Page 478 of 696
478
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
ItemsParts and tools
Engine oil level (P. 487)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses (P. 520)• Fuse with same amperage rating
as original
Light bulbs (P. 534)
• Bulb with same number and
wattage rating as original
• Phillips-head screwdriver
• Flathead screwdriver
•Wrench
Radiator and condenser (P. 4 9 4)
Tire inflation pressure (P. 507)• Tire pressure gauge
• Compressed air source
Washer fluid (P. 495)
• Water or washer fluid contain-
ing antifreeze (for winter use)
• Funnel (used only for adding
water or washer fluid)
Page 504 of 696

504
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
When to replace your vehicle’s tires
Tires should be replaced if:
You have tire damage such as cuts, splits, cracks deep enough to expose
the fabric, and bulges indicating internal damage.
A tire goes flat repeatedly or cannot be properly repaired due to the size
or location of a cut or other damage.
If you are not sure, consult with any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
Tire life
Any tire over 6 years old must be checked by a qualified technician even if
it has seldom or never been used or damage is not obvious.
Low profile tires (vehicles with 17 inch tires)
Generally, low profile tires will wear more rapidly and tire grip performance
will be reduced on snowy and/or icy roads when compared to standard tires.
Be sure to use snow tires or tire chains on snowy and/or icy roads and drive
carefully at a speed appropriate for road and weather conditions.
If the tread on snow tires wears down below 4 mm (0.16 in.)
The effectiveness of the tires as snow tires is lost.
Page 506 of 696
506
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
NOTICE
Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the
cushioning ability of the tires. In addition, driving on rough roads may cause
damage to the tires themselves, as well as the vehicle’s wheels and body.
Low profile tires (vehicles with 17 inch tires)
Low profile tires may cause greater damage than usual to the tire wheel
when sustaining impact from the road surface. Therefore, pay attention to
the following:
Be sure to use proper tire inflation pressure. If tires are under-inflated,
they may be damaged more severely.
Avoid potholes, uneven pavement, curbs and other road hazards. Failure
to do so may lead to severe tire and wheel damage.
If tire inflation pressure of each tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.
Page 507 of 696

507
4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_EE (OM76041E)
Tire inflation pressure
.
Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
Reduced fuel efficiency
Reduced driving comfort and tire life
Reduced safety
Damage to the drive train
If a tire needs frequent inflating, have it checked by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven
for more than 1.5 km or 1 mile, you will get an accurate cold tire infla-
tion pressure reading.
Always use a tire pressure gauge.
The appearance of the tire can be misleading. In addition, tire inflation
pressure that is even just a few pounds off can affect ride quality and
handling.
Do not reduce tire inflation pressure after driving. It is normal for tire
inflation pressure to be higher after driving.
Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is
balanced.
Make sure to maintain proper tire inflation pressure. Tire inflation
pressure should be checked at least once per month. However, Lexus
recommends that tire inflation pressure be checked once every two
Page 508 of 696
508
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
CAUTION
Proper inflation is critical to save tire performance
Keep your tires properly inflated. Otherwise, the following conditions may
occur and result in an accident causing death or serious injury:
Excessive wear
Uneven wear
Poor handling
Possibility of blowouts resulting from overheated tires
Poor sealing of the tire bead
Wheel deformation and/or tire separation
A greater possibility of tire damage from road hazards
NOTICE
When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on.
Without the valve caps, dirt or moisture could get into the valve and cause
air leakage, which could result in an accident. If the caps are lost, replace
them as soon as possible.
Page 549 of 696

5When trouble arises
549
CT200h_EE (OM76041E)
5-1. Essential information
Emergency flashers .......... 550
If your vehicle needs to be
towed.............................. 551
If you think something is
wrong ............................. 5575-2. Steps to take in an
emergency
If a warning light turns on
or a warning buzzer
sounds ............................ 558
If a warning message is
displayed ........................ 565
If you have a flat tire
(vehicles with a spare
tire) ................................ 586
If you have a flat tire
(vehicles without a spare
tire) ................................ 600
If the hybrid system will not
start ................................ 614
If you lose your keys ....... 616
If the electronic key does
not operate properly....... 617
If the 12-volt battery is
discharged ...................... 620
If your vehicle overheats . 627
If the vehicle becomes
stuck............................... 632
If your vehicle has to be
stopped in an
emergency...................... 634
Page 557 of 696
5
557
5-1. Essential information
When trouble arises
CT200h_EE (OM76041E)
If you think something is wrong
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 and equipped professional as soon
as possible.
Visible symptoms
Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is nor-
mal.)
Flat-looking tires or uneven tire wear
High coolant temperature warning light flashes or comes
on.
Audible symptoms
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
Operational symptoms
Engine missing, stumbling or running roughly
Appreciable loss of power
Vehicle pulls heavily to one side when braking
Vehicle p lls hea il to one side hen dri ing on a le el
Page 586 of 696
586
5-2. Steps to take in an emergency
CT200h_EE (OM76041E)
If you have a flat tire (vehicles with a spare tire)
Remove the flat tire and replace it with the spare tire provided.
Before jacking up the vehicle
Stop the vehicle on a hard, flat surface.
Set the parking brake.
Shift the shift position to P.
Stop the hybrid system.
Turn on the emergency flashers.
Location of the spare tire, jack and tools
Center auxil-
iary
Jack Spare Jack han- Wheel
nut
Towing eye-