key battery LEXUS LX570 2020 Owner's Manual

508
LX570_OM_OM60R61U_(U)6-3. Do-it-yourself maintenance
■Use a CR2032 lithium battery
●Batteries can be purc
hased at your Lexus dealer, loca l electrical appliance shops or
camera stores.
●Replace only with the same or equivalent type recommended by the manufacturer.
●Dispose of used batteries according to the local laws.
■When the card key battery needs to be replaced
The battery for the card key is available only at Lexus dealers. Your Lexus dealer can
replace the battery for you.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart access system with push-button start and wireless remote control will not
function properly.
●The operational rang e will be reduced.
WARNING
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking. Keep away
from children. Failure to do so coul d result in death or serious injury.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other co mponent inside the remote control.
●Do not bend either of the battery terminals.

513
LX570_OM_OM60R61U_(U)
7When trouble arises
7-1. Essential informationEmergency flashers ................... 514
If your vehicle has to be stopped in an emergency..... 515
If the vehicle is trapped in rising water ............................ 516
7-2. Steps to take in an emergency If your vehicle needs to be towed..................................517
If you think something is wrong ........................................... 523
Fuel pump shut off system ...... 524
If a warning light turns on or a warning buzzer
sounds.......................................... 525
If a warning message is displayed.....................................533
If you have a flat tire .................. 537
If the engine will not start ........ 549
If the electronic key does not operate properly .............. 551
If the vehicle battery is discharged .................................554
If your vehicle overheats ......... 557
If the vehicle becomes stuck .............................................560

551
LX570_OM_OM60R61U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If the electronic key does not operate properly
Use the mechanical key (P. 117) 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. 140) 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

5527-2. Steps to take in an emergency
LX570_OM_OM60R61U_(U)
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. 507)
■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. 212)
■Alarm
Using the mechanical key to lock the 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. 82)
■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. 586)
●Check if battery-saving mode is set. If it is set, cancel the function. (P. 140)
Starting the engine
1
2
3
4
3

554
LX570_OM_OM60R61U_(U)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. 84)
Open the hood. Remove the engine compartment cover. ( P. 478)
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

614What to do if... (Troubleshooting)
LX570_OM_OM60R61U_(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. 118)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( P. 120)
●Is the electronic key battery weak or depleted? ( P. 507)
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (P. 212)
●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. 140)
●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. 124)
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

615What to do if... (Troubleshooting)
LX570_OM_OM60R61U_(U)
●Did you press the engine switch while firmly depressing the brake pedal?
( P. 211)
●Is the shift lever in P? ( P. 211)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 139)
●Is the steering wheel unlocked? ( P. 214)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. (P. 552)
●Is the battery discharged? ( P. 554)
●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. 222)
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

620Alphabetical index
LX570_OM_OM60R61U_(U)
Care ................................................ 462, 465Aluminum wheels ..............................462
Exterior....................................................462
Interior .................................................... 465
Radar sensor ........................................ 373
Seat belts ............................................... 466
Cargo capacity........................................192
Cargo hooks .......................................... 435
Cargo net hooks ................................... 435
CD player
*
Chains ....................................................... 390
Child restraint system............................ 56 Booster seat definition........................ 57
Booster seat installation.....................68
Convertible seat definition ............... 57
Convertible seat installation ............66
Front passenger occupant classification system ......................... 49
Infant seat/convertible seat definition................................................. 57
Infant seat/convertible seat installation .............................................. 64
Installing CRS with LATCH system .................................. 62
Installing CRS with seat belt ............ 64
Installing CRS with top tether strap..........................................................69
LATCH system...................................... 62 Child safety ................................................ 55
Airbag precautions................................ 41
Back door precautions..................... 133
Battery precautions ............. 487, 556
Child-protectors .................................. 124
Child restraint system......................... 56
How your child should wear the seat belt .......................................... 34
Installing child restraints ...................... 61
Moon roof precautions .................... 177
Power window lock switch............... 171
Power window precautions ........... 173
Rear door child-protectors ............ 124
Removed key battery precautions ...................................... 508
Safety information................................. 55
Seat belt extender precautions ......37
Seat belt precautions .......................... 36
Seat heater precautions ................... 421
Child-protectors .................................... 124
Cleaning ....................................... 462, 465 Aluminum wheels .............................. 462
Exterior ................................................... 462
Interior ..................................................... 465
Radar sensor........................................ 373
Seat belts................................................ 466
Climate concierge switch................. 406
Clock......................................................... 440
Coat hooks ..............................................452
Compass .....................................................96
Condenser.............................................. 483
Cool box .................................................. 438
C

622Alphabetical index
LX570_OM_OM60R61U_(U)
Drive information .................................... 99
Driver’s seat belt reminder light ..... 527
Driver’s seat position memory ..........157
Driving........................................................ 180 Break-in tips ............................................ 181
Correct posture..................................... 28
Driving in the rain.................................. 181
Driving mode select switch ........... 291
Off-road precautions.......................393
Procedures ............................................180
Winter drive tips ................................ 389
Driving position memory..................... 157 Driving position memory ................ 157
Memory recall function.................... 158
Power easy access system ............ 157
DVD player
*
Dynamic radar cruise control with full-speed range Function .................................................. 276
Eco Driving Indicator Light ...................91
EDR (Event data recorder) ...................10
Electronic key ........................................... 116 Battery-saving function .................... 140
If the electronic key does not operate properly.............................. 551
Replacing the battery ...................... 507 Emergency, in case of
If a warning buzzer sounds .......... 525
If a warning light turns on .............. 525
If a warning message is displayed ............................................ 533
If the electronic key does not operate properly ............................. 551
If the engine will not start ............... 549
If the vehicle battery is discharged.........................................554
If the vehicle is trapped in rising water ..........................................516
If you have a flat tire .......................... 537
If you lose your keys..................118, 120
If you think something is wrong................................................... 523
If your vehicle becomes stuck.... 560
If your vehicle has to be stopped in an emergency.............................. 515
If your vehicle needs to be towed ..................................................... 517
If your vehicle overheats ................ 557
Emergency flashers .............................. 514
E

625Alphabetical index
LX570_OM_OM60R61U_(U)
Hill-start assist control ........................ 384
Hood .......................................................... 476
HooksCargo hooks ........................................435
Cargo net hooks ................................435
Coat hooks ...........................................452
Retaining hooks (floor mat) ............. 26
Horn .............................................................164
I/M test ..................................................... 473
Identification Engine ..................................................... 565
Vehicle ................................................... 565
Ignition switch (engine switch)........... 211
Ignition switch light (engine switch light) ......................... 425
Illuminated entry system .....................427
Immobilizer system................................. 80
Indicators .................................................... 86
Initialization Engine oil maintenance data....... 469
Items to initialize................................. 600
Power window ...................................... 172
Tire pressure warning system .....492
Inside rear view mirror .........................166
Instrument panel light control ............ 94
Interior lights........................................... 425 Switch.......................................................426
Intuitive parking assist......................... 294 Jack
Vehicle-equipped jack ................... 537
Jack handle ..............................................537
Jam protection function Moon roof ................................................. 171
Power back door opener and closer ............................................ 132
Power windows.................................... 175
Keyless entry Smart access system with push-button start ............................. 138
Wireless remote control................... 116
Keys .............................................................. 116 Battery-saving function ....................140
Electronic key ......................................... 116
Engine switch ..........................................211
If the electronic key does not operate properly ............................. 551
If you lose your keys..................118, 120
Key number plate ................................. 116
Keyless entry ........................................... 116
Keys ............................................................. 116
Mechanical key...................................... 116
Replacing the battery ...................... 507
Warning buzzer...................................139
Knee airbags ............................................. 38
I
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*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.