tow LEXUS RC300H 2017 Owner's Manual

2484-3. Operating the lights and wipers
RC300h_EE(OM24740E)
WARNING
■Caution regarding the use of windshield wipers in AUTO mode
The windshield wipers may operate unexpectedly if the sensor is touched or the wind- shield is subject to vibration in AUTO mode. Take care that your fingers or anything
else do not become caught in the windshield wipers.
■Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes warm. The
fluid may freeze on the windshield and cause low visibility. This may lead to an accident, resulting in death or serious injury.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■When there is no washer fluid spray from the nozzle
Damage to the washer fluid pump may be caused if the lever is pulled toward you and held continually.
■When a nozzle becomes blocked
In this case, contact any authorized Lexus de aler or repairer, or another duly qualified and equipped professional.
Do not try to clear it with a pin or other object. The nozzle will be damaged.

2544-5. Using the driving support systems
RC300h_EE(OM24740E)
To change the set speed, operate the lever until the desired set speed is obtained.
Increases the speed
Decreases the speed
Fine adjustment: Momentarily move
the lever in the desired direction.
Large adjustment: Hold the lever in the
desired direction.
The set speed will be increased or decreased as follows:
Fine adjustment: By approximately 1.6 km/h (1 mph) each time the lever is operated.
Large adjustment: The set speed can be incr eased or decreased continually until the lever is released.
Pulling the lever toward you cancels
the constant speed control.
The speed setting is also canceled when the brake pedal is depressed.
Pushing the lever up resumes the
constant speed control.
However, resuming is available when the vehicle speed is more than approxi-mately 40 km/h (25 mph).
Adjusting the set speed
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Canceling and resuming the constant speed control
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2564-5. Using the driving support systems
RC300h_EE(OM24740E)
WARNING
■To avoid operating the cruise control by mistake
Switch the cruise control off using the “ON/OFF” button when not in use.
■Situations unsuitable for cruise control
Do not use cruise control in any of the following situations. Doing so may result in loss of control and could cause an accident resulting in death orserious injury.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●On steep hillsVehicle speed may exceed the set sp eed when driving down a steep hill.
●During emergency towing

2624-5. Using the driving support systems
RC300h_EE(OM24740E)
Pulling the lever toward you cancels
the speed control.
The speed setting is also canceled when
the brake pedal is depressed.
Pushing the lever up resumes the
speed control and returns vehicle
speed to the set speed.
Resuming is available when the vehicle speed is more than approximately 40km/h (25 mph).
When your vehicle is too close to a
vehicle ahead, and sufficient automatic
deceleration via the cruise control is
not possible, the display will flash and
the buzzer will sound to alert the driver.
An example of this would be if another
driver cuts in front of you while you are
following a vehicle. Depress the brake
pedal to ensure an appropriate vehicle-
to-vehicle distance.
■Warnings may not occur when
In the following instances, there is a possibility that the warnings will not occur:
●When the speed of the preceding vehicle matches or exceeds your vehicle
speed
●When the preceding vehicle is traveling at an extremely slow speed
●Immediately after the cruise control speed was set
●When depressing the accelerator pedal
Canceling and resuming the speed control
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Approach warning (vehicle-to-vehicle distance control mode)

2694-5. Using the driving support systems
4
Driving
RC300h_EE(OM24740E)
WARNING
■Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations. Doing so may result in inappropriate speed control and could cause an accident result-
ing in death or serious injury.
●Roads where there are pedestrians, cyclers, etc.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●On steep downhills, or where there are sudden changes between sharp up and down gradients Vehicle speed may exceed the set sp eed when driving down a steep hill.
●At entrances to freeways and highways
●When weather conditions are bad enough that they may prevent the sensors from detecting correctly (fog, snow, sandstorm, heavy rain, etc.)
●When an approach warning buzzer is heard often
●During emergency towing

2844-5. Using the driving support systems
RC300h_EE(OM24740E)
■If a message is displayed on the multi-information display
 P. 545
WARNING
■When using the Lexus parking assist-sensor
Observe the following precautions.
Failing to do so may result in the vehicle be ing unable to be driven safely and possibly cause an accident.
●Do not use the sensor at speeds in excess of 10 km/h (6 mph).
●The sensors’ detection areas and reaction times are limited. When moving forward or reversing, check the areas surrounding the vehicle (especially the sides of the vehi-cle) for safety, and drive slowly, using the brake to control the vehicle’s speed.
●Do not install accessories within the sensors’ detection areas.
■Limitations of the sensors
●The detection areas of the sensors are limited to the areas around the vehicle’s front
and rear bumpers.
●Certain vehicle conditions and surrounding environments, such as the following, may affect the ability of the sensors to correctly detect objects. Pay particular attention in
the following situations. Failure to do so may result in the vehicle being driven unsafely, possibly leading to an accident.
• When there is dirt, snow or ice on a sens or (Cleaning the sensor will resolve this
problem.) • When the sensor is frozen (Thawing the area will resolve this problem.)In especially cold weather, if a sensor is frozen the screen may show an abnormal
display, or objects may not be detected • When a sensor is covered in any way• When the vehicle is leaning considerably to one side
• When driving on an extremely bumpy road, incline, gravel, or grass • When the vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines,air brakes of large vehicles, or other loud noises producing ultrasonic waves
• When there is another vehicle equipped with parking assist sensor in the vicinity • When the sensor is coated with a sheet of spray or heavy rain• When the vehicle is equipped with a fender pole or wireless antenna
• When a towing eyelet is installed • When a bumper or sensor receives a strong impact• When the vehicle is approaching a tall or curved curb
• When driving in harsh sunlight or intense cold weather • When an object is directly under a bumper• When objects become too close to the sensors
• When a non-genuine Lexus suspension (l owered suspension, etc.) is installed In addition to the situations above, there are instances in which, because of theirshape, signs and other objects may be judged by the sensor to be closer than they
are.

3204-5. Using the driving support systems
RC300h_EE(OM24740E)
BSM main switch
This switch is for both the BSM function and RCTA function. Pressing the switch turns the system on or of f. When the switch is turned on, the indi-
cator on the switch illuminates.
Outside rear view mirror indicators
BSM function: When a vehicle is detected in a blind spot of the outside rear view mirrors orapproaching rapidly from behind into a blind spot, the outside rear view mirror indica-
tor on the detected side will illuminate. If th e turn signal lever is operated toward the detected side, the outside rear view mirror indicator will flash.
RCTA function:
When a vehicle approaching from the right or left at the rear of the vehicle is detected, both outside rear vi ew mirror indicators will flash.
RCTA buzzer (RCTA function only)
If a vehicle approaching from the right or left at the rear of the vehicle is detected, a buzzer will sound. The buzzer also sounds for approximately 1 second immediately after the BSM main switch is operated to turn the system on.
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3334-5. Using the driving support systems
4
Driving
RC300h_EE(OM24740E)
●Instances of the RCTA function unnecessarily detecting a vehicle and/or object may increase in the following situations:
• When a vehicle passes by the side of your vehicle
• When the distance between your vehicle and metal objects, such as a guardrail,
wall, sign, or parked vehicle, which may reflect electrical waves toward the rear of the vehicle, is short
• When the parking space faces a street and vehicles are being driven on the street

4526-3. Using the storage features
RC300h_EE(OM24740E)
Raise the hooks when needed.
The cargo hooks are provided for securing loose items.
Loosen the belt
Tighten the belt
Trunk features
Cargo hooks
WARNING
To avoid injury, always return the cargo hooks to their stowed positions when not in use.
First-aid kit storage belt
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469
7
Maintenance and care
RC300h_EE(OM24740E)
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections.
ItemsParts and tools
12-volt battery con-
dition ( P. 481)
•Grease
• Conventional wrench (for terminal clamp bolts)
Engine/power con- trol unit coolant level
( P. 478)
• “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol-based non-silicate, non-amine, non-nitriteand non-borate coolant with long-life hybrid organic acid
technology “Toyota Super Long Life Coolant” is pre-mixed with 50%coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level ( P. 474)
• “Toyota Genuine Motor Oil” or equivalent
•Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
( P. 514)• Fuse with same amperage rating as original
Light bulbs ( P. 518)
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver• Flathead screwdriver
•Wrench
Radiator and condenser ( P. 480)
Tire inflation
pressure ( P. 505)• Tire pressure gauge• Compressed air source
Washer fluid ( P. 480)
• Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)