4807-3. Do-it-yourself maintenance
CT200h_OM_OM76135E_(EE)
WA R N I N G
■When replacing wheels
●Do not use wheels that are a different size from those recommended in the Owner’s
Manual, as this may result in a loss of handling control.
●Never use an inner tube in a leaking wheel which is designed for a tubeless tire. Doing
so may result in an accident, causing death or serious injury.
■Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing an accident.
NOTICE
■Replacing tire pressure warning valves and transmitters (vehicles with the tire pres-
sure warning system)
●Because tire repair or replacement may affect the tire pressure warning valves and
transmitters, make sure to have tires serviced by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional or other qualified ser-
vice shop. In addition, make sure to purchase your tire pressure warning valves and
transmitters at any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
●Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly with non-genu-
ine wheels.
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507
8When trouble arises
CT200h_OM_OM76135E_(EE)
8-1. Essential informationEmergency flashers ................. 508
If your vehicle has to be stopped in an
emergency.................................509
8-2. Steps to take in an emergency If your vehicle needs to be towed ............................................ 510
If you think something is wrong .............................................514
If a warning light turns on or a warning buzzer
sounds........................................... 515
If a warning message is displayed.......................................521
If you have a flat tire (vehicles with a spare tire) ...................... 539
If you have a flat tire (vehicles without a spare tire) ................ 551
If the hybrid system will not start ............................................... 563
If the electronic key does not operate properly .....................565
If the 12-volt battery is discharged ................................. 567
If your vehicle overheats ........... 571
If the vehicle becomes stuck ............................................. 575
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5108-2. Steps to take in an emergency
CT200h_OM_OM76135E_(EE)
If your vehicle needs to be towed
In the following situations, it is not possible to be towed by another vehicle using
cables or chains, as the front wheels m ay be locked due to the parking lock. Con-
tact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional or commercial towing service.
●There is a malfunction in the shift control system. ( →P. 577)
●There is a malfunction in the immobilizer system. ( →P. 7 9 )
●There is a malfunction in the smart entry & start system. ( →P. 565)
●The 12-volt battery is discharged. ( →P. 5 6 7 )
The following may indicate a problem with your hybrid transmission. Contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional or commercial towing service before towing.
●The hybrid warning message shows on the multi-information display and the
vehicle does not move.
●The vehicle makes an abnormal sound.
Do not tow with a sling-type truck to
prevent body damage.
If towing is necessary, we recommend having your vehicle towed by any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional or commercial towing servic e, using a lift-type truck or flat bed
truck.
Use a safety chain system for all towing, and abide by all state/provincial and
local laws.
Situations when it is not possible to be towed by another vehicle
Situations needs to contact dealers before towing
Towing with a sling-type truck
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5148-2. Steps to take in an emergency
CT200h_OM_OM76135E_(EE)
If you think something is wrong
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●High coolant temperature warning light flashes or comes on
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the hybrid system
●Engine missing, stumbling or running roughly
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost touches the floor
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact any authorized Lexus dealer or repairer, or
another duly qualified an d equipped professional as soon as possible.
Visible s ymp toms
Audible symptoms
Operational symptoms
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5158-2. Steps to take in an emergency
CT200h_OM_OM76135E_(EE)
8
When trouble arises
If a warning light turns on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified an d equipped professional.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
Brake system warning light and warning buzzer (red indicator)*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
This light also comes on when th e parking brake is not released. If
the light turns off after the parkin g brake is fully released, the sys-
tem is operating normally.
→ Immediately stop the vehicle in a safe place and contact any
authorized Lexus dealer or repairer, or another duly qualified
and equipped professional. Continuing to drive the vehicle may
be dangerous.
Brake system warning light (yellow indicator)
Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
→ Immediately stop the vehicle in a safe place and contact any
authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low
→ Immediately stop the vehicle in a safe place and contact any
authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
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5168-2. Steps to take in an emergency
CT200h_OM_OM76135E_(EE)
Malfunction indicator lampIndicates a malfunction in:
• The hybrid system;
• The electronic engine control system;
• The electronic throttle control system; or
• The emission control system (If equipped)
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
ABS warning light
Indicates a malfunction in:
•The ABS; or
• The brake assist system
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Electric power steering system warning light (warning buzzer)
Indicates a malfunction in the EPS system
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
(Flashes)
(If equipped)
“PCS” warning light
Indicates a malfunction in the pre-crash safety system
The warning light will operate as follows, even when the system is
not malfunctioning:
• The light will flash quickly when the system is operating. (→ P. 244)
• The light will turn on when th e pre-crash braking is disabled.
( → P. 244)
• The light will turn on when the system cannot temporarily be used. ( →P. 5 3 3 )
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Warning lightWarning light/Details/Actions
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5178-2. Steps to take in an emergency
CT200h_OM_OM76135E_(EE)
8
When trouble arises
Slip indicator light Indicates a malfunction in:
• The VSC system;
• The TRC system; or
• The hill-start assist control system
The light will flash when the above systems and/or ABS are operat-
ing.
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
(If equipped)
Automatic headlight leveling system warning light
Indicates a malfunction in the au tomatic headlight leveling system
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
High coolant temperature warning light
Changes from a flashing to a solid light when the engine coolant
temperature increases
→ Stop and check. ( →P. 5 7 1 )
Open door warning light (warning buzzer)*2
Indicates that a door is not fully closed
→ Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 6.8 L (1.8 gal., 1.5
Imp.gal.) or less
→ Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)
*3
Warns the driver and/or front passenger to fasten their seat belts
→ Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fastened to make the warning light
(warning buzzer) turn off.
Rear passengers’ seat belt reminder lights (warning buzzer)*4
Warns the rear passengers to fasten their seat belts in the following
situations:
• A rear door is opened and closed.
*5
• A rear passenger fastens their se at belt and then unfastens it.
→ Fasten the seat belt.
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warning system has detected a malfunc-
tion.
→ P. 5 2 1
Warning lightWarning light/Details/Actions
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5188-2. Steps to take in an emergency
CT200h_OM_OM76135E_(EE)
*1: Brake system warning buzzer:When there is a possible problem that coul d affect braking performance, the warning
light will come on and a warning buzzer will sound.
Parking brake engaged warning buzzer:
→ P. 5 2 6
*2: Open door warning buzzer:
→ P. 5 2 3
*3: Driver’s and front passenger’s seat belt buzzer:
The driver’s and front passenger’s seat belt buzzer sounds to alert the driver and front
passenger that his or her seat belt is not fastened. The buzzer sounds for 30 seconds
after the vehicle reaches a speed of 20 km/h (12 mph). Then, if the seat belt is still
unfastened, the buzzer will sound in a different tone for 90 more seconds.
*4: Rear passengers’ seat belt buzzer:The rear passengers’ seat belt buzzer sounds to alert the driver that the rear seat belt
is not fastened. The buzzer sounds for 30 seconds after the vehicle reaches a speed
of 20 km/h (12 mph). Then, if the seat belt is still unfastened, the buzzer will sound in a
different tone for 90 more seconds.
*5: If the rear seat belt is not fastened, the lig ht will go off after a short period of time.
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenge r 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 12-volt battery charge becomes insu fficient or the voltage temporarily drops,
the electric power steering system warning light may come on and the warning buzzer
may sound.
(If equipped)
Tire pressure warning light When the light comes on:
Low tire inflation pressure such as
• Natural causes ( →P. 5 1 9 )
• Flat tire ( →P. 539, 551)
→ Adjust the tire inflation pre ssure to the specified level.
The light will turn off after a few minutes. In case the light does
not turn off even if the tire inflation pressure is adjusted, have the
system checked by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
When the light comes on af ter blinking for 1 minute:
Malfunction in the tire pr essure warning system (→P. 5 1 9 )
→ Have the system checked by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
Warning lightWarning light/Details/Actions
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