2017 LEXUS RC200T key battery

5077-1. Maintenance and care
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Maintenance and care
RC200t_RC F_EE(OM24728E)
■Automatic car washes (vehicles with CFRP parts)
Do not use automatic car washes as they may scratch the CFRP parts and damage the paint.
■High pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the windows.
●Before using the car wash, check that the fuel filler door on your vehicle is closed prop-
erly.
■When using a car wash
If the door handle becomes wet while the electronic key is within the effective range, the
door may lock and unlock repeatedly. In that case, follow the following correction proce- dures to wash the vehicle:
●Place the key in a position 2 m (6 ft.) or more separate from the vehicle while the vehi-
cle is being washed. (Take care to ensure that the key is not stolen.)
●Set the electronic key to battery-saving mode to disable the smart entry & start system. ( P. 177)
■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 a long distance in hot weather.
●Wash detergent from the wheels immediately after use.
■When cleaning the painted brake calipers (if equipped)
●If a detergent is to be used to clean the painted brake calipers, use a neutral detergent.
Do not use hard brushes or abrasive cl eaners as they may damage the paint.
●Do not use detergent on the brake calipers when they are hot.
●Wash detergent from the brake calipers immediately after use.
■Bumpers
Do not scrub with abrasive cleaners.
■Side windows water-repellent coating
●The following precautions can extend the effectiveness of the water-repellent coating.
• Remove any dirt, etc. from the side windows regularly.
• Do not allow dirt and dust to accumulate on the windows for a long period. Clean the windows with a soft, damp 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 any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.

5327-3. Do-it-yourself maintenance
RC200t_RC F_EE(OM24728E)
■Before recharging
When recharging, the battery produces hydr ogen gas which is flammable and explosive. Therefore, observe the following 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 procedure below to initialize the system.
Shift the shift lever to P.
Open and close either door.
Restart the engine.
●Unlocking the doors using the smart entry & start system may not be possible immedi-
ately 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 disconnected and
reconnected, the vehicle will return the engi ne switch mode to the status it was in before the battery was disconnected. Make sure to turn off the engine before discon-necting the battery. Take extra care when connecting the battery if the engine switch
mode prior to the battery being disconnected is unknown.
If the engine will not start even after multip le attempts at all the methods contact any authorized Lexus dealer or repairer, or anot her duly qualified and equipped professional.
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5637-3. Do-it-yourself maintenance
7
Maintenance and care
RC200t_RC F_EE(OM24728E)
●Flathead screwdriver
●Small flathead screwdriver
●Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, wrap the
tip of the screwdriver with tape.
Remove the battery cover.
To prevent damage to the key, wrap the
tip of the screwdriver with tape.
Electronic key battery
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
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5647-3. Do-it-yourself maintenance
RC200t_RC F_EE(OM24728E)
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
■Use a CR2032 lithium battery
●Batteries can be purchased at any authorized Lexus dealer or repairer, or another duly qualified and equipped professional, 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 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 entry & start system and wireless remote control will not function properly.
●The operational range will be reduced.
■Certification for the key battery
●Replace only with the same or equivalent type recommended by the manufacturer.
●Dispose of used batteries according to the local laws.
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579
8When trouble arises
RC200t_RC F_EE(OM24728E)
8-1. Essential information
Emergency flashers ................. 580
If your vehicle has to be
stopped in an
emergency.................................. 581
8-2. Steps to take in an
emergency
If your vehicle needs to be
towed ...........................................582
If you think something is
wrong...........................................589
Fuel pump shut off
system ..........................................590
If a warning light turns
on or a warning buzzer
sounds........................................... 591
If a warning message is
displayed .................................... 597
If you have a flat tire
(vehicles with a
spare tire) .................................... 619
If you have a flat tire
(vehicles with an
emergency tire puncture
repair kit) .................................... 633
If the engine will not start ........ 648
If the electronic key does
not operate properly .............650
If the vehicle battery is
discharged ................................. 654
If your vehicle overheats ......... 659
If the vehicle becomes
stuck ............................................. 664

6158-2. Steps to take in an emergency
8
When trouble arises
RC200t_RC F_EE(OM24728E)
OnceCon- tinuous
An attempt was made to lock the
doors using the smart entry & start system while the electronic key wasstill inside the vehicle.
 Retrieve the electronic key from the vehicle and lock thedoors again.
An attempt was made to lock either
door by opening a door and putting the inside lock button into the lockposition, then closing the door by
pulling on the outside door handle with the electronic key still inside thevehicle.
 Retrieve the electronic key from the vehicle and lock thedoors again.
An attempt was made to lock the
doors other than using the smart entry & start system while the elec-tronic key was still inside the vehicle.
 Retrieve the electronic key from the vehicle and lock the
doors again.
Once
The electronic key has a low battery.
 Replace the electronic key bat- tery. ( P. 563)
Once
The steering lock could not be released within 3 seconds of the
engine switch being pressed.  Press the engine switch while depressing the brake pedal and
moving the steering wheel left and right.
InteriorbuzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)
(Flashes)

6488-2. Steps to take in an emergency
RC200t_RC F_EE(OM24728E)
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. 247)
●There may be a malfunction in the engine immobilizer system.
( P. 92)
One of the following may be the cause of the problem:
●The battery may be discharged. ( P. 654)
●The battery terminal connections may be loose or corroded.
The engine starting system may be malfunctioning 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. 649)
If the engine will not start
If the engine will not start even though correct starting procedures are being
followed ( P. 247), consider each of the following points:
The engine will not start even though the starter motor operates nor-
mally.
The starter motor turns over slowly, the interior lights and headlights
are dim, or the horn does not so und or sounds at a low volume.
The starter motor does not turn over

6508-2. Steps to take in an emergency
RC200t_RC F_EE(OM24728E)
Use the mechanical key (P. 159) in order to perform the following operations:
■Unlocking the door
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 the electronic key does not operate properly
If communication between the electronic key and vehicle is interrupted ( P.
177) or the electronic key cannot be us ed because the battery is depleted, the
smart entry & start system and wireless remote control cannot be used. In
such cases, the doors and trunk can be opened and the engine can be started
by following the procedure below.
Locking and unlocking the doors and opening the trunk
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