Page 462 of 632

462
CT200h_OM_OM76197U_(U)7-1. Maintenance and care
Cleaning and protecting the vehicle exterior
●Working from top to bottom, liberally apply water to the vehicle body, wheel
wells and underside of the vehicle to remove any dirt and dust.
●Wash the vehicle body using a sponge or soft cloth, such as a chamois.
●For hard-to-remove marks, use car wash soap and rinse thoroughly with
water.
●Wipe away any water.
●Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface,
apply wax when the vehicle body is cool.
■Self-restoring coat
The vehicle body has a self-restoring coating that is resistant to small surface scratches
caused in a car wash etc.
●The coating lasts for 5 to 8 years from when the vehicle is delivered from the plant.
●The restoration time differs depending on the depth of the scratch and outside temper-
ature. The restoration time may become shor ter when the coating is warmed by apply-
ing warm water.
●Deep scratches caused by keys, coins, etc. cannot be restored.
●Do not use wax that contain abrasives.
■Automatic car washes
●Fold the mirrors before washing the vehicle. Start washing from the front of the vehicle.
Make sure to extend th e mirrors before driving.
●Brushes used in automatic car washes may scratch the vehicle surface and harm your
vehicle’s paint.
●Rear spoiler may not be washable in some automatic car washes. There may also be an
increased risk of damage to vehicle.
■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.
■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 sep-
arate from the vehicle while the vehicle is being washed. (Take care to ensure that the key
is not stolen.)
Perform the following to protect the ve hicle and maintain it in prime condi-
tion:
Page 488 of 632

488
CT200h_OM_OM76197U_(U)7-3. Do-it-yourself maintenance
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following precautions before recharging:
●If recharging with the 12-volt 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 12-volt battery.
■After recharging/reconnecting the 12-volt battery
●Unlocking the doors using the smart access
system with push-button start may not be
possible immediately after reconnecting the 12-volt battery. If this happens, use the
wireless remote control or the mech anical key to lock/unlock the doors.
●Start the hybrid system with the power switch in ACCESSORY mode. The hybrid sys-
tem may not start with the power switch turned off. However, the hybrid system will
operate normally from the second attempt.
●The power switch mode is recorded by the vehicle. If the 12-volt battery is reconnected,
the vehicle will return the power switch mode to the status it was in before the 12-volt
battery was disconnected. Make sure to turn off the power before disconnect the 12-
volt battery. Take extra care when connecting the 12-volt battery if the power switch
mode prior to discharge is unknown.
●Restart the hybrid system, depress the brake pedal, and confirm that it is possible to
shift into each shift position.
If the system will not start even after multiple attempts at all methods above, contact your
Lexus dealer.
WA R N I N G
■Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death or serious
injury, take the following precautions while working on or near the 12-volt battery:
●Do not cause sparks by touching the 12-volt battery terminals with tools.
●Do not smoke or light a match near the 12-volt battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when working near the 12-volt battery.
●Keep children away from the 12-volt battery.
■Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-volt battery in
a garage or closed room where there is insufficient ventilation.
■How to recharge the 12-volt battery
Only perform a slow charge (4.2 A or less). The 12-volt battery may explode if charged
at a quicker rate.
Page 504 of 632
504
CT200h_OM_OM76197U_(U)7-3. Do-it-yourself maintenance
Electronic key battery
●Flathead screwdriver
●Lithium battery CR1632
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, cover the
tip of the screwdriver with a rag.
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
Page 505 of 632

CT200h_OM_OM76197U_(U)
5057-3. Do-it-yourself maintenance
7
Maintenance and care
■Use a CR1632 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.
Page 521 of 632
521
CT200h_OM_OM76197U_(U)
8When trouble arises
8-1. Essential informationEmergency flashers .................. 522
If your vehicle has to be stopped in an emergency .... 523
8-2. Steps to take in an emergency If your vehicle needs to be towed ..................................... 524
If you think something is wrong ........................................... 528
If a warning light turns on or a warning buzzer
sounds.......................................... 529
If a warning message is displayed..................................... 536
If you have a flat tire................... 549
If the hybrid system will not start ...............................................558
If the electronic key does not operate properly .....................560
If the 12-volt battery is discharged ................................. 562
If your vehicle overheats ......... 566
If the vehicle becomes stuck ............................................. 570
Page 545 of 632

5458-2. Steps to take in an emergency
CT200h_OM_OM76197U_(U)
8
When trouble arises
Interior buzzerExteriorbuzzerWa r n i n g m e s s a g eDetails/Actions
Power was turned off due to the
automatic power off function.
Next time, start the hybrid sys-
tem and keep it on for approxi-
mately 5 minutes or more to
recharge the 12-volt battery.
Con-
tinuous The driver’s door was opened while
any shift position other than P was
selected without turning off the
power switch.
Shift the shift position to P.
Con-
tinuousCon-
tinuous
The electronic key was carried out-
side the vehicle and the driver’s door
was opened and closed while any
shift position other than P was
selected without turning off the
power switch.
Shift the shift position to P.
Bring the electronic key back
into the vehicle.
Once An attempt was made to start the
hybrid system without the electronic
key being present, or the electronic
key was not functioning normally.
Start the hybrid system with the
electronic key present.
An attempt was made to drive when
the regular key was not inside the
vehicle.
Confirm that the electronic key
is inside the vehicle.
(Flashes)
(Flashes)
(Flashes)
Page 546 of 632

5468-2. Steps to take in an emergency
CT200h_OM_OM76197U_(U)
Once3 times
The electronic key was carried out-
side the vehicle and a door other
than the driver’s door was opened
and closed while the power switch
was in a mode other than off.
Bring the electronic key back
into the vehicle.
The electronic key was carried out-
side the vehicle and the driver’s door
was opened and closed while the
shift position P was selected without
turning off the power switch.
Tu r n t h e p o w e r s w i t c h o f f .
Bring the electronic key back
into the vehicle.
Once
Sounds
once
for 5
sec-
ondsAn attempt was made to exit the
vehicle with the electronic key and
lock the doors without first turning
the power switch off.
Tu r n t h e p o w e r s w i t c h o f f a n d
lock the doors again.
Once
An attempt was made to turn the
power switch off when the shift posi-
tion was not in P.
To turn off the hybrid system,
first shift the shift position to P
and then turn the power switch
off.
Interior
buzzerExteriorbuzzerWa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Displayed alternately)
(Flashes)
(Flashes)
Page 547 of 632

5478-2. Steps to take in an emergency
CT200h_OM_OM76197U_(U)
8
When trouble arises
Once
Sounds
once
for 5
sec-
onds
• An attempt was made to lock the doors using the smart access sys-
tem with push-button start while
the electronic key was still inside
the vehicle.
• An attempt was made to lock either front door by opening a
door and putting the inside lock
button into the lock position, then
closing the door with the elec-
tronic key still inside the vehicle.
Retrieve the electronic key
from the vehicle and lock the
doors again.
Once
• When the doors were unlocked
with the mechanical key and then
the power switch was pressed, the
electronic key could not be
detected in the vehicle.
• The electronic key could not be
detected in the vehicle even after
the power switch was pressed two
consecutive times.
Touch the electronic key to the
power switch while depressing
the brake pedal.
Once
The driver’s door was opened and
closed with the power switch turned
off and then the power switch was
put in ACCESSORY mode twice
without the hybrid system being
started.
Press the power switch while
depressing the brake pedal.
During a hybrid system starting pro-
cedure in the event that the elec-
tronic key was not functioning
properly ( P. 561), the power
switch was touched with the elec-
tronic key.
Press the power switch within 10
seconds of the buzzer sounding.
Interior
buzzerExteriorbuzzerWa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Flashes)
(Flashes)