Page 630 of 724
6308-2. Steps to take in an emergency
●The engine coolant temperature gauge (→P. 96, 102) is in the red zone or a
loss of engine power is experienced. (For 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
Page 633 of 724
6338-2. Steps to take in an emergency
8
When trouble arises
Add coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
Start the engine and turn the air conditio ning system on to check that the radi-
ator cooling fans operate and to check for coolant leaks from the radiator or
hoses.
The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are operating by checking the fan sound and air flow.
If it is difficult to check these, turn the air conditioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately an d contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
5
Engine (RC350/RC300)Engine (RC200t)
Engine (RC F)Intercooler (RC200t)
6
7
Page 681 of 724
6819-2. Customization
9
Vehicle specifications
■Intuitive parking assist*1 (→ P. 269)
*1:If equipped
*2: When intuitive parking assist is operating.
■Active rear wing* (→ P. 326)
*:RC F
■Automatic air conditioning system ( →P. 434)
■Seat heaters* (→ P. 446)
*:If equipped
FunctionDefault settingCustomized setting
Detection distance of the
front center sensor*1FarNearO—O
Detection distance of the
rear center sensorFarNearO—O
Buzzer volume31 to 5O—O
Display setting*2All sensors dis-
playedDisplay offO—O
123
FunctionDefault settingCustomized setting
Operation of the active rear
wingOffOn—OO
123
FunctionDefault settingCustomized setting
A/C auto switch operationOnOffO—O
Exhaust gas sensor sensitiv-
ityStandard-3 to 3O—O
123
FunctionDefault settingCustomized setting
Seat heater timer controlOffOnO—O
123
Page 702 of 724

702Alphabetical index
Alphabetical index
A/C ............................................................ 434Air conditioning filter....................... 536
Automatic air conditioning system ..................................................434
AAC disc ................................................. 369
ABS (Anti-lock Brake System)....... 298 Warning light ...................................... 565
Active rear wing.................................... 326
Active Sound Control (ASC).......................................... 222, 223
Adaptive Variable Suspension System........................... 299
Air conditioning filter .......................... 536
Air conditioning system ..................... 434 Air conditioning filter....................... 536
Automatic air conditioning system ..................................................434 Airbags ........................................................ 40
Airbag operating conditions ...........47
Airbag precautions for your child ........................................42
Correct driving posture .....................32
Curtain shield airbag operating conditions ........................47
Curtain shield airbag precautions .......................................... 44
Front passenger occupant classification system........................... 51
General airbag precautions ............42
Locations of airbags............................ 40
Modification and disposal of airbags............................................... 46
Side airbag operating conditions ..............................................47
Side airbag precautions .....................42
Side and curtain shield airbags operating conditions ........................47
Side and curtain shield airbags precautions ..........................42
SRS airbags ............................................. 40
SRS warning light ..............................565
A
Page 710 of 724

710Alphabetical index
Hands-free system (for cellular phone) ........................... 397
HD Radio
® system .............................. 363
Head restraints ........................................ 173
Headlight cleaner................................. 233
Headlights ............................................... 224 Automatic High Beam system .................................................. 227
Light switch ........................................... 224
Replacing light bulbs ....................... 550
Heaters Air conditioning system ..................434
Heated steering wheel ....................445
Outside rear view mirrors .............439
Seat heaters ..........................................446
Hill-start assist control ........................ 298
Hood .......................................................... 497 Open ........................................................ 497
Hooks Cargo hooks ........................................454
Coat hooks .......................................... 459
Retaining hooks (floor mat) .............30
Horn ............................................................. 177 I/M test ......................................................494
Identification
Engine ..................................................... 642
Vehicle ......................................................641
Ignition switch (engine switch) ........207
Illuminated entry system ................... 450
Immobilizer system ................................. 79
Indicators ...................................................... 91
Initialization Maintenance ........................... 489, 507
Meter ................................................ 114, 126
Moon roof .............................................. 188
Multi-information display........ 114, 126
Power windows....................................184
Tire pressure warning system ................................ 518
Initiators (tire pressure warning system) ................................ 529
Inside rear view mirror......................... 178
Instrument panel light control ...........................................100, 107
Intercooler ................................................. 511
Intercooler coolant.............................. 509 Capacity.................................................648
Checking .............................................. 509
Preparing and checking before winter ...................................... 331
Interior lights ...........................................449
Intuitive parking assist .........................269
HI