fuse box LEXUS IS300 2021 Owners Manual

2956-3. Do-it-yourself maintenance
6
Maintenance and care
IS350 AWD/IS350/IS300 AWDFuse boxes ( P.318)
Battery ( P.301)
Engine oil level dipstick ( P.296)
Engine coolant reservoir ( P.298)
Engine oil filler cap ( P.297)
Brake fluid reservoir ( P.300)
Washer fluid tank ( P.302)
Electric cooling fans
Condenser ( P.300)
Radiator ( P.300)
Engine compartment
Components
A
B
C
D
E
F
G
H
I
J

2966-3. Do-it-yourself maintenance
IS300Fuse boxes ( P.318)
Battery ( P.301)
Intercooler
Engine oil level dipstick ( P.296)
Engine oil filler cap ( P.297)
Engine coolant reservoir ( P.298)
Brake fluid reservoir ( P.300)
Washer fluid tank ( P.302)
Electric cooling fans
Condenser ( P.300)
Intercooler radiator ( P.300)
Radiator ( P.300)
Intercooler coolant reservoir ( P.298)
With the engine at operating tempera-
ture and turned off, check the oil level on the dipstick.
■Checking the engine oil
1 Park the vehicle on level ground.
After warming up the engine and
A
B
C
D
E
F
G
H
I
J
K
L
M
Checking and adding the engine
oil

3186-3. Do-it-yourself maintenance
1Turn the engine switch off.
2 Open the fuse box cover.
Engine compartment: type A fuse
box
Push the tab in and lift the lid off.
Engine compartment: type B fuse
box
Push the tab in and lift the lid off.
Driver’s side instrument panel
Remove the lid.
3Remove the fuse with the pullout
tool.
Only type A fuses can be removed
using the pullout tool.
4 Check if the fuse is blown.
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 and D:
Contact your Lexus dealer.
Type A
Normal fuse
Checking and replacing
fuses
If any of the electrical components
do not operate, a fuse may have
blown. If this happens, check and
replace the fuses as necessary.
Checking and replacing fuses
A

3196-3. Do-it-yourself maintenance
6
Maintenance and care
Blown fuse
Type BNormal fuse
Blown fuse
Type CNormal fuse
Blown fuse
Type DNormal fuse
Blown fuse
■After a fuse is replaced
●If the lights do not turn on even after the
fuse has been replaced, a bulb may need
replacement.
●If the replaced fuse blows again, have the
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 cir-
cuits designed to prevent overload,
non-genuine parts or parts not designed for
this vehicle may be unusable.
B
A
B
A
B
A
B
WARNING
■To prevent system breakdowns and
vehicle fire
Observe the following precautions.
Failure to do so may cause damage to
the 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.

425Alphabetical Index
Refueling ........................................................... 161
Fuel gauge ................................................... 71, 72
Fuel pump shut off system........................ 336
Fuses .................................................................. 318
G
Garage door opener ................................. 273
Gauges ................................................................. 71
Gear Position.....................................................81
G-force............................................................... 80
Glove box ....................................................... 266
Glove box light ..............................................267
H
Head restraints ..................................................111
Headlight aim ................................................ 320
Headlights Automatic High Beam system............... 151
Light switch .....................................................149
Replacing light bulbs................................ 322
Heated steering wheel ................................ 261
Heaters Automatic air conditioning system ... 253
Heated steering wheel.............................. 261
Outside rear view mirrors .................... 255
Seat heaters .................................................... 261
High mounted stoplight Replacing light bulbs................................ 322
Hill-start assist control ............................... 238
Hood Open ............................................................... 293
Hooks Coat hooks ................................................... 270
Retaining hooks (floor mat)......................22
Horn ..................................................................... 114
I
I/M test ............................................................ 290
Identification Engine ............................................................. 373 Vehicle ............................................................ 372
Ignition switch (engine switch).................134 Auto power off function........................... 136
Changing the engine switch modes . 136
If your vehicle has to be stopped in an emergency .................................................328
Indicators ........................................................... 68
Initialization Items to initialize ........................................ 404
Maintenance.................................... 286, 298
Power windows ............................................. 118
Tire pressure warning system ............ 308
Inside door handle ligh ts........................... 263
Inside rear view mirror ................................. 114
Instrument panel light control ................... 75
Intercooler......................................................300
Intercooler coolant Capacity ......................................................... 376
Checking ...................................................... 298
Interior lights.................................................. 263 Front interior light ......................................263
Rear interior light........................................263
Intuitive parking assist......................208, 210 Function ........................................................... 210
Warning message ....................................... 212
J
JackPositioning a floor jack ............................293
Vehicle-equipped jack .......................... 350
Jack handle ....................................................350
Jam protection function Moon roof ........................................................ 121
Power windows ............................................. 118
K
Keyless entrySmart access system with push-button start ...................................................................99
Wireless remote control ...........................90