2020 LEXUS RX450H power steering

6598-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U
WARNING
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediat ely and contact your Lexus dealer. The vehi-
cle will become extremely unstable during br aking, and the ABS system may fail, which
could cause an accident resultin g in death or serious injury.
■When the electric power steering system warning light comes on
When the light comes on yellow, the assist to the power steering is restricted. When the
light comes on red, the assist to the power steering is lost and handling operations of
the steering wheel become extremely heavy. When steering wheel operations are
heavier than usual, grip the steering wheel firmly and operate it using more force than
usual.
■If the tire pressure warning light comes on
Be sure to observe the following precaution s. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire . Check the tires. If a tire is flat, change it
with the spare tire and have the flat tire repaired by the nearest Lexus dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

7169-1. Specifications
RX350/RX350L_U
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has no t been driven more than 1
mile or 1.5 km un der that condition
Maximum inflation pres-
sureThe maximum cold inflated pr essure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manu-
facturer
Accessory weight
The combined weight (in exce ss of those standard items
which may be replaced) of automatic transmission,
power steering, power brakes, power windows, power
seats, radio and heater, to the extent that these items are
available as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning and additional
weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the numb er of occupants specified
in the second column of Table 1* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in the
third column of Table 1
* below

753What to do if... (Troubleshooting)
RX350/RX350L_U
●Did you press the engine switch while firmly depressing the brake pedal?
( P. 231)
●Is the shift lever in P? ( P. 233)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 146)
●Is the steering wheel unlocked? ( P. 233)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. (P. 685)
●Is the battery discharged? ( P. 687)
●Is the engine switch in IGNITION ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
engine switch in IGNITION ON mode ( P. 239, 244)
●It is locked automatically to prevent theft of the vehicle. ( P. 233)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( P. 187)
●The auto power off function will be operated if the vehicle is left in
ACCESSORY or IGNITION ON mode (the engine is not operating) for a
period of time. ( P. 233)
If you think something is wrong
The engine does not start
The shift lever cannot be shifted from P even if you depress the brake
pedal
The steering wheel cannot be turned after the engine is stopped
The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically

762Alphabetical index
RX350/RX350L_U
Eco drive mode ..................................... 373
Eco Driving Indicator........................... 105
EDR (Event data recorder) ...................10
Electric Power Steering (EPS) ....... 378Warning light ...................................... 655
Electronic key ......................................... 120 Battery-saving function .....................147
If the electronic key does not operate properly............................ 684
Replacing the battery .......................623
Emergency flashers ............................. 644
Emergency, in case of If a warning buzzer sounds.......... 654
If a warning light turns on.............. 654
If a warning message is displayed.............................................. 661
If the battery is discharged ........... 687
If the electronic key does not operate properly............................ 684
If the engine will not start............... 682
If you have a flat tire ......................... 666
If you lose your keys .................. 121, 123
If you think something is wrong ...................................................652
If your vehicle becomes stuck .... 695
If your vehicle has to be stopped in an emergency .. 645
If your vehicle needs to be towed................................................... 646
If your vehicle overheats ................692 Engine
ACCESSORY mode ..................... 232
Compartment ..................................... 594
Engine switch ........................................ 231
Hood........................................................ 592
How to start the engine.................... 231
Identification number.......................700
If your vehicle has to be stopped in an emergency.......... 645
Ignition switch (engine switch) ..... 231
Overheating......................................... 692
Engine coolant Capacity................................................. 702
Checking .............................................. 598
Preparing and checking before winter ....................................384
Engine coolant temperature gauge ........................................................ 86
Engine immobilizer system .................. 74
Engine oil Capacity.................................................700
Checking ...............................................595
Preparing and checking before winter ....................................384
Engine oil maintenance data ............597
Engine switch ........................................... 231
Enhanced VSC ..................................... 378
EPS (Electronic Power Steering) ........ 378 Warning light .......................................655
Event data recorder (EDR)................... 10
E

768Alphabetical index
RX350/RX350L_U
Odometer ................................................ 104
OilEngine oil............................................... 700
Rear differential oil .............................703
Transfer oil .............................................703
Opener Fuel filler door ........................................ 271
Hood ........................................................592
Power back door .................................. 131
Outside rear view mirrors ................. 184 Adjusting and folding........................ 184
Blind Spot Monitor (BSM)............. 313
Linked mirror function when reversing .............................................. 185
Mirror position memory ................... 172
Outside rear view mirror defoggers ............................................ 513
Outside temperature display ............. 86
Overheating ........................................... 692
Paddle shift switches ................. 241, 242
Panic mode ................................................ 121
Panoramic moon roof ......................... 195 Jam protection function ................... 196
Operation ............................................... 195 Parking brake ......................................... 247
Parking brake engaged warning buzzer/message ......... 249
Warning light .......................................655
Parking lights Light switch........................................... 252
Replacing light bulbs .......................630
PCS (Pre-Collision System).............. 281 Warning light .......................................656
Personal lights ....................................... 526
Power back door ...................................130 Touchless power back door.......... 132
Wireless remote control................. 130
Power back door opener and closer .......................................................130
Power easy access system ................. 172
Power outlets ........................................... 551
Power steering (Electric Power Steering system)................................ 378 Warning light .......................................655
Power windows Door lock linked window operation ............................................. 189
Jam protection function................... 188
Operation................................................187
Window lock switch ..........................187
Pre-Collision System (PCS).............. 281 Warning light .......................................656
O
P

771Alphabetical index
RX350/RX350L_U
Service reminder indicators ............... 80
Shift leverAutomatic transmission ..... 236, 240
If the shift lever cannot be shifted from P................. 239, 244
Shift lock system.........................238, 243
Side airbags ............................................... 37
Side doors.................................................. 124
Side marker lights Light switch ........................................... 252
Replacing light bulbs ....................... 630
Side mirrors ............................................. 184 Adjusting and folding........................ 184
BSM (Blind Spot Monitor)............. 313
Heaters..................................................... 513
Side turn signal lights Replacing light bulbs ....................... 630
Turn signal lever .................................246
Smart access system with push-button start .................................146 Antenna location ................................. 146
Entry functions ............................ 124, 130
Starting the engine ..............................231
Snow tires ................................................ 386
Spare tire Inflation pressure ................................704
Storage location .................................667 Spark plug ................................................702
Specifications......................................... 698
Speedometer ............................................ 86
Sport mode ..............................................373
Steering wheel ....................................... 180
Adjustment............................................. 180
Audio switches .................................. 400
Heated steering wheel ................... 522
Power easy access system ............. 172
Telephone switches.......................... 465
Stop lights Replacing light bulbs .......................630
Storage feature ..................................... 528
Storage precautions ........................... 528
Stuck If the vehicle becomes stuck........695
Sun visors................................................. 543
Sunshade Panoramic moon roof.......................195
Rear door ..............................................554
Roof ............................................................ 192

772Alphabetical index
RX350/RX350L_U
SwitchesAll-wheel drive lock switch ........... 377
Audio remote control switches .............................................. 400
Automatic High Beam switch .....256
Brake hold switch ............................. 250
Cruise control switch...................... 300
Door lock switch ................................. 126
Driving mode select switch .......... 373
Driving position memory switches ................................................. 172
Electronic sunshade switch ........... 195
Emergency flashers switch ...........644
Engine switch .........................................231
Fog light switch .................................. 260
Garage door opener switches ...............................................557
Heated steering wheel switch ..... 522
HUD (Head-up display) switches ................................................108
Ignition switch ........................................231
Light switch ........................................... 252
LKA (Lane-Keeping Assist) switch....................................................295
Meter control switches ...................... 92
Moon roof switches............................. 191
“ODO/TRIP” switch ........................... 93 Outside rear view mirror
switches ................................................184
Paddle shift switches.............. 241, 242
Panoramic moon roof switches ................................................195
Parking brake switch ........................247
Power back door opener and closer switch .................... 131, 133
Power window switch .......................187
Rear window and outside rear view mirror
defoggers switch..............................513
Rear window wiper and washer switch .................................. 267
Seat heater switches ............ 522, 523
Seat ventilator switches .................. 523
“SOS” button ...................................... 568
Talk switch.................................465, 487
Telephone switches.......................... 465
Vehicle-to-vehicle distance button............................... 300
VSC OFF switch .............................. 380
Window lock switch ..........................187
Windshield wiper and washer switch .................................... 261

774Alphabetical index
RX350/RX350L_U
TransmissionAutomatic transmission ..... 236, 240
Driving mode select switch .......... 373
If the shift lever cannot be shifted from P ....................... 239, 244
M mode .................................................. 242
Paddle shift switches .............. 241, 242
S mode .................................................... 237
Trip meters ............................................... 104
Turn signal lights Replacing light bulbs ....................... 630
Turn signal lever .................................246
Wattage ................................................. 705
USB charging ports............................. 553
USB memory.......................................... 438
USB port .................................................. 403
Vanity lights............................................. 543 Wattage ................................................. 705
Vanity mirrors ........................................ 543 Vanity lights ..........................................543
VDIM (Vehicle Dynamics Integrated Manag ement) .............. 379
Vehicle data recordings .......................... 9
Vehicle Dynamics Integrated Management (VDIM) ..................... 379
Vehicle identification number ......... 699
Vehicle Stability Control (VSC) .... 378
Voice command system .................... 487
VSC (Vehicle Stability Control) .... 378 Warning buzzers
Approach warning .......................... 308
Downshifting ........................................ 243
Intuitive parking assist......................330
Lane departure alert function................................................ 292
Light reminder .................................... 254
Open door .............................................128
Pre-collision warning.........................281
Seat belt reminder.............................656
Vehicle sway warning ..................... 293
Warning lights ABS .......................................................... 654
Brake hold operated indicator ...655
Brake system ....................................... 654
Charging system ............................... 654
Electric power steering ..................655
ICS OFF indicator ............................656
LKA indicator ......................................655
Low fuel level .......................................656
Malfunction indicator lamp........... 654
Master warning light ........................ 657
Parking brake indicator ..................655
PCS warning light .............................656
Seat belt reminder light ..................656
Slip indicator ........................................655
SRS............................................................ 654
Tire pressure ........................................656
Warning messages................................ 661
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