 0 4
If the windshield fogs up frequently, press the Stop & Start cancel switch to disable the
system.
■Air conditioning system while the engine is stopped by the Stop & Start system
While the engine is stopped by the Stop & Start system, the air conditioning system
(cooling, heating and dehumidifying functions) is canceled and will only blow air or will
stop blowing air. In order to prevent the air conditioning system from being canceled, dis-
able 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 cond itioning 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 extend ed. The system status can be confirmed
on the multi-information display screen. ( →P. 1 0 0 )
●Settings from the multi-information display
Press the < or > meter control switch ( →P. 101) and select .
Press the meter control switch to display the Stop & Start settings screen.
Press the ∧ or ∨ meter control switch to select Time Setting and then press .
Press the ∧ or ∨ meter control switch to select Standard or Extended and then press
.
■The Stop & Start system protection function
●When the volume of the audio system is excessively high, sound output from the audio
system may suddenly be cut off 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 driv ing 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. 233)
■Replacing the battery
→P. 5 5 5
■Displaying the Stop & Start system status
→P. 1 0 6
1
2
3
4

2374-5. Using the driving support systems
4
Driving
IS200t_EE(OM53D19E)
■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 (Examples: A short time after replacing the battery, remov-
ing battery terminals, etc.)
After a refresh charge of approximately 30 to
60 minutes completes, the system can be oper-
ated.
• The engine may have been started with the hood opened.
Close the hood, turn the engine switch off, wait
for a short while, 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 is stopped and the engine compart-
ment is allowed to cool sufficiently, the system
recovers.
“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.

2384-5. Using the driving support systems
IS200t_EE(OM53D19E)
●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. 5 1 2 )
■If the Stop & Start cancel indicator continues to flash
The system may be malfunctioning. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional. “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
dealer or repairer, or another duly qualified and
equipped professional.
MessageDetails
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 enabled 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
Tu r n e d . ”
The steering wheel was operated.
“Driver Seat Belt
Unbuckled.”
The driver seat belt has been unfastened.

2884-5. Using the driving support systems
IS200t_EE(OM53D19E)
■Turning off both TRC and VSC systems
To turn the TRC and VSC systems off, press and hold or for more than 3
seconds while the vehicle is stopped.
The VSC OFF indicator light will come on and the “TRC OFF” will be shown on the
multi-information display.
*
Press or again to turn the systems back on.
*: On vehicles with pre-crash safety system, pre-crash brake assist and pre-crash brak-
ing will also be disabled. The pre-crash safe ty system warning light will come on and
the message will be shown on the multi-information display. ( →P. 2 9 1 )
■When the message is displayed on the mult i-information display showing that TRC has
been disabled even if the VSC OFF switch has not been pressed
TRC cannot be operated. Contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
■When the battery is disconnected
The steering wheel may move from its straight forward position, but this will be corrected
automatically when driving.
■Sounds and vibrations caused by the ABS, brake assist, TRC, VSC and hill-start assist
control systems
●A sound may be heard from the engine compartment when the brake pedal is
depressed repeatedly, when the engine is started or just after the vehicle begins to
move. This sound does not indicate that a ma lfunction has occurred in any of these sys-
tems.
●Any of the following conditions may occu r when the above systems are operating.
None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slig htly after the ABS is activated.
• The brake pedal may move down s lightly after the ABS is activated.
■EPS operation sound
When the steering wheel is operated, a motor sound may be heard. This does not indi-
cate a malfunction.
■Automatic reactivation of TRC and VSC systems
After turning the TRC and VSC systems off, the systems will be automatically re-enabled
in the following situations:
●When the engine switch is turned off
●If only the TRC system is turned off, the TRC will turn on when vehicle speed increases
If both the TRC and VSC systems are turned off, automatic re-enabling will not occur
when vehicle speed increases.