2017 Lexus IS200t check engine

5047-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
Check the radiator, condenser and intercooler radiator and clear away any for-
eign objects.
If any of the above parts are extremely dirty or you are not sure of their condition,
have your vehicle inspected by any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
WARNING
■When the engine is hot
Do not remove the engine coolant reservoir cap or intercooler coolant reservoir cap.
(  P. 622)
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water and
antifreeze must be used to provide proper lubrication, corrosion protection and cool-
ing. Be sure to read the antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
Radiator, condenser and intercooler radiator
WARNING
■When the engine is hot
Do not touch the radiator, condenser or intercooler radiator as they may be hot and
cause serious injuries, such as burns.

5067-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
■Adding distilled waterRemove the vent plug.
Add distilled water.
If the “UPPER LEVEL” line cannot be
seen, check the fluid level by looking
directly at the cell.
Put the vent plug back on and close it securely.
■Before recharging
When recharging, the battery produces hydr ogen gas which is flammable and explosive.
Therefore, observe the following before recharging:
●If recharging with the 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 battery.
■After recharging/reconnecting the battery
The engine may not start. Follow the procedure below to initialize the system.
Shift the shift lever to P.
Open and close an y of the doors.
Restart the engine.
●Unlocking the doors using the smart entry & start system may not be possible immedi-
ately after reconnecting the battery. If this happens, use the wireless remote control or
the mechanical key to lock/unlock the doors.
●Start the engine with the engine switch in ACCESSORY mode. The engine may not
start with the engine switch turned off. However, the engi ne will operate normally from
the second attempt.
●The engine switch mode is recorded by the vehicle. If the battery is disconnected and
reconnected, the vehicle will return the engi ne switch mode to the status it was in
before the battery was disconnected. Make sure to turn off the engine before discon-
necting the battery. Take extra care when connecting the battery if the engine switch
mode prior to the battery being disconnected is unknown.
If the engine will not start even after multip le attempts at all the methods contact any
authorized Lexus retailer or Lexus author ized repairer, or any reliable repairer.
1
LowO.K.2
3
1
2
3

5307-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
Turn the engine switch off.
Open the fuse box cover.
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and replace the fuses as necessary.
1
2
Engine compartment: type A fuse
box (left-hand drive vehicles) Engine compartment: type A fuse
box (right-hand drive vehicles)
Push the tab in and lift the lid off. Push the tab in and lift the lid off.
Engine compartment: type B fuse
box
Push the tab in and lift the lid off.

5588-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
*3: 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 the 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 lamp
will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer 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 specified 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 compact spare tire is not equipped with a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warning light will not 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. 513
■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 retailer or Lexus authorized repairer, or any reliable repairer.

5748-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
Indicates a malfunction in the drive start control system
A buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer immediately.
Indicates a malfunction in the brake override system
A buzzer also sounds.
 Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
Indicates that engine oil level is low
This message may appear if the vehicle is stopped on a
slope. Move the vehicle to a level surface and check to
see if the message disappears.
 Check the level of engine oil, and add if necessary.
Warning messageDetails/Actions

5768-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
Indicates that remaining fuel is approximately 10 L (2.6
gal., 2.2 Imp. gal.) or less
Refuel the vehicle.
Indicates that the outside temperature is approximately
3C (37 F) or lower
A buzzer also sounds.
 Drive carefully, as the road may be icy.
Indicates that the TRC (Traction Control) system has
been deactivated
Turn the TRC on. ( P. 342)
Indicates that the engine oil is scheduled to be changed.
(The indicator will not work properly unless the message
has been reset.)
 Check the engine oil, and change if necessary.
After changing the engine oil, the message should
be reset.
(If equipped)
Indicates that the fuel in jectors require maintenance
soon
 Have any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer add injector
cleaner to the fuel tank and reset the message as
necessary.
Warning messageDetails/Actions

5778-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
Indicates that the engine oil should be changed. (After
the engine oil is changed and the message has been
reset.)
Check and change the engine oil, and oil filter by
any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer. After changing the
engine oil, the message should be reset.
(If equipped)
Indicates that the fuel injectors require maintenance
Have any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer add injector
cleaner to the fuel tank and reset the message.
(If equipped)
Indicates that the Automatic High Beam switch is
pressed while the headlights are in low beam.
Turn the high beam on and press the Automatic
High Beam switch again.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-collision braking and pre-
collision brake assist are stopped (The pre-collision
warning function will be operational)
 Turn the VSC on. ( P. 343)
Warning messageDetails/Actions

5878-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
●Stop the vehicle in a safe place on a hard, flat surface.
●Set the parking brake.
●Shift the shift lever to P.
●Stop the engine.
●Turn on the emergency flashers. (P. 544)
●Check the degree of the tire damage.
A tire should only be repaired with
the emergency tire puncture repair
kit if the damage is caused by a nail
or screw passing through the tire
tread.
• Do not remove the nail or screw from the tire. Removing the
object may widen the opening
and disenable emergency repair
with the kit.
• To avoid sealant leakage, move the vehicle until the area of the puncture, if
known, is positioned at the top of the tire.
■A flat tire that cannot be repaired with the emergency tire puncture repair kit
In the following cases, the tire cannot be repaired with the emergency tire puncture
repair kit. Contact any authorized Lexus retaile r or Lexus authorized repairer, or any reli-
able repairer.
●When the tire is damaged due to driving without sufficient air pressure
●When the tire lost air pressure due to a crack or damage in the tire sidewall
●When the tire is visibly separated from the wheel
●When the cut or damage to the tread is 4 mm (0.16 in.) long or more
●When the wheel is damaged
●When two or more tires have been punctured
●When there is more than one hole or cut in the damaged tire
Before repairing the vehicle