key battery LEXUS LX570 2018 Owner's Manual

509
LX570_OM_OM60Q78U_(U) 7When trouble arises 7-1. Essential information
Emergency flashers ................... 510
If your vehicle has to be
stopped in an emergency....... 511
7-2. Steps to take in an emergency
If your vehicle needs
to be towed................................. 512
If you think something is
wrong ............................................ 518
Fuel pump shut off system ....... 519
If a warning light turns
on or a warning buzzer
sounds..........................................520
If a warning message is
displayed.....................................528
If you have a flat tire .................. 532
If the engine will not start ........ 544
If the electronic key does
not operate properly ............. 546
If the vehicle battery is
discharged ................................. 549
If your vehicle overheats ......... 552
If the vehicle becomes
stuck .............................................555

546
LX570_OM_OM60Q78U_(U) 7-2. Steps to take in an emergency
If the electronic key does not operate properly Use the mechanical key ( → P. 111) in
order to perform the following opera-
tions (driver’s door only):
Locks all the doors
Closes the windows and moon roof
*(turn and hold)
Unlocks the doors Turning the key rearward unlocks the
driver’s door. Turning the key once again
unlocks the other doors.
Opens the windows and moon roof
* (turn and hold)
* : These settings must be cust omized at your Lexus dealer.If communication between the electronic key and vehicle is interrupted
( → P. 134) or the electronic key ca nnot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors can be opened and
the engine can be started by following the procedure below.
Locking and unlocking the doors and key linked functions 1
2
3
4

5477-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(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. 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. 503)■
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 e ach time the switch is pressed. ( → P. 206)■
Alarm
Using the mechanical key to lock th e doors will not set the alarm system.
If a door is unlocked using the mechanical ke y when the alarm system is set, the alarm
may be triggered. ( → P. 77)■
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. 580)●
Check if battery-saving mode is set. If it is set, cancel the function. ( → P. 134)Starting the engine 1
2
3
4
3

549
LX570_OM_OM60Q78U_(U) 7
When trouble arises 7-2. Steps to take in an emergency
If the vehicle battery is discharged If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt
battery, you can jump start your Lexus following the steps below.
Confirm that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate and
doors locked. ( → P. 79)
Open the hood. Remove the engine compartment cover. ( → P. 474)
Connect the jumper cables.
Positive (+) battery terminal on your vehicle
Positive (+) battery termin al on the second vehicle
Negative (-) battery terminal on the second vehicle
Connect the jumper cable to ground on your vehicle as shown in the illus-
tration.The following procedures may be used to start the engine if the vehicle’s bat-
tery is discharged.
You can also call your Lexus dealer or qualified repair shop. 1
2
3
1
2
3
4

608 What to do if... (Troubleshooting)
LX570_OM_OM60Q78U_(U)What to do if... (Troubleshooting) ●
If you lose your mechanical keys, ne w genuine mechanical keys can be made
by your Lexus dealer. ( → P. 112)●
If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( → P. 114)●
Is the electronic key battery weak or depleted? ( → P. 503)●
Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( → P. 206)●
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person. ●
The function may not operate properly du e to the condition of the radio wave.
( → P. 134)
●
Is the child-protector lock set?
The rear door cannot be opened from in side the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
( → P. 118)If you have a problem, check the foll owing before contacting your Lexus
dealer.
The doors cannot be locked, unlocked, opened or closed You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

609What to do if... (Troubleshooting)
LX570_OM_OM60Q78U_(U) ●
Did you press the engine switch while firmly depressing the brake pedal?
( → P. 205)●
Is the shift lever in P? ( → P. 205)●
Is the electronic key anywhere detectable inside the vehicle? ( → P. 133)●
Is the steering wheel unlocked? ( → P. 208)●
Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. ( → P. 547)●
Is the battery discharged? ( → P. 549)●
Is the engine switch in IGNITION ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
engine switch in IGNITION ON mode ( → P. 215)If you think something is wrong The engine does not start
The shift lever cannot be shifted from P even if you depress the brake
pedal

614 Alphabetical index
LX570_OM_OM60Q78U_(U) Care ................................................. 458, 461
Aluminum wheels ............................. 458
Exterior................................................... 458
Interior ...................................................... 461
Radar sensor ....................................... 366
Seat belts ................................................462
Cargo capacity....................................... 186
Cargo hooks ...........................................427
Cargo net hooks ....................................427
CD player
* Chains .......................................................383
Child restraint system............................ 57
Booster seat definition....................... 58
Booster seat installation.....................69
Convertible seat definition .............. 58
Convertible seat installation ............ 67
Front passenger occupant
classification system ........................ 50
Infant seat/convertible seat
definition................................................ 58
Infant seat/convertible seat
installation ..............................................65
Installing CRS with
LATCH system .................................. 63
Installing CRS with seat belt ............65
Installing CRS with top tether
strap.......................................................... 70
LATCH system...................................... 63 Child safety .................................................56
Airbag precautions................................ 41
Back door precautions..................... 127
Battery precautions ............... 483, 551
Child-protectors ................................... 118
Child restraint system......................... 57
How your child should wear
the seat belt .......................................... 34
Installing child restraints .................... 62
Moon roof precautions ...................... 171
Power window lock switch.............165
Power window precautions ........... 167
Rear door child-protectors ............. 118
Removed key battery
precautions .......................................504
Safety information................................. 56
Seat belt extender precautions ......37
Seat belt precautions .......................... 36
Seat heater precautions ................... 413
Child-protectors ..................................... 118
Cleaning ........................................ 458, 461
Aluminum wheels ..............................458
Exterior ...................................................458
Interior .......................................................461
Radar sensor........................................ 366
Seat belts................................................ 462
Climate concierge switch................. 398
Clock..........................................................432
Coat hooks ..............................................443
Compass ...................................................... 91
Condenser...............................................479
Cool box .................................................. 430C

616 Alphabetical index
LX570_OM_OM60Q78U_(U) Drive information .................................... 94
Driver’s seat belt reminder light ..... 522
Driver’s seat position memory ........... 151
Driving......................................................... 174
Break-in tips .......................................... 175
Correct posture..................................... 28
Driving in the rain................................ 175
Driving mode select switch ..........284
Off-road precautions...................... 386
Procedures .............................................174
Winter drive tips ................................ 382
Driving position memory...................... 151
Driving position memory .................. 151
Memory recall function.................... 152
Power easy access system .............. 151
DVD player
* Dynamic radar cruise control
with full-speed range
Function ..................................................269
Eco Driving Indicator Light ................. 87
EDR (Event data recorder) ...................10
Electronic key ........................................... 110
Battery-saving function .................... 134
If the electronic key does not
operate properly............................ 546
Replacing the battery ...................... 503 Emergency, in case of
If a warning buzzer sounds ..........520
If a warning light turns on ..............520
If a warning message is
displayed ............................................528
If the electronic key does not
operate properly ............................546
If the engine will not start ............... 544
If the vehicle battery is
discharged......................................... 549
If you have a flat tire .......................... 532
If you lose your keys.................... 112, 114
If you think something is
wrong.................................................... 518
If your vehicle becomes stuck.....555
If your vehicle has to be stopped
in an emergency................................ 511
If your vehicle needs to be
towed ..................................................... 512
If your vehicle overheats ................ 552
Emergency flashers ..............................510
E

619Alphabetical index
LX570_OM_OM60Q78U_(U) Hill-start assist control .........................377
Hood ...........................................................472
Hooks
Cargo hooks ........................................ 427
Cargo net hooks ................................ 427
Coat hooks ...........................................443
Retaining hooks (floor mat) ............. 26
Horn ............................................................ 158
I/M test ..................................................... 469
Identification
Engine ..................................................... 559
Vehicle ................................................... 559
Ignition switch (engine switch)........ 205
Ignition switch light
(engine switch light) ........................... 417
Illuminated entry system ......................419
Immobilizer system................................. 75
Indicators .................................................... 82
Initialization
Engine oil maintenance data....... 465
Items to initialize................................. 593
Power window ..................................... 166
Tire pressure warning system .... 488
Inside rear view mirror ........................ 160
Instrument panel light control ............ 89
Interior lights............................................. 417
Switch........................................................ 418
Intuitive parking assist......................... 287 Jack
Vehicle-equipped jack ................... 532
Jack handle ............................................. 532
Jam protection function
Moon roof ...............................................165
Power back door opener
and closer ............................................ 126
Power windows....................................169
Keyless entry
Smart access system with
push-button start .............................. 132
Wireless remote control................... 110
Keys .............................................................. 110
Battery-saving function .................... 134
Electronic key ......................................... 110
Engine switch ......................................205
If the electronic key does not
operate properly ............................546
If you lose your keys.................... 112, 114
Key number plate ................................. 110
Keyless entry ........................................... 110
Keys ............................................................. 110
Mechanical key...................................... 110
Replacing the battery ......................503
Warning buzzer................................... 133
Knee airbags ............................................. 38I J
K
* : Refer to
the “NAVIGATION SYSTEM OWNER’S MANUAL”.

622 Alphabetical index
LX570_OM_OM60Q78U_(U) Power steering
Fluid.......................................................... 564
Power windows .......................................165
Jam protection function ................... 165
Operation ............................................... 165
Window lock switch.......................... 165
Radar cruise control (dynamic
radar cruise control with
full-speed range) ............................... 269
Radiator .................................................... 479
Radio
* Rear air conditioning system ............ 410
Rear seat .................................................... 142
Adjustment ..............................................142
Folding the third seats ...................... 145
Tumbling the second seats ............ 143
Rear side marker lights ........................ 221
Light switch ............................................. 221
Replacing light bulbs ....................... 508
Rear turn signal lights ........................... 217
Replacing light bulbs ....................... 508
Turn signal lever ................................... 217
Rear view mirror
Inside rear view mirror ..................... 160
Outside rear view mirrors .............. 162
Rear view monitor system
*Rear window defogger ...................... 405
Rear window wiper.............................. 235
Refueling .................................................. 239
Capacity ................................................ 560
Fuel types .............................................. 560
Opening the fuel tank cap.............239 Remote touch/12.3-inch
display .................................................... 392
Replacing
Electronic key battery .....................503
Fuses ....................................................... 505
Light bulbs............................................ 508
Tires .......................................................... 532
Reporting safety defects for
U.S. owners ......................................... 596
Resetting the message indicating
maintenance is required ................ 465
Safety Connect ......................................452
Scheduled maintenance ....................464
Seat belts .................................................... 30
Adjusting the seat belt........................ 33
Automatic Locking Retractor ........ 34
Child restraint system
installation ............................................. 62
Cleaning and maintaining the
seat belt ............................................... 462
Emergency locking retractor ......... 34
How to wear your seat belt............. 28
How your child should wear
the seat belt .......................................... 34
Pregnant women, proper seat
belt use ................................................... 35
Reminder light and buzzer ........... 522
Seat belt extender ................................ 34
Seat belt pretensioners...................... 33
SRS warning light ..............................520R
S