2015 Lexus ES300h horn

6758-2. Steps to take in an emergency
ES350_300h_OM_OM33B36U_(U)
8
When trouble arises
One of the following may be the cause of the problem:
●One or both of the 12-volt battery terminals may be disconnected.
●The 12-volt battery may be discharged. (→P. 6 8 4 )
Contact your Lexus dealer if the problem cannot be repaired, or if repair proce-
dures are unknown.
When the hybrid system does not start, the following steps can be used as
an interim measure to start the hybrid system if the “POWER” switch is
functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the “POWER” switch to ACCESSORY mode.
Press and hold the “POWER” switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the system
may be malfunctioning. Have the vehicle inspected by your Lexus dealer.
The interior lights and headlights do not turn on, or the horn does
not sound.
Emergency start function
1
2
3
4

764What to do if... (Troubleshooting)
ES350_300h_OM_OM33B36U_(U)●
The seat belt reminder 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. 2 3 1 )
Depending on the situation, othe r types of warning buzzer may
also sound. ( →P. 626, 636)
●Did anyone inside the vehicle open a door during setting the
alarm?
The sensor detects it and the alarm sounds. ( →P. 88)
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. 6 3 6 )
A warning buzzer sounds during driving
An alarm is activated
and the horn sounds
A warning buzzer sounds wh en leaving the vehicle

772Alphabetical index
ES350_300h_OM_OM33B36U_(U)
Hands-free system (for cellular phone)
*..........................419
Head restraints ........................................165
Headlights Discharge headlights
precautions........................................... 611
Light switch ........................................... 233
Replacing light bulbs............................... 600, 601, 610
Wattage ....................................................714
Heaters
Air conditioning system ..................................................464
Heated steering wheel ....................478
Seat heaters ..........................................478
Outside rear view mirrors .............470
High-voltage components ................... 77
Hill-start assist control ..........................319
Hood ............................................................541
Warning message .............................. 641
Hooks
Cargo hooks ....................................... 488
Coat hooks .......................................... 499
Grocery bag hooks......................... 488
Retaining hooks (floor mat) .............28
Horn ........................................................... 232
Hybrid battery (traction battery) ................................... 77
Hybrid battery
(traction battery) air vents ................ 78 Hybrid system............................................ 73
Emergency shut off system ............. 78
Energy monitor/consumption screen ...................................................... 112
EV drive mode ..................................... 219
High voltage components ................ 77
Hybrid System Indicator ................. 100
Hybrid system precautions .............. 77
Hybrid vehicle driving tips ............338
If the hybrid system will not start ............................................... 674
Overheating...........................................691
“Power” (ignition) switch ................. 212
Starting the hybrid system............... 212
Vehicle proximity notification system ......................................................74
Hybrid System Indicator .................... 100
Hybrid transmission .............................226 If the shift lever cannot be shifted from P ................................... 676
H