2020 LEXUS RX350 hood open

4447-2. Steps to take in an emergency
If you have a set of jumper (or booster)
cables and a second vehicle with a bat-
tery, you can jump start your vehicle by
following the steps below.
1Confirm that the electronic key is
being carried.
When connecting the jumper (or booster)
cables, depending on the situation, the
alarm may activate and doors locked. (
 P.68)
2 Open the hood. ( P.363)
3 Connect a positive jumper cable clamp to on your vehicle and connect the
clamp on the other end of the positive cab le to on the second vehicle. Then,
connect a negative cable clamp to on the second vehicle and connect the
clamp at the other end of the negative cable to .
Positive (+) battery terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery terminal (second vehicle)
Solid, stationary, unpainted metallic poin t away from the battery and any mov-
ing parts as shown in the illustration
4 Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to recharge the battery of your vehi-
cle.
5 Open and close any of the doors of
your vehicle with the engine switch
off.
Restarting the engine
A
B
C
D
A
B
C
D

4487-2. Steps to take in an emergency
coolant is unavailable.
6Start the engine and turn the air
conditioning system on to check
that the radiator cooling fans oper-
ate and to check for coolant leaks
from the radiator or hoses.
The fans operate when the air conditioning
system is turned on immediately after a
cold start. Confirm that the fans are oper-
ating by checking the fan sound and air
flow. If it is difficult to check these, turn the
air conditioning system on and off repeat-
edly.
(The fans may not oper ate in freezing tem-
peratures.)
7 If the fans are not operating:
Stop the engine immediately and
contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the
nearest Lexus dealer.
8 Check if “Engine Coolant Temp
High Stop in a Safe Place See
Owner's Manual” is shown on the
multi-information display.
If the message does not disappear:
Stop the engine and contact your Lexus
dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer.
WARNING
■When inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious
injury such as burns.
●If steam is seen coming from under the
hood, do not open the hood until the
steam has subsided. The engine com-
partment may be very hot.
●Keep hands and clothing (especially a
tie, a scarf or a muffler) away from the
fans and belts.
Failure to do so may cause the hands
or clothing to be caught, resulting in
serious injury.
●Do not loosen the radiator cap and the
coolant reservoir cap while the engine
and radiator are hot.
High temperature steam or coolant
could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has
cooled down sufficiently. Adding cool
coolant to a hot engine too quickly can
cause damage to the engine.
■To prevent damage to the cooling sys-
tem
Observe the following precautions:
●Avoid contaminating the coolant with
foreign matter (such as sand or dust,
etc.).
●Do not use any coolant additive.

507Alphabetical Index
FuelCapacity ......................................................... 454
Fuel gauge ....................................................... 75
Fuel pump shut off system ...................... 412
Information ....................................................459
Refueling ........................................................ 202
Type.................................................................. 454
Warning light .................................................416
Fuel consumption Average fuel economy ..............................80
Current fuel consumption........................80
Fuel filler door If the fuel filler door cannot be opened.........................................................................440
Refueling ........................................................ 202
Fuel gauge ..........................................................75
Fuel pump shut off system.......................... 412
Fuses ...................................................................391
G
Garage door opener ................................. 339
Gauges ................................................................75
G-force............................................................... 82
Glove box ........................................................ 318
Glove box light .............................................. 318
Grocery bag hooks .................................... 322
H
Hands Free Power Back Door ............... 104
Head restraints ............................................... 137
Headlight aim ................................................ 392
Headlights Adaptive Front-lighting System (AFS)........................................................................... 192
Automatic High Beam system..............193
Light switch .................................................... 190
Replacing light bulbs................................395
Head-up display.............................................. 86 Driving information display area........... 86
Eco Driving Indicator ................................. 90
HUD (Head-up display) switch............ 87 Navigation system-linked display ........89
Settings.............................................................. 88
Heated steering wheel ............................... 310
Heaters Front automatic air conditioning system..........................................................................296
Heated steering wheel ............................. 310
Outside rear view mirrors.................... 298
Rear automatic air conditioning system
..........................................................................307
Seat heaters ................................................... 310
High mounted stoplight Replacing light bulbs ............................... 395
Hill-start assist control ............................... 278
Hood Open................................................................363
Hooks Cargo hooks................................................ 322
Cargo net hooks ........................................ 322
Coat hooks ...................................................336
Front passenger footwell hooks........ 338
Grocery bag hooks.................................. 322
Retaining hooks (floor mat) ..................... 24
Horn ................................................................... 140
HUD (Head-up display) switch ................ 87
I
I/M test ............................................................ 360
Identification Engine..............................................................453
Vehicle ............................................................452
If your vehicle has to be stopped in an emergency .................................................. 404
Ignition switch (engine switch)................. 176 Auto power off function............................179
Changing the engine switch modes ..179
If your vehicle has to be stopped in an emergency ................................................ 404
Indicators ............................................................72
Initialization Items to initialize ........................................ 483
Maintenance.................................... 356, 367

509Alphabetical Index
Turn signal lever .......................................... 184
Vanity lights ..................................................338
Wattage..........................................................458
Lock steering column .................................. 177
LTA (Lane Tracing Assist) Operation........................................................218
Warning messages .................................. 226
Luggage cover ............................................. 323
M
Maintenance Do-it-yourself maintenance ...................361
General maintenance ............................. 357
Maintenance data...................................... 452
Maintenance requirements ..................356
Malfunction indicator lamp .......................414
Master warning light ....................................419
Menu icons.........................................................79
Meter Clock .................................................................. 75
Indicators ...........................................................72
Instrument panel light control ................ 78
Meter control switches ..............................80
Meters ................................................................ 75
Multi-information display .......................... 79
Settings .............................................................. 83
Units .................................................................... 82
Warning lights ............................................... 413
Warning message..................................... 422
Micro dust and pollen filter ..................... 303
Mirrors Inside rear view mirror................................141
Outside rear view mirror defoggers298
Outside rear view mirrors ...................... 142
Vanity mirrors..............................................338
Moon roof Door lock linked moon roof operation.......................................................................... 148
Door lock linked panoramic moon roof operation ....................................................... 151
Jam protection function........................... 148
Operation........................................................ 147 Multi-information display .............................79
Audio system-linked display ...................83
AWD Control ................................................. 81
Drive information ......................................... 80
Driving assist system information .........83
Driving information display ..................... 80
Dynamic radar cruise control with full-speed range ......................................230
Eco Driving Indicator................................... 81
G-force .............................................................. 82
LTA (Lane Tracing Assist) .................... 223
Menu icons ...................................................... 79
Meter control switches ............................. 80
Navigation system-linked display ........83
Pop-up display ............................................... 79
Settings...............................................................83
Suggestion function .....................................84
Tire pressure ................................................ 373
Units..................................................................... 82
Warning message ..................................... 422
N
Navigation system-linked display... 83, 89
Noise from under vehicle ...............................6
O
“ODO TRIP” switch ...................................... 78
Odometer ......................................................... 78
Odometer and trip meter display Display items ................................................... 78
“ODO TRIP” switch .................................... 78
Pop-up display ............................................... 78
Oil Engine oil........................................................454
Rear differential oil......... ..................... ...... 456
Opener Fuel filler door ..............................................202
Hood ................................................................363
Outer foot lights Location ........................................................... 313
Outside door handle lig hts........................313