Page 881 of 908
881
ES350 300h_OM_OM33A01U_(U)
Index
What to do if... (Troubleshooting)................................882
Alphabetical index................................ 888
For vehicles with a navigation sy stem, refer to the “Navigation Sys-
tem Owner’s Manual” for information regarding the equipment
listed below.
• Navigation system
• Air conditioning controls
• Windshield wiper de-icer
• Audio/video system
• Rear window and outside rear view mirror defogging
• Lexus Enform with Safety Connect
Page 882 of 908

882What to do if... (Troubleshooting)
ES350 300h_OM_OM33A01U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys
can be made by your Lexus dealer. ( P. 121)
●If you lose your electronic ke ys, the risk of vehicle theft
increases significantly. Contact your Lexus dealer immediately.
( P. 122)
●Is the electronic key battery weak or depleted? ( P. 710)
●Is the “START STOP ENGINE” <“POWER”> switch in IGNI-
TION ON mode?
When locking the doors, turn the “START STOP ENGINE”
<“POWER”> switch off. ( P. 1 9 8 , 2 0 5 )
●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. 130)
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
Page 883 of 908
883What to do if... (Troubleshooting)
ES350 300h_OM_OM33A01U_(U)●
Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when
the lock is set. Open the re
ar door from outside and then
unlock the child-protector lock. ( P. 1 4 0 )
●The function to prevent the electronic key from being left inside
the trunk will operate and you ca n open the trunk as usual. Take
the key out from the trunk. ( P. 1 4 6 )
The rear door cannot be opened
The trunk lid is closed with the electronic key left inside
Page 884 of 908
884What to do if... (Troubleshooting)
ES350 300h_OM_OM33A01U_(U)●
Did you press the “START STOP ENGINE” <“POWER”>
switch while firmly depressing the brake pedal? (
P. 1 9 7 , 2 0 4 )
●Is the shift lever in P? ( P. 200, 207)
●Is the electronic key anywhere detectable inside the vehicle?
( P. 1 2 6 )
●Is the steering wheel unlocked? ( P. 201, 208)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a tem-
porary way. ( P. 803)
●Is the 12-volt battery discharged? ( P. 805, 809)
●Is the “START STOP ENGINE” <“POWER”> switch in IGNI-
TION 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. 8 0 1 )
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
Page 885 of 908
885What to do if... (Troubleshooting)
ES350 300h_OM_OM33A01U_(U)●
It is locked automatically to prevent theft of the vehicle.
(
P. 200, 207)
●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. 170)
●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. 200)
●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. 207)
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
Page 886 of 908
886What to do if... (Troubleshooting)
ES350 300h_OM_OM33A01U_(U)●
The seat belt remind
er light is flashing
Are the driver and the front passenger wearing the seat belts?
( P. 7 5 4 )
●The parking brake indicator is on
Is the parking brake released? ( P. 222)
Depending on the situation, ot her types of warning buzzer may
also sound. ( P. 751, 761)
●Did anyone inside the vehicle op en a door during setting the
alarm?
The sensor detects it and the alarm sounds. ( P. 8 4 )
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. 76 1 )
A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
Page 887 of 908
887What to do if... (Troubleshooting)
ES350 300h_OM_OM33A01U_(U)●
When a warning light turns on or a warning message is dis-
played, refer to P. 751, 761.
●Stop the vehicle in a safe place an
d replace the flat tire with the
spare tire. ( P. 7 8 4 )
●Try the procedure for when th e vehicle becomes stuck in mud,
dirt, or snow. ( P. 820)
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck
Page 888 of 908

888Alphabetical index
ES350 300h_OM_OM33A01U_(U)
Alphabetical index
A/CAir conditioning filter....................... 708
Automatic air conditioning system
*.................................. 347, 359
ABS (Anti-lock Brake System)
Function ................................................. 298
Warning light ....................................... 752
Air conditioning filter .......................... 708
Air conditioning system
*
Air conditioning filter....................... 708
Automatic air conditioning system
*.................................. 347, 359 Airbags
Airbag operating conditions .......... 46
Airbag precautions for your child ......................................... 41
Airbag warning light ........................ 752
Correct driving posture .................... 30
Curtain shield airbag operating conditions ....................... 46
Curtain shield airbag precautions .......................................... 43
Front passenger occupant classification system......................... 49
General airbag precautions ............. 41
Locations of airbags............................ 38
Modification and disposal of airbags............................................... 45
Side airbag operating conditions ............................................. 46
Side airbag precautions ...................... 41
Side and curtain shield airbags operating conditions ....................... 46
Side and curtain shield airbags precautions ........................... 41
SRS airbags ............................................. 38
Alarm ........................................................... 84 Warning buzzer.........................751, 761
Anchor brackets...................................... 59
Antennas (smart access system with push-button start) ..................... 125
Anti-lock Brake System (ABS) Function .................................................. 298
Warning light ....................................... 752
Approach warning (dynamic radar cruise control).........................254
Armrest .....................................................622
A