ignition Lexus ES300h 2015 Opening, closing and locking the doors and trunk / (OM33B99U) Workshop Manual

ES350_300h_OM_OM33B99U_(U)
5697-3. Do-it-yourself maintenance
7
Maintenance and care
◆Registering ID codes
The tire pressure warning valve and transmitter is equipped with a
unique ID code. When replacing a tire pressure warning valve and
transmitter, it is necessary to register the ID code. Have the ID code
registered by your Lexus dealer.
■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 loca-
tion of a cut or other damage
If you are not sure, consul t with your Lexus dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered, the
tire pressure warning system will not work properly. After driving for about 20 min-
utes, the tire pressure warning light blinks for 1 minute and stays on to indicate a sys-
tem malfunction.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even if it has sel-
dom or never been used or damage is not obvious.
■Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation pressure
checks. Make sure to check tire inflation pressure as part of your routine of daily
vehicle checks.
■When rotating the tires
Make sure that the “START STOP ENGINE” <“POWER”> switch is off. If the tires are
rotated while the “START STOP ENGINE” <“POWER”> switch is in IGNITION ON
mode, the tire position in formation will not be updated.
If this accidentally occurs, either turn the “START STOP ENGINE” <“POWER”>
switch to off and then to IGNITION ON mode, or initialize the system after
checking that the tire pressure is properly adjusted.

572
ES350_300h_OM_OM33B99U_(U)
7-3. Do-it-yourself maintenance
■The initialization operation
●Make sure to carry out initialization after adjusting the tire inflation pressure.
Also, make sure the tires are cold before carrying out initialization or tire inflation
pressure adjustment.
●If you have accidentally turned the “START STOP ENGINE” <“POWER”> switch
off during initialization, it is not necessary to press the reset switch again as initial-
ization will restart automatically when the “START STOP ENGINE” <“POWER”>
switch has been turned to IGNITION ON mode for the next time.
●If you accidentally press the reset switch when initialization is not necessary, adjust
the tire inflation pressure to the specified level when the tires are cold, and conduct
initialization again.
■When initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in the following cases, the
settings have not been recorded and the system will not operate properly. If
repeated attempts to record tire inflation pressure settings are unsuccessful, have
the vehicle inspected by your Lexus dealer.
●When operating the tire pressure warning reset switch, the tire pressure warning
light does not blink 3 times.
●After carrying out the initialization proced ure, the tire pressure warning light blinks
for 1 minute then stays on after driving for 20 minutes.

6308-2. Steps to take in an emergency
ES350_300h_OM_OM33B99U_(U)
*1: Open door warning buzzer: P. 6 4 1
*2: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to al ert the driver that his or her seat belt is
not fastened. Once the “START STOP EN GINE” <“POWER”> switch is turned to
IGNITION ON mode, the buzzer sounds for 6 seconds. If the vehicle
reaches a speed of 12 mph (20 km/h), the buzzer sounds once. If the seat belt is
still unfastened after 30 seconds, the buzz er will sound intermittently for 10 sec-
onds. Then, if the seat belt is still unfast ened, the buzzer will sound in a different
tone for 20 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer soun ds to alert the front passenger that his
or her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a
speed of 12 mph (20 km/h). If the seat be lt is still unfastened after 30 seconds,
the buzzer will sound intermittently for 10 seconds. Then, if the seat belt is still
unfastened, the buzzer will sound in a different tone for 20 more seconds.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such
as
• Natural causes ( P. 6 3 2 )
• Flat tire ( P. 6 5 9 )
Adjust the tire inflation pressure
(including the full-size spare
tire) 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 your Lexus
dealer.
When the light comes on after
blinking for 1 minute:
Malfunction in the tire pressure
warning system
Have the system checked by
your Lexus dealer.
Warning lightWarning light/DetailsCorrection procedure

6328-2. Steps to take in an emergency
ES350_300h_OM_OM33B99U_(U)
■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
Vehicles with a compact spare tire: The compact spare tire is not equipped with a tire
pressure warning valve and transmitter. 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.
Vehicles with a full-size spare tire: The spare tire is also equipped with a tire pressure
warning valve and transmitter. The tire pressure warning light will turn on if the tire
inflation pressure of the spare tire is low. 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. 5 7 1
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when
the “START STOP ENGINE” <“POWER”> switch is turned to IGNITION ON
mode, have it checked by your Lexus dealer.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the warn-
ing buzzer may sound.
■Warning buzzer
In some cases, the buzzer may not be he ard because of noisy place or an audio
sound.

708
ES350_300h_OM_OM33B99U_(U)
9-1. Specifications
Ignition system
Spark plug
MakeGasoline vehicles
DENSO FK20HR11
Hybrid vehicles
DENSO FK16HR-A8
GapGasoline vehicles
0.043 in. (1.1 mm)
Hybrid vehicles
0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

760What to do if... (Troubleshooting)
ES350_300h_OM_OM33B99U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys
can be made by your Lexus dealer. ( P. 125)
●If you lose your electronic keys, the risk of vehicle theft
increases significantly. Contact your Lexus dealer immediately.
( P. 1 2 6 )
●Is the electronic key battery weak or depleted? ( P. 5 8 4 )
●Is the “START STOP ENGINE” <“POWER”> switch in
IGNITION ON mode?
When locking the doors, turn the “START STOP ENGINE”
<“POWER”> switch off. ( P. 206, 213)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the elec-
tronic key on your person.
●The function may not operate pr operly due to the condition of
the radio wave. ( P. 1 3 4 )
If you have a problem, check the following before contacting your
Lexus dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked

762What to do if... (Troubleshooting)
ES350_300h_OM_OM33B99U_(U)●
Did you press the “START STOP ENGINE” <“POWER”>
switch while firmly depressing the brake pedal? (
P. 205, 212)
●Is the shift lever in P? (P. 208, 215)
●Is the electronic key anywhere detectable inside the vehicle?
( P. 130)
●Is the steering wheel unlocked? ( P. 209, 216)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a tem-
porary way. ( P. 6 7 8 )
●Is the 12-volt battery discharged? ( P. 680, 684)
●Is the “START STOP ENGINE” <“POWER”> switch in
IGNITION ON mode?
If you cannot release the shift lever by depressing the brake
pedal with the “START STOP ENGINE” <“POWER”> switch in
IGNITION ON mode ( P. 6 76 )
If you think something is wrong
The engine does not start
The shift lever cannot be shifted from P even if you depress the
brake pedal

763What to do if... (Troubleshooting)
ES350_300h_OM_OM33B99U_(U)●
It is locked automatically to prevent theft of the vehicle.
(
P. 208, 215)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat can-
not be operated if the window lock switch is pressed. (P. 177)
●Gasoline vehicles: The auto pow er off function will be operated
if the vehicle is left in ACCE SSORY or IGNITION ON mode
(the engine is not running) for a period of time. ( P. 2 0 8 )
●Hybrid vehicles: The auto power off function will be operated if
the vehicle is left in ACCE SSORY or ON mode (the hybrid
system is not operating) for a period of time. ( P. 215)
The steering wheel cannot be turn
ed after the engine system> is stopped
The windows do not open or close by operating the power win-
dow switches
The “START STOP ENGINE” <“POWER”> switch is turned off
automatically

764What to do if... (Troubleshooting)
ES350_300h_OM_OM33B99U_(U)●
The seat belt remind
er light is flashing
Are the driver and the front passenger wearing the seat belts?
( P. 6 2 9 )
●The parking brake indicator is on
Is the parking brake released? ( P. 231)
Depending on the situation, ot her types of warning buzzer may
also sound. ( P. 626, 636)
●Did anyone inside the vehicle op en a door during setting the
alarm?
The sensor detects it and the alarm sounds. ( P. 8 8 )
To stop the alarm, turn the “START STOP ENGINE” <“POWER”>
switch to IGNITION ON mo de or start the engine system>.
●Is the electronic key left insid e the vehicle or the moon roof
opened?
Check the message on the multi-information display.
( P. 6 3 6 )
A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle

770Alphabetical index
ES350_300h_OM_OM33B99U_(U)
Emergency, in case ofIf a warning buzzer sounds..................................................626
If a warning light turns on...............626
If a warning message is displayed ....................................... 636
If the 12-volt battery is discharged ........................... 680, 684
If the electronic key does not operate properly ........ 677
If the engine will not start................ 672
If the hybrid system will not start ................................................ 674
If the shift lever cannot be shifted from P ............676
If you have a flat tire ......................... 659
If you think something is wrong...............................................624
If your vehicle becomes stuck ......................................................697
If your vehicle has to be stopped in an emergency ........... 615
If your vehicle needs to be towed .........................................617
If your vehicle overheats .... 688, 691
Emergency flashers ...............................614
Energy monitor ........................................ 114 Engine
Accessory mode ............................... 206
Compartment .....................................545
Engine switch ............................205, 212
Hood..........................................................541
How to start the engine..................205
How to start the hybrid system .................................................... 212
Identification number....................... 702
If the engine will not start ............... 672
Ignition switch (“POWER” switch).................................................... 212
Ignition switch (“START STOP ENGINE” switch) .........................205
Overheating..............................688, 691
“POWER” switch. ............................... 212
“START STOP ENGINE” switch ...................................................205
Engine compartment cover..............547
Engine coolant Capacity................................................. 707
Checking ...............................................553
Preparing and checking before winter ...................................... 341
Engine coolant temperature gauge ......................................................... 97
Engine immobilizer system ................. 84
Engine oil Capacity................................................. 705
Checking ...............................................548
Oil level warning message ........... 644
Oil pressure warning message........................... 637
Preparing and checking before winter ...................................... 341