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CT200h_OM_OM76197U_(U)7-3. Do-it-yourself maintenance
■Situations in which the tire pressure warning system may not operate properly
●In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• Lock nuts are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extremely higher than the specified level.
• If wheel without the tire pressure warning valve and transmitter is used.
• If the ID code on the tire pressure warning valves and transmitters is not registered in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-
port or other facility th at generates strong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless
communication device
●When the vehicle is parked, the time taken for the warning to start or go off could be
extended.
●When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function.
■The initialization operation
●Make sure to carry out initialization af ter adjusting the tire inflation pressure.
Also, make sure the tires are cold before carry ing out initialization or tire inflation pres-
sure adjustment.
●If you have accidentally turned the power swit ch off during initialization, it is not neces-
sary to press the reset switch again as init ialization will restart automatically when the
power switch has been turned to ON mode for the next time.
●If you accidentally press the reset switch when initialization is not necessary, adjust the
tire inflation pressure to the specified level when the tires are co ld, and conduct initial-
ization again.
■When initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in the following cases, the set-
tings have not been recorded and the system will not operate properly. If repeated
attempts to record tire inflation pressure settings are unsuccessful, have the vehicle
inspected by your Lexus dealer.
●When operating the tire pressure warning reset switch, the tire pressure warning light
does not blink 3 times.
●After carrying out the initialization procedure, the tire pressure warning light blinks for 1
minute then stays on after driving for 20 minutes.
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CT200h_OM_OM76197U_(U)7-3. Do-it-yourself maintenance
7
Maintenance and care
Light bulbs
Check the wattage of the light bulb to be replaced. (
P. 5 7 9 )
P. 4 7 9
■Front
Vehicles with halogen headlights
You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems diffi-
cult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
Preparing for light bulb replacement
Removing the engine compartment cover
Bulb locations
Front turn signal light
Halogen fog light (if equipped) Headlight low beam
Headlight high beam1
2
3
4
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CT200h_OM_OM76197U_(U)7-3. Do-it-yourself maintenance
Vehicles with LED headlights
Headlight high beam
Front turn signal light
■RearBack-up light
Rear turn signal light
1
2
1
2
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CT200h_OM_OM76197U_(U)7-3. Do-it-yourself maintenance
Reinstall the fender liner with 2
screws, a bolt and clip.
■Front turn signal lights (halogen headlights)
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■Front turn signal lights (LED headlights)
Left side
Remove the power control unit
cover.
6
1
2
1
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CT200h_OM_OM76197U_(U)7-3. Do-it-yourself maintenance
■Rear turn signal lights
Open the back door and remove
the covers and bolts, and remove
the lamp assembly by pulling it
directly backward from the rear
of the vehicle.
Use a flathead screwdriver wrapped
in a cloth.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■Back-up lightsOpen the back door and remove
the cover.
Use a flathead screwdriver wrapped
in a cloth.
1
2
3
1
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CT200h_OM_OM76197U_(U)
5197-3. Do-it-yourself maintenance
7
Maintenance and care
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by your Lexus
dealer.
●Headlight low beams (LED type)
●Parking lights and daytime running lights
●LED fog lights (if equipped)
●Front side marker lights
●Side turn signal lights
●Stop/tail lights
●Rear side marker lights
●High mounted stoplight
●License plate lights
●Outer foot lights
■After replacing the bulbs
2
3
After removing the power control unit cover,
return the cover to original position with the
clips.Push up center portion
Insert
Press
1
2
3
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CT200h_OM_OM76197U_(U)7-3. Do-it-yourself maintenance
■LED lights
The headlight low beams (LED type), parking
lights, front side marker lights, daytime
running lights, LED fog lights (if equipped), side turn signal lights, rear side marker lights,
stop/tail lights, high mounted stoplight and license plate lights consist of a number of
LEDs. If any of the LEDs burn out, take your vehicle to your Lexus dealer to have the light
replaced.
■Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact your Lexus dealer for mo re information in the following situations:
●Large drops of water have built up on the inside of the lens.
●Wa t e r h a s b u i l t u p i nside the headlight.
■When replacing light bulbs
P. 5 0 8
WA R N I N G
■Replacing light bulbs
●Be sure to stop the hybrid system and turn off the lights. Do not attempt to replace the
bulb immediately after turning off the lights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. When it is unavoid-
able to hold the glass portion, use and ho ld with a clean dry cloth to avoid getting
moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failure to do so may result
in heat damage, fire, or water entering the headlight unit. This may damage the head-
lights or cause condensation to build up on the lens.
●Do not attempt to repair or disassemble light bulbs, connectors, electric circuits or
component parts.
Doing so may result in death or se rious injury due to electric shock.
■To prevent damage or fire
●Make sure bulbs are fully seated and locked.
●Check the wattage of the bulb before installin g to prevent heat damage.
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CT200h_OM_OM76197U_(U)8-1. Essential information
Emergency flashers
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 hybrid system is not operat-
ing (while the “READY” indicator is not illu minated), the 12-volt battery may discharge.
The emergency flashers are used to warn other drivers when the vehicle has
to be stopped in the road due to a breakdown, etc.