ECO mode Lexus IS250 2014 Workshop Manual

4858-2. Steps to take in an emergency
8
When trouble arises
IS250_EE(OM53C51E)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
A buzzer also sounds.
→Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Indicates that the vehicle is being driven at 5 km/h (3
mph) or more with the parking brake still engaged
A buzzer also sounds.
→Release the parking brake.
Indicates that the shift lever was used to attempt to shift
to the first gear position in M mode on a slippery road
surface
The gear position will not shift from the second gear.
A buzzer also sounds.
→Drive the vehicle in the second or a higher gear
position.
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system
A buzzer also sounds.
→Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Indicates a malfunction in:
•The ABS; or
• The brake assist system
A buzzer also sounds.
→Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Indicates that the engine coolant temperature is too high
A buzzer also sounds.
→P. 5 3 1
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)

4908-2. Steps to take in an emergency
IS250_EE(OM53C51E)
■Warning messages
The warning message illustrations used are intended as examples, and may differ from
the image that is actually displayed on the multi-information display.
■Warning message in radar cruise mode (if equipped)
In the following situations, the warning message may not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the vehicle
ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■The LDA (Lane Departure Alert) lane departure warning function (if equipped)
In the following situations, the warning message will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LDA system func-
tions
●When the lane lines cannot be recognized
■Conditions that the tire pressure warning system may not function properly (if
equipped)
→P. 4 3 1
■Warning buzzer
→P. 4 8 0
(If equipped)
Indicates that the PCS (Pre-Crash Safety system) is not
currently functional because the grille cover or the sen-
sor is dirty
→Check the grille cover and the sensor and clean
them if they are dirty.
Indicates that operation of large electricity consuming
systems such as the air conditioning system are sus-
pended
→Stop using unnecessary electric components to
reduce electricity consumption. Wait a while until
the electric power supply is restored.
(If equipped)
Indicates that the LDA (Lane Departure Alert) system
cannot be used because the vehicle speed is lower than
approximately 50 km/h (32 mph)
→Drive the vehicle at 50 km/h (32 mph) or higher.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)

4928-2. Steps to take in an emergency
IS250_EE(OM53C51E)
Once3 times
The electronic key was carried out-
side the vehicle and a door other
than the driver’s door was opened
and closed while the engine switch
was in a mode other than off.
→Bring the electronic key back
into the vehicle.
The driver’s door was opened and
closed while the electronic key was
not in the vehicle, the shift lever was
in P and the engine switch was not
turned off.
→Turn the engine switch off.
→Bring the electronic key back
into the vehicle.
9 times
An attempt was made to drive when
the electronic key was not inside the
vehicle.
→Confirm that the electronic key
is inside the vehicle.
Con-
tinuous
An attempt was made to lock the
doors using the smart entry & start
system while the electronic key was
still inside the vehicle.
→Retrieve the electronic key
from the vehicle and lock the
doors again.
OnceCon-
tinuous
An attempt was made to lock either
front door by opening a door and
putting the inside lock button into
the lock position, then closing the
door by pulling on the outside door
handle with the electronic key still
inside the vehicle.
→Retrieve the electronic key
from the vehicle and lock the
doors again.
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Vehicles with the entry function)
(Flashes)

5228-2. Steps to take in an emergency
IS250_EE(OM53C51E)
One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
●The battery may be discharged. (→P. 5 2 7 )
●There may be a malfunction in the steering lock system.
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional if the problem cannot be repaired, or if repair procedures are
unknown.
When the engine does not start, the following steps can be used as an interim
measure to start the engine if the engine switch is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal-
functioning. Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
The starter motor does not turn over, the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function
1
2
3
4

5268-2. Steps to take in an emergency
IS250_EE(OM53C51E)
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when stopping
the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the electronic
key battery be replaced immediately when the battery is depleted. (→P. 4 4 2 )
■Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set, the alarm
may be triggered.
■Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is pressed.
(→P. 1 9 3 )
■When the electronic key does not work properly
●Make sure that the smart entry & start system has not been deactivated in the customi-
zation setting. If it is off, turn the function on.
(Customizable features →P. 551)
●Check if battery-saving mode is set. If it is set, cancel the function. (→P. 131)
CAUTION
■When using the mechanical key and operating the power windows and moon roof
Operate the power window or moon roof after checking to make sure that there is no
possibility of any passenger having any of their body parts caught in the window or
moon roof.
Also, do not allow children to operate the mechanical key. It is possible for children and
other passengers to get caught in power window and moon roof.
3

5298-2. Steps to take in an emergency
8
When trouble arises
IS250_EE(OM53C51E)
Start the engine of the second vehicle. Increase the engine speed slightly and
maintain at that level for approximately 5 minutes to recharge the battery of
your vehicle.
Open and close any of the doors of your vehicle with the engine switch off.
Maintain the engine speed of the second vehicle and start the engine of your
vehicle by turning the engine switch to IGNITION ON mode.
Once the vehicle’s engine has started, remove the jumper cables in the exact
reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as soon
as possible.
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is not
in use, due to natural discharge and the draining effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
■When recharging or replacing the battery
●For vehicles with an alarm: Make sure that the key is not inside the vehicle when
recharging or replacing the battery. The key may be locked in the vehicle if the alarm is
activated. (→P. 8 5 )
●In some cases, it may not be possible to unlock the doors using the smart entry & start
system when the battery is discharged. Use the wireless remote control or the mechan-
ical key to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction.
●The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery.
4
5
6
7

553
9 9-2. Customization
Vehicle specifications
IS250_EE(OM53C51E)
*1: For details about each function: →P. 1 0 2
*2: The default setting varies according to country.
*3:Except F SPORT models
*4: Some status screens cannot be registered (indicated on multi-information display).
*5: 2 of the following items: current fuel consumption, average fuel economy (after reset),
average fuel economy (after refuel), average fuel economy (after start), average vehi-
cle speed (after reset), average vehicle speed (after start), distance (driving range),
distance (after start), elapsed time (after reset), elapsed time (after start), blank.
*6:F SPORT models
*7: The customized setting varies according to country.
Accent color*3BlueRedOO—
Needle*6BlueRed—O—White
Speed indicator*6OFF
50 to 200 km/h
(30 to 125 mph)*7
—O—50 to 160 km/h
(30 to 100 mph)*7
REV indicator*65000 r/min
2000 to 6600
r/m i n
—O—
OFF
REV peak*6ONOFF—O—
Function*1Default settingCustomized setting123

572Alphabetical index
IS250_EE(OM53C51E)
E-mail .........................................................353
Eco drive mode ..................................... 263
Eco Driving Indicator ........................... 104
Eco Driving Indicator Light ............... 102
Elapsed time ..............................................101
Electric Power Steering (EPS)........ 265
Function ..................................................265
Warning light ....................................... 477
Electronic key............................................ 112
Battery-saving function...................... 131
If the electronic key does not
operate properly ............................ 524
Replacing the battery....................... 442
Emergency, in case of
If the electronic key does not
operate properly ............................ 524
If the engine will not start .................521
If the shift lever cannot be
shifted from P ................................... 523
If the vehicle battery is
discharged......................................... 527
If the warning buzzer sounds ...... 476
If the warning light turns on .......... 476
If the warning message is
displayed ............................................ 482
If you have a flat tire ............. 496, 507
If you think something
is wrong............................................... 474
If your vehicle becomes stuck..... 534
If your vehicle has to be
stopped in an emergency.......... 467
If your vehicle needs to
be towed............................................ 468
If your vehicle overheats ................. 531Emergency brake signal.................... 266
Emergency flashers ............................. 466
Emergency tire puncture
repair kit ................................................ 507
Engine ....................................................... 540
ACCESSORY mode ....................... 193
Compartment ....................................... 417
Engine switch ........................................ 192
Hood ......................................................... 415
How to start the engine ................... 192
Identification number....................... 539
If the engine will not start ................. 521
Ignition switch (engine switch) ..... 192
Overheating .......................................... 531
Engine coolant......................................... 421
Capacity................................................. 543
Checking ................................................. 421
Preparing and checking
before winter.................................... 288
Engine coolant temperature
gauge ........................................................ 95
Engine immobilizer system .................. 77
Engine oil .................................................. 418
Capacity................................................... 541
Checking ................................................. 418
Preparing and checking
before winter.................................... 288
Engine switch ...........................................192
EPS (Electric Power Steering) ....... 265
Function.................................................. 265
Warning light........................................ 477
E

582Alphabetical index
IS250_EE(OM53C51E)
Speedometer ............................................ 95
Speed indicator ...................................... 102
Sport mode.............................................. 263
Steering lock ............................................ 194
Column lock release..........................194
Steering wheel ........................................ 159
Adjustment............................................. 159
Audio switches................................... 300
Heated steering wheel.................... 387
Power easy access system .............. 151
Steering wheel position
memory.................................................. 151
Stop lights
Emergency brake signal ................ 266
Replacing light bulbs..........................461
Storage feature....................................... 391
Stuck
If the vehicle becomes stuck ........534
Sun visors ................................................ 398
Sun shade
Rear ......................................................... 400
Roof ..............................................................171 switch settings ..................................102
Switches
Audio remote control
switches ..............................................300
Automatic High Beam switch..... 209
BSM (Blind Spot Monitor)
switch ................................................... 278
Cruise control switch ...........225, 229
Door lock switches............................... 121
Driving mode select switch.......... 263
Driving position memory
switches ..................................................151
Emergency flashers switch........... 466
Engine switch ........................................ 192
Fog light switch..................................... 213
Heated steering wheel switch .... 387
Ignition switch ....................................... 192
LDA (Lane Departure
Alert) switch ..................................... 242
Lexus parking assist-sensor
switch .................................................... 247
Light switch........................................... 206
Meter control switches...................... 101
Moon roof switches ........................... 170
Outside rear view mirror
switches ................................................ 163
Paddle shift switches.......................... 199
PCS OFF switch................................. 272
Power door lock switch..................... 121