2016 LEXUS RC300 engine overheat

4296-1. Using the air conditioning system
6
Interior features
RC350_RC300_RC200t_RC F_U (OM24671U)
Turn the heated steering wheel on/off
The indicator light comes on when the
heated steering wheel is operating.
Heated steering wheel/seat heaters/seat ventila-
tors


: If equipped
Heated steering wheel and seat heaters heat the side grips of the steering
wheel and seats, respectively. Seat ventilators maintain good airflow by blow-
ing air from the seats.
WA R N I N G
●Care should be taken to prevent injury if anyone in the following categories comes in
contact with the steering wheel or seats when the heater is on:
• Babies, small children, the elderly, the sick and the physically challenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold
remedies, etc.)
●Observe the following precautions to prevent the minor burns or overheating
• Do not cover the seat with a blanket or cushion when using the seat heater.
• Do not use seat heater more than necessary.
NOTICE
●Do not put heavy objects that have an uneven surface on the seat and do not stick
sharp objects (needles, nails, etc.) into the seat.
●To prevent battery discharge, do not use the functions when the engine is off.
Heated steering wheel

531
When trouble arises8
RC350_RC300_RC200t_RC F_U (OM24671U)
8-1. Essential informationEmergency flashers...................532
If your vehicle has to be stopped in an
emergency .................................533 8-2. Steps to take in an emergency
If your vehicle needs to be towed ...........................................534
If you think something is wrong ............................................ 541
Fuel pump shut off system ...... 542
If a warning light turns on or a warning buzzer
sounds.......................................... 543
If a warning message is displayed..................................... 549
If you have a flat tire (vehicles with a spare
tire) ................................................ 570
If you have a flat tire (vehicles with an
emergency tire puncture
repair kit) ....................................584
If the engine will not start ........ 597
If the shift lever cannot be shifted from P............................ 599
If the electronic key does not operate properly ............ 600
If the vehicle battery is discharged .................................604
If your vehicle overheats ........ 608
If the vehicle becomes stuck ...............................................614

5588-2. Steps to take in an emergency
RC350_RC300_RC200t_RC F_U (OM24671U)
Indicates that the windows are not fully closed (with the
engine switch off, and the driver’s door open)A buzzer also sounds.
 Close all the windows.
(If equipped)
Indicates that the windows and the moon roof are not
fully closed (with the engine switch off, and the driver’s
door open)
A buzzer also sounds.
 Close all the windows and the moon roof.
RC F only
(If equipped)
Indicates a malfunction in the TVD (Torque Vectoring
Differential) system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
RC F only
(If equipped)
Indicates that the TVD (Torque Vectoring Differential)
system has overheated
This message may be disp layed when driving under
extremely high load conditions such as the following:
• Continuously driving at high speeds or through sharp turns
• If either right or left rear tire loses traction and spins continuously
A buzzer also sounds.
 Drive the vehicle for a while, while avoiding
extremely high load conditions.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)
(Flashes)

6088-2. Steps to take in an emergency
RC350_RC300_RC200t_RC F_U (OM24671U)
●The engine coolant temperature gauge (P. 92, 98) is in the red zone or a
loss of engine power is experienced. (F or example, the vehicle speed does not
increase.)
●“Engine Coolant High Temperature” is shown on the multi-information dis-
play.
●Steam comes out from under the hood.
Stop the vehicle in a safe place and tu rn off the air conditioning system, and
then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
1
2

683Alphabetical index
RC350_RC300_RC200t_RC F_U (OM24671U)
Child safety ................................................ 56Airbag precautions .............................. 42
Battery precautions ............. 499, 607
Child restraint system ......................... 57
How your child should wear the seat belt .......................................... 36
Installing child restraints..................... 57
Moon roof precautions...................... 181
Power window lock switch .............174
Power window precautions ........... 177
Removed electronic key battery precautions................ 518
Seat belt extender precautions ........................................... 39
Seat belt precautions ..........................38
Seat heater precautions..................429
Trunk precautions............................... 146 Cleaning ....................................... 464, 469
Aluminum wheels .............................. 465
Exterior ................................................... 464
Interior ..................................................... 469
Seat belts................................................ 470
Clock......................................................... 440
Coat hooks ..............................................443
Compass ................................................... 451
Condenser .............................................. 495
Console box ........................................... 436
Cooling system ..................................... 493 Engine overheating ......................... 608
Cruise control Cruise control ..................................... 235
Dynamic radar cruise control ..... 239
Cup holders.............................................437
Current fuel consumption .........108, 110
Curtain shield airbags ........................... 40
Customizable features ........................ 651

685Alphabetical index
RC350_RC300_RC200t_RC F_U (OM24671U)
E-mail...........................................................391
Eco drive mode ..................................... 283
Eco Driving Indicator............................. 90
Eco Driving Indicator Light ....... 110, 122
Eco driving meter .................................... 98
EDR (Event data recorder) ...................10
Elapsed time ................................... 108, 110
Electric Power Steering (EPS) .......288Warning light .......................................544
Electronic key ..........................................132 Battery-saving function .................... 150
If the electronic key does not operate properly............................ 600
Replacing the battery ........................ 517 Emergency flashers ............................ 532
Emergency tire puncture
repair kit................................................ 584
Emergency, in case of If a warning buzzer sounds .......... 543
If a warning light turns on .............. 543
If a warning message is displayed ........................................ 549
If the electronic key does not operate properly ....... 600
If the engine will not start ............... 597
If the shift lever cannot be shifted from P ............599
If the vehicle battery is discharged.........................................604
If you have a flat tire ............. 570, 584
If you think something is wrong ................................................541
If your vehicle becomes stuck.......614
If your vehicle has to be stopped in an emergency.......... 533
If your vehicle needs to be towed ....................................... 534
If your vehicle overheats ............... 608
E

686Alphabetical index
RC350_RC300_RC200t_RC F_U (OM24671U)
Engine .........................................................621ACCESSORY mode..................... 200
Compartment ..................................... 485
Engine switch ........................................ 199
Hood ......................................................... 481
How to start the engine ................... 199
Identification number ...................... 620
If the engine will not start................597
Ignition switch (engine switch)..... 199
Overheating ........................................ 608
Engine coolant....................................... 493 Capacity .................................................626
Checking................................................493
Preparing and checking before winter ................................... 320
Engine coolant temperature gauge ................................................92, 98
Engine immobilizer system ..................76
Engine oil .................................................488 Capacity ................................................. 622
Checking............................................... 488
Preparing and checking before winter ................................... 320
Engine oil maintenance data .............491
Engine oil temperature gauge ........... 98
Engine switch ...........................................199
Enhanced VSC ..................................... 287
EPS (Electric Power Steering) .......288 Warning light .......................................544
Event data recorder (EDR) ...................10
Expert mode .............................................291 First-aid kit storage belt..................... 438
Flat tire
Vehicles with a spare tire .............. 570
Vehicles with emergency tire puncture repair kit .........................584
Floor mats................................................... 30
Fluid Automatic transmission .................. 627
Brake........................................................ 629
Washer .................................................. 500
Fog lights...................................................222 Replacing light bulbs ....................... 529
Switch .......................................................222
Footwell light ...........................................432 Wattage .................................................635
Front fog lights........................................222 Replacing light bulbs ....................... 529
Switch .......................................................222
Front passenger occupant classification system ........................... 50
Front seats ................................................. 155 Adjustment............................................. 155
Cleaning................................................. 469
Correct driving posture .....................32
Driving position memory................ 160
Head restraints .....................................164
Jam protection function....................156
Seat heaters ..........................................430
Seat position memory ...................... 160
Seat ventilators...................................... 431F

691Alphabetical index
RC350_RC300_RC200t_RC F_U (OM24671U)
Odometer ..........................................92, 98
OilEngine oil................................................ 622
Front differential oil............................ 627
Rear differential oil ............................ 628
Opener Hood ......................................................... 481
Trunk ......................................................... 143
Outer foot lights.................................... 432
Outside rear view mirrors ................... 171 Adjusting and folding.......................... 171
Blind spot monitor ............................ 302
Linked mirror function when reversing .................................. 172
Mirror position memory .................. 160
Outside rear view mirror defoggers ............................ 424
Outside temperature.....................92, 98
Overheating ...........................................608 Paddle shift switches................207, 208
Parking assist sensors
(intuitive parking assist).................. 259
Parking brake ............................................211
Parking lights ........................................... 214 Light switch............................................. 214
Replacing light bulbs ....................... 529
PCS (Pre-Collision System)............ 295 PCS OFF switch ................................ 296
Warning light ....................................... 544
Personal lights ........................................434
Pop-up display ............................... 110, 122
Power outlet ........................................... 440
Power steering (Electric power steering system) ................................ 288Warning light ....................................... 544
Power windows....................................... 174 Door lock linked window operation ........................... 176
Jam protection function.................... 175
Operation................................................ 174
Window lock switch .......................... 174
Pre-Collision System (PCS)............ 295 PCS OFF switch ................................ 296
Warning light ....................................... 544
OP
*: For vehicles with a navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.