ECO mode LEXUS LS600H 2015 Workshop Manual

4626-3. Do-it-yourself maintenance
LS600hL_U(OM50E41U)
CAUTION
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as dangerous
handling characteristics, which may lead to an accident resulting in death or seri-
ous injury.
●Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Lexus.
●Do not mix differently constructed tires (r adial, bias-belted or bias-ply tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
■When initializing the tire pressure warning system
Do not operate the tire pressure warning re set switch without first adjusting the tire
inflation pressure to the specified level. Otherwise, the tire pressure warning light
may not come on even if the tire inflation pressure is low, or it may come on when
the tire inflation pressure is actually normal.
■Caution regarding interference with electronic devices
●Users of any electrical medical device other than implantable cardiac pacemak-
ers, cardiac resynchronization therapy-pacemakers or implantable cardioverter
defibrillators should consult the manufacturer of the device for information about
its operation under the influence of radio waves.
Radio waves could have unexpected effects on the operation of such medical
devices.
●People with implantable cardiac pacemak-
ers, cardiac resynchronization therapy-
pacemakers or implantable cardioverter
defibrillators should not come within 17.7 in.
(450 mm) of the tire pressure warning sys-
tem initiators. The radio waves may affect
the operation of such devices.

4716-3. Do-it-yourself maintenance
6
Maintenance and care
LS600hL_U(OM50E41U)
■Checking interval
Front air conditioning filter
Inspect and replace the air conditioning fil ter when a message is appeared on the
multi-information display. In dusty areas or areas with heavy traffic flow, early
replacement may be required. (For sche duled maintenance information, please
refer to the “Owner’s Manual Supplement” or “Scheduled Maintenance”.)
Rear air conditioning filter
Replace every 9000 miles (15000 km).
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
■After changing the front air conditioning filter
The front air conditioning filter maintenanc e data should be reset. Perform the fol-
lowing procedures:
Turn the power switch to ON mode.
Press and hold (on the air conditioning panel) for 4 seconds or more.
A buzzer will sound to indicate that the maintenance data has been successfully
reset.
■Rear air conditioning filter
If it is necessary to clean or replace the filter, contact your Lexus dealer.
■Climate control seat filter
Filters are installed in the seats. When it is necessary to clean or replace the filters,
contact your Lexus dealer.
1
2
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the system.

4977-2. Steps to take in an emergency
7
When trouble arises
LS600hL_U(OM50E41U)
*1: Open door warning buzzer:A buzzer will sound if the vehicle reaches a speed of 3 mph (5 km/h) with any
door open.
*2: Driver’s and front passenger’s seat belt buzzer:The driver’s and front passenger’s seat belt buzzer sounds to alert the driver and
front passenger that his or her seat belt is not fastened. Once the power switch is
turned to ON mode, the buzzer sounds for 6 seconds. If the vehicle reaches a
speed of 12 mph (20 km/h), the buzzer sounds once. If the seat belt is still unfas-
tened after 30 seconds, the buzzer will sound intermittently for 10 seconds. Then,
if the seat belt is still unfastened, the buzzer will sound in a different tone for 20
more seconds.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure
such as
• Natural causes ( P. 4 9 9 )
• Flat tire ( P. 506, 515)
Adjust the tire inflation pressure
(including the spare tire) to the
specified level.
The light will turn off after a
few minutes. In case the light
does not turn off even if the
tire inflation pressure is
adjusted, have the system
checked by your Lexus
dealer.
When the light comes on
after blinking for 1 minute:
Malfunction in the tire pres-
sure warning system
( P. 4 9 9 )
Have the system checked by
your Lexus dealer.
Warning lightWarning light/DetailsCorrection procedure

5187-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
One of the following may be the cause of the problem:
●One or both of the 12-volt battery terminals may be disconnected.
●The 12-volt battery may be discharged. ( P. 5 2 7 )
Contact your Lexus dealer if the problem cannot be repaired, or if repair proce-
dures are unknown.
When the hybrid system does not start, the following steps can be used as
an interim measure to star t the hybrid system if the power switch is func-
tioning normally:
Turn the power switch to ON mode ( P. 217) and check that the park-
ing brake is set.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch fo r about 15 seconds while depressing
the brake pedal firmly.
Even if the hybrid system can be star ted using the above steps, the system
may be malfunctioning. Have the vehicle inspected by your Lexus dealer.
The interior lights and headlights do not turn on, or the horn does
not sound.
Emergency start function
1
2
3
4

5267-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of
the electronic key to the power
switch.
If any of the doors is opened or closed
after the key was touched to the
switch to start the vehicle, an alarm
will sound to indicate that the start
function cannot detect the key.
Press the power switch within 10 seconds of the buzzer sounding,
keeping the brake pedal depressed.
In the event that the hybrid system still cannot be started, contact your
Lexus dealer.
■Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when stop-
ping the hybrid system.
■Replacing the key battery
As the above procedure is a temporary meas ure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted. ( P. 4 7 2 )
■Changing power switch modes
Within 10 seconds of the buzzer soundi ng, release the brake pedal and press the
power switch.
The hybrid system does not start and modes will be changed each time the switch is
pressed. ( P. 2 1 7 )
Starting the hybrid system
1
2
CAUTION
■When using the mechanical key and operating the power windows and moon
roof
Operate the power window or moon roof af ter 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 the power window or moon roof.
3

5287-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
Maintain the engine speed of the second vehicle and start the hybrid
system of your vehicle by turning the power switch to ON mode.
Make sure the “READY” indicator co mes on. If the indicator does not
come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables in the
exact reverse order from wh ich they were connected.
Once the hybrid system starts, have the vehicle inspected at your Lexus
dealer as soon as possible.
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
■When the 12-volt battery is removed or discharged
The hybrid system may not start.
(  P. 4 5 1 )
■Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of certain elec-
trical appliances. If the vehicle is left for a long time, the 12-volt battery may dis-
charge, and the hybrid system may be unable to start. (The 12-volt battery recharges
automatically while the hybrid system is operating.)
■When recharging or replacing the 12-volt battery
●Make sure that the key is not inside the vehicle when recharging or replacing the
12-volt battery. The key may be locked in the vehicle if the alarm is activated.
(  P. 9 1 )
●In some cases, it may not be possible to unlock the doors using the smart access
system with push-button start when the 12-volt battery is discharged. Use the wire-
less remote control or the mechanical key to lock or unlock the doors.
■If the 12-volt battery is discharged
The information stored in the computer will be deleted.
If the 12-volt battery is discharged, have the vehicle inspected by your Lexus dealer.
5
6
7

5708-2. Customization
LS600hL_U(OM50E41U)
Automatic
air condi-
tioning sys-
tem
( P. 3 3 6 )
A/C Auto switch opera-
tionOnOffO—O
Exhaust gas sensor sensi-
tivityStandard-3 to 3O—O
Air conditioning control of
Eco drive modeOnOff——O
Climate
control
seats
( P. 3 8 7 )
Front climate control seat
temperature adjustment
during automatic opera-
tion (individual seat adjust-
ment available)
Level 3
(standard)
Level 1
(cool) to level 5
(warm)
O—O
Rear climate control seat
start-up conditions when
power switch is in the ON
position (individual seat
adjustment available)
OffOn
(AUTO)O—O
Function that warms seats
faster than usual (individual
seat adjustment available)
OnOff——O
Time until function that
warms seats faster than
usual turns off (individual
seat adjustment available)
Standard
Short
——OLong
Heated
steering
wheel

(  P. 3 8 5 )
Automatic steering wheel
heatingOnOffO—O
Time until automatic steer-
ing wheel heating turns offLevel 3
(standard)
Level 1
(short) to level 5 (long)
O—O
ItemFunctionDefault settingCustom-
ized setting123

602Alphabetical index
LS600hL_U(OM50E41U)
Driver’s seat position memory .......... 172
Driving........................................................ 198Break-in tips .......................................... 199
Correct driving posture .................... 34
Driving mode select switch ......... 283
Hybrid vehicle driving tips............. 323
Procedures ............................................ 198
Winter drive tips .................................325
Dynamic radar cruise control with full-speed range ....................... 257 Function .................................................. 257
Eco drive mode ..................................... 283
EDR (Event data recorder) .................... 11
Electric motor (traction motor) ..........76
Electric Power Steering (EPS) ....... 290 Function ................................................. 290
Warning light .......................................494
Electronic key ......................................... 120 If the electronic key does not operate properly.............................524
Replacing the battery ....................... 472
Electronically modulated air suspension............................................ 287
Emergency flashers ............................. 484 Emergency, in case of
If the 12-volt battery is discharged......................................... 527
If the electronic key does not operate properly ........ 524
If the hybrid system will not start ......................................... 517
If the parking brake cannot be released .......................520
If the shift lever cannot be shifted from P ..............519
If the warning buzzer sounds ...... 493
If the warning light turns on .......... 493
If the warning message is displayed ........................................503
If you have a flat tire ...............506, 515
If you think something is wrong .............................................. 492
If your vehicle becomes stuck......................................................535
If your vehicle has to be stopped in an emergency..........485
If your vehicle needs to be towed .......................................486
If your vehicle overheats ................530
E

603Alphabetical index
LS600hL_U(OM50E41U)
Energy monitor ........................................ 113
EngineACCESSORY mode........................ 217
Compartment......................................439
Engine switch ........................................ 216
Hood ........................................................436
How to start the hy brid system .... 216
Identification number ...................... 539
If the hybrid system will not start......................................... 517
Ignition switch (power switch).................................. 216
Overheating ........................................ 530
Power switch......................................... 216
Engine compartment cover ............. 440
Engine coolant....................................... 445 Capacity .................................................543
Checking................................................445
Preparing and checking before winter ....................................325
Engine coolant temperature gauge ........................................................ 99
Engine oil ................................................. 442 Capacity .................................................. 541
Checking................................................ 442
Preparing and checking before winter ....................................325
Engine switch ...........................................216
EPS (Electric Power Steering) .............. 290 Function ................................................. 290
Warning light .......................................494
EV drive mode......................................... 221
Event data recorder (EDR) .................... 11 First-aid kit storage belt......................375
Flat tire
Vehicles with a spare tire ............. 506
Vehicles with run-flat tires.............. 515
Floor mats....................................................32
Fluid Brake........................................................545
Hybrid transmission ......................... 544
Washer ................................................... 449
Fog lights...................................................243 Replacing light bulbs .........................481
Switch ...................................................... 243
Footwell light .......................................... 360
Front automatic air conditioning system .................................................... 336
Front fog lights........................................243 Replacing light bulbs .........................481
Switch ...................................................... 243
Front passenger occupant classification system ........................... 55
Front seats ................................................. 156 Adjustment..............................................156
Cleaning................................................. 422
Climate control seats ...................... 387
Correct driving posture .................... 34
Driving position memory................. 172
Head restraints ..................................... 179
Power easy access system .............159
Seat position memory ....................... 172
Front side marker lights......................234 Light switch........................................... 234
Replacing light bulbs .........................481
Welcome light illumination control.................................................... 126F

611Alphabetical index
LS600hL_U(OM50E41U)
Shift lever ................................................. 223Hybrid transmission.......................... 223
If the shift lever cannot be shifted from P ............. 519
Shift lever light ....................................... 360
Shift lock system..................................... 519
Shopping bag hooks ........................... 373
Side airbags ............................................... 43
Side marker lights................................. 234 Light switch ........................................... 234
Replacing light bulbs ......................... 481
Welcome light illumination control ................................................... 126
Side mirrors ............................................. 185 Adjusting and folding........................ 185
BSM (Blind spot monitor) ............ 308
Linked mirror function when reversing ................................. 187
Mirror position memory ................... 172
Side turn signal lights ...........................227 Replacing light bulbs ......................... 481
Turn signal lever ................................. 227
Smart access system with push-button start .......................125 Antenna location ................................. 128
Entry functions ...................................... 125
Starting the hybrid system .............. 216
Snow mode ............................................. 225
Snow tires ................................................ 328 Spare tire ................................................. 506
Inflation pressure................................ 546
Storage location ................................. 507
Spark plug ............................................... 543
Specifications......................................... 538
Speedometer .............................................99
Sport mode ............................................. 283
Steering lock ............................................ 218 Column lock release .........................218
Steering wheel ........................................ 182 Adjustment..............................................182
Heated steering wheel ...................385
Power easy access system .............159
Steering wheel position memory .............................. 172
Stop lights Replacing light bulbs .........................481
Storage feature ..................................... 364
Stuck If the vehicle becomes stuck........535
Sun shade Rear ..........................................................395
Rear door ..............................................398
Roof ............................................................193
Sun visors..................................................376