2021 LEXUS RC350 battery

382What 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.316)
 If you lose your electronic keys, the
risk of vehicle theft increases signifi-
cantly. Contact your Lexus dealer
immediately. ( P.316)
 Is the electronic key battery weak or
depleted? ( P.277)
 Is the engine switch in IGNITION
ON mode?
When locking the doors, turn the engine
switch off. ( P.129)
 Is the electronic key left inside the
vehicle?
When locking the doors, 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.96)
 The function to prevent the elec-
tronic key from being left inside the
trunk will operate and you can open
the trunk as usual. Take the key out
from the trunk. ( P.93)
 Did you press the engine switch
while firmly depressing the brake
pedal? ( P.127)
 Is the shift lever in P? ( P.127)
 Is the electronic key anywhere
detectable inside the vehicle?
( P.95)
 Is the steering wheel unlocked?
( P.127)
 Is the electronic key battery weak or
depleted?
In this case, the engine can be started in a
temporary way. ( P.318)
 Is the battery discharged? ( P.319)
 Is the engine switch in IGNITION
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 trunk lid is closed with the
electronic key left inside
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

385Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ............................... 275
Automatic air conditioning system .....215
Micro dust and pollen filter..................... 219
ABS (Anti-lock Brake System)................201 Warning light ............................................... 297
Active Sound Control (ASC) ................... 141
Adaptive Variable Suspension System 201
Air conditioning filter ................................. 275
Air conditioning system Air conditioning filter ............................... 275
Automatic air conditioning system .....215
Micro dust and pollen filter..................... 219
Airbags Airbag operating conditions................... 30
Airbag precautions for your child .........32
Correct driving posture .............................23
Curtain shield airbag operating condi-tions .................................................................. 30
Curtain shield airbag precautions ........32
Front passenger occupant classification system ............................................................. 36
General airbag precautions ....................32
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ......... 30
Side airbag precautions .............................32
Side and curtain shield airbags operating conditions...................................................... 30
Side and curtain shield airbags precau- tions ...................................................................32
SRS airbags ..................................................... 28
SRS warning light ...................................... 296
Alarm ....................................................................57 Warning buzzer ......................................... 295
Anchor brackets .......................................41, 49
Antennas (smart access system with push-button start)........................................ 95
Anti-lock Brake System (ABS)................201 Warning light ............................................... 297 Approach warning......................................... 181
ASC (Active Sound Control) ................... 141
Assist grips ..................................................... 230
Audio system-linked display .......................76
Automatic air conditioning system ........215
Automatic headlight leveling system ....143
Automatic High Beam ................................144
Automatic light control system................ 142
Automatic transmission ............................... 131
M mode ............................................................134
Paddle shift switches ....................... 133, 134
Snow mode.................................................... 133
Average fuel economy..................................73
Average vehicle speed .................................73
B
Back-up light Replacing light bulbs ................................282
Wattage ......................................................... 338
Battery Battery checking ........................................263
If the battery is discharged ..................... 319
Preparing and checking before winter......................................................................... 205
Warning light ...............................................296
Blind Spot Monitor (BSM).......................... 191
Boost gauge.......................................................74
Brake Brake hold ...................................................... 139
Fluid...................................................................334
Parking brake ................................................137
Warning light ...............................................295
Brake assist ......................................................201
Break-in tips...................................................... 119
Brightness control Instrument panel light control................... 71
BSM (Blind Spot Monitor).......................... 191
C
Card key ............................................................ 84

386Alphabetical Index
CareExterior ........................................................... 242
Interior ............................................................. 245
Seat belts........................................................ 245
Wheels and wheel ornaments............ 242
Cargo capacity...............................................125
Cargo hooks ................................................. 229
Center Display ............................................... 212
Chains .............................................................. 206
Child restraint system Child seats definition................................... 40
Child seats installation........................ 44, 47
Front passenger occupant classification system ............................................................. 36
Installing a CRS to the front passenger seat ....................................................................42
Installing CRS with LATCH anchors . 48
Installing CRS with top tether strap.....50
Riding with children ..................................... 40
Types of child restraint system installation method ............................................................. 41
Using an anchor bracket .......................... 49
Child safety Airbag precautions.......................................32
Battery precautions ........................ 264, 321
Child restraint system.......................... 40, 41
Heated steering wheel or seat heater precautions................................................ 223
How your child should wear the seat belt ............................................................................ 25
Installing child restraints ............................ 40
Moon roof precautions ............................. 116
Power window lock switch...................... 113
Seat belt extender precautions ............. 25
Seat belt precautions .................................. 40
Trunk precautions .......................................... 91
Cleaning Exterior ........................................................... 242
Interior ............................................................. 245
Radar sensor................................................. 158
Seat belts........................................................ 245
Wheels and wheel ornaments............ 242 Clock ........................................................66, 230
Clock settings ............................................... 230
Coat hooks..................................................... 230
Compass ......................................................... 237
Condenser ..................................................... 262
Console box .................................................. 228
Consumption screen .....................................79
Cooling system............................................. 260
Engine overheating................................... 322
Cornering lights .............................................143 Replacing light bulbs ................................282
Cruise control Dynamic radar cruise control with full-speed range ........................................176
Cup holders ................................................... 228
Current fuel consumption ...........................73
Curtain shield airbags .................................. 28
Customizable features ................................351
D
Daytime running light system ................... 142
Daytime running lights Replacing light bulbs ................................282
Defogger Outside rear view mirrors.......................219
Rear window ..................................................219
Windshield ......................................................219
Differential Front differential oil............. .......................333
Rear differential oil......... ..................... .......333
Dimension ...................................................... 328
Dinghy towing.................................................126
Display Center Display .............................................. 212
Drive information .......................................... 73
LDA (Lane Departure Alert with steering control) ........................................................... 171
Multi-information display ............................ 71
Warning messages.................................. 305
Distance until next engine oil change .... 70
Do-it-yourself maintenance .................... 249
Door courtesy lights ................................... 225

387Alphabetical Index
Door lockDoors..................................................................88
Smart access system with push-button start ................................................................... 95
Wireless remote control........................... 86
Doors Automatic door lock ing and unlocking
system ............................................................. 90
Door glasses ....................................................112
Door lock..........................................................88
Open door warning buzzer .........89, 90, 299
Open door warning light ...................... 299
Outside rear view mirrors ....................... 110
Drive distance ...................................................73
Drive info 1/Drive info 2/Drive info 3.....73
Drive information ............................................73
Driver’s seat position memory Driving position memory.........................102
Memory recall function ........................... 104
Power easy access system .....................102
Drive-start control ......................................... 119
Driving Break-in tips .................................................... 119
Correct driving posture .............................23
Driving mode select switch ....................199
Procedures ...................................................... 118
Winter drive tips.........................................205
Driving assist system information display ..............................................................................76
Driving information display .........................73
Driving position memory............................102 Memory recall function ........................... 104
Power easy access system .....................102
Driving range ....................................................73
DRS (Dynamic Rear Steering) ................201
Dynamic radar cruise control Warning message.....................................303
Dynamic radar cruise control with full-speed range .......................................... 176Warning message...................................... 183
Dynamic Rear Steering (DRS) ................201E
Eco Driving Indicator.....................................74
Eco Driving Indicator Light .........................74
EDR (Event data recorder) ............................6
Elapsed time ......................................................73
Electric Power Steering (EPS) ................201 Warning light ............................................... 297
Electronic key .................................................. 84 Battery-saving function..............................96
If the electronic key does not operate properly .........................................................317
Replacing the battery ............................... 277
Emergency flashers .................................... 286
Emergency, in case of If a warning buzzer sounds...................295
If a warning light turns on.......................295
If a warning message is displayed .... 303
If the battery is discharged ..................... 319
If the electronic key does not operate properly .........................................................317
If the engine will not start..........................314
If the fuel filler do or cannot be opened
........................................................................... 316
If the vehicle is trapped in rising water .......................................................................... 287
If you have a flat tire ..................................307
If you lose your keys .................................. 316
If you think something is wrong..........293
If your vehicle becomes stuck .............326
If your vehicle has to be stopped in an emergency ................................................ 286
If your vehicle needs to be towed .... 289
If your vehicle overheats ........................ 322
Engine ACCESSORY mode................................129
Compartment.............................................. 257
Engine switch ................................................. 127
Fuel pump shut off system..................... 294
Hood ................................................................255
How to start the engine ............................ 127
Identification number ...............................329

389Alphabetical Index
Gauges ............................................................... 66
Gear Position....................................................75
G-force................................................................74
Glove box ........................................................227
Glove box light ............................................. 228
H
Head restraints .............................................. 105
Headlight aim ................................................280
HeadlightsAutomatic High Beam system.............. 144
Light switch ..................................................... 142
Replacing light bulbs................................ 282
Wattage..........................................................338
Heated steering wheel .............................. 223
Heaters Automatic air conditioning system .....215
Heated steering wheel............................ 223
Outside rear view mirrors ...................... 219
Seat heaters .................................................. 223
High mounted stoplight Replacing light bulbs................................ 282
Hill-start assist control .................................201
Hood Open ............................................................... 255
Hooks Cargo hooks................................................ 229
Coat hooks ................................................... 230
Retaining hooks (floor mat)......................22
Horn ................................................................... 109
I
I/M test ............................................................ 252
Identification Engine ............................................................. 329
Vehicle ............................................................ 328
Ignition switch (engine switch)................. 127 Auto power off function .......................... 130
Changing the engine switch modes.. 129
If your vehicle has to be stopped in an
emergency ................................................286 Illuminated entry system ........................... 226
Indicators ........................................................... 64
Initialization
Items to initialize .......................................... 361
Maintenance.................................... 248, 260
Power windows ............................................. 112
Tire pressure warning system .............269
Inside rear view mirror ............................... 109
Instrument panel light co ntrol ..................... 71
Intercooler...................................................... 262
Intercooler coolant Capacity ......................................................... 332
Checking ...................................................... 260
Interior lights.................................................. 225 Front interior light ...................................... 225
Rear interior light........................................ 225
Intuitive parking assist Warning message ...................................... 187
J
JackPositioning a floor jack ............................255
Vehicle-equipped jack ...........................307
Jack handle .................................................... 307
Jam protection function Moon roof ........................................................ 115
Power windows ............................................. 112
K
Keyless entrySmart access system with push-button start ...................................................................95
Wireless remote control ...........................86
Keys Battery-saving function..............................96
Electronic key .................................................84
Engine switch ................................................. 127
If the electronic key does not operate properly .........................................................317
If you lose your keys .................................. 316
Key number plate .........................................84

390Alphabetical Index
Keyless entry ..........................................88, 95
Mechanical key.............................................. 84
Replacing the battery................................277
Warning buzzer ............................................ 95
Wireless remote control........................... 86
Knee airbags .................................................... 28
L
Lane Departure Alert wi th steering control
(LDA) Operation........................................................169
Warning messages .................................... 174
Language (multi-information display) ....76
LDA (Lane Departure Alert with steering control)Operation........................................................169
Warning messages .................................... 174
LDA (Lane Departure Alert with steering control) switch .............................................. 171
LDH (Lexus Dynamic Handling system) .......................................................................... 202
Lever Auxiliary catch lever ................................. 255
Hood lock release lever......................... 255
Shift lever........................................................... 131
Turn signal lever ...........................................136
Wiper lever..................................................... 147
Lexus Dynamic Handling system (LDH) .......................................................................... 202
Lexus Enform Safety Connect.................. 52
Lexus Safety System + Automatic High Beam .............................. 144
LDA (Lane Departure Alert with steering control) ..........................................................169
PCS (Pre-Collision System).................. 162
License plate lights Light switch ..................................................... 142
Replacing light bulbs................................ 282
Light Wattage..........................................................338
Light bulbs Replacing .........................................................281 Lights
Automatic High Beam system ..............144
Front interior lights .................................... 225
Headlight switch...........................................142
Interior lights ................................................. 225
Interior lights list .......................................... 225
Personal lights ............................................. 226
Rear interior lights ..................................... 225
Replacing light bulbs ................................282
Trunk light ......................................................... 93
Turn signal lever .......................................... 136
Vanity lights ....................................................231
Wattage ......................................................... 338
Lock steering column .................................. 127
M
Maintenance Do-it-yourself maintenance .................253
General maintenance ............................. 249
Maintenance date ......................................328
Maintenance requirements ..................248
Malfunction indicator la mp ..................... 296
Master warning light ..................................300
Menu icons.........................................................72
Meter Changing the main meter location......69
Clock...................................................................66
Indicators........................................................... 64
Instrument panel light control................... 71
Meters................................................................. 66
Multi-information display ............................ 71
Settings............................................................... 76
Units..................................................................... 75
Warning lights .............................................295
Warning messages.................................. 303
Micro dust and pollen filter .......................219
Mirrors Inside rear view mirror ............................. 109
Outside rear view mirror defoggers .219
Outside rear view mirrors........................ 110
Vanity mirrors ................................................231

392Alphabetical Index
Power easy access system ........................102
Power outlet .................................................. 230
Power steering (Electric power steering
system)............................................................201 Warning light ............................................... 297
Power windows Door lock linked window operation... 113
Jam protection function..............................112
Operation..........................................................112
Window lock switch ................................... 113
Pre-Collision System (PCS) Function ............................................................ 162
PCS OFF switch ..........................................164
Warning light ...............................................298
Warning message.....................................303
R
Radar cruise control (dynamic radar cruise control with full-speed range)............... 176
Radiator ........................................................... 262
RCTA Function ............................................................. 191
Rear Cross Traffic Alert (RCTA) ............ 191
Rear seats .......................................................... 101 Head restraints ............................................ 105
Seat heaters .................................................. 223
Seat ventilators............................................ 223
Rear side marker lights Light switch ..................................................... 142
Rear turn signal lights Turn signal lever ...........................................136
Wattage..........................................................338
Rear view mirror Inside rear view mirror............................. 109
Outside rear view mirrors ....................... 110
Rear window defogger ...............................219
Refueling Capacity .........................................................330
Fuel types.......................................................330
If the fuel filler door cannot be opened...........................................................................316
Opening the fuel tank cap ..................... 155 Remote Touch ................................................210
Replacing
Electronic key battery .............................. 277
Fuses................................................................. 278
Light bulbs ...................................................... 281
Tires ..................................................................307
Resetting the message indicating mainte- nance is required ...................................... 248
Rev indicator .................................................... 69
Rev peak............................................................. 69
S
Seat belt reminder light............................. 299
Seat belts............................................................ 24 Automatic Locking Retractor................. 26
Child restraint system installation ..40, 41
Cleaning and maintaining the seat belt..........................................................................245
Emergency Locking Retractor .............. 26
How to wear your seat belt ..................... 25
How your child should wear the seat belt ............................................................................. 25
Pregnant women, proper seat belt use ............................................................................. 24
Reminder light and buzzer ...................299
Seat belt extender......................................... 25
Seat belt pretensioners .............................. 27
SRS warning light.......................................296
Seat heaters ................................................... 223
Seat position memory..................................102
Seat ventilators ............................................. 223
Seating capacity.............................................125
Seats Adjustment ....................................................... 99
Cleaning .........................................................245
Driving position memory ........................ 102
Head restraints............................................. 105
Power easy access system .................... 102
Properly sitting in the seat ........................ 23
Seat heaters .................................................. 223
Seat position memory .............................. 102
Seat ventilators ............................................ 223

396Alphabetical Index
Load limits .......................................................125
Weight ............................................................ 328
Wheels ..............................................................274 Size.................................................................... 334
Window lock switch ...................................... 113
Windows Power windows..............................................112
Rear window defogger ............................ 219
Washer ............................................................. 147
Windshield wiper de-icer ..........................219
Windshield wipers ........................................ 147
Winter driving tips....................................... 205
Wireless remote control Battery-Saving Function ........................... 96
Locking/Unlocking ..................................... 86
Replacing the battery................................277
For information regarding the equipment listed below, refer to
the “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S
MANUAL”.
· Navigation system
· Audio/visual system
· Lexus parking assist monitor