cruise control LEXUS RC350 2015 Owner's Manual

2474-5. Using the driving support systems
4
Driving
RC350/RCF_U (OM24636U)
WA R N I N G
■Handling the radar sensor
Observe the following to ensure the dynamic radar cruise control can function effec-
tively.
Otherwise, the radar sensor may not detect correctly and could result in an accident.
●Keep the sensor and grille cover clean at all times.
Clean the sensor and grille cover with a soft cloth so you do not mark or damage
them.
●Do not subject the sensor or surr ounding area to a strong impact.
If the sensor moves even slightly off posi tion, the system may become inaccurate or
malfunction. If the sensor or surrounding area is subject to a strong impact, always
have the area inspected and adjusted by your Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille cover or surrounding area.
●Do not modify or paint the sensor and grille cover.
●If the radar sensor needs to be replaced, contact your Lexus dealer.

5448-2. Steps to take in an emergency
RC350/RCF_U (OM24636U)
Indicates that the engine coolant temperature is too highA buzzer also sounds.
 P. 5 9 7
(If equipped)
Indicates that the radar sensor is dirty or covered with
ice
A buzzer also sounds.
 Clean the sensor.
(If equipped)
Indicates that the dynamic radar cruise control system is
unable to judge vehicle-to-vehicle distance
A buzzer also sounds.
 Tu r n o f f s n o w m o d e .
If the windshield wipers are on, turn them off or set
them to a mode other than AUTO or high speed
wiper operation.
(If equipped)
Indicates that the LDA (Lane Departure Alert) system is
suspended (The camera sensor temperature is higher
than the operation temperature range)
A buzzer also sounds.
 Restart the LDA after driving for a while.
Wa r n i n g m e s s a g eDetails/Actions

5458-2. Steps to take in an emergency
8
When trouble arises
RC350/RCF_U (OM24636U)
(If equipped)
Indicates that a Blind Spot Monitor sensor or the sur-
rounding area on the rear bumper is dirty or covered
with snow, ice, etc. or that a sensor is misaligned
A buzzer also sounds.
 Clean off the dirt, snow, ice, etc. and drive the vehi-
cle with the operation conditions of the BSM func-
tion ( P. 303) satisfied for approximately 10
minutes. If the warning message does not disappear,
the sensor may be misaligned. Have the vehicle
inspected by your Lexus dealer.
Indicates a malfunction in:
• The cruise control system; or
• The dynamic radar cruise control system (if equipped)
Press the “ON/OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates a malfunction in the LDA (Lane Departure
Alert) system
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates a malfunction in the PCS (Pre-Collision Sys-
tem)
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer
immediately.
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)

5548-2. Steps to take in an emergency
RC350/RCF_U (OM24636U)
■Wa r n i n g m e s s a g e s
The warning message illustrations used are intended as examples, and may differ from
the image that is actua lly displayed on the multi-information display.
■Warning message in radar cruise mode (if equipped)
In the following situations, the warning messag e may not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the vehicle
ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■The LDA (Lane Departure Alert) lane departure warning function
In the following situations, the warning messag e will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LDA system func-
tions
●When the lane lines cannot be recognized
■Reset the maintenance data (U.S.A. only)
Make sure to reset the oil change system. ( P. 4 6 7 )
■Conditions that the tire pressure warning system may not function properly
 P. 4 9 6
■Warning buzzer
P. 5 3 6

5728-2. Steps to take in an emergency
RC350/RCF_U (OM24636U)
WA R N I N G
■When using the spare tire
●Remember that the spare tire provided is specifically designed for use with your vehi-
cle. Do not use your spare tire on another vehicle.
●Do not use more than one spare tires simultaneously.
●Replace the spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking.
■When the spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may not
operate correctly:
Also, not only can the following system not be utilized fully, but it may even negatively
affect the drive-train components:
• AWD system (if equipped)
■Speed limit when using the spare tire
Do not drive at speeds in excess of 50 mp h (80 km/h) when a spare tire is installed on
the vehicle.
The spare tire is not designed for driving at high speeds. Failure to observe this precau-
tion may lead to an accident causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibility of personal injury during a collision or sudden brak-
ing.
• ABS & Brake assist
•VSC
•TRAC
• Cruise control (if equipped)
• Dynamic radar cruise control (if equipped)
• PCS (if equipped)
•EPS
• Adaptive Variable Suspension System (if equipped)
• LDA (Lane Departure Alert) (if equipped) • VGRS (if equipped)
• LDH (Lexus Dynamic Handling sys-
tem) (if equipped)
• DRS (Dynamic Rear Steering) (if equipped)
• VDIM (Vehicle Dy namics Integrated
Management)
• Tire pressure warning system
• Lexus parking assist monitor
• Intuitive parking assist (if equipped)
• Navigation system (if equipped)

667Alphabetical index
RC350/RCF_U (OM24636U)
Child safety ................................................ 56Airbag precautions .............................. 42
Battery precautions .............489, 596
Child restraint system ......................... 57
How your child should wear the seat belt .......................................... 36
Installing child restraints..................... 57
Moon roof precautions.................... 178
Power window lock switch .............. 171
Power window precautions ...........174
Removed electronic key battery precautions.............. 508
Seat belt extender precautions ........................................... 39
Seat belt precautions ..........................38
Seat heater precautions..................425
Trunk precautions............................... 144 Cleaning .......................................458, 463
Aluminum wheels .............................. 459
Exterior ...................................................458
Interior ..................................................... 463
Seat belts................................................ 464
Clock......................................................... 436
Coat hooks ............................................. 439
Compass .................................................. 447
Condenser.............................................. 485
Console box ............................................432
Cooling system ..................................... 484 Engine overheating .......................... 597
Cruise control Cruise control ..................................... 229
Dynamic radar cruise control ..... 233
Cup holders............................................ 433
Current fuel consumption ........ 106, 107
Curtain shield airbags ........................... 40
Customizable features ...................... 635

668Alphabetical index
RC350/RCF_U (OM24636U)
Daytime running light system .......... 209
DefoggerOutside rear view mirrors .............420
Rear window ........................................420
Windshield ............................................420
Differential Front differential ..................................... 611
Rear differential .................................... 612
Dimension ............................................... 604
Dinghy towing..........................................192
Display Drive information ....................... 106, 112
Dynamic radar cruise control...... 233
LDA (Lane Departure Alert) .......249
Multi-information display ....... 103, 110
Warning message ............................ 539
Distance .......................................... 106, 107
Do-it-yourself maintenance ............. 473
Door courtesy lights Location ..................................................428
Wattage ................................................... 619
Door lock Doors ........................................................ 135
Smart access system with push-button start ............................. 146
Wireless remote control ................. 130 Doors .......................................................... 135
Automatic door locking and unlocking system ................... 138
Door lock................................................. 137
Open door warning buzzer ..........136
Open door warning light .............. 534
Outside rear view mirrors ............. 168
Side windows ..........................................171
Drive info 1/Drive info 2 ............. 107, 119
Drive information .......................... 106, 112 Resetting ......................................... 106, 112
Driver’s seat position memory.......... 157
Driving ....................................................... 180 Break-in tips ............................................ 181
Correct driving posture .....................32
Driving mode select switch .......... 278
Procedures ............................................ 180
Winter drive tips ..................................315
DRS (Dynamic Rear Steering) ....... 282 Warning message.............................539
Dynamic radar cruise control ......... 233
Dynamic Rear Steering (DRS) ....... 282 Warning message.............................539
D

674Alphabetical index
RC350/RCF_U (OM24636U)
MaintenanceDo-it-yourself maintenance.......... 473
General maintenance .................... 469
Maintenance data ............................. 604
Maintenance requirements.......... 466
Maintenance system .................... 107, 119
Malfunction indicator lamp .............. 533
Master warning light ........................... 534
Meter Changing the display...............93, 100
Indicators.................................................. 85
Instrument panel light control ............................................ 94, 101
Meters............................................... 90, 96
Multi-information display ....... 103, 110
Operating the meter control switches ......................................... 105, 111
Settings .............................................107, 119
Warning lights ........................................84
Warning message ............................ 539
Micro dust and pollen filter .............. 420
Mirrors Inside rear view mirror ..................... 166
Outside rear view mirror defoggers ...........................................420
Outside rear view mirrors .............. 168
Vanity mirrors ......................................435 MMS (Multimedia messaging
service).................................................. 386
Mobile Assistant ................................... 328
Moon roof ................................................. 175 Door lock linked moon roof operation...................... 176
Jam protection function.................... 176
Operation................................................ 175
MP3 disc ................................................. 352
Multi-information display........... 103, 110 Audio system-linked ................ 103, 110
Drive information........................ 106, 112
Dynamic radar cruise control ..... 233
“F” content .................................................114
G-force ...................................................... 117
Lap timer....................................................114
LDA (Lane Departure Alert)....... 249
Navigation system-linked ..... 103, 110
Settings ............................................ 107, 119 switch settings...................... 107, 119
Switching the display ................. 105, 111
Torque distribution .............................. 116
Warning message.............................539
Navigation system
*
Noise from under vehicle ........................8
M
N

676Alphabetical index
RC350/RCF_U (OM24636U)
Radar cruise control (dynamic radar cruise control) ........................ 233
Radiator .................................................... 485
Radio.......................................................... 346
Rear seats ................................................. 155 Fold down the seatback .................. 155
Luggage security system .................142
Rear turn signal lights ......................... 204 Replacing light bulbs ......................... 516
Turn signal lever .................................204
Wattage ................................................... 619
Rear view mirror Inside rear view mirror ..................... 166
Outside rear view mirrors .............. 168 Rear window defoggers .................... 420
Refueling...................................................225
Capacity................................................. 607
Fuel types............................................... 607
If the fuel filler door cannot be opened ..........................227
Opening the fuel tank cap .............227
Remote Touch
*
Replacing Electronic key battery ..................... 507
Fuses ....................................................... 509
Light bulbs............................................... 512
Tires ......................................................... 560
Reporting safety defects for U.S. owners .................................. 648
Resetting the message indicating maintenance is required ................. 467
Rev indicator ..................................... 92, 99
Rev peak ........................................... 92, 100
R

679Alphabetical index
RC350/RCF_U (OM24636U)
SwitchesActive rear wing switch ................... 310
ASC (Active Sound Control) switch................................................... 206
Audio remote control switches ............................................... 327
Automatic High Beam system ..................................................... 211
BSM (Blind spot monitor) switch.................................................... 297
Cruise control switch........... 229, 233
Door lock switches .............................137
Driving mode select switch ..........278
Driving position memory switches ................................................ 157
Dynamic radar cruise control switch ................................... 233
Emergency flashers switch ........... 522
Engine switch ........................................ 193
Fog light switch .................................... 216
Garage door opener switches .............................................. 440
Heated steering wheel switch....................................................425
Ignition switch ....................................... 193
Intuitive parking assist switch ...... 255
LDA (Lane Departure Alert) switch....................................................249
Light switches ..................................... 208
Meter control switches ............. 105, 111 Moon roof switches ........................... 175
Outside rear view mirror
switches ............................................... 168
Paddle shift switches..............201, 202
PCS OFF switch .................................. 291
Power door lock switch ................... 137
Power window switches .................... 171
Rear window and outside rear view mirror defoggers
switch ................................................... 420
Seat heater switches ........................ 426
Seat ventilator switches ...................427
Snow mode switch ...........................200
“SOS” button .........................................451
Talk switch............................................ 388
Telephone switches......................... 388
Tilt and telescopic steering control switch ..................164
Tire pressure warning reset switch ................................................... 493
Trunk opener main switch .............. 142
Trunk opener switch ............................141
TVD (Torque Vectoring Differential) switch ........................... 313
Vehicle-to-vehicle distance button ....................................................237
VSC OFF switch ............................... 284
Window lock switch ............................ 171
Windshield wiper and washer switch ........................... 217
Windshield wiper de-icer switch ..................................................... 421