Page 447 of 608
447
ES300h_OM_OM33D45U_(U)7-3. Do-it-yourself maintenance
7
Maintenance and care
Engine compartment
■12-volt battery
→
P. 457
Washer fluid tank ( →P. 456)
Fuse boxes (→ P. 480)
Power control unit coolant
reservoir ( →P. 453)
Engine oil level dipstick (→P. 449)
Engine oil filler cap (→ P. 450)Engine coolant reservoir
(→P. 453)
Brake fluid reservoir ( →P. 455)
Power control unit coolant
radiator (→ P. 454)
Electric cooling fans
Condenser ( →P. 454)
Engine coolant radiator (→P. 454)1
2
3
4
5
6
7
8
9
10
11
Page 480 of 608
480
ES300h_OM_OM33D45U_(U)7-3. Do-it-yourself maintenance
Checking and replacing fuses
Turn the power switch off.
Open the Fuse box cover.
If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and repl
ace the fuses as necessary.
1
2
Engine compartment (right side)Engine compartment (left side)
Push the tab in and lift the lid off. Push the tab in and lift the lid off.
Driver’s side instrument panel
Remove the lid.
Page 481 of 608
ES300h_OM_OM33D45U_(U)
4817-3. Do-it-yourself maintenance
7
Maintenance and care
Remove the fuse with the pullout
tool.
Only type A fuse can be removed using
the pullout tool.
Check if the fuse is blown.Normal fuse
Blown fuse
Type A and B:
Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the fuse box lid.
Type C:
Contact your Lexus dealer.
3
4
1
2
Type AType B
Type C
Page 482 of 608

482
ES300h_OM_OM33D45U_(U)7-3. Do-it-yourself maintenance
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. (
→P. 483)
●If the replaced fuse blows again, have th e vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine Lexus products designed for this vehicle.
Because certain bulbs are connected to circui ts designed to prevent overload, non-gen-
uine parts or parts not designed for this vehicle may be unusable.
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to th e vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than that indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus dealer as
soon as possible.
Page 593 of 608

593Alphabetical index
ES300h_OM_OM33D45U_(U)
Enhanced VSC ......................................272
EPS (Electronic Po wer Steering)
Function .................................................. 273
Warning light ...................................... 504
EV drive mode......................................... 173
Event data recorder (EDR) .................... 11
Flat tire ....................................................... 513
Floor mats ................................................... 28
Fluid Brake ........................................................544
Hybrid transmission..........................544
Washer .................................................. 456
Fog lights Switch........................................................ 189
Footwell light .......................................... 396
Front passenger occupant classification system ............................ 46
Front personal lights............................ 397
Front seats Adjustment ............................................. 129
Cleaning .................................................433
Correct driving posture ....................30
Driving position memory ................ 130
Head restraints ..................................... 135
Power easy access system ............ 130
Seat heaters ......................................... 395
Seat position memory....................... 130
Seat ventilators ................................... 395 Front side marker lights
Light switch.............................................182
Replacing light bulbs .......................489
Wattage ................................................. 546
Front turn signal lights Replacing light bulbs ....................... 487
Turn signal lever .................................. 180
Wattage ................................................. 546
Fuel Capacity.................................................540
Fuel gauge ............................................... 86
Information............................................ 547
Refueling ..................................................194
Type..........................................................540
Warning light .......................................504
Fuel filler door.......................................... 194 Refueling ..................................................194
When the fuel filler door cannot be opened ...........................196
Fuses.......................................................... 480
Garage door opener..............................411
Gauges........................................................ 86
Glove box ............................................... 400
Grocery bag hooks............................. 403
F
G