Battery LEXUS RX200T 2017 Repair Manual

6107-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
WARNING
■Chemicals in the battery
Battery contains poisonous and corrosive sulfuric acid and may produce hydrogen gas which is flammable and explosive. To reduce th e risk of death or serious injury, take the
following precautions while working on or near the battery:
●Do not cause sparks by touching the battery terminals with tools.
●Do not smoke or light a match near the battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when working near the battery.
●Keep children away from the battery.
■Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a garage or
closed room where there is insufficient ventilation.
■Emergency measures regarding electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immediate medical attention. If possible, continue to apply water with a sponge or cloth while traveling tothe nearest medical facility.
●If electrolyte gets on your skinWash the affected area thoroughly. If you f eel pain or burning, get medical attention immediately.
●If electrolyte gets on your clothesIt can soak through clothing on to your sk in. Immediately take off the clothing and fol- low the procedure above if necessary.
●If you accidentally swallow electrolyteDrink a large quantity of water or milk. Get emergency medical attention immedi-ately.
■When there is insufficient battery fluid
Do not use if there is insufficient fluid in th e battery. There is a possible danger that the battery may explode.
NOTICE
■When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all accessories are turned off.
■When adding distilled water
Avoid overfilling. Water spilled during battery recharging may cause corrosion.

6387-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
●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 atape.
Remove the battery cover.
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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6397-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
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 the local laws.
■When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at your Lexus dealer. 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.
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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 could result in death or serious injury.
■Certification for the smart entry & start system
CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
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 component inside the remote control.
●Do not bend either of the battery terminals.

655
8When trouble arises
RX350/RX200t_EE_OM48F32E
8-1. Essential information
Emergency flashers ..................656
If your vehicle has
to be stopped
in an emergency ...................... 657
8-2. Steps to take
in an emergency
If your vehicle needs
to be towed................................658
If you think something
is wrong....................................... 664
Fuel pump shut off system ...... 665
If a warning light turns
on or a warning buzzer
sounds.......................................... 666
If a warning message
is displayed ................................ 673
If you have a flat tire
(vehicles with
a spare tire)................................ 679
If you have a flat tire
(vehicles without
a spare tire)................................ 693
If the engine will not start ........708
If the electronic key does
not operate properly ...............710
If the vehicle battery
is discharged............................... 714
If your vehicle overheats .......... 718
If the vehicle becomes
stuck ............................................. 722

656
RX350/RX200t_EE_OM48F32E
8-1. Essential information
Press the switch.
All the turn signal lights will flash. To turn
them off, press the switch once again.
■Emergency flashers
If the emergency flashers are used for a long time while the engine is not operating, the
battery may discharge.
Emergency flashers
The emergency flashers are used to wa rn other drivers when the vehicle has
to be stopped in the road due to a breakdown, etc.

6708-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sensor may cause the warning light to flash and the warning buzzer to sound even if a passen-ger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the warn-ing light may not operate properly.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficien t or the voltage temporarily drops, the electric power steering system warning lig ht may come on and the warning buzzer may sound.
■If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes completely empty. If the fuel tank is empty, refuel the vehicle immediately. The malfunction indicator lamp
will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus dealer or repairer, or another duly qualified and eq uipped professional as soon as possible.
■When the tire pressure warning light comes on
Inspect the tires to check if a tire is punctured.
If a tire is punctured: P. 679, 693
If none of the tires are punctured: Turn the engine switch off then turn it to IGNITION ON mode. Check if the tire pressurewarning light comes on or blinks.
If the tire pressure warning light comes on
After the temperature of the tires has lowere d sufficiently, check the inflation pressure of each tire and adjust them to the specified level.
If the warning light does not turn off even after several minutes have elapsed, check that the inflation pressure of each tire is at the specified level and perform initialization. ( P. 616)
If the warning light does not turn off severa l minutes after the initialization has been per- formed, have the vehicle inspected by any authorized Lexus dealer or repairer, or another duly qualified and equipped professional immediately.
If the tire pressure warning light blinks for 1 minute then stays on
There may be a malfunction in the tire pressure warning system. Have the vehicle inspected by any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional immediately.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air leaks or tire inflation pressure changes caused by temperature. In this case, adjusting the tire inflation pressure will turn off th e warning light (after a few minutes).
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6768-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
Take the appropriate actions as instructed in the message displayed.
If any of the following messages are displayed, also refer to this Owner’s Manual.
■If “Shift to P Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the
engine switch off with the shift lever in any position other than P.
Shift the shift lever to P.
■If “Power Turned Off to Save Battery” is displayed
This message is displayed when the po wer was cut off due to the automatic
power off function.
The next time the engine is started, increase the engine speed slightly and
maintain it at that speed for approximately 5 minutes to recharge the battery.
■If “AWD System Overheated Switch ing to 2WD Mode” or “AWD System
Overheated 2WD Mode Engaged” is displayed (AWD models)
This message may be displayed when dr iving under extremely high load con-
ditions.
Drive the vehicle at low speeds or stop the vehicle in a safe place with the
engine running until the message is cleared.
If the message is not cleared, have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
■If “A New Key has been Registered Cont act Your Dealer for Details” is dis-
played
This message will be displayed each time the driver’s door is opened when the
doors are unlocked from the outside for approximately one week after a new
electronic key has been registered.
If this message is displayed but you have not had a new electronic key regis-
tered, ask any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional. to check if an unknown electronic key (other than
those in your possession) has been registered.
Other messages displayed on the multi-information display

6788-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
■System warning lights
The master warning light does not come on or flash in the following cases. Instead, a sep- arate system warning light will come on al ong with a message shown on the multi-infor- mation display.
●“Antilock Brake System Malfunction Visit Your Dealer”:
The ABS warning light comes on. ( P. 667)
●“Charging System Malfunction See Owner’s Manual” (F SPORT models):
The charging system warning light comes on. ( P. 666)
■Warning buzzer
 P. 671
NOTICE
■“High Power Consumption Partial Limit On AC/Heater Operation” is frequently
shown
There is a possible malfunction relating to the charging system or the battery may be deteriorating. Have the vehicle inspected by any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
Vehicles with a Heated Windshield Defroste r: This message will be displayed when the Heated Windshield Defroster is oper ating. This is not a malfunction.

7088-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
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. 246)
●There may be a malfunction in the engine immobilizer system. (P. 77)
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. 714)
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. 709)
If the engine will not start
If the engine will not start even though correct starting procedures are being
followed ( P. 246), 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

7098-2. Steps to take in an emergency
8
When trouble arises
RX350/RX200t_EE_OM48F32E
One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
●The battery may be discharged. (P. 714)
●There may be a malfunction in the steering lock system.
Contact any authorized Lexus dealer or repairer, or another duly qualified and equipped professional if the problem cannot be repaired, or if repair procedures are unknown.
When the engine does not start, the foll owing steps can be used as an interim
measure to start the engine if the engine switch is functioning normally.
Turn the engine switch to IGNITION ON mode and check that the parking
brake is set. ( P. 247, 259)
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal-
functioning. Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
The starter motor does not turn over , the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function
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