key battery LEXUS NX200T 2016 User Guide

1954-2. Driving procedures
4
Driving
NX200t_OM_USA_OM78081U
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNITION ON
mode (the engine is not running) for more than an hour with the shift lever in P, the engine
switch will automatically turn off. However, this function cannot entirely prevent battery
discharge. Do not leave the vehicle with the engine switch in ACCESSORY or IGNI-
TION ON mode for long periods of ti me when the engine is not running.
■Electronic key battery depletion
P. 111
■Conditions affe cting operation
 P. 1 3 3
■Note for the entry function
P. 1 3 4
■If the engine does not start
●The engine immobilizer system may not have been deactivated. ( P. 7 5 )
Contact your Lexus dealer.
●Check that the shift lever is securely set in P. The engine may not start if the shift lever is
displaced out of P. “To Start Vehicle, Put Shift Lever into P” will be displayed on the
multi-information display.
■Steering lock
After turning the engine switch off and opening and closing the doors, the steering wheel
will be locked due to the stee ring lock function. Operating the engine switch again auto-
matically cancels the steering lock.
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from over heating, operation of the motor may be sus-
pended if the engine is turned on and off repeat edly in a short period of time. In this case,
refrain from running the engine. After about 10 seconds, the steering lock motor will
resume functioning.
■When “Smart Access System Malfunction See Owner’s Manual” is displayed on the
multi-information display
The system may be malfunctioning. Have the vehicle inspected by your Lexus dealer
immediately.
■If the electronic key battery is depleted
 P. 5 1 8
A message will be displayed on the multi-infor-
mation display.
Check that the shift lever is in P. Press the
engine switch while turning the steering wheel
left and right.

4356-2. Using the interior lights
6
Interior features
NX200t_OM_USA_OM78081U
Tu r n s t h e l i g h t o n /o f f
The rear interior light is also turned on/
off by the front interior light operations.
If the light is turned on by front interior
light operation, the rear interior light
cannot turn off by pressing the switch.
●Illuminated entry system: The lights automatically turn on/off according to engine
switch mode, the presence of the electronic key, whether the doors are locked/
unlocked, and whether the doors are opened/closed.
●If the interior lights remain on when the engine switch is turned off, the lights will go off
automatically after 20 minutes.
●In the following cases, the front interior li ghts and personal lights may not respond as
normal.
• When water, dirt, etc., have adhered to the lens surface
• When operated with a wet hand
• When wearing gloves, etc.
●Settings (e.g. the time elapsed before the lights turn off) can be changed.
(Customizable features: P. 6 1 8 )
Rear interior light
NOTICE
●Never remove the lens for the front interior light and personal lights. Otherwise, the
lights will be damaged. If the lens need to remove, contact your Lexus dealer.
●To prevent battery discharge, do not leav e the lights on longer than necessary when
the engine is off.

471
7Maintenance and care
NX200t_OM_USA_OM78081U
7-1. Maintenance and careCleaning and protecting the vehicle exterior..................472
Cleaning and protecting the vehicle interior ................... 476
7-2. Maintenance Maintenance requirements............................. 479
General maintena nce .............. 482
Emission inspection and maintenance (I/M)
programs ....................................485
7-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................486
Hood .............................................. 488
Positioning a floor jack .............489
Engine compartment ............... 490
Tires ..................................................502
Tire inflation pressure .................. 511
Wheels ............................................ 514
Air conditioning filter ................ 516
Electronic key battery ............... 518
Checking and replacing fuses .............................................. 520
Light bulbs..................................... 523

4737-1. Maintenance and care
7
Maintenance and care
NX200t_OM_USA_OM78081U
■Note for a smart access system with push-button start
●If the door handle becomes wet while the electronic key is within the effective range,
the door may lock and unlock repeatedly. Place the key in a position 6 ft. (2 m) or more
separate from the vehicle while the vehicle is being washed. (Take care to ensure that
the key is not stolen.)
●If the electronic key is insi de the vehicle and a door handle becomes wet during a car
wash, a buzzer will sound outside the vehicle. To turn off the alarm, lock all the doors.
●Set the electronic key to battery-saving mode to disable the smart access system with
push-button start. ( P. 1 3 2 )
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent. Do not use hard brushes or
abrasive cleaners. Do not use strong or harsh chemical cleaners.
Use the same mild detergent and wax as used on the paint.
●Do not use detergent on the wheels when they are hot, for example after driving for
long distance in the hot weather.
●Wash detergent from the wheels immediately after use.
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-repellent coatin g (vehicles with water-repellent coating)
●The following precautions can extend the effectiveness of the water-repellent coating.
• Remove any dirt, etc. from the front side windows regularly.
• Do not allow dirt and dust to accumulate on the windows for a long period.
Clean the windows with a soft, da mp cloth as soon as possible.
• Do not use wax or glass cleaners that co ntain abrasives when cleaning the windows.
• Do not use any metallic objects to remove condensation build up.
●When the water-repellent performance has become insufficient, the coating can be
repaired. Contact your Lexus dealer.

4997-3. Do-it-yourself maintenance
7
Maintenance and care
NX200t_OM_USA_OM78081U
Check the battery as follows.
■Battery exterior
Make sure that the battery terminals are not corroded and that there are no
loose connections, cracks, or loose clamps.Te r m i n a l s
Hold-down clamp
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and explosive.
Therefore, observe the following precautions before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect the ground
cable.
●Make sure the power switch on the charger is off when connecting and disconnecting
the charger cables to the battery.
■After recharging/reconnecting the battery
●The engine may not start. Follow the pr ocedure below to initialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.
●Unlocking the doors using the smart access system with push-button start may not be
possible immediately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.
●Start the engine with the engine switch in ACCESSORY mode. The engine may not
start with the engine switch turned off. However, the engine will operate normally from
the second attempt.
●The engine switch mode is recorded by the vehicle. If the battery is reconnected, the
vehicle will return the engine switch mode to the status it was in before the battery was
disconnected. Make sure to turn off the power before disconnect the battery. Take
extra care when connecting the battery if the engine switch mode prior to discharge is
unknown.
If the system will not start even after multiple attempts at all methods above, contact your
Lexus dealer.
Battery
1
2
1
2
3

5187-3. Do-it-yourself maintenance
NX200t_OM_USA_OM78081U
Electronic key battery
●Flathead screwdriver
●Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, cover the
tip of the flathead screwdriver with a
tape.
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2
3

5197-3. Do-it-yourself maintenance
7
Maintenance and care
NX200t_OM_USA_OM78081U
■Use a CR2032 lithium battery
●Batteries can be purchased at your Lexus dealer, local 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 (if equipped)
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 range will be reduced.
WA R N I N G
■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 could result in death or serious injury.
NOTICE
■For normal operation afte r 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 component inside the remote control.
●Do not bend either of the battery terminals.

539
8When trouble arises
NX200t_OM_USA_OM78081U
8-1. Essential informationEmergency flashers ..................540
If your vehicle has to be stopped in an
emergency.................................. 541
8-2. Steps to take in an emergency If your vehicle needs to be towed ..................................... 542
If you think something is wrong ...........................................548
Fuel pump shut off system ...... 549
If a warning light turns on or a warning buzzer
sounds..........................................550
If a warning message is displayed..................................... 557
If you have a flat tire...................560
If the engine will not start ........ 573
If the shift lever cannot be shifted from P............................ 575
If the electronic key does not operate properly ...................... 576
If the vehicle battery is discharged ................................ 580
If your vehicle overheats .........584
If the vehicle becomes stuck ............................................. 587

573
8
When trouble arises
8-2. Steps to take in an emergency
NX200t_OM_USA_OM78081U
If the engine will not start
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●The engine may be flooded.
Try to restart the engine again following correct starting procedures.
( P. 1 9 3 )
●There may be a malfunction in the engine immobilizer system. ( P. 7 5 )
One of the following may be the cause of the problem:
●The battery terminal connections may be loose or corroded.
●The battery may be discharged. ( P. 5 8 0 )
The engine starting system may be malfun ctioning due to an electrical problem
such as electronic key battery depletion or a blown fuse. However, an interim
measure is available to start the engine. ( P. 5 74 )
If the engine will not start even though correct starting procedures are being
followed ( P. 193), consider each of the following points:
The engine will not start even thoug h the starter motor operates nor-
mally.
The starter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
The starter motor does not turn over

5768-2. Steps to take in an emergency
NX200t_OM_USA_OM78081U
If the electronic key do es not operate properly
■Unlocking the door
Use the mechanical key ( P. 109) to perform the following operations.
Insert the mechanical key while
pulling on the driver’s door han-
dle.
Unlocking the door.
Remove the key, return the handle, and then pull the handle again.
If communication between the electron ic key and vehicle is interrupted
(  P. 133) or the electronic key cannot 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
1
2
3