power steering LEXUS RC300 2018 Owners Manual

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RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 53-1. Key information
Keys .................................................. 140
3-2. Opening, closing and
locking the doors and
trunk
Doors ................................................145
Trunk .................................................. 151
Smart access system with
push-button start.......................156
3-3. Adjusting the seats
Front seats ....................................... 161
Rear seats .......................................164
Power easy access system/
driving position memory/
memory recall function ..........166
Head restraints .............................. 171
3-4. Adjusting the steering
wheel and mirrors
Steering wheel .............................. 174
Inside rear view mirror .............. 176
Outside rear view mirrors .......178
3-5. Opening, closing the
windows and moon roof
Power windows ........................... 182
Moon roof ...................................... 186 4-1. Before driving
Driving the vehicle ......................192
Cargo and luggage ....................201
Vehicle load limits ..................... 204
Trailer towing .............................. 205
Dinghy towing ............................. 206
4-2. Driving procedures
Engine (ignition) switch ........... 207
Automatic transmission ............213
Turn signal lever ........................... 221
Parking brake .............................. 222
ASC
(Active Sound Control)
(RC350/RC300) ................ 223
ASC
(Active Sound Control)
(RC F) .......................................... 224
4-3. Operating the lights and
wipers
Headlight switch ........................ 225
Automatic High Beam............. 228
Fog light switch ........................... 232
Windshield wipers and
washer ......................................... 233
4-4. Refueling
Opening the fuel tank cap ....... 2413
Operation of each
component 4
Driving

86 2. Instrument cluster
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Warning lights inform the driv er of malfunctions in th e indicated vehicle systems.
Warning lights * 1
(U.S.A.)
Brake system warning light
(  P. 453)
* 1
Electric power steering sys-
tem warning light
(  P. 454)
* 1
(Canada)
Brake system warning light
(  P. 453) LDA (Lane Departure
Alert) indicator (  P. 454)
* 1
(If equipped)
Charging system warning
light (  P. 453)
* 1
PCS warning light
(  P. 454)
* 1
(U.S.A.)
Malfunction indicator lamp
(  P. 453)
* 1
Slip indicator (  P. 454)
* 1
(Canada)
Malfunction indicator lamp
(  P. 453) * 1
(If equipped)
Automatic headlight level-
ing system warning light
(  P. 454)
* 1
SRS warning light
(  P. 453) Open door warning light
(  P. 454)
* 1
(U.S.A.)
ABS warning light
(  P. 453) Low fuel level warning light
(  P. 455)
* 1
(Canada)
ABS warning light
(  P. 453) Driver’s and front passen-
ger’s seat belt reminder light
(  P. 455)
(U.S.A.) Parking brake warning light
(  P. 454) * 2
Rear passenger’s seat belt
reminder lights (  P. 455)
(Canada) Parking brake warning light
(  P. 454) * 1
Master warning light
(  P. 455)

139
Operation of
each component
3
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 3-1. Key information
Keys .................................................. 140
3-2. Opening, closing and
locking the doors and
trunk
Doors ............................................... 145
Trunk .................................................. 151
Smart access system with
push-button start ...................... 156
3-3. Adjusting the seats
Front seats........................................ 161
Rear seats....................................... 164
Power easy access system/
driving position memory/
memory recall function ......... 166
Head restraints .............................. 171
3-4. Adjusting the steering
wheel and mirrors
Steering wheel ..............................174
Inside rear view mirror ..............176
Outside rear view mirrors....... 178
3-5. Opening, closing the
windows and moon roof
Power windows ........................... 182
Moon roof ...................................... 186

162 3-3. Adjusting the seats
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Fold the seatback completely for-
ward. The front seat will move forward
automatically.
■
Returning the front seat to its original position
Move the seatback backward until it locks. The front seat will return to its orig-
inal position automatically. ■
Power easy access system
The driver’s seat and steering wheel move in accordance with engine switch mode and
the driver’s seat belt condition. (  P. 166)■
When adjusting the seat ●
Take care when adjusting the seat so that the head restraint does not touch the ceiling. ●
RC350/RC300: When folding down a rear seat back, if it interferes with a front seat-
back, adjust the front seat position so that the seats no longer interfere with each other.
However, if adjusting the fron t seat position causes the correct driving posture to not be
maintained, return the rear seatba ck to its original position. (  P. 164)■
Lever-operated “Front, Fold & Return” seat ●
After the front seat is moved forward by oper ating the “Front, Fold & Return” seat lever,
if a power seat adjustin g switch or a driving position memo ry switch is pressed, the front
seat will not return to its original position even if the front seatback is moved backward
until it locks. ●
The lever-operated “Front, Fold & Return” seat will not operate in the following situa-
tions:
• The front seat belt of the seat to be operated is fastened.
• The engine switch is in IGNITION ON mode and the shift lever is in a position other
than P (driver's seat only). ●
Operation of the lever-operated “Front, Fold & Return” seat w ill stop in the following sit-
uations:
• A power seat adjusting switch or a driv ing position memory switch is pressed.
• The front seat belt of the seat which is operating is fastened.
• The engine switch is in IGNITION ON mo de and the shift lever is moved to a posi-
tion other than P (driver's seat only).■
Jam protection function
While the lever-operated “Front, Fold & Return” seat is operating, if an object is stuck
either in front of or behind the front seat, the front seat will stop and then move in the
opposite direction slightly. 2

166 3-3. Adjusting the seats
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)The seat and steering wheel
* are automatically adjusted to allow the driver to
enter and exit the vehicle easily.
When all of the following have been
performed, the driver’s seat and steer-
ing wheel
* are automatically adjusted
to a position that allows driver to enter
and exit the vehicle easily.
• The shift lever has been shifted to P.
• The engine switch has been turned
off.
• The driver’s seat belt has been unfas-
tened.
When any of the following has been perf ormed, the driver’s seat and steering
wheel
* automatically return to their original positions.
• The engine switch has been turn ed to ACCESSORY mode or IGNITION
ON mode.
• The driver’s seat belt has been fastened.
* :Power type ■
Operation of the power easy access system
When exiting the vehicle, the power easy ac cess system may not operate if the seat is
already close to the rear position, etc. ■
Customization
The seat movement amount settings of th e power easy access system can be custom-
ized. (Customizable features:  P. 569)Power easy access system/driving position mem-
ory 
/memory recall function 
 : If equippedThis feature automatically adjusts the driver’s seat, steering wheel and out-
side rear view mirrors to make enteri ng and exiting the vehicle easier or to
suit your preferences.
Power easy access system

174
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)3-4. Adjusting the steering wheel and mirrors 
Manual type
Hold the steering wheel and push
the lever down.
Adjust to the ideal position by mov-
ing the steering wheel horizontally
and vertically. After adjustment, pull the lever up to
secure the steering wheel. 
Power type
Operating the switch moves the steering wheel in the following directions:
Up
Down
Toward the driver
Away from the driverSteering wheel Adjustment procedure 1
2
1
2
3
4

1753-4. Adjusting the steering wheel and mirrors
3
Operation of each component
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)To sound the horn, press on or close to
the mark. ■
The steering wheel can be adjusted when (power type)
The engine switch is in ACCESSORY or IGNITION ON mode
* .
* : If the driver’s seat belt is fastened, the steering wheel can be adjusted regardless of
engine switch mode. ■
Automatic adjustment of the steering position (if equipped)
A desired steering position ca n be entered to memory and recalled automatically by the
driving position memory system. (  P. 166)■
Power easy access system (power type)
The steering wheel and driver’s seat move in accordance with engine switch mode and
the driver’s seat belt condition. (  P. 166)Horn
WARNING ■
Caution while driving
Do not adjust the steeri ng wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an accident, result-
ing in death or serious injury. ■
After adjusting the steering wheel (manual type)
Make sure that the steering wheel is securely locked.
Otherwise, the steering wheel may move su ddenly, possibly causing an accident, and
resulting in death or serious injury. Also, th e horn may not sound if the steering wheel is
not securely locked.

1954-1. Before driving
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury. ■
When starting the vehicle
Always keep your foot on the brake pedal while stopped with the engine running. This
prevents the vehicle from creeping. ■
When driving the vehicle ●
Do not drive if you are unfamiliar with the location of the brake and accelerator ped-
als to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake pedal will
result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to a difficulty in oper-
ating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving po sture even when moving the vehicle only
slightly. This allows you to depress th e brake and accelerator pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake pedal using
your left foot may delay re sponse in an emergency, resulting in an accident.●
Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot parts may
cause a fire if there is any flammable material nearby. ●
During normal driving, do not turn off the engine. Turning the engi ne off while driving
will not cause loss of steering or braking control, but the power assist to these systems
will be lost. This will make it more difficult to steer and brake, so you should pull over
and stop the vehicle as soon as it is safe to do so.
However, in the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way:  P. 443●
Use engine braking (downshift) to maintain a safe speed when driving down a steep
hill.
Using the brakes continuously may cause th e brakes to overheat and lose effective-
ness. (  P. 213)●
Do not adjust the positions of the steering wheel, the seat, or the inside or outside rear
view mirrors while driving.
Doing so may result in a loss of vehicle control. ●
Always check that all passengers’ arms, he ads or other parts of their body are not
outside the vehicle. ●
Do not drive in excess of the speed limit. Even if the legal speed limit permits it, do not
drive over 85 mph (140 km/h) unless your vehicle has high-speed capability tires.
Driving over 85 mph (140 km/h ) may result in tire failure , loss of control and possible
injury. Be sure to consult a tire dealer to determine whether the tires on your vehicle
are high-speed capability tires or no t before driving at such speeds.

196 4-1. Before driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury. ■
When driving on slippery road surfaces ●
Sudden braking, acceleration and steering may cause tire slippage and reduce your
ability to control the vehicle. ●
Sudden acceleration, engine braking due to shifting, or changes in engine speed
could cause the vehicle to skid. ●
After driving through a puddle , lightly depress the brake pe dal to make sure that the
brakes are functioning properly. Wet brake pads may prevent the brakes from func-
tioning properly. If the brakes on only on e side are wet and not functioning properly,
steering control may be affected. ■
When shifting the shift lever ●
Do not let the vehicle roll backward while the shift lever is in a driving position, or roll
forward while the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake and steering perfor-
mance, resulting in an accide nt or damage to the vehicle.●
Do not shift the shift lever to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle control.●
Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle control.●
Do not shift the shift lever to a driving posi tion while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle control.●
Moving the shift lever to N while the vehicle is moving will disengage the engine from
the transmission. Engine braking is not available when N is selected.●
Be careful not to shift the shift lever with the accelerator pedal depressed. Shifting the
shift lever to a gear other than P or N may lead to unexpected rapid acceleration of
the vehicle that may cause an accident and result in death or serious injury. ■
If you hear a squealing or scraping noise (brake pad wear limi t indicators) (RC350/
RC300)
Have the brake pads checked and replaced by your Lexus dealer as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
Front brakes on F SPORT models (RC3 50 [2WD]/RC300 [2WD] only): Moderate
levels of brake pad and disc wear allow enhanced front braking power. As a result, the
discs may wear more quickly than convention al brake discs. Therefore, when replacing
the brake pads, Lexus recommends that you al so have the thickness of the discs mea-
sured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or those
of the brake discs are exceeded.

200 4-1. Before driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)NOTICE ■
When driving the vehicle ●
Do not depress the accelerator and brake pedals at the same time while driving, as
this may restrain the engine output.●
Do not use the accelerator pedal or depre ss the accelerator and brake pedals at the
same time to hold the vehicle on a hill. ■
When parking the vehicle
Always set the parking brake, and shift the sh ift lever to P. Failure to do so may cause
the vehicle to move or the vehicle may acce lerate suddenly if th e accelerator pedal is
accidentally depressed. ■
Avoiding damage to vehicle parts ●
Do not turn the steering wheel fully in either direction and hold it there for an
extended period of time.
Doing so may damage the power steering motor. ●
When driving over bumps in the road, drive as slowly as possible to avoid damaging
the wheels, underside of the vehicle, etc. ●
RC300: Make sure to idle the engine immediately after high-load driving. Stop the
engine only after the turb ocharger has cooled down.
Failure to do so may cause damage to the turbocharger. ■
If you get a flat tire while driving
A flat or damaged tire may cause the following situations . Hold the steering wheel
firmly and gradually depress the brake pedal to slow down the vehicle. ●
It may be difficult to control your vehicle. ●
The vehicle will make abnormal sounds or vibrations. ●
The vehicle will lean abnormally.
Information on what to do in case of a flat tire (  P. 489, 502)■
When encountering flooded roads
Do not drive on a road that has flooded af ter heavy rain etc. Doing so may cause the
following serious damage to the vehicle: ●
Engine stalling ●
Short in electrical components ●
Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to have
your Lexus dealer check the following: ●
Brake function ●
Changes in quantity and quality of oil and fluid used for the engine, transmission,
transfer (AWD models), differential, etc. ●
Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible), and the function of all joints, bearings, etc.