Page 729 of 917
728
ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
■Engine compartment (type B fuse box) (hybrid vehicles only)
FuseAmpereCircuit
1BATT FAN7. 5Battery cooling fan
2INV W/PMP RLY7. 5INV W/PMP RLY
3DC/DC IGCT10Hybrid system
4INV7. 5Hybrid system
5BATT VL SSR10Hybrid system
6PM IGCT7. 5Power management system, hybrid system
7IGCT-MAIN25INV W/PMP RLY, INV, DC/DC IGCT,
BATT VL SSR, PM IGCT, BATT FAN
8INV W/PMP15Hybrid system
Page 731 of 917

730
ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
12WIPER25Windshield wipers
13BKUP LP7. 5
Multiport fuel injection system, sequential
multiport fuel system, electronic controlled
transmission, audio system, navigation sys-
tem, back-up lights
14FUEL OPN10Fuel filler door opener
15EPS-IG110Electric power steering
16P/O U T L E T R R15Po w e r o u t l e t
17RADIO-ACC5Audio system, Remote Touch, multi-informa-
tion display, audio display, navigation system
18S/HTR&FAN F/R10Seat heaters and ventilators
19S/HTR&FAN F/L10Seat heaters and ventilators
20OBD7. 5On-Board diagnosis system
21ECU-B NO.210
Power window master switch, air condition-
ing system, smart access system with push-
button start, tire pressure warning system,
rear sunshade
22STRG HTR10Heated steering wheel
23PTL25Power trunk opener and closer ECU
24STOP7. 5
Power management system, multiport fuel
injection system, sequential multiport fuel
system, VSC, ABS, electronic controlled
transmission, driver support system, engine
room junction block assy, tail lights, high
mounted stoplight, smart access system with
push-button start, shift lock system
25P/ S E AT F/ L30Po w e r s e a t s
26A/C-B7. 5Air conditioning system
27S/ROOF10Moon roof
28P/ S E AT F/ R30Po w e r s e a t s
29PSB30Pre-collision seat belt
30D/L-AM120Main body ECU, power door lock system
FuseAmpereCircuit
Page 748 of 917

747
ES350_300h_OM_OM33A60U_(U)
7When trouble arises
7-1. Essential informationEmergency flashers................... 748
If your vehicle has to be stopped in an emergency .....749 7-2. Steps to take in an emergency
If your vehicle needs to be towed .................................. 751
If you think something is wrong .................757
Fuel pump shut off system (gasoline vehicles) .................. 758
If a warning light turns on or a warning buzzer sounds ..... 759
If a warning message is displayed ................................. 769
If you have a flat tire................... 792
If the engine will not start (gasoline vehicles) ................. 805
If the hybrid system will not start (hybrid vehicles) ............ 807
If the shift lever cannot be shifted from P .................... 809
If the electronic key does not operate properly ...................... 810
If the 12-volt battery is discharged (gasoline
vehicles) ....................................... 813
If the 12-volt battery is discharged (hybrid
vehicles) ....................................... 817
If your vehicle overheats (gasoline vehicles) ................... 821
If your vehicle overheats (hybrid vehicles) ...................... 824
If the vehicle becomes stuck .............................................828
Page 749 of 917
748
ES350_300h_OM_OM33A60U_(U)
7-1. Essential information
Emergency flashers
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch once again.
■Emergency flashers
Gasoline vehicles: If the emergency flashers are used for a long time while the
engine is not operating, the 12-volt battery may discharge.
Hybrid vehicles: If the emergency flashers are used for a long time while the hybrid
system is not operating (while the “READY” indicator is not illuminated), the 12-volt
battery may discharge.
The emergency flashers are used to warn other drivers when the vehi-
cle has to be stopped in the road due to a breakdown, etc.
Ty p e AType B
Page 750 of 917

749
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
7-1. Essential information
If your vehicle has to be stopped in an emergency
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort required to
slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the engine .
If the shift lever cannot be shifted to N
Keep depressing the brake pedal wi th both feet to reduce vehicle
speed as much as possible.
Gasoline vehicles: To stop the
engine, press and hold the
“START STOP ENGINE” switch
for 2 consecutive seconds or
more, or press it briefly 3 times or
more in succession.
Hybrid vehicles: To stop the
hybrid system, press and hold the
“POWER” switch for 2 consecu-
tive seconds or more, or press it
briefly 3 times or more in succes-
sion.
Stop the vehicle in a safe place by the road.
Only in an emergency, such as if it becomes impossible to stop the vehi-
cle in the normal way, stop the vehicle using the following procedure:
1
2
3
4
3
Press and hold for 2 seconds or more
or press briefly 3 times or more
4
Press and hold for 2 seconds or more
or press briefly 3 times or more
5
Page 751 of 917
7507-1. Essential information
ES350_300h_OM_OM33A60U_(U)
CAUTION
■If the engine has to be turned off while driving
Power assist for the steering wheel will be lost, making the steering wheel heavier
to turn. Decelerate as much as possible before turning off the engine
tem>.
Page 752 of 917
751
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If your vehicle needs to be towed
The following may indicate a problem with your transmission
transmission>. Contact your Lexus dealer before towing.
●The engine is running but the vehicle will
not move.
●The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by
your Lexus dealer or a commercial towing service, using a lift-type
truck or flat bed truck.
Use a safety chain system for all towing, and abide by all state/provin-
cial and local laws.
Before towing
Page 756 of 917
7557-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
If your Lexus is transported by a flat
bed truck, it should be tied down at
the locations shown in the illustra-
tion.
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45 .
Do not overly tighten the tie downs
or the vehicle may be damaged.
■Before emergency towing Release the parking brake.
Shift the shift lever to N.
Gasoline vehicles: Turn the “START STOP ENGINE” switch to ACCESSORY
(engine off) or IGNITION ON (engine running) mode.
Hybrid vehicles: Turn the “POWER” swit ch to ACCESSORY (hybrid system off)
or ON (hybrid system operating) mode.
Using a flat bed truck
1
2
3