key LEXUS RC350 2018 Repair Manual

5768-2. Customization
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
■Seat heaters* ( P. 345)
*:If equipped
■Illumination ( P. 347)
FunctionDefault settingCustomized setting
Seat heater timer controlOffOnOO
12
FunctionDefault settingCustomized setting
Time elapsed before the interior
lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation after the engine
switch is turned offOnOff—O
Operation when the doors are
unlockedOnOff—O
Operation when you approach
the vehicle with the electronic
key on your person
OnOff—O
Ambient lights and Remote
Touch pad lightOnOff—O
Time elapsed before the outer
foot lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation of the outer foot lights
when you approach the vehicle
with the electronic key on your
person
OnOff—O
Operation of the outer foot lights
when the doors are unlocked
with the power door lock switch
OnOff—O
Operation of the outer foot lights
when a door is openedOnOff—O
Fading out of the outer foot lights
when they turn offLongShort—O
12

612
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, ne
w genuine mechanical keys can be made
by your Lexus dealer. ( P. 142)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( P. 144)
●Is the electronic key battery weak or depleted? ( P. 427)
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (P. 208)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
( P. 158)
●The function to prevent the electronic key from being left inside the trunk will
operate and you can open th e trunk as usual. Take the key out from the trunk.
( P. 153)
If you have a problem, check the foll owing before contacting your Lexus
dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The trunk lid is closed with the electronic key left inside

613What to do if... (Troubleshooting)
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
●Did you press the engine switch while firmly depressing the brake pedal?
( P. 207)
●Is the shift lever in P? ( P. 210)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 156)
●Is the steering wheel unlocked? ( P. 210)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. (P. 520)
●Is the battery discharged? ( P. 522)
●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. 219)
●It is locked automatically to prevent theft of the vehicle. ( P. 210)
●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. 182)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. (P. 210)
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

614What to do if... (Troubleshooting)
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
●The seat belt reminder light is flashing
Are the driver and the front passe nger wearing the seat belts? (P. 455)
●The parking brake indicator is on
Is the parking brake released? ( P. 222)
Depending on the situation, other types of warning buzzer may also sound.
( P. 453, 460)

●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 80)
Do one of the following to de activate or stop the alarms:
• Unlock the doors.
• Open the trunk using the entry function or wireless remote control.
• Turn the engine switch to ACCESSORY or IGNITION ON mode, or start the
engine.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. ( P. 460)
●When a warning light turns on or a warning message is displayed, refer to
P. 453, 460.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

618Alphabetical index
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Card key ................................................... 140
Care ................................................. 376, 381
Aluminum wheels .............................. 377
Exterior....................................................376
Interior ...................................................... 381
Seat belts ............................................... 382
Cargo capacity...................................... 204
Cargo hooks .......................................... 353
Chains ............................................ 322, 322
Child restraint system............................ 58 Child seats definition .......................... 58
Child seats installation ................. 65, 71
Front passenger occupant classification system ...........................51
Installing a CRS to the passenger seat............................ 62
Installing a CRS to the rear seat............................................................ 64
Installing CRS with LATCH anchors ..................... 72
Installing CRS with seat belts ..........65
Installing CRS with top tether strap ......................... 76 Child safety ................................................. 57
Airbag precautions...............................42
Battery precautions ............... 410, 525
Child restraint system......................... 58
How your child should wear the seat belt .......................................... 36
Installing child restraints .................... 58
Moon roof precautions ................... 189
Power window lock switch.............182
Power window precautions .......... 185
Removed electronic key battery precautions .............. 428
Seat belt extender precautions .......................................... 39
Seat belt precautions .......................... 38
Seat heater precautions ................. 344
Trunk precautions ...............................154
C

620Alphabetical index
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Doors...........................................................145
Automatic door locking and unlocking system.................... 148
Door lock .................................................147
Open door warning buzzer.......... 146
Open door warning light...............454
Outside rear view mirrors .............. 178
Side windows ........................................ 182
Drive info 1/Drive info 2/ Drive info 3 ................................. 108, 122
Drive information ........................ 108, 122 Resetting......................................... 106, 119
Drive-Start Control .................... 193, 218
Driver’s seat position memory ..........166
Driving.........................................................192 Break-in tips .......................................... 193
Correct driving posture .................... 32
Driving mode select switch ........... 301
Procedures ............................................ 192
Winter drive tips ................................ 320
DRS (Dynamic Rear Steering) .........312 Warning message ............................ 460
Dynamic radar cruise control ......... 268
Dynamic Rear Steering (DRS) .........312 Warning message ............................ 460 Eco drive mode.......................................301
Eco Driving Indicator ...................116, 132
Eco Driving Indicator Light......... 111, 129
Eco driving meter ....................................96
EDR (Event data recorder)................... 10
Elapsed time...................................108, 122
Electric Power Steering (EPS) ......... 313
Warning light ....................................... 454
Electronic key .......................................... 140 Battery-saving function ................... 158
If the electronic key does not operate properly ............................. 518
Replacing the battery .......................427
Emergency flashers .............................442
Emergency tire puncture repair kit................................................ 502E

621Alphabetical index
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Emergency, in case of
If a warning buzzer sounds...........453
If a warning light turns on...............453
If a warning message is displayed ....................................... 460
If the electronic key does not operate properly ......... 518
If the engine will not start................. 516
If the vehicle battery is discharged ......................................... 522
If you have a flat tire .............489, 502
If you think something is wrong................................................ 451
If your vehicle becomes stuck .....532
If your vehicle has to be stopped in an emergency ..........443
If your vehicle needs to be towed ....................................... 444
If your vehicle overheats ................526
Engine ....................................................... 539 ACCESSORY mode..................... 208
Compartment......................................397
Engine switch .......................................207
Hood ........................................................393
How to start the engine ..................207
Identification number ...................... 538
If the engine will not start................. 516
Ignition switch (engine switch)....207
Overheating .........................................526 Engine coolant ...................................... 404
Capacity................................................. 544
Checking ............................................... 404
Preparing and checking before winter ........................320, 320
Engine coolant temperature gauge ..................................................91, 96
Engine immobilizer system .................. 79
Engine oil ................................................. 400 Capacity.................................................540
Checking .............................................. 400
Preparing and checking before winter ........................320, 320
Engine oil maintenance data ........... 403
Engine oil temperature gauge............96
Engine switch ..........................................207
Enhanced VSC ....................................... 312
EPS (Electric Power Steering) ......... 313 Warning light ....................................... 454
Event data recorder (EDR)................... 10
Expert mode ............................................ 316

624Alphabetical index
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Jack
Positioning a floor jack ....................394
Vehicle-equipped jack ......489, 502
Jack handle ................................. 489, 502
Jam protection function Front seats .............................................. 162
Moon roof .............................................. 187
Power windows ................................... 183 Keyless entry
Smart access system with push-button start........... 145, 151
Wireless remote control......... 145, 151
Keys ............................................................. 140 Battery-saving function ................... 158
Electronic key ........................................140
Engine switch ...................................... 207
If the electronic key does not operate properly ......... 518
Key number plate ................................140
Keyless entry ..........................................140
Mechanical key.......................................141
Replacing the battery .......................427
Warning buzzer...................................146
Wireless remote control..................140
Knee airbags ............................................. 40
JK

628Alphabetical index
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Radar cruise control (dynamic
radar cruise control) ........................ 268
Radiator .................................................... 406
Rear seats ..................................................164 Fold down the seatback .................. 164
Luggage security system ................ 152
Rear turn signal lights ........................... 221 Replacing light bulbs ........................ 432
Turn signal lever ................................... 221
Wattage ................................................. 553
Rear view mirror Inside rear view mirror ......................176
Outside rear view mirrors .............. 178
Rear window defogger ...................... 338
Refueling .................................................... 241 Capacity ................................................ 540
Fuel types .............................................. 540
If the fuel filler door cannot be opened ......................... 243
Opening the fuel tank cap............. 243
Remote Touch
*
Replacing Electronic key battery ...................... 427
Fuses.........................................................429
Light bulbs ............................................. 432
Tires ......................................................... 489
Reporting safety defects for U.S. owners...................................600
Resetting the message indicating maintenance is required ................385
Rev indicator ..................................... 93, 99
Rev peak ...........................................93, 100 Seat belt reminder light ..................... 455
Seat belts .....................................................34
Automatic Locking Retractor ........ 36
Child restraint system installation ............................................. 58
Cleaning and maintaining the seat belt ....................................... 382
Emergency Locking Retractor................................................ 36
How to wear your seat belt............. 34
How your child should wear the seat belt .......................................... 36
Pregnant women, proper seat belt use ..........................................37
Reminder light and buzzer ...........455
Seat belt extender ................................ 36
Seat belt guide ....................................... 35
Seat belt pretensioners...................... 35
SRS warning light .............................. 453
RS

634Alphabetical index
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Units ......................................................111, 129
Vanity lights............................................. 354
Wattage ................................................. 553
Vanity mirrors ........................................ 354
Variable Gear Ratio Steering (VGRS) ...................................................312
Warning message ............................ 460
VDIM (Vehicle Dynamics Integrated Manag ement) ................313
Vehicle data recordings .......................... 9
Vehicle Dynamics Integrated Management (VDIM) .......................313
Vehicle identification number ......... 537
Vehicle Stability Control (VSC) .......................................................312
Ventilators (seat ventilators)............ 346
VGRS (Variable Gear Ratio Steering) .................................................312 Warning message ............................ 460
VSC (Vehicle Stability Control) ..............312 Warning buzzers
Approach warning ........................... 275
Brake system ....................................... 462
Downshifting ..........................................218
Intuitive parking assist......................280
Key reminder .......................................485
LDA (Lane Departure Alert with steering control) ................... 469
Open door ........................................... 454
Open hood........................................... 463
Open moon roof ............................... 473
Open trunk ........................................... 463
Open window ..................................... 473
Pre-collision braking.......................... 251
Seat belt reminder.............................455
Warning lights .......................................... 86 ABS .......................................................... 453
Automatic headlight leveling system .................................................. 454
Brake system ....................................... 453
Charging system ............................... 453
Electric power steering .................. 454
Low fuel level .......................................455
LDA indicator...................................... 454
Malfunction indicator lamp........... 453
Master warning light ........................455
Open door ........................................... 454
Parking brake warning light ......... 454
Pre-collision system ......................... 454
Seat belt reminder light ..................455
Slip indicator ........................................ 454
SRS............................................................ 453
Tire pressure ........................................455
Warning messages.............................. 460
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