2022 LEXUS RC350 water pump

4TABLE OF CONTENTS
RC350/RC300 Owner's Manual
Air conditioning filter..................273
Electronic key battery ................ 275
Checking and replacing fuses ........................................................... 276
Headlight aim................................. 278
Light bulbs ....................................... 279
7-1. Essential information Emergency flashers..................... 284
If your vehicle has to be stopped in an emergency ............................. 284
If the vehicle is submerged or water on the road is rising .................. 285
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................... 287
If you think something is wrong ............................................................ 291
Fuel pump shut off system ........ 292
If a warning light turns on or a warn- ing buzzer sounds ..................... 293
If a warning message is displayed ............................................................ 301
If you have a flat tire..................... 305
If the engine wi ll not start ........... 312
If you lose your keys ..................... 314
If the fuel filler door cannot be opened............................................ 314
If the electronic key does not oper- ate properly .................................. 315
If the vehicle battery is discharged ............................................................ 317
If your vehicle overheats ........... 320
If the vehicle becomes stuck ... 3248-1. Specifications
Maintenance data (fuel, oil level, etc.) ................................................. 326
Fuel information............................ 337
Tire information ............................ 339
8-2. Customization Customizable features .............. 349
8-3. Items to initialize Items to initialize ........................... 358
9-1. For owners Reporting safety defects for U.S. owners ........................................... 360
Reporting safety defects for Cana- dian owners ................................. 360
Seat belt instructions for Canadian owners (in French) .................... 361
SRS airbag instructions for Cana- dian owners (in French) ......... 362
Headlight aim instructions for Canadian owners (in French)
.......................................................... 368
What to do if... (Troubleshooting) .......................................................... 370
Certifications ................................. 373
Alphabetical Index ...................... 384
7When trouble arises
8Vehicle specifications
9For owners
Index

2596-3. Do-it-yourself maintenance
RC350/RC300 Owner's Manual
6
Maintenance and care
on the reservoir when the engine is
cold.
■Engine coolant reservoir
RC350/RC300 AWD
RC300Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the “LOW” line,
add coolant up to the “FULL” line.
(  P.320)
■Intercooler coolant reservoir
(RC300)
The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the engine is cold. Reservoir cap
“F” line
“L” line
If the level is on or
below the “L” line, add
coolant up to the “F” line. ( P.320)
■Coolant selection
Only use “Toyota Super Long Life Coolant”
or a similar high qua lity ethylene glycol
based non-silicate, non-amine, non-nitrite,
and non-borate coolant with long-life
hybrid organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mix-
ture of 50% coolant and 50% deionized
water. (Minimum temperature: -31°F
[-35°C])
Canada:
“Toyota Super Long Life Coolant” is a mix-
ture of 55% coolant and 45% deionized
water. (Minimum temperature: -44°F
[-42°C])
For more details about coolant, contact
your Lexus dealer.
■If the coolant level drops within a short
time of replenishing
Visually check the radiator, hoses, engine
and intercooler coolant reservoir caps,
drain cock and water pump.
If you cannot find a leak, have your Lexus
dealer test the cap and check for leaks in
the cooling system.
A
B
C
A
B
C

2636-3. Do-it-yourself maintenance
RC350/RC300 Owner's Manual
6
Maintenance and care
RC300Check if the treadwear indicators are
showing on the tires. Also check the
tires for uneven wear, such as excessive
wear on one side of the tread.
Check the spare tire condition and
pressure if not rotated.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is
shown by a “TWI” or “ ” mark, etc.,
molded into the side wall of each tire.
Replace the tires if the treadwear indica-
tors are showing on a tire.
WARNING
■When adding washer fluid
Do not add washer fluid when the engine
is hot or running as washer fluid contains
alcohol and may catch fire if spilled on
the engine, etc.
NOTICE
■Do not use any fluid other than
washer fluid
Do not use soapy water or engine anti-
freeze instead of washer fluid.
Doing so may cause streaking on the
vehicle’s painted surfaces, as well as
damaging the pump leading to problems
of the washer fluid not spraying.
■Diluting washer fluid
Dilute washer fluid with water as neces-
sary.
Refer to the freezing temperatures listed
on the label of the washer fluid bottle.
Tires
Replace or rotate tires in accor-
dance with maintenance schedules
and treadwear.
Checking tires
A
B
C

283
RC350/RC300 Owner's Manual
7
7
When trouble arises
When trouble arises
.7-1. Essential informationEmergency flashers.................. 284
If your vehicle has to be stopped in an emergency .......................... 284
If the vehicle is submerged or water on the road is rising .. 285
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................ 287
If you think something is wrong ......................................................... 291
Fuel pump shut off system ..... 292
If a warning light turns on or a warning buzzer sounds ....... 293
If a warning message is displayed ......................................................... 301
If you have a flat tire.................. 305
If the engine wi ll not start ........312
If you lose your keys .................. 314
If the fuel filler door cannot be opened......................................... 314
If the electronic key does not operate properly ..................... 315
If the vehicle battery is discharged ......................................................... 317
If your vehicle overheats ........ 320
If the vehicle becomes stuck ........................................................ 324

386Alphabetical Index
RC350/RC300 Owner's Manual
Door lockDoors .................................................................. 86
Smart access system with push-button start ................................................................... 93
Wireless remote control........................... 84
Doors Automatic door lock ing and unlocking
system .............................................................88
Door glasses ................................................... 110
Door lock.......................................................... 86
Open door warning buzzer87, 88, 297
Open door warning light ...................... 297
Outside rear view mirrors ..................... 108
Drive distance ...................................................73
Drive info 1/Drive info 2/Drive info 3.....73
Drive information ............................................73
Driver’s seat position memory Driving position memory........................ 100
Memory recall function ............................102
Power easy access system .................... 100
Drive-start control ......................................... 117
Driving Break-in tips .....................................................117
Correct driving posture .............................23
Driving mode select switch ....................196
Procedures ...................................................... 116
Winter drive tips......................................... 203
Driving assist system information display ..............................................................................76
Driving information display .........................73
Driving position memory........................... 100 Memory recall function ............................102
Power easy access system .................... 100
Driving range ....................................................73
DRS (Dynamic Rear Steering) ................199
Dynamic radar cruise control Warning message...................................... 301
Dynamic radar cruise control with full-speed range .......................................... 174 Warning message........................................ 181
Dynamic Rear Steering (DRS) ................199E
Eco Driving Indicator.....................................74
Eco Driving Indicator Light .........................74
EDR (Event data recorder) ............................7
Elapsed time ......................................................73
Electric Power Steering (EPS) ................199 Warning light ...............................................295
Electronic key .................................................. 82 Battery-saving function.............................. 94
If the electronic key does not operate properly ........................................................ 315
Replacing the battery ............................... 275
Emergency flashers .................................... 284
Emergency, in case of If a warning buzzer sounds...................293
If a warning light turns on.......................293
If a warning message is displayed...... 301
If the battery is discharged ......................317
If the electronic key does not operate properly ........................................................ 315
If the engine will not start..........................312
If the fuel filler do or cannot be opened
............................................................................314
If the vehicle is submerged or water on the road is rising ..................................... 285
If you have a flat tire ................................. 305
If you lose your keys ...................................314
If you think something is wrong............291
If your vehicle becomes stuck ............. 324
If your vehicle has to be stopped in an emergency .................................................284
If your vehicle needs to be towed ..... 287
If your vehicle overheats ........................320
Engine ACCESSORY mode................................ 127
Compartment..............................................255
Engine switch ................................................ 125
Fuel pump shut off system..................... 292
Hood ................................................................253
How to start the engine ........................... 125
Identification number ............................... 327