2022 LEXUS RX350 fill up

3556-3. Do-it-yourself maintenance
6
Maintenance and care
only newly opened brake fluid.
Check the battery as follows.
■Battery exterior
Make sure that the battery terminals
are not corroded and that there are no
loose connections, cracks, or loose
clamps.
Terminals
Hold-down clamp
■Before recharging
When recharging, the battery produces
hydrogen gas which is flammable and
explosive. Therefore, observe the following
precautions before recharging:
●If recharging with th e battery installed on
the vehicle, be sure to disconnect the
ground cable.
●Make sure the power switch on the char-
ger is off when connecting and discon-
necting the charger cables to the battery.
■After recharging/reconnecting the bat-
tery
●The engine may not start. Follow the pro-
cedure below to initialize the system.
1 Shift the shift lever to P.
2 Open and close any of the doors.
3 Restart the engine.
●Unlocking the doors using the smart
access system with push-button start may
not be possible immediately after recon-
necting the battery. If this happens, use
the wireless remote control or the
mechanical key to lo ck/unlock the doors.
●Start the engine with the engine switch in
ACCESSORY mode. The engine may
not start with the engine switch turned off.
However, the engine will operate nor-
mally from the second attempt.
●The engine switch mode is recorded by
the vehicle. If the battery is reconnected,
the vehicle will return the engine switch
mode to the status it was in before the
battery was disconnected. Make sure to
turn off the power before disconnect the
battery. Take extra care when connecting
the battery if the engine switch mode
prior to discharge is unknown.
If the system will not start even after multiple
attempts at all the methods above, contact
your Lexus dealer.
WARNING
■When filling the reservoir
Take care as brake fluid can harm your
hands and eyes and damage painted sur-
faces.
If fluid gets on your hands or in your eyes,
flush the affected area with clean water
immediately.
If you still experience discomfort, see a
doctor.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level to go
down slightly as the brake pads wear out
or when the fluid level in the accumulator
is high.
If the reservoir need s frequent refilling,
there may be a serious problem.
Battery
A
B

3566-3. Do-it-yourself maintenance
If any washer does not work or the
warning message appears on the
multi-information display, the washer
tank may be empty. Add washer fluid.
WARNING
■Chemicals in the battery
Batteries contain poisonous and corro-
sive sulfuric acid and may produce
hydrogen gas which is flammable and
explosive. To reduce the risk of death or
serious injury, take the following precau-
tions while working on or near the bat-
tery:
●Do not cause sparks by touching the
battery terminals with tools.
●Do not smoke or light a match near the
battery.
●Avoid contact with eyes, skin and
clothes.
●Never inhale or swallow electrolyte.
●Wear protective sa fety glasses when
working near the battery.
●Keep children away from the battery.
■Where to safely charge the battery
Always charge the battery in an open
area. Do not charge the battery in a
garage or closed room where there is
insufficient ventilation.
■How to recharge the battery
Only perform a slow charge (5 A or
less). The battery may explode if charged
at a quicker rate.
■Emergency measures regarding
electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water for at
least 15 minutes and get immediate
medical attention. If possible, continue
to apply water with a sponge or cloth
while traveling to the nearest medical
facility.
●If electrolyte gets on your skin
Wash the affected area thoroughly. If
you feel pain or burning, get medical
attention immediately.
●If electrolyte gets on your clothes
It can soak through clothing on to your
skin. Immediately take off the clothing
and follow the procedure above if nec-
essary.
●If you accidentally swallow electrolyte
Drink a large quantity of water or milk.
Get emergency medical attention
immediately.
■When there is insufficient battery
fluid
Do not use if there is insufficient fluid in
the battery. There is a possible danger
that the battery may explode.
NOTICE
■When recharging the battery
Never recharge the battery while the
engine is running. Also, be sure all acces-
sories are turned off.
■When adding distilled water
Avoid overfilling. Water spilled during
battery recharging may cause corrosion.
Washer fluid

383
7
7
When trouble arises
When trouble arises
.7-1. Essential informationEmergency flashers.................. 384
If your vehicle has to be stopped in an emergency .......................... 384
If the vehicle is submerged or water on the road is rising
........................................................ 385
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................ 387
If you think something is wrong ......................................................... 391
Fuel pump shut off system ..... 392
If a warning light turns on or a warning buzzer sounds ....... 393
If a warning message is displayed ........................................................ 402
If you have a flat tire.................. 406
If the engine wi ll not start ........418
If you lose your keys .................. 419
If the fuel filler door cannot be opened........................................ 420
If the electronic key does not operate properly ..................... 421
If the vehicle battery is discharged ........................................................ 423
If your vehicle overheats ........ 426
If the vehicle becomes stuck ........................................................ 428

3997-2. Steps to take in an emergency
7
When trouble arises
■Parking brake indicator
■Brake hold operated indicator
■Master warning light
■Warning buzzer
In some cases, the bu zzer may not be heard
due to being in a noisy location or audio
sound.
■Front passenger detection sensor, seat
belt reminder and warning buzzer
●If luggage is placed on the front passen-
ger seat, the front passenger detection
sensor may cause the warning light to
flash and the warning buzzer to sound
even if a passenger is not sitting in the
seat.
●If a cushion is placed on the seat, the sen-
sor may not detect a passenger, and the
warning light may not operate properly.
■SRS warning light
This warning light sy stem monitors the airbag sensor assembly, front impact sen-
sors, side impact sensor
s (front door), side
impact sensors (rear), driver’s seat position
sensor, driver’s seat belt buckle switch, front
passenger occupant classification system
(ECU and sensors), “AIR BAG ON” indica-
tor light, “AIR BAG OFF” indicator light,
front passenger’s seat belt buckle switch,
driver’s seat belt pr etensioner, front passen-
ger’s seat belt pretensioner and force lim-
iter, airbags, interconnecting wiring and
power sources. ( P.30)
■If the malfunction in dicator lamp comes
on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
Warning lightDetails/Actions
(flashes) (U.S.A.)
or
(flashes)
(Canada)
It is possible that the parking brake is not fully engaged or released
 Operate the parking brake switch once again.
This light comes on when the parking brake is not released. If the light
turns off after the parking brake is fu lly released, the system is operating
normally.
Warning lightDetails/Actions
(flashes)
Indicates a malfunction in the brake hold system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
A buzzer sounds and the warning light comes on and flashes to indicate
that the master warning system has detected a malfunction.
P.402

4207-2. Steps to take in an emergency
RX350
If the fuel filler door cannot be opened
by pressing the rear edge of the fuel
filler door with th e doors unlocked,
remove the cover inside the luggage
compartment and pull the lever to
open the fuel filler door.
RX350L
If the fuel filler door cannot be opened
by pressing its rear edge with the doors
unlocked, remove the cover inside the
luggage compartment using a tool,
such as a flathead screwdriver, and pull
the lever to open the fuel filler door.
When using a screwdri ver, make sure to wrap its tip with tape to protect the cover.
If the fuel filler door cannot
be opened
If the fuel filler door cannot be
opened by pressing the center of
the rear edge of the fuel filler door
with the doors unlocked, contact
your Lexus dealer to service the
vehicle. In case where refueling is
urgently necessary, the following
procedure can be used to open the
fuel filler door.
Opening the fuel filler door

4328-1. Specifications
■Oil capacity (Drain and refill ref-
erence
*)
*: The engine oil capacity is a reference
Engine
Model3.5 L 6-cylinder (2GR-FKS)
Type6-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70  3.27 in. (94.0  83.0 mm)
Displacement210.9 cu. in. (3456 cm3)
Valve clearance (engine cold)Automatic adjustment
Drive belt tensionAutomatic adjustment
Fuel
Fuel typeUnleaded gasoline only
Octane Rating87 (Research Octane Number 91) or higher
Fuel tank capacity
(Reference)19.2 gal. (72.5 L, 15.9 Imp. gal.)
Lubrication system
With filter
Vehicles with towing pack-
age
5.8 qt. (5.5 L, 4.8 Imp. qt.)
Vehicles without towing
package
5.7 qt. (5.4 L, 4.8 Imp. qt.)
Without fil-
ter5.6 qt. (5.3 L, 4.7 Imp. qt.)

4358-1. Specifications
8
Vehicle specifications
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the fac-
tory. Use Lexus approved “Toyota Genuine Di fferential Gear Oil” or an equivalent
of matching quality to satisfy the above specification. Please contact your Lexus
dealer for further details.
Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the fac-
tory. Use Lexus approved “Toyota Genuine Di fferential Gear Oil” or an equivalent
of matching quality to satisfy the above specification. Please contact your Lexus
dealer for further details.
Automatic transmission
Fluid capacity*7.2 qt. (6.8 L, 6.0 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than the abov e type may cause abnormal noise or vibra-
tion, or damage the transm ission of your vehicle.
Transfer (AWD models)
Oil capacity0.8 qt. (0.8 L, 0.7 Imp. qt.)
Oil type and viscosity
Toyota Genuine Differential gear oil LT 75W-85 GL-5,
Toyota Genuine Differential gear oil LX 75W-85 GL-5
or equivalent
Rear differential (AWD models)
Oil capacity0.5 qt. (0.5 L, 0.4 Imp. qt.)
Oil type and viscosity
Toyota Genuine Differential gear oil LT 75W-85 GL-5,
Toyota Genuine Differential gear oil LX 75W-85 GL-5
or equivalent

483Alphabetical Index
DifferentialRear differential oil .................................... 435
Dimension ...................................................... 430
Dinghy towing.................................................169
Display Center Display............................................280
Dynamic radar cruise control with full-speed range .......................................222
Head-up display ........................................... 86
Intuitive parking assist.............................. 238
LTA (Lane Tracing Assist)...................... 216
Multi-information display .......................... 79
RCTA .............................................................. 245
Warning message..................................... 402
Distance until next engine oil change .... 78
Do-it-yourself maintenance .................... 343
Door courtesy lights ...................................300 Wattage.......................................................... 437
Door lock Power back door.......................................... 101
Side doors ........................................................ 97
Smart access system with push-button start ................................................................... 113
Wireless remote control........................... 95
Door pockets ................................................ 307
Doors Automatic door lock ing and unlocking
system ........................................................... 100
Door glasses ................................................. 140
Door lock warning buzzer ...................... 98
Open door warning buzzer ................. 100
Outside rear view mirrors ...................... 137
Rear door child-protectors ................... 100
Side doors ........................................................ 97
Drive distance .................................................. 80
Driver’s seat position memory Driving position memory......................... 129
Memory recall function ............................. 131
Power easy access system ..................... 129
Drive-start control ......................................... 151
Driving Break-in tips .................................................... 151 Correct driving posture ............................ 25
Driving mode select switch .................. 262
Procedures .................................................... 150
Winter drive tips ........................................... 271
Driving assist system information ............ 83
Driving information display ........................ 80
Driving position memory............................129 Memory recall function.............................. 131
Power easy access system .....................129
Driving range ................................................... 80
Dynamic radar cruise control with full-speed range ........................................ 222 Warning message .....................................230
Dynamic Torque Control AWD system .......................................................................... 266
E
Eco Driving Indicator............................. 81, 90
Eco Driving Indicator Light ..........................81
EDR (Event data recorder) ........................... 8
Elapsed time ..................................................... 80
Electric Power Steering (EPS) .............. 266 Warning light .............................................. 395
Electronic key .................................................. 94 Battery-saving function.............................. 114
If the electronic key does not operate properly .........................................................421
Replacing the battery .............................. 369
Electronic sunshade Jam protection function ........................... 146
Operation ....................................................... 145
Emergency flashers .................................... 384
Emergency, in case of If a warning buzzer sounds...................393
If a warning light turns on.......................393
If a warning message is displayed.....402
If the battery is discharged .................... 423
If the electronic key does not operate properly .........................................................421
If the engine will not start......................... 418
If the fuel filler do or cannot be opened
..........................................................................420