wipers LEXUS RC300 2017 Owner's Manual

2564-5. Using the driving support systems
■Automatic cancelation of vehicle-to-vehicle distance control mode
Vehicle-to-vehicle distance control driving is automatically canceled in the following situ-
ations:
●Actual vehicle speed falls below approximately 25 mph (40 km/h).
●VSC is activated.
●TRAC is activated for a period of time.
●When the VSC or TRAC system is turned off by pressing the VSC OFF switch.
●The sensor cannot detect correctly because it is covered in some way.
●The windshield wipers are operating at high speed (when the wipers are in AUTO
mode or the high speed wiper operation).
●When snow mode is set.
●Pre-collision braking is activated.
If vehicle-to-vehicle distance control mode is automatically canceled for any other rea-
son, there may be a malfunction in th e system. Contact your Lexus dealer.
■Automatic cancelation of constant speed control mode
Constant speed control mode is automatica lly canceled in the following situations:
●Actual vehicle speed is more than approxim ately 10 mph (16 km/h) below the set vehi-
cle speed.
●Actual vehicle speed falls below approximately 25 mph (40 km/h).
●VSC is activated.
●TRAC is activated for a period of time.
●When the VSC or TRAC system is turned off by pressing the VSC OFF switch.
●Pre-collision braking is activated.
■Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehicle dis-
tance control mode operates properly. (Some obstructions, such as snow, ice and plastic
objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is cancel ed if an obstruction is detected.
■Operation guide display
When the dynamic radar cruise control switch is operated, a guidance display is shown
on the meters for a few seconds as to how to operate the dynamic radar cruise control
switch or dist ance switch. ( →P. 114, 126)
■Warning messages and buzzers fo r dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for caution while driving. ( →P. 577)
Grille cover
Radar sensor
1
2

4827-1. Maintenance and care
WARNING
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may cause the
electrical components etc. to catch fire.
■When cleaning the windshield (vehicles with rain-sensing windshield wipers)
●When the upper part of the windshield where the raindrop sensor is located is
touched by hand
●When a wet rag or similar is held close to the raindrop sensor
●If something bumps against the windshield
●If you directly touch the raindrop sensor bo dy or if something bumps into the raindrop
sensor
■Precautions regarding the exhaust pipes
As exhaust gases cause the exhaust pipes to become quite hot, do not touch the
exhaust pipes while the engine is running or immediately after the engine is turned off.
When washing the vehicle, be careful not to touch the exhaust pipes until they have
cooled sufficiently, as touching hot exhaust pipes can cause burns.
■Precaution regarding the rear bumper with Blind Spot Monitor (if equipped)
If the paint of the rear bumper is chipped or scratched, the system may malfunction. If
this occurs, consult your Lexus dealer.
Set the wipers to the intermittent windshield
wipers. ( →P. 236)
If AUTO mode is selected, the wipers may
operate unexpectedly in the following situa-
tions, and may result in hands being caught or
other serious injuries and cause damage to the
wiper blades.

4837-1. Maintenance and care
7
Maintenance and care
NOTICE
■Application of coatings to the vehicle body (vehicles with CFRP parts)
Do not apply any kind of coating to the vehicle body as doing so may damage the paint
or reduce its durability.
■To prevent paint deterioration and corrosion on the body and components (aluminum
wheels etc.)
●Wash the vehicle immediatel y in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the paint surface
• After driving in an area contaminated wi th soot, oily smoke, mine dust, iron pow-
der or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoli ne are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
●To prevent the wheels from corroding, remove any dirt and store in a place with low
humidity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic subs tances or scrub with a hard brush.
This may damage the surfaces of the lights.
●Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.
■To prevent damage to the windshield wiper arms
When lifting the wiper arms away from the windshield, pull the driver side wiper arm
upward first, and repeat for the passenger side. When returning the wipers to their
original position, do so from the passenger side first.
■When using an automatic car wash (vehicle s with rain-sensing windshield wipers)
Set the wipers to the intermittent windshield wipers. ( →P. 236)
If AUTO mode is selected, the wipers may operate and the wiper blades may be dam-
aged.

4937-2. Maintenance
7
Maintenance and care
Vehicle exterior
ItemsCheck points
Doors/trunk• Do the doors/trunk operate smoothly?
Engine hood• Does the engine hood lock system work properly?
Fluid leaks• There should not be any signs of fluid leakage after
the vehicle has been parked.
Tires
• Is the tire inflation pressure correct?
• The tires should not be damaged or excessively worn.
• Have the tires been rotated according to the mainte- nance schedule?
• The wheel nuts should not be loose.
Windshield wipers
•The wiper blades should no t show any signs of crack-
ing, splitting, wear, contamination or deformation.
• The wiper blades should clear the windshield without
streaking or skipping.
WARNING
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before performing
maintenance checks.

5778-2. Steps to take in an emergency
8
When trouble arises
(If equipped)
Indicates that the dynamic radar cruise control system is
unable to judge vehicle-to-vehicle distanceA buzzer also sounds.
→ Turn off snow mode.
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.
(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 th at 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. 319) satisfied for approximately 10
minutes. If the warning me ssage 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 co ntrol 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.
Warning messageDetails/Actions

717Alphabetical index
Seats, Front ...............................................164Adjustment ............................................. 164
Adjustment precautions .................. 166
Child seats/child restraint system installation............................. 58
Cleaning ................................................ 485
Driving position memory ................ 169
Head restraints ......................................173
Jam protection function ................... 165
Properly sitting in the seat ................ 32
Seat heaters ..........................................446
Seat position memory....................... 169
Seat ventilators .................................... 447
Seats, Rear ................................................ 167 Fold down the seatback ...................167
Luggage security system ................ 148
Sensor Automatic headlight system ......... 225
Automatic High Beam system ....................................................231
Inside rear view mirror ......................179
Intuitive parking assist ......................269
LDA (Lane Departure Alert) .......263
Radar sensor .................256, 307, 316
Rain-sensing windshield wipers ...................................................239
Service reminder indicators ............... 88 Shift lever ................................................... 213
Automatic transmission .................... 213
If the shift lever cannot be shifted from P ..............218
Shift lock system ..................................... 217
Shift position and gear position........................................... 96, 102
Side airbags ............................................... 40
Side marker lights .................................224 Light switch........................................... 224
Replacing light bulbs ...................... 550
Side mirrors ............................................. 180 Adjusting and folding ....................... 180
BSM (Blind spot monitor) .............. 313
Linked mirror function when reversing................................... 181
Mirror position memory ..................169
Side turn signal lights .......................... 220 Replacing light bulbs ...................... 550
Turn signal lever ................................. 220
Side windows ...........................................183
Slip indicator .......................................... 566
Smart access system with push-button start ....................... 152 Antenna location.................................. 152
Entry functions ..............................141, 147
Starting the engine ............................ 207

723Alphabetical index
Washer ..................................................... 233Checking................................................. 516
Preparing and checking before winter ..................................... 331
Switch....................................................... 233
Washing and waxing...........................480
Weight Cargo capacity ...................................204
Load limits..............................................204
Weight.................................................... 640
Wheels ...................................................... 534 Replacing wheels ...............................534
Size ............................................................652
Window lock switch ............................. 183
Windows ................................................... 183 Power windows ................................... 183
Rear window defogger...................439
Windshield wiper de-icer ................. 440
Windshield wipers ............................... 233 Intermittent windshield wipers with interval adjuster ..... 233
Rain-sensing windshield wipers ...................................................235
Winter driving tips..................................331
Wireless remote control .....................136 Battery-Saving Function.................. 154
Locking/Unlocking.................... 141, 147
Replacing the battery ...................... 538
WMA disc ............................................... 369 XM
® Satellite Radio ........................... 363
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