flat tire LEXUS RC200T 2017 Owner's Manual

5567-3. Do-it-yourself maintenance
RC200t_RC F_EE(OM24728E)
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves, transmitters and tire valve caps
●When removing or fitting the wheels, tires or the tire pressure warning valves and
transmitters, contact any authorized Lexus de aler or repairer, or another duly quali- fied and equipped professional as the tire pressure warning valves and transmitters may be damaged if not handled correctly.
●Make sure to install the tire valve caps. If the tire valve caps are not installed, water could enter the tire pressure warning valv es and the tire pressure warning valves could be bound.
●When replacing tire valve caps, do not use tire valve caps other than those specified.The cap may become stuck.
■To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid sealants, the tire pressure warning valve and trans- mitter may not operate properly. If a liquid sealant is used, contact any authorizedLexus dealer or repairer, or another duly qu alified and equipped professional or other
qualified service shop as soon as possible. After use of liquid sealant, make sure to replace the tire pressure warning valve and transmitter when repairing or replacing the tire. ( P. 537)
■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 (except 17-inch tires)
Low profile tires may cause greater damage than usual to the tire wheel when sustain- ing impact from the road surface. Therefore, pay attention to the following:
●Be sure to use proper tire inflation pressu re. If tires are under-inflated, they may be
damaged more severely.
●Avoid potholes, uneven pavement, curbs an d other road hazards. Failure to do so may lead to severe tire and wheel damage.
■If tire inflation pressure of ea ch tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.

5577-3. Do-it-yourself maintenance
7
Maintenance and care
RC200t_RC F_EE(OM24728E)
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel economy
●Reduced driving comfort and poor handling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drivetrain
If a tire needs frequent inflating, have it checked by any authorized Lexus dealer or repairer, or another duly qua lified 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 inflation pressure reading.
●Always use a tire pressure gauge. It is difficult to judge if a tire is prop erly inflated based only on its appearance.
●It is normal for the tire inflation pressure to be higher after driving as heat is generated in the tire. Do not reduce tire inflation pressure after driving.
●Passengers and luggage weight should be placed so that the vehicle is balanced.
Tire inflation pressure
Make sure to maintain proper tire infl ation pressure. Tire inflation pressure
should be checked at least once per month. However, Lexus recommends
that tire inflation pressure be checked once every two weeks. ( P. 679)

5587-3. Do-it-yourself maintenance
RC200t_RC F_EE(OM24728E)
WARNING
■Proper inflation is critical to save tire performance
Keep your tires properly inflated. If the tires are not properly inflated, the following conditions may occur which could
lead to an accident resulting in death or serious injury:
●Excessive wear
●Uneven wear
●Poor handling
●Possibility of blowouts resulting from overheated tires
●Air leaking from between tire and wheel
●Wheel deformation and/or tire damage
●Greater possibility of tire damage while driving (due to road hazards, expansion joints, sharp edges in the road, etc.)
NOTICE
■When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on. If a valve cap is not installed, dirt or moisture may get into the valve and cause an airleak, resulting in decrease d tire inflation pressure.

5597-3. Do-it-yourself maintenance
7
Maintenance and care
RC200t_RC F_EE(OM24728E)
When replacing wheels, care should be taken to ensure that they are equivalent
to those removed in load capacity, diameter, rim width and inset*.
Replacement wheels are available at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
*: Conventionally referred to as “offset”.
Lexus does not recommend using the following:
●Wheels of different sizes or types
●Used wheels
●Bent wheels that have been straightened
●Use only Lexus wheel nuts and wrenches designed for use with your alumi-
num wheels.
●When rotating, repairing or changing your tires, check that the wheel nuts are
still tight after driving 1600 km (1000 miles).
●Be careful not to damage the aluminum wheels when using tire chains.
●Use only Lexus genuine balance weights or equivalent and a plastic or rubber
hammer when balancing your wheels.
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and transmit- ters that allow the tire pressure warning sy stem to provide advance warning in the event
of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure warning valves and transmitters must be installed. (P. 537)
Wheels
If a wheel is bent, cracked or heavily corroded, it should be replaced. Other-
wise, the tire may separate from the wheel or cause a loss of handling control.
Wheel selection
Aluminum wheel precautions

579
8When trouble arises
RC200t_RC F_EE(OM24728E)
8-1. Essential information
Emergency flashers ................. 580
If your vehicle has to be
stopped in an
emergency.................................. 581
8-2. Steps to take in an
emergency
If your vehicle needs to be
towed ...........................................582
If you think something is
wrong...........................................589
Fuel pump shut off
system ..........................................590
If a warning light turns
on or a warning buzzer
sounds........................................... 591
If a warning message is
displayed .................................... 597
If you have a flat tire
(vehicles with a
spare tire) .................................... 619
If you have a flat tire
(vehicles with an
emergency tire puncture
repair kit) .................................... 633
If the engine will not start ........ 648
If the electronic key does
not operate properly .............650
If the vehicle battery is
discharged ................................. 654
If your vehicle overheats ......... 659
If the vehicle becomes
stuck ............................................. 664

5898-2. Steps to take in an emergency
8
When trouble arises
RC200t_RC F_EE(OM24728E)
●Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge continually points higher than normal.
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
●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 fe eling, pedal almost touches the floor
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 an d equipped professional as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

5938-2. Steps to take in an emergency
8
When trouble arises
RC200t_RC F_EE(OM24728E)
*1: Open door warning buzzer:
 P. 599
Warning lightWarning light/Details/Actions
Open door warning light (warning buzzer)*1
Indicates that a door or the trunk is not fully closed  Check that both side doors and the trunk are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 10 L (2.6 gal., 2.2 Imp. gal.) or less Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)*2
Warns the driver and/or front passe nger 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)*2
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.
Master warning light A buzzer sounds and the warning light comes on and flashes to indicate that the master warnin g system has detected a malfunc-
tion.  P. 597
Tire pressure warning light When the light comes on:
Low tire inflation pressure such as • Natural causes ( P. 594) • Flat tire ( P. 619, 633)
 Adjust the tire inflation pressure to the specified level. The light will turn off after a few minutes. If the warning lightdoes not turn off after a few minutes, perform initialization ( P.
538). If the light does not turn off after performing initialization, have the system checked by any authorized Lexus dealer orrepairer, or another duly qualified and equipped professional.
When the light comes on af ter blinking for 1 minute: Malfunction in the tire pressure warning system
 Have the system checked by any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.

5948-2. Steps to take in an emergency
RC200t_RC F_EE(OM24728E)
*2: Seat belt warning buzzer:
The seat belt warning buzzer sounds to al ert the driver, front passenger and rear pas- sengers 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.
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on a 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.
■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 lampwill 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.
■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.
■When the tire pressure warning light comes on
Carry out the following procedure after the tire temperature has lowered sufficiently.
●Check the tire inflation pressure and adjust to the appropriate level.
●If the warning light does not go out even afte r several minutes, check that the tire infla- tion pressure is at the specifie d level and carry out initialization.
The warning light may come on again if the above operations are conducted without first
allowing the tire temperature to lower sufficiently.
■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 and tire inflation pressure changes caused by temperature. In this case, adjusting the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with the spare tire (if equipped)
The spare tire is not equipped with a tire pre ssure warning valve and transmitter. If a tire goes flat, the tire pressure warning light will no t turn off even though the flat tire has been replaced with the spare tire.
■Conditions that the tire pressure warning system may not function properly
P. 540

5958-2. Steps to take in an emergency
8
When trouble arises
RC200t_RC F_EE(OM24728E)
■If the tire pressure warning light frequently comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the engine switch is turned to IGNITION ON mode, have it checked by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.
WARNING
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized Lexus dealer or repairer, or another duly qualified and equipped professional. The vehicle will
become extremely unstable during braking, and the ABS system may fail, which could cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy. If the steering wheel becomes heavier than us ual when operating, hold firmly and oper- ate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of vehicle control and result in death or serious injury.
Vehicles with a spare tire
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressureimmediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust- ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change itwith the spare tire and have the flat tire repaired by the nearest authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
●Avoid abrupt maneuvering and braking. If th e vehicle tires deteriorate, you could lose control of the steering wheel or the brakes.
Vehicles with an emergency tire puncture repair kit
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressureimmediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust- ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, repair theflat tire by using emergency tire puncture repair kit.
●Avoid abrupt maneuvering and braking. If th e vehicle tires deteriorate, you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

6098-2. Steps to take in an emergency
8
When trouble arises
RC200t_RC F_EE(OM24728E)
Indicates that the tire inflation pressure is low
 Check the tire inflation pressure, and adjust to the appropriate level.
Indicates a malfunction in th e tire pressure warning sys- tem
 Stop the vehicle in a safe place and turn the engine switch off then on again.If the tire pressure warning indicator flashes for 1
minute then illuminates, th ere is a malfunction in the system. Have the vehicle inspected by any autho-rized Lexus dealer or repairer, or another duly qual-
ified and equipped professional.
Indicates that the tire position information cannot be rec- ognized Drive for a short while and check if the display
updates. If the radio wave conditions improve, the displaymay return to normal. If the tire pressure is still not
displayed after driving for several minutes, stop the vehicle in a safe place, turn the engine switch offthen on again, and start driving.
If the tire pressure is still not displayed even after repeating this process several times, have the vehi-cle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
RC F only
Indicates a malfunction in the active rear wing  Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Indicates that the washer fluid level is low Add washer fluid.
Warning messageDetails/Actions