
2314-3. Operating the lights and wipers
4
Driving
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
●Bicycles or similar vehicles may not be detected.
●In the following situations the system may not be able to correctly detect the surround-
ing brightness level. This may cause the lo w beams to remain on or the high beams to
flash or dazzle pedestrians or vehicles ahead. In such a case, it is necessary to manually
switch between the high and low beams.
• When driving in inclement weather (heavy rain, snow, fog, sandstorms, etc.)
• When the windshield is obscured by fog, mist, ice, dirt, etc.
• When the windshield is cracked or damaged
• When the camera sensor is deformed or dirty
• When the temperature of the camera sensor is extremely high
• When the surrounding brightness level is equal to that of headlights, tail lights or fog
lights
• When headlights or tail lights of vehicles ahead are turned off, dirty, changing color,
or not aimed properly
• When the vehicle is hit by water, snow, dust, etc. from a preceding vehicle
• When driving through an area of intermittently changing brightness and darkness
• When frequently and repeated ly driving ascending/descending roads, or roads with
rough, bumpy or uneven surfaces (such as stone-paved roads, gravel roads, etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• When there is a highly reflective object ahea d of the vehicle, such as a sign or mirror
• When the back of a preceding vehicle is highly reflective, such as a container on a
truck
• When the vehicle's headlights are damaged or dirty, or are not aimed properly
• When the vehicle is listing or titling due to a flat tire, a trailer being towed, etc.
• When the headlights are changed between the high beams and low beams repeat- edly in an abnormal manner
• When the driver believes that the high beams may be flashing or dazzling pedestri-
ans or other drivers
■Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
Turn the engine switch off while the following conditions are met.
• The headlight switch is in or .
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.
Turn the engine switch to IGNITION ON mode.
Within 30 seconds after , repeat pulling the he adlight switch lever to the original
position then pushing it to the high beam position quickly 10 times, then leave the lever
in high beam position.
If the sensitivity is changed, the Automatic High Beam indicator is turn on and off 3
times.
Automatic High Beam (head lights) may turn on even the vehicle is stopped.
1
2
32
4

245
4
Driving
RC350_RC300 AWD_RC300_RC F_U(OM24748U)4-5. Using the driving support systems
◆PCS (Pre-Collision System)
P. 250
◆LDA (Lane Departure Alert with steering control)
P. 261
◆Automatic High Beam
P. 228
◆Dynamic radar cruise control
P. 268
Lexus Safety System+
The Lexus Safety System+ consists of the following drive assist systems and
contributes to a safe and comfo rtable driving experience:
WARNING
■Lexus Safety System+
The Lexus Safety System+ is designed to operate under the assumption that the driver
will drive safely, and is designed to help reduce the impact to the occupants and the
vehicle in the case of a collision or assist the driver in normal driving conditions.
As there is a limit to the degree of reco gnition accuracy and control performance that
this system can provide, do not overly rely on this system. The driver is always responsi-
ble for paying attention to the vehicle's surroundings and driving safely.

4707-2. Steps to take in an emergency
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
The operation conditions of the camera sensor are not
met.
The following systems may be suspended until the
problem shown in the message is resolved.
• PCS (Pre-Collision System)
• LDA (Lane Departure Alert with steering control)
• Dynamic radar cruise control
•Automatic High Beam
P. 260
Indicates that the system is temporarily unavailable due
to a malfunction in a sensor other than the camera sen-
sor
A buzzer also sounds.
Turn the LDA (Lane Departure Alert with steering
control) system off, wait for a little while, and then
turn the LDA (Lane Depart ure Alert with steering
control) system back on.
Warning messageDetails/Actions

4757-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
7
When trouble arises
Indicates a malfunction in the Brake Override System
A buzzer also sounds.
Have the vehicle inspecte d by your Lexus dealer
immediately.
Indicates that engine oil level is low
This message may ap pear if the vehicle is stopped on a
slope. Move the vehicle to a level surface and check to
see if the message disappears.
Check the level of engine oil, and add if necessary.
RC F
Indicates a malfunction in:
• The automatic headlight leveling system; or
• The Automatic High Beam system; or
• The LED headlight system
A buzzer also sounds.
Have the vehicle inspected by your Lexus dealer.
Warning messageDetails/Actions

4767-2. Steps to take in an emergency
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
RC350/RC300
Indicates a malfunction in:
• The automatic headlight leveling system; or
• The AFS (Adaptive Front-lighting System)
(if equipped); or
• The Automatic High Beam system; or
• The LED headlight system A buzzer also sounds.
Have the vehicle inspected by your Lexus dealer.
Indicates that the brake pads are worn out
A buzzer also sounds.
Have the vehicle inspected visually by your Lexus
dealer.
Warning messageDetails/Actions
(U.S.A.)
(If equipped) (Canada)

4807-2. Steps to take in an emergency
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
(If equipped)
Indicates that the engine oil should be changed. (After
the engine oil is changed and the message has been
reset.)
Check and change the engine oil, and oil filter by
your Lexus dealer. After chan ging the engine oil, the
message should be reset. ( P. 403)
Indicates that all maintenanc e is required to correspond
to the driven distance on the maintenance schedule
*.
Comes on approximately 5000 miles (8000 km)
after the message has been reset. (The indicator will
not work properly unless the message has been
reset.)
Perform the necessary maintenance. Please reset
the message after the maintenance is performed.
( P. 385)
Indicates that the Automatic High Beam switch is
pressed while the headlights are in low beam.
Turn the high beam on and press the Automatic
High Beam switch again.
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-collision braking and pre-
collision brake assist are stopped (The pre-collision
warning function will be operational)
Turn the VSC on. ( P. 315)
Indicates that the PCS (Pre -Collision System) is tempo-
rarily unavailable
When conditions improve, the system resumes
operation. If this message is displayed continuously,
have the vehicle inspected by your Lexus dealer.
Warning messageDetails/Actions

617Alphabetical index
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Alarm ............................................................ 80
Anchor brackets ...................................... 60
Antennas (smart access system
with push-button start) ......................156
Anti-lock Brake System (ABS).........312 Warning light .......................................453
Approach warning............................... 275
Armrest .................................................... 356
ASC (Active Sound Control)....... 223, 224
Assist grip ................................................358
Audio system
*
Automatic headlight leveling system .....................................................227 Warning light .......................................454
Automatic High Beam ....................... 228
Automatic light control system....... 225
Automatic transmission .......................213 If the shift lever cannot be shifted from P ............. 219
M mode ................................................... 216
Paddle shift switches ............... 215, 216
Average fuel economy .............................136, 137, 138
Average vehicle speed ........................136 Back-up lights
Replacing light bulbs ....................... 434
Wattage .................................................553
Battery ...................................................... 408 Battery checking ............................... 408
If the vehicle battery is discharged .................................... 522
Preparing and checking before winter.................................................... 320
Warning light ....................................... 453
Blind Spot Monitor (BSM) ............... 290
Brake Fluid .......................................................... 407
Parking brake .......................................222
Warning light ....................................... 453
Brake assist ............................................... 312
Break-in tips ............................................. 193
Brightness control Instrument panel light control.......................................... 94, 100
BSM (Blind Spot Monitor) ............... 290 BSM function ....................................... 293
RCTA function .................................... 297
B
*: Refer to the “NAVIGATIO N AND MULTIMEDIA SYSTEM
OWNER’S MANUAL”.

623Alphabetical index
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
Garage door opener .......................... 359
Gauges ................................................. 91, 96
Glove box ................................................. 351
Glove box light ....................................... 351
Head restraints ......................................... 171
Headlight cleaner................................. 233
Headlights ............................................... 225
Automatic High Beam system ..................................................228
Light switch ........................................... 225
Replacing light bulbs ........................439
Heaters Air conditioning system ..................333
Heated steering wheel ....................344
Outside rear view mirrors ............ 338
Seat heaters ..........................................345
Hill-start assist control ..........................312
Hood .......................................................... 393 Open ........................................................393
Hooks Cargo hooks ....................................... 353
Coat hooks .......................................... 358
Retaining hooks (floor mat) .............30
Horn ............................................................. 175 I/M test ..................................................... 390
Identification
Engine .....................................................538
Vehicle .................................................... 537
Ignition switch (engine switch) ........207
Illuminated entry system ................... 348
Immobilizer system ................................. 79
Indicators .....................................................87
Initialization Maintenance ........................... 385, 403
Meter .................................................. 111, 129
Moon roof ...............................................187
Multi-information display.......... 111, 129
Power windows................................... 183
Tire pressure warning system ................................. 413
Initiators (tire pressure warning system) .................................. 418
Inside rear view mirror......................... 176
Instrument panel light control ............................................ 94, 100
Intercooler .............................................. 406
Intercooler coolant.............................. 404 Capacity................................................. 544
Checking ...............................................405
Preparing and checking before winter ........................320, 320
Interior lights .......................................... 348
Intuitive parking assist ........................ 280
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