warning LEXUS RC350 2019 Owners Manual

1954-5. Using the driving support systems
RC350AWD_RC350_RC300AWD_RC30
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4
Driving
input over an extended period of time. The
steering wheel may feel heavy as a result.
Should this occur, re frain from excessive
steering input or stop the vehicle and turn
the engine off. The EPS system should
return to normal within 10 minutes.
WARNING
■The ABS does not operate effectively
when
●The limits of tire gripping performance
have been exceeded (such as exces-
sively worn tires on a snow covered
road).
●The vehicle hydroplanes while driving
at high speed on wet or slick roads.
■Stopping distance when the ABS is
operating may exceed that of normal
conditions
The ABS is not designed to shorten the
vehicle’s stopping di stance. Always main-
tain a safe distance from the vehicle in
front of you, especially in the following
situations:
●When driving on dirt, gravel or
snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes
or uneven surfaces
■TRAC may not operate effectively
when
Directional control and power may not
be achievable while driving on slippery
road surfaces, even if the TRAC system is
operating. Drive the vehicle carefully in
conditions where stability and power
may be lost.
■Hill-start assist control does not oper-
ate effectively when
●Do not overly rely on hill-start assist
control. Hill-start assist control may
not operate effectively on steep
inclines and roads covered with ice.
●Unlike the parking brake, hill-start
assist control is not intended to hold
the vehicle stationary for an extended
period of time. Do not attempt to use
hill-start assist control to hold the vehi-
cle on an incline, as doing so may lead
to an accident.
■When the VSC is activated
The slip indicator light flashes. Always
drive carefully. Reckless driving may
cause an accident. Exercise particular
care when the indicator light flashes.
■When the TRAC/VSC systems are
turned off
Be especially careful and drive at a speed
appropriate to the road conditions. As
these are the systems to help ensure
vehicle stability and driving force, do not
turn the TRAC/VSC systems off unless
necessary.
■Replacing tires
Make sure that all ti res are of the speci-
fied size, brand, tread pattern and total
load capacity. In addition, make sure that
the tires are inflated to the recom-
mended tire inflation pressure level.
The ABS, TRAC and VSC systems will
not function correctly if different tires are
installed on the vehicle.
Contact your Lexus dealer for further
information when replacing tires or
wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or
modifying the suspensi on will affect the
driving assist systems, and may cause a
system to malfunction.

1964-6. Driving tips
RC350AWD_RC350_RC300AWD_RC30
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4-6.Driving tips
Use fluids that are appropriate to
the prevailing outside temperatures.
• Engine oil
• Engine coolant
• Washer fluid
Have a service technician inspect
the condition of the battery.
 Have the vehicle fitted with four
snow tires or purchase a set of tire
chains for the rear tires.
*
Ensure that all tires are the specified size
and brand, and that chains match the size
of the tires.
*: Tire chains cannot be mounted on vehi-
cles with front and rear tires of differing
sizes and vehicles with LDH and 19-inch
tires.
Perform the following according to the
driving conditions:
 Do not try to forcibly open a window
or move a wiper that is frozen. Pour
Winter driving tips
Carry out the necessary prepara-
tions and inspections before driving
the vehicle in winter. Always drive
the vehicle in a manner appropriate
to the prevailing weather condi-
tions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in a loss of
vehicle control and cause death or seri-
ous injury.
●Use tires of the specified size.
●Maintain the recommended level of air
pressure.
●Do not drive in excess of 75 mph (120
km/h), regardless of the type of snow
tires being used.
●Use snow tires on all, not just some
wheels.
■Driving with tire chains
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in the vehicle
being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed
limit specified for the tire chains being
used, or 30 mph (50 km/h), which-
ever is lower.
●Avoid driving on bumpy road surfaces
or over potholes.
●Avoid sudden acceleration, abrupt
steering, sudden br aking and shifting
operations that cause sudden engine
braking.
●Slow down sufficiently before entering
a curve to ensure that vehicle control is
maintained.
●Do not use LDA (Lane Departure
Alert with steering control) system.
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow
tires from Lexus dealers or legitimate tire
retailers.
This is because the removal and attach-
ment of snow tires affects the operation
of the tire pressure warning valves and
transmitters.
Before driving the vehicle

1984-6. Driving tips
RC350AWD_RC350_RC300AWD_RC30
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Regulations regarding the use of tire
chains vary depending on location and
type of road. Always check local regu-
lations before installing chains.
■Tire chain installation
Observe the following precautions when
installing and removing chains:
●Install and remove tire chains in a safe
location.
●Install tire chains on the rear tires. Do not
install tire chains on the front tires.
●Install tire chains on rear tires as tightly as
possible. Retighten chains after driving
1/4 1/2 mile (0.5 1.0 km).
●Install tire chains following the instruc-
tions provided with the tire chains.
Regulations on the use of tire
chains
NOTICE
■Fitting tire chains
The tire pressure warning valves and
transmitters may not function correctly
when tire chains are fitted.

2115-2. Using the air conditioning system
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Interior features
●To reduce potential odors from occur-
ring:
• It is recommended that the air condition-
ing system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be
delayed for a short period of time imme-
diately after the air conditioning system is
started in automatic mode.
■Air conditioning filter
 P.264
■Customization
Some functions can be customized.
(  P.339)
■Location of air outlets
The air outlets and air volume changes
according to the selected airflow
mode.
■Adjusting the position of and open-
ing and closing the air outlets
Front Direct air flow to the left or right, up
or down
Turn the knob to open or close the
vent
Rear
Direct air flow to the left or right, up
or down
To close the vent, move the knob to the
most outside position.
Air outlets
WARNING
■To prevent the windshield from fog-
ging up
●Do not use during cool air
operation in extremely humid weather.
The difference between the tempera-
ture of the outside air and that of the
windshield can cause the outer surface
of the windshield to fog up, blocking
your vision.
●Do not place anything on the instru-
ment panel which may cover the air
outlets. Otherwise, air flow may be
obstructed, preventing the windshield
defoggers from defogging.
A
B
A

2125-2. Using the air conditioning system
RC350AWD_RC350_RC300AWD_RC30
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*: If equipped
Turn the heated steering wheel on/off
The indicator light comes on when the
WARNING
■To prevent burns
●Do not touch the rear view mirror sur-
faces when the outside rear view mir-
ror defoggers are on.
●Do not touch the glass at lower part of
the windshield or to the side of the
front pillars when the windshield wiper
de-icer is on.NOTICE
■To prevent battery discharge
Do not leave the air conditioning system
on longer than necessary when the
engine is stopped.
Heated steering wheel*/seat
h
eaters*/seat ventilators*
Heated steering wheel and seat
heaters heat the side grips of the
steering wheel and seats, respec-
tively. Seat ventilators maintain
good ventilation using a fan built
into the seat.
WARNING
■To prevent minor burn injuries
Care should be taken if anyone in the fol-
lowing categories comes in contact with
the steering wheel or seats when the
heater is on:
●Babies, small children, the elderly, the
sick and the physically challenged
●Persons with sensitive skin
●Persons who are fatigued
●Persons who have taken alcohol or
drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
NOTICE
■To prevent damage to the seat heat-
ers and seat ventilators
Do not put heavy objects that have an
uneven surface on the seat and do not
stick sharp objects (n eedles, nails, etc.)
into the seat.
■To prevent battery discharge
Do not use the functions when the
engine is off.
Heated steering wheel
A

2135-2. Using the air conditioning system
RC350AWD_RC350_RC300AWD_RC30
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5
Interior features
heated steering wheel is operating.
■Operation condition
The engine switch is in IGNITION ON
mode.
■Timer function
The heated steering wheel will automati-
cally turn off after about 30 minutes.
Vehicles without seat ventilators
Each time the switch is pressed, the
intensity of the seat heater changes
and the level indicator lights (amber) light as follows:
Hi (3 segments lit) Mid (2 segments
lit)  Lo (1 segment lit) Off
Vehicles with seat ventilators
Each time the switch is pressed, the
intensity of the seat heater changes
and the level indicator lights (amber) light as follows:
Hi (3 segments lit) Mid (2 segments
lit)  Lo (1 segment lit) Off
■Operation condition
The engine switch is in IGNITION ON
mode.
■Seat heater timer control
To enable seat heater timer control, press
and hold the driver and front passenger
seat heater switches at the same time when
the vehicle is stopped until a buzzer sounds
once. If a seat heater is turned on while seat
heater timer control is enabled, the intensity
of the seat heater w ill automatically change
from Hi Mid Lo.
The timing of the chan ge in seat heater
intensity differs depending on the tempera-
ture inside the cabin, etc. when the seat
heater is operating.
To disable seat heater timer control, press
and hold the driver and front passenger
seat heater switches at the same time until a
buzzer sounds twice.
Seat heaters
A
WARNING
■To prevent overheating and minor
burn injuries
Observe the following precautions when
using the seat heaters.
●Do not cover the seat with a blanket or
cushion when using the seat heater.
●Do not use seat heater more than nec-
essary.
A

2175-4. Using the storage features
RC350AWD_RC350_RC300AWD_RC30
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5
Interior features
5-4.Using the storage features
Glove box ( P.217)
Cup holders ( P.218)
Console box ( P.218)
1
Open (press the button)
2
Unlock with the mechanical key
3
Lock with the mechanical key
List of storage features
Location of the storage features
A
B
C
WARNING
■Items that should not be left in the
storage spaces
Do not leave glasses, lighters or spray
cans in the storage spaces, as this may
cause the following when cabin tempera-
ture becomes high:
●Glasses may be deformed by heat or
cracked if they come into contact with
other stored items.
●Lighters or spray cans may explode. If
they come into contact with other
stored items, the lighter may catch fire
or the spray can may release gas,
causing a fire hazard.
Glove box

2185-4. Using the storage features
RC350AWD_RC350_RC300AWD_RC30
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■Glove box light
The glove box light turns on when the
engine switch is in ACCESSORY or IGNI-
TION ON mode.
■Trunk opener main switch
The trunk opener main switch is located in
the glove box. ( P.92)
■Removing the partition
The insert inside the glove box can be
removed.
Push the knob.
Lift by hand to fully open the console box.
WARNING
■Caution while driving
Keep the glove box closed. In the event
of sudden braking or sudden swerving,
an accident may occur due to an occu-
pant being struck by the open glove box
or the items stored inside.
Cup holders
WARNING
■Items unsuitable for the cup holder
Do not place anything other than cups or
aluminum cans in the cup holders.
Other items may be thrown out of the
holders in the event of an accident or
sudden braking, causing injury. If possi-
ble, cover hot drinks to prevent burns.
Console box
WARNING
■Caution while driving
Keep the console box closed.
Injuries may result in the event of an acci-
dent or sudden braking.

2195-4. Using the storage features
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5
Interior features
Raise the hooks when needed.
The cargo hooks are provided for securing
loose items.
1Loosen the belt
2
Tighten the belt
Trunk features
Cargo hooks
WARNING
■When the cargo net is not in use
To avoid injury, always return the cargo
hooks on the floor to their stowed posi-
tions.
First-aid kit storage belt

2205-5. Using the other interior features
RC350AWD_RC350_RC300AWD_RC30
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5-5.Using the other interior features
An assist grip installed on the ceiling
can be used to support your body
while sitting on the seat.
To use the coat hook, push it in.The GPS clock’s time is automatically
adjusted by utilizing GPS time infor-
mation. For details, refer to “NAVIGA-
TION AND MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
Please use as a power supply for elec-
tronic goods that use less than 12
VDC/10 A (power consumption of
120 W).
Open the lid.
Other interior features
Assist grips
WARNING
■Assist grip
Do not use the assist grip when getting in
or out of the vehicle or rising from your
seat.
NOTICE
■To prevent damage to the assist grip
Do not put a heavy load on the assist grip.
Coat hooks
WARNING
■Items that cannot be hung on the coat
hook
Do not hang coat hangers or other hard
or sharp objects on the hook. If the SRS
curtain shield airbag s deploy, these items
may become projectiles, causing death
or serious injury.
Clock
Power outlet