2015 LEXUS LX570 change key battery

471-2. Opening, closing and locking the doors
1
Before driving
LX570_OM_OM60L96U_(U) ■
If the smart access system with push-button start does not operate properly ●
Locking and unlocking the doors: Use the mechanical key. (  P. 872)●
Starting the engine:  P. 873■
When the electronic key battery is fully depleted
 P. 784■
Customization
Settings (e.g. smart access system with push-button start) can be changed.
(Customizable features  P. 912)■
Certification for the smart access system with push-button start
For vehicles sold in the U.S.A ., Hawaii, Guam and Puerto Rico
For vehicles sold in Canada

501-2. Opening, closing and locking the doors
LX570_OM_OM60L96U_(U) ■
Operation signals ●
Doors: A buzzer sounds and the emergenc y flashers flash to indicate that the
doors have been locked/unlocked. (Locked: Once; Unlocked: Twice) ●
Windows and moon roof: A buzzer sounds to indicate that the windows and
moon roof are opening.■
Operating conditions
The wireless remote control will not operate when the “ENGINE START STOP”
switch is in any position other than OFF. ■
Door lock buzzer
If a door is not fully closed, a buzzer soun ds continuously for 5 seconds if an attempt
to lock the door is made. Fully close the d oor to stop the buzzer, and lock the vehi-
cle once more. ■
Power back door operation
The power back door can be opened while the vehicle is locked. (one motion) ■
Alarm
Using the wireless remote control to lock the door will set the alarm system. ■
Electronic key battery depletion
 P. 42■
Security feature
 P. 44■
If the wireless remote control does not operate properly ●
Locking and unlocking the doors: Use the mechanical key. (  P. 872)●
Starting the engine:  P. 873■
When the electronic key battery is fully depleted
 P. 784■
Conditions affecting operation
 P. 40■
Customization
Settings (e.g. unlocking fu nction) can be changed.
(Customizable features  P. 912)

1792-1. Driving procedures
2
When driving
LX570_OM_OM60L96U_(U) ■
Operation of the “ENG INE START STOP” switch
When operating the “ENGINE START STOP ” switch, one short, firm press is
enough. If the switch is pressed improp erly, the engine may not start or the
“ENGINE START STOP” switch mode may not change. It is not necessary to press
and hold the switch. ■
When the steering lock cannot be released
■
If the engine does not start
The engine immobilizer system may not have been deactivated. (  P. 119)
Contact your Lexus dealer. ■
When the “ENGINE START STOP” switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
dealer immediately. ■
Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes with the shift
lever in P, the “ENGINE START STOP” switch will automatically turn off. However,
this function cannot entirely prevent battery discharge. Do not leave the vehicle
with the “ENGINE START STOP” switch in ACCESSORY mode for long periods
of time when the engine is not running. ■
Electronic key battery depletion
 P. 42■
When the electronic key battery is discharged
 P. 872■
Conditions affecting operation
 P. 40 The green indicator light on the “ENGINE
START STOP” switch will flash and a mes-
sage will be shown on the multi-information
display. Press the “ENGINE START STOP”
switch again while turning the steering wheel
left and right.

5
When trouble arises
8755-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) ■
Stopping the engine
Shift the shift lever to “P ” and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine. ■
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. 784)■
Changing “ENGINE START STOP” switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
“ENGINE START STOP” switch.
The engine does not start and modes will be changed each time the switch is
pressed. (  P. 178)■
Alarm
Using the mechanical key to lock th e 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. (  P. 121)
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 passenger s to get caught in power window and moon roof.