ECO mode Lexus GX460 2020 / LEXUS 2020 GX460 (OM60R27U) Repair Manual

474
GX460_OM_OM60R27U_(U)6-3. Do-it-yourself maintenance
WARNING
■Tire pressure warning system operation
The tire pressure warning system may not provide warning immediat
ely if a tire bursts
or if sudden air leakage occurs.
■When inspecting or replacing tires
Observe the following precautions to preven t 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 result ing in death or serious 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 (radial, 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 initialize tire inflatio n pressure without first adjustin g the tire inflation pressure to
the specified level. Otherwise, the tire pre ssure warning light may not come on even if
the tire inflation pressure is low, or it ma y come on when the tire inflation pressure is
actually normal.

5397-2. Steps to take in an emergency
GX460_OM_OM60R27U_(U)
7
When trouble arises
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. 543)
●There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the follo wing 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 the 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 in spected by your Lexus dealer.
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
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2
3
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5417-2. Steps to take in an emergency
GX460_OM_OM60R27U_(U)
7
When trouble arises
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch
will turn to IGNITION ON mode.
When the smart access system with
push-button start is deactivated in cus-
tomization setting, the engine switch will
turn to ACCESSORY mode.
Firmly depress the brake pedal and check that is shown on the multi-
information display.
Press the engine switch shortly and firmly.
In the event that the engine still cannot be started, contact your Lexus dealer.
■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. 484)
■Changing engine switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the engine
switch.
The engine does not start and modes will be changed each time the switch is pressed.
(  P. 197)
■When the electronic key does not work properly
●Make sure that the smart access system wi th push-button start has not been deacti-
vated in the customization setting. If it is off, turn the function on.
(Customizable features:  P. 576)
●Check if battery-saving mode is set. If it is set, cancel the function. (P. 123)
Starting the engine
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5447-2. Steps to take in an emergency
GX460_OM_OM60R27U_(U)
Start the engine of the second vehicle. Increase the engine speed slightly and
maintain at that level for approximatel y 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 your vehicle’s engine has started, remove the jumper cables in the exact
reverse order in which they were connected.
Once the engine starts, have the vehicle checked at your Lexus dealer 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 disc harge gradually even when the vehicle is not
in use, due to natural discharge and the draini ng 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
●In some cases, it may not be possible to un lock the doors using the smart access system
with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical 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.
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582
GX460_OM_OM60R27U_(U)8-2. Customization
■Exterior lights (P. 392)
■Front automatic air conditioning system (P. 376)
*: If equipped
FunctionDefault settingCustomized
setting
Time elapsed before the
running board lights turn off15 seconds
Off
—OO7.5 seconds
30 seconds
Operation of the running
board lights when the doors
are unlocked with the smart
access system with push-
button start or wireless
remote control
OnOff——O
Operation of the running
board lights when you
approach the vehicle with
the electronic key on your
person
OnOff——O
Running board lightsOnOff——O
Operation of the running
board lights when the door
is opened
OnOff——O
123
FunctionDefault settingCustomized setting
Switching between outside
air and recirculated air
mode linked to automatic
mode switch operation
*
AutoManual—OO
A/C automatic mode
switch operationAutoManual—OO
Exhaust gas sensor sensitiv-
ityStandard-3 to 3—OO
123

609Alphabetical index
GX460_OM_OM60R27U_(U)
Emergency flashers .............................500
EngineAccessory mode..................................197
Brake Override System .................. 165
Compartment....................................... 451
Drive-Start Control............................ 166
Hood ....................................................... 450
How to start the engine ................... 196
Identification number ...................... 554
If the engine will not start............... 538
Ignition switch (engine switch)..... 196
Overheating ........................................ 546
Engine compartment cover ............. 452
Engine coolant....................................... 455 Capacity ................................................ 556
Checking............................................... 455
Preparing and checking before winter ....................................367
Engine immobilizer system ..................76
Engine oil ................................................. 453 Capacity ................................................ 554
Checking................................................453
Preparing and checking before winter ....................................367
Warning message ............................. 522
Engine oil maintenance data ........... 454
Engine switch ...........................................196
Engine switch light ............................... 392
Event data recorder (EDR) ...................10 Flat tire .......................................................524
Floor mats....................................................26
Fluid
Automatic transmission ................. 558
Brake........................................................559
Steering ................................................. 560
Washer ................................................... 463
Fog lights.................................................... 217 Replacing light bulbs ....................... 497
Switch ........................................................ 217
Four-wheel drive system................... 340
Front passenger occupant classification system ............................ 47
Front passenger’s seat belt reminder light ....................................... 513
Front seats ................................................. 128 Adjustment..............................................128
Cleaning................................................. 437
Correct driving posture .................... 28
Driving position memory...................141
Head restraints .....................................146
Seat heaters ..........................................390
Seat position memory .........................141
Front turn signal lights .........................207 Replacing light bulbs ....................... 493
Turn signal lever ................................. 207
Wattage ...................................................561F

615Alphabetical index
GX460_OM_OM60R27U_(U)
Crawl Control switch ......................344
Cruise control switch.......................254
“DAC” switch...................................... 348
Door lock switches ............................ 106
Driving position memory switches .................................................. 141
Emergency flashers switch .......... 500
Engine switch ........................................ 196
Fog light switch ..................................... 217
Four-wheel drive control switch................................................... 340
Headlight cleaner switch ............... 224
Height control switch...................... 335
LDA (Lane Departure Alert) .......248
Light switches ..................................... 209
Moon roof switches........................... 159
Multi-terrain Monitor switch ....... 288
Multi-terrain Select switch.............284
“ODO TRIP” button ............................89
Outside rear view mirror switches ................................................ 153
Parking assist........................................266
Power door lock switch ...................... 111
Power window switch ...................... 156
Rear window wiper and washer switch................................... 222
Rear window and outside rear view mirror
defoggers switch ............................. 381
Second start mode switch............ 203
Seat heater switches........................ 390
Talk switch
*
Tilt and telescopic steering control switch .................................... 149 Vehicle-to-vehicle distance
switch ................................................... 260
VSC OFF switch ............................... 353
Window lock switch ..........................156
Windshield wipers and washer switch ....................................218
Tachometer ............................................... 88
Tail lights .................................................. 209 Light switch........................................... 209
Replacing light bulbs ....................... 497
Talk switch
*
Telephone switch
*
Theft deterrent system Alarm .......................................................... 78
Engine immobilizer system ..............76
Tire inflation pressure.......................... 476 Maintenance data............................. 560
Tire pressure warning system ......... 465 Function .................................................. 465
Initializing ............................................... 465
Initializing procedures..................... 466
Installing tire pressure warning valves and transmitters................ 465
Registering ID codes ....................... 467
Warning light .........................................513
Tires ............................................................464 Chains ..................................................... 367
Checking ............................................... 464
If you have a flat tire .......................... 524
Inflation pressure................................ 476
Information............................................565
Replacing ............................................... 524
Rotating tires ........................................ 464
T
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.