LEXUS CT200H (2017 year). Instruction - part 34

When trouble

■

If the malfunction indicator lamp comes on while driving
First check the following:

●

Is the fuel tank empty?

If it is, fill the fuel tank immediately.

●

Is the fuel tank cap loose?

If it is, tighten it securely.

The malfunction indicator lamp will go off after several driving trips.

If the malfunction indicator lamp does not go off even after several trips, contact your

Lexus dealer as soon as possible.

■

When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire

pressure warning reset switch will not turn off the tire pressure warning light.

■

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 a spare tire
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. Replace the spare tire with the repaired tire

and adjust the tire inflation pressure. The tire pressure warning light will go off after a few

minutes.

■

If the tire pressure warning system is not functioning
P. 499

■

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

power switch is turned to ON mode, have it checked by your Lexus dealer.

■

Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio

sound.

■

Customization that can be configured at Lexus dealer
The vehicle speed linked seat belt reminder buzzer can be disabled.

(Customizable features:

P. 598)

However, Lexus recommends that the seat belt reminder buzzer be operational to alert

the driver and front passenger when seat belts are not fastened.

540

WARNING

■

If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The vehi-

cle 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 usual 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.

●

Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure

immediately.

●

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 it

with the spare tire and have the flat tire repaired by the nearest Lexus dealer.

●

Avoid abrupt maneuvering and braking. If the 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.

541

When trouble

WARNING

■

Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold and

inflated to the inflation pressure recommended by the vehicle manufacturer on the

vehicle placard or tire inflation pressure label (tire and load information label). (If your

vehicle has tires of a different size than the size indicated on the vehicle placard or tire

inflation pressure label [tire and load information label], you should determine the

proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure moni-

toring system (TPMS-tire pressure warning system) that illuminates a low tire pressure

telltale (tire pressure warning light) when one or more of your tires is significantly

under-inflated. Accordingly, when the low tire pressure telltale (tire pressure warning

light) illuminates, you should stop and check your tires as soon as possible, and inflate

them to the proper pressure. Driving on a significantly under-inflated tire causes the

tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency

and tire tread life, and may affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for proper

tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure,

even if under-inflation has not reached the level to trigger illumination of the TPMS low

tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-

function indicator to indicate when the system is not operating properly. The TPMS

(tire pressure warning system) malfunction indicator is combined with the low tire pres-

sure telltale (tire pressure warning light). When the system detects a malfunction, the

telltale will flash for approximately one minute and then remain continuously illumi-

nated. This sequence will continue upon subsequent vehicle start-ups as long as the

malfunction exists. When the malfunction indicator is illuminated, the system may not

be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a variety of reasons,

including the installation of replacement or alternate tires or wheels on the vehicle that

prevent the TPMS (tire pressure warning system) from functioning properly. Always

check the TPMS (tire pressure warning system) malfunction telltale after replacing one

or more tires or wheels on your vehicle to ensure that the replacement or alternate

tires and wheels allow the TPMS (tire pressure warning system) to continue to function

properly.

NOTICE

■

To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warning

system may not operate properly.

543

When trouble

Warning message and warning buzzer list

Warning message

Details/Actions

(If equipped)

Indicates that:

• There is a high possibility of a frontal collision; or

• The pre-collision braking function is operating

A buzzer also sounds.

 Slow the vehicle by applying the brakes.

(Flashes)

(If equipped)

Indicates that your vehicle is nearing the vehicle ahead

(in vehicle-to-vehicle distance control mode)

A buzzer also sounds.

 Slow the vehicle by applying the brakes.

Indicates that the driver’s door was opened with the shift

position in any position other than P

A buzzer also sounds.

 Shift the shift position to P.

Indicates that one or more of the doors is not fully closed

The system also indicates which doors are not fully

closed.

If the vehicle reaches a speed of 3 mph (5 km/h), a

buzzer sounds to indicate that the door(s) are not yet

fully closed.

 Make sure that all the doors are closed.

Indicates that the hood is not fully closed

 Close the hood.

Indicates that the back door is not fully closed

If the vehicle reaches a speed of 3 mph (5 km/h), a

buzzer sounds to indicate that the back door is not yet

fully closed.

 Close the back door.

(Flashes

rapidly)

(Flashes)

544

(If equipped)

Indicates a malfunction in the intuitive parking assist

All the sensor lights flash.

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

(If equipped)

Indicates that an intuitive parking assist sensor is dirty or

covered with ice

All the sensor lights flash.

A buzzer also sounds.

 Clean the sensor.

Indicates that the accelerator pedal is depressed while

the shift position is in N

A buzzer also sounds.

 Release the accelerator pedal and shift the shift

position to D or R.

Indicates that the accelerator pedal is depressed to stop

the vehicle on an upward slope etc.

A buzzer also sounds.

If this continues, the hybrid system may overheat.

 Release the accelerator pedal and depress the

brake pedal.

Indicates that the traction battery power has dropped

because a long period of time has elapsed after shifting

the shift position to N

A buzzer also sounds.

 Restart the hybrid system when starting the vehicle.

Warning message

Details/Actions

(Flashes)

545

When trouble

Indicates a malfunction in the hybrid system

A buzzer also sounds.

 Immediately stop the vehicle in a safe place and

contact your Lexus dealer.

Indicates that the traction battery is low

A buzzer also sounds.

 When stopping the vehicle for a long period of time,

shift the shift position to P. The battery cannot be

charged with the shift position in N.

Indicates that the vehicle is being driven at 3 mph (5 km/h)

or more with the parking brake still engaged.

A buzzer also sounds.

 Release the parking brake.

Indicates a malfunction in the shift control system

A buzzer also sounds.

 Have the vehicle inspected at your Lexus dealer

immediately.

• The hybrid system may not be able to start.

• The parking lock mechanism may not operate. Also,

shifting the shift position to P may not be possible.

When parking, choose a level place and apply the

parking brake securely.

• The automatically P position selection function (

P. 168)

may not operate. Before turning the power switch off,

securely press the P position switch, and be sure to check

that the shift position is in P by verifying the shift position

indicator or P position switch indicator.

• The power switch may not be able to be turned off. In

this case, the power switch can be turned off by apply-

ing the parking brake.

• The 12-volt battery may not be charged sufficiently. In

this case, charge or replace the 12-volt battery.

After charging the 12-volt battery, the message may

continue to be displayed until the shift position is

shifted from P.

Warning message

Details/Actions

(Flashes)

(U.S.A.)

(Canada)

(Flashes)

546

Indicates a malfunction in the shift control system

A buzzer also sounds.

 Have the vehicle inspected at your Lexus dealer

immediately.

If not inspected, vehicle systems may not operate

properly.

An attempt was made to change the shift position when

the 12-volt battery voltage was low.

A buzzer also sounds.

 Recharge or replace the 12-volt battery.

Indicates that the shift lever and P position switch were

repeatedly operated in quick succession.

A buzzer also sounds.

 Wait approximately 20 seconds and change the

shift position.

An attempt was made to shift the shift position from P or

N to B.

A buzzer also sounds.

 Shift the shift position to D, and then shift the shift

position to B.

An attempt was made to shift the shift position to R, D or

B with the power switch on (READY indicator turned

off).

A buzzer also sounds.

 After starting the hybrid system, shift the shift posi-

tion to R, D or B

: When shifting the shift position to B, first shift the

shift position to D, and then shift the shift position to
B.

An attempt was made to shift the shift position from P

with the brake pedal released.

A buzzer also sounds.

 When shifting the shift position from P, depress the

brake pedal.

Warning message

Details/Actions

(Flashes)

547

When trouble

An attempt was made to shift the shift position from R to

A buzzer also sounds.

The shift position automatically changed to N.

 Shift the shift position to D, and then shift the shift

position to B.

An attempt was made to shift the shift position to D while

the vehicle was moving in reverse.

A buzzer also sounds.

The shift position automatically changed to N.

 Stop the vehicle, and then change the shift position.

An attempt was made to shift the shift position to R while

the vehicle was moving forward.

A buzzer also sounds.

The shift position automatically changed to N.

 Stop the vehicle, and then change the shift position.

Indicates that the P position switch is pressed while the

vehicle is running.

A buzzer also sounds.

The shift position automatically changed to N.

 To shift the shift position to P, stop the vehicle com-

pletely and press the P position switch.

 To continue driving, shift the shift position to D or R.

(If equipped)

Indicates that the radar cruise control sensor is dirty or

covered with ice

A buzzer also sounds.

 Clean the sensor.

(If equipped)

Indicates that the dynamic radar cruise control system is

unable to judge vehicle-to-vehicle distance

A buzzer also sounds.

 If the windshield wipers are on, turn them off or set

them to either intermittent or slow mode.

Warning message

Details/Actions

(Flashes)

548

Indicates a malfunction in:

• The cruise control system; or

• The dynamic radar cruise control system

Press the “ON-OFF” button once to deactivate the

system, and then press the button again to reactivate

the system.

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

(If equipped)

Indicates a malfunction in the pre-collision system

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

(If equipped)

Indicates that the moon roof is not fully closed (with the

power switch off, and the driver’s door open)

A buzzer also sounds.

 Close the moon roof.

Indicates that the hybrid system has overheated

This message may be displayed when driving under

severe operating conditions. (For example, when driv-

ing up a long steep hill.)

A buzzer also sounds.

 Stop and check. (P. 572)

(If equipped)

Indicates a malfunction in the LED headlight system

A buzzer also sounds.

 Have the vehicle inspected by your Lexus dealer.

Indicates that the washer fluid level is low

 Add washer fluid.

Warning message

Details/Actions

(Flashes)

549

When trouble

: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supplement”

for the maintenance interval applicable to your vehicle.

: For the EV drive mode operating conditions (

P. 163).

(U.S.A. only)

Indicates that all maintenance according to the driven
distance on the maintenance schedule

should be per-

formed soon.

Comes on approximately 4500 miles (7200 km)

after the message has been reset.

 If necessary, perform maintenance.

(U.S.A. only)

Indicates that all maintenance is required to correspond
to the driven distance on the maintenance schedule

Comes on approximately 5000 miles (8000 km)

after the message has been reset.

(The indicator will not work properly unless the mes-

sage has been reset.)

 Perform the necessary maintenance. Please reset

the message after the maintenance is performed

(

P. 473)

(If equipped)

Indicates that the pre-collision system is not currently

functional because the grille cover or the sensor is dirty

This message also appears when the pre-collision sys-

tem is not functional due to overheating.

 Check the grille cover and the sensor and clean

them if they are dirty.

In case of overheating, the system will become func-

tional once the system cools down.

Indicates that the EV drive mode is not available

The reason the EV drive mode is not available (the

vehicle is idling, battery charge is low, speed is higher

than the EV drive mode operating speed range, accel-

erator pedal is depressed too much) may be dis-

played.

A buzzer also sounds.

 Use the EV drive mode when it becomes available.

Indicates that the EV drive mode has been automatically

canceled

The reason the EV drive mode is not available (the

battery charge is low, speed is higher than the EV

drive mode operating speed range, accelerator pedal

is depressed too much) may be displayed.

A buzzer also sounds.

 Drive the vehicle for a while.

Warning message

Details/Actions

(Flashes

3 times)

550

■

Warning messages
The warning message illustrations used are intended as examples, and may differ from

the image that is actually displayed on the multi-information display.

■

Warning message in radar cruise mode (if equipped)
In the following situations, the warning message may not be displayed even if vehicle-to-

vehicle distance decreases:

●

When your vehicle and the vehicle ahead are traveling at the same speed or the vehicle

ahead is traveling more quickly than your vehicle

●

When the vehicle ahead is traveling at a very low speed

●

Immediately after cruise control speed is set

●

At the instant the accelerator pedal is depressed

■

Warning buzzer
P. 539

Carrying out the corresponding action turns the message off.

Other displayed message

Displayed message

Details/Actions

Maintenance of the hybrid battery (traction battery)

cooling component is required

The filter may be clogged, the air intake vent may be

blocked or there may be a gap in the duct.

 Have maintenance performed on the hybrid battery

(traction battery) cooling component at your Lexus

dealer.

551

When trouble

Interior

buzzer

Exterior

buzzer

Warning message

Details/Actions



Power was turned off due to the

automatic power off function.

 Next time, start the hybrid sys-

tem and keep it on for approxi-

mately 5 minutes or more to

recharge the 12-volt battery.

Con-

tinuous



The driver’s door was opened while

any shift position other than P was

selected without turning off the

power switch.

 Shift the shift position to P.

Con-

tinuous

Con-

tinuous

The electronic key was carried out-

side the vehicle and the driver’s door

was opened and closed while any

shift position other than P was

selected without turning off the

power switch.

 Shift the shift position to P.

 Bring the electronic key back

into the vehicle.

Once



An attempt was made to start the

hybrid system without the electronic

key being present, or the electronic

key was not functioning normally.

 Start the hybrid system with the

electronic key present.

An attempt was made to drive when

the regular key was not inside the

vehicle.

 Confirm that the electronic key

is inside the vehicle.

(Flashes)

552

Once

3 times

The electronic key was carried out-

side the vehicle and a door other

than the driver’s door was opened

and closed while the power switch

was in a mode other than off.

 Bring the electronic key back

into the vehicle.

The electronic key was carried out-

side the vehicle and the driver’s door

was opened and closed while the

shift position P was selected without

turning off the power switch.

 Turn the power switch off.

 Bring the electronic key back

into the vehicle.

Once

Sounds

once

for 5

sec-

onds

An attempt was made to exit the

vehicle with the electronic key and

lock the doors without first turning

the power switch off.

 Turn the power switch off and

lock the doors again.

Once



An attempt was made to turn the

power switch off when the shift posi-

tion was not in P.

 To turn off the hybrid system,

first shift the shift position to P

and then turn the power switch

off.

Interior

buzzer

Exterior

buzzer

Warning message

Details/Actions

(Flashes)

(Displayed alternately)

(Flashes)

553

When trouble

Once

Sounds

once

for 5

sec-

onds

• An attempt was made to lock the

doors using the smart access sys-

tem with push-button start while

the electronic key was still inside

the vehicle.

• An attempt was made to lock

either front door by opening a

door and putting the inside lock

button into the lock position, then

closing the door with the elec-

tronic key still inside the vehicle.

 Retrieve the electronic key

from the vehicle and lock the

doors again.

Once



• When the doors were unlocked

with the mechanical key and then

the power switch was pressed, the

electronic key could not be

detected in the vehicle.

• The electronic key could not be

detected in the vehicle even after

the power switch was pressed two

consecutive times.

 Touch the electronic key to the

power switch while depressing

the brake pedal.

Once



The driver’s door was opened and

closed with the power switch turned

off and then the power switch was

put in ACCESSORY mode twice

without the hybrid system being

started.

 Press the power switch while

depressing the brake pedal.

During a hybrid system starting pro-

cedure in the event that the elec-

tronic key was not functioning

properly (

P. 567), the power

switch was touched with the elec-

tronic key.

 Press the power switch within 10

seconds of the buzzer sounding.

Interior

buzzer

Exterior

buzzer

Warning message

Details/Actions

(Flashes)

554