check engine Lexus ES300h 2013 Workshop Manual

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 keys, the risk of vehicle theft
increases significantly. Contact your Lexus dealer immediately.
(→ P. 122)
●Is the electronic key battery weak or depleted? ( →P. 7 1 0 )
●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. 198, 205)
●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 properly due to the condition of
the radio wave. ( →P. 1 3 0 )
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

886What to do if... (Troubleshooting)
ES350 300h_OM_OM33A01U_(U)●
The seat belt reminder 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, othe r types of warning buzzer may
also sound. ( →P. 751, 761)
●Did anyone inside the vehicle open 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 mode or start the engine system>.
●Is the electronic key left inside 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 wh en leaving the vehicle

892Alphabetical index
ES350 300h_OM_OM33A01U_(U)
Emergency, in case ofIf the 12-volt battery is
discharged ........................... 805, 809
If the electronic key
does not operate properly ....... 802
If the engine will not start................ 797
If the hybrid system will not start ................................................799
If the shift lever cannot be shifted from P .............801
If the warning buzzer sounds................................................... 751
If the warning light turns on............ 751
If the warning message is displayed ..........................................761
If you have a flat tire ..........................784
If you think something is wrong...............................................749
If your vehicle becomes stuck ..................................................... 820
If your vehicle has to be stopped in an emergency ............741
If your vehicle needs to be towed ....................................... 743
If your vehicle overheats ...... 813, 816
Emergency flashers ............................. 740
Energy monitor ........................................ 110 Engine
Accessory mode ................................ 198
Compartment ..................................... 673
Engine switch ............................197, 204
Hood........................................................669
How to start the engine.................... 197
How to start the hybrid system .................................................. 204
Identification number ....................... 826
If the engine will not start ............... 797
Ignition switch (“POWER” switch).................................................. 204
Ignition switch (“START STOP ENGINE” switch) ........................... 197
Overheating................................813, 816
“Power” switch. ................................... 204
“START STOP ENGINE” switch ..................................................... 197
Engine compartment cover..............675
Engine coolant Capacity .................................................. 831
Checking ................................................ 681
Preparing and checking before winter .................................... 326
Engine coolant temperature gauge .........................................................93
Engine immobilizer system ................. 80
Engine oil Capacity ................................................. 829
Checking ............................................... 676
Oil level warning message ........... 769
Oil pressure warning message........................... 762
Preparing and checking
before winter .................................... 326