check engine LEXUS RX350 2022 Repair Manual

4338-1. Specifications
8
Vehicle specifications
quantity to be used when changing the
engine oil. Warm up and turn off the
engine, wait more than 5 minutes, and
check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in
your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil”
or equivalent to satisfy the following
grade and viscosity.
Oil grade: ILSAC GF-6A multigrade
engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good starting
in cold weather.
If SAE 0W-20 is not available, SAE
5W-20 oil may be used. However, it
must be replaced with SAE 0W-20 at
the next oil change.
Outside temperature
Oil viscosity (0W-20 is explained here
as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allows
cold startability. Oils with a lower
value before the W allow for easier
starting of the engine in cold
weather. • The 20 in 0W-20 indicates the vis-
cosity characteristic of the oil when
the oil is at high temperature. An oil
with a higher viscosity (one with a
higher value) may be better suited if
the vehicle is operated at high
speeds, or under extreme load con-
ditions.
How to read oil container label:
The International Lubricant Specifica-
tion Advisory Committee (ILSAC)
Certification Mark is added to some oil
containers to help you select the oil you
should use.
A

478What to do if... (Troubleshooting)
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your mechanical keys,
new genuine mechanical keys can
be made by your Lexus dealer.
( P.419)
 If you lose your electronic keys, the
risk of vehicle theft increases signifi-
cantly. Contact your Lexus dealer
immediately. ( P.419)
 Is the electronic key battery weak or
depleted? ( P.369)
 Is the engine switch in IGNITION
ON mode?
When locking the doors, turn the engine
switch off. ( P.173)
 Is the electronic key left inside the
vehicle?
When locking the door s, make sure that
you have the electronic key on your per-
son.
 The function may not operate prop-
erly due to the condition of the radio
wave. ( P.114)
 Is the child-protector lock set?
The rear door cannot be opened from
inside the vehicle when the lock is set.
Open the rear door fr om outside and then
unlock the child-protector lock. ( P.100)
Did you press the engine switch
while firmly depressing the brake
pedal? ( P.170)
 Is the shift lever in P? ( P.170)
 Is the electronic key anywhere
detectable inside the vehicle?
( P.113)
 Is the steering wheel unlocked?
( P.171)
 Is the electronic key battery weak or
depleted?
In this case, the engine can be started in a
temporary way. ( P.422)
 Is the battery discharged?
( P.423)
If you have a problem, check the
following before contacting your
Lexus dealer.
The doors cannot be locked,
unlocked, opened or closed
You lose your keys
The electronic key does not
operate properly
The doors cannot be locked or
unlocked
The rear door cannot be opened
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

479What to do if... (Troubleshooting)
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.175)
It is locked automatically to prevent
theft of the vehicle. ( P.171)
 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.142)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or IGNITION ON
mode (the engine is not running) for
a period of time. ( P.173)
 The seat belt reminder light is flash-
ing
Are the driver and the passengers wearing
the seat belts? ( P.396)
The parking brake indicator is on
Is the parking brake released? ( P.179)
Depending on the situation, other
types of warning buzzer may also
sound. (P.393, 402)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
(P.67)
Do one of the following to stop the
alarms:
 Unlock the doors.
 Turn the engine switch to ACCES-
SORY or IGNITION ON mode, or
start the engine.
 Is the message displayed on the
multi-information display?
Check the message on the multi-informa-
tion display. ( P.402)
When a warning light turns on or a
warning message is displayed, refer
to P.393, 402.
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
A warning buzzer sounds during
driving
An alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle
A warning light turns on or a
warning message is displayed
When a problem has occurred
If you have a flat tire

484Alphabetical Index
If the vehicle is submerged or water on the road is rising..................................... 385
If you have a flat tire ..................................406
If you lose your keys...................................419
If you think something is wrong ...........391
If your vehicle becomes stuck............. 428
If your vehicle has to be stopped in an
emergency ................................................384
If your vehicle needs to be towed ..... 387
If your vehicle overheats ........................ 426
Engine ACCESSORY mode ............................... 173
Compartment ...............................................351
Engine switch.................................................170
Fuel pump shut off system .................... 392
Hood................................................................ 349
How to start the engine ............................170
Identification number ................................. 431
If the engine will not start ........................ 418
If your vehicle has to be stopped in an
emergency ................................................384
Ignition switch (engine switch) .............170
Overheating................................................. 426
Tachometer ..................................................... 75
Engine coolant Capacity ......................................................... 434
Checking ....................................................... 353
Preparing and checking before winter........................................................................... 271
Engine coolant temperature gauge ........75
Engine immobilizer system ........................ 66
Engine oil Capacity ......................................................... 432
Checking .........................................................351
Preparing and checking before winter........................................................................... 271
Warning light ............................................... 394
Engine oil maintenance data .................. 353
Engine switch ..................................................170 Auto power off function ........................... 173
Changing the engine switch modes.. 173 If your vehicle has to be stopped in an
emergency ................................................ 384
EPS (Electric Power Steering) .............. 266 Warning light .............................................. 395
Event data recorder (EDR) ........................... 8
F
Flat tire Tire pressure warning system ............ 359
Vehicles with a spare tire...................... 406
Floor mats .......................................................... 24
Fluid Automatic transmission ..........................435
Brake ................................................................436
Washer .......................................................... 356
Fog lights Switch................................................................ 190
Footwell light .................................................300
Front automatic air conditioning system .......................................................................... 284
Front fog lights Replacing light bulbs................................375
Front passenger footwell hooks ............ 325
Front passenger occupant classification system .............................................................. 39
Front seats Adjustment ....................................................... 117
Cleaning .........................................................339
Correct driving posture ............................ 25
Driving position memory .........................129
Head restraints..............................................132
Memory recall function.............................. 131
Power easy access system .....................129
Seat heaters .................................................. 297
Seat position memory ...............................129
Seat ventilators ............................................ 297
Front side marker light Light switch .................................................... 184
Replacing light bulbs................................375
Front side marker lights Replacing light bulbs................................375
Wattage .......................................................... 437

491Alphabetical Index
Rear window and outside rear view mir-ror defoggers switch ............................ 284
Seat heater switches ................................ 297
Seat ventilator switches .......................... 297
“SOS” button .................................................. 60
Tilt and telescopic steering control switch ...........................................................................135
Tire pressure warning reset switch ....361
Vehicle-to-vehicle distance switch ...222
VSC OFF switch ....................................... 267
Window lock switch .................................. 142
Windshield wiper and washer switch190
Windshield wiper de-icer switch ......289
T
Tachometer........................................................75 Rev indicator ................................................... 76
Rev peak ............................................................ 77
Tail lights Light switch .................................................... 184
Replacing light bulbs................................ 375
The Secondary Collision Brake ............ 266
Theft deterrent system Alarm .................................................................. 67
Engine immobilizer system ..................... 66
Tire inflation pressure Maintenance data...................................... 436
Tire inflation pressure display function.........................................................................359
Warning light ............................................... 397
Tire information ............................................ 440 Glossary......................................................... 444
Size.................................................................... 442
Tire identification number ....................... 441
Uniform Tire Quality Grading............ 442
Tire pressure display .................................. 359
Tire pressure warning system Function ..........................................................359
Initializing .........................................................361
Installing tire pressure warning valves and transmitters ........................................361
Registering ID codes ............................... 363 Warning light ............................................... 397
Tires Chains ............................................................. 272
Checking ....................................................... 357
If you have a flat tire ................................. 406
Inflation pressure ........................................363
Information ................................................... 440
Replacing ...................................................... 406
Rotating tires ............................................... 359
Size ....................................................................436
Snow tires ........................................................ 271
Spare tire ....................................................... 406
Tire inflation pressure display function......................................................................... 359
Tire pressure warning system ............ 359
Warning light ............................................... 397
Tools.................................................................. 407
Top tether strap............................................... 57
Total load capacity ...................................... 430
Towing Dinghy towing .............................................. 169
Emergency towing....................................387
Towing eyelet.............................................. 389
Trailer towing ................................................ 159
TRAC (Traction Control) ........................ 266
Traction Control (TRAC) ........................ 266
Trailer Sway Control.................................. 266
Trailer towing ..................................................159
Transmission Automatic transmission ............................174
Driving mode select switch .................. 262
M mode ............................................................ 177
Paddle shift switches ........................176, 177
Trip meters ........................................................ 78
Turn signal lights Replacing light bulbs................................375
Turn signal lever .......................................... 178
Wattage .......................................................... 437
U
USB charging ports......................................314

492Alphabetical Index
V
Vanity lights.................................................... 325Wattage.......................................................... 437
Vanity mirrors ............................................... 325
VDIM (Vehicle Dynamics Integrated Man- agement)...................................................... 266
Vehicle data recording ....................................7
Vehicle Dynamics Integrated Manage- ment (VDIM).............................................. 266
Vehicle identification number ..................431
Vehicle Stability Control (VSC) ........... 265
Ventilators (seat ventilators)................... 297
VSC (Vehicle Stabilit y Control) ........... 265
W
Warning buzzers
Approach warning.................................... 228
Brake Override System .........................395
Door lock.......................................................... 98
Downshifting ........................................177, 178
Drive-Start Control ..................................395
Electric power steering ..........................395
Hands off steering wheel warning (LTA)...........................................................................218
High coolant temperature .................... 393
Intuitive parking assist.................. 244, 397
Low engine oil pressure......................... 394
LTA (Lane Tracing Assi st)..211, 214, 397
Open door..................................................... 100
Open window .................................................141
PKSA (Parking Support Alert) ........... 236
PKSB (Parking Support Brake) .........398
Pre-collision braking................................205
RCTA (Rear Cross Traffic Alert) ...... 397
Seat belt .......................................................... 396
Warning lights............................................... 393 ABS ..................................................................395
Brake hold operated indicator ...........399
Brake Override System .........................395
Brake system ............................................... 393
Charging system ....................................... 394 Drive-Start Control.................................. 395
Electric power steering.......................... 395
High coolant temperature.....................393
Intuitive parking assist OFF indicator397
Low engine oil pressure.........................394
Low fuel level .............................................. 396
LTA indicator ............................................... 397
Malfunction indicator lamp ...................394
Master warning light................................ 399
Parking brake indicator ......................... 399
PKSB OFF indicator ............................... 398
Pre-collision system................................. 398
RCTA OFF indicator ............................... 397
Seat belt reminder light.......................... 396
Slip indicator................................................ 398
SRS ....................................................................394
Tire pressure ................................................ 397
Warning messages ..................................... 402
Washer Adding............................................................ 356
Preparing and checking before winter............................................................................ 271
Switch................................................................ 190
Washing and waxing.................................. 336
Weight Cargo capacity ................................. 155, 158
Load limits ...................................................... 158
Weight............................................................ 430
Wheels ............................................................. 365 Size ....................................................................436
Window lock switch ..................................... 142
Windows Power windows ........................................... 140
Rear window defogger.......................... 286
Washer ............................................................ 190
Windshield wiper de-icer ..........................291
Windshield wiper inserts .......................... 368
Windshield wipers Position..............................................................192
Rain-sensing windshield wipers .......... 190
Replacing a windshield wiper insert 368
Winter driving tips......................................... 271