fuel cap LEXUS RC350 2017 Owners Manual

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7 5 4
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3-1. Key informationKeys ...................................................136
3-2. Opening, closing and locking the doors and trunk
Doors ................................................. 141
Trunk ................................................. 147
Smart access system with push-button start.......................152
3-3. Adjusting the seats Front seats ......................................164
Rear seats ....................................... 167
Driving position memory ..........169
Head restraints ............................. 173
3-4. Adjusting the steering wheel and mirrors
Steering wheel .............................. 176
Inside rear view mirror ..............178
Outside rear view mirrors ...... 180
3-5. Opening, closing the windows and moon roof
Power windows ........................... 183
Moon roof .......................................187 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 ......................... 220
Parking brake ................................ 221
ASC (Active Sound Control) (RC350/RC300/
RC200t) .................................... 222
ASC (Active Sound Control) (RC F) .......................................... 223
4-3. Operating the lights and wipers
Headlight switch ........................ 224
Automatic High Beam..............227
Fog light switch ........................... 232
Windshield wipers and washer ......................................... 233
4-4. Refueling Opening the fuel tank cap ....... 241
3Operation of each
component4Driving

15Pictorial index
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 141
Locking/unlocking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 141
Opening/closing the side window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 183
Locking/unlocking by using the me chanical key . . . . . . . . . . . . . . . . . . . . . . . P. 622
Warning lights/warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 566, 573
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 331
To prevent freezing (windshield wiper de-icer)*. . . . . . . . . . . . . . . . . . . . . . . P. 440
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 482
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 241
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 644
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 517
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 652
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 3 31
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . P. 517
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 592, 606
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 497
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 497
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 644
Coping with overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 630
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 573
Headlights/parking lights/daytime running lights/
turn signal lights /side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . P. 220, 224
Front fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 232
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4
5
Light bulbs of the exte rior lights for driving
(Replacing method: P. 543, Watts: P. 657)
*: If equipped
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7

191
Driving4
4-1. Before drivingDriving 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..........................220
Parking brake ............................... 221
ASC (Active Sound Control)
(RC350/RC300/
RC200t) .................................... 222
ASC (Active Sound Control) (RC F)...........................................223
4-3. Operating the lights and wipers
Headlight switch ......................... 224
Automatic High Beam ............. 227
Fog light switch ...........................232
Windshield wipers and washer..........................................233
4-4. Refueling Opening the fuel tank cap....... 241 4-5. Using the driving support
systems
Cruise control ............................. 245
Dynamic radar cruise control ......................................... 249
LDA (Lane Departure Alert) ........ 263
Intuitive parking assist .............. 269
Lexus parking assist monitor ........................................ 279
Driving mode select switch ........................................... 294
Driving assist systems ..............298
PCS (Pre-Collision System) .........306
BSM (Blind Spot Moni tor)............... 313
• BSM function ...........................317
• RCTA function....................... 321
Active rear wing ......................... 326
TVD (Torque Vectoring Differential) ................................ 329
4-6. Driving tips Winter driving tips ...................... 331

241
4
Driving
4-4. Refueling
●Close both side doors and windows, and turn the engine switch off.
●Confirm the type of fuel.
■Fuel types
→P. 658
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehi cle has a fuel tank opening that only accom-
modates the specia l nozzle on unleaded fuel pumps.
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
WARNING
■When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before opening the fuel door, touch an unpainted metal
surface to discharge any static electricity. It is important to discharge static electricity
before refueling because sparks resulting fr om static electricity can cause fuel vapors
to ignite while refueling.
●Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fu el tank cap is loosened. Wait until the
sound cannot be heard before fully removing the cap. In hot weather, pressurized fuel
may spray out the filler neck and cause injury.
●Do not allow anyone that has not discharged static electricity from their body to come
close to an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances th at are harmful if inhaled.
●Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.
●Do not return to the vehicle or touch any pe rson or object that is statically charged.
This may cause static electricity to build up, resulting in a possible ignition hazard.
■When refueling
Observe the following precautions to prevent fuel overflowing from the fuel tank:
●Securely insert the fuel nozzle into the fuel filler neck.
●Stop filling the tank after the fuel nozzle automatically clicks off.
●Do not top off the fuel tank.

2434-4. Refueling
4
Driving
With the doors unlocked, press the
center of the rear edge of the fuel
filler door.
Push until you hear a click and take your
hand away to slightly open the fuel filler
door. Then open the door fully by hand.
Turn the fuel tank cap slowly and
remove it, then put it into the holder
on the fuel filler door.
■If the fuel filler door cannot be opened
Opening the fuel tank cap
1
2
Remove the cover inside the trunk and pull the
lever to open the fuel fi ller door if it cannot be
opened by pressing the rear edge of the fuel
filler door with the doors unlocked.

2444-4. Refueling
After refueling, turn the fuel tank cap
until you hear a click. Once the cap
is released, it will turn slightly in the
opposite direction.
Close the fuel filler door, and press
the center of the rear edge of the
fuel filler door until you hear a click.
When you lock the doors, the fuel filler
door will also lock.
■When closing the fuel filler door
Do not lock the doors before closing the fuel filler door, as the fuel filler door cannot be
closed if the doors are locked. If the doors are locked and the fuel filler door cannot be
closed, unlock the doors and then close the fuel filler door.
■Fuel filler door lock condition
The fuel filler door may not be locked even when the vehicle’ s doors are locked in the fol-
lowing situations:
●When operating the door lock button inside the vehicle
●When the automatic door lock ing system is operated (→P. 677)
Closing the fuel tank cap
1
2
WARNING
■When replacing the fuel tank cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle. Doing
so may cause a fire or other incident whic h may result in death or serious injury.

4436-1. Using the air conditioning system
6
Interior features
■Automatic mode for air intake control
In automatic mode, the system detects ex haust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
When the dehumidification function is off, and the fan is operating, turning automatic
mode on will activate the dehumidification function.
■Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning system is controlled as follows to prioritize fuel
efficiency:
●Engine speed and compressor operation controlled to restrict heating/cooling capac-
ity
●Fan speed restricted when automatic mode is selected
To improve air conditioning performanc e, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode
■When the outside temperature falls to nearly 32 °F (0 °C)
The dehumidification function may not oper ate even when is pressed or “A/C” is
selected.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
●During use, various odors from inside and outside the vehicle may enter into and accu-
mulate in the air conditioning system. This may then cause odor to be emitted from the
vents.
●To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode prior
to turning the vehicle off.
• The start timing of the blower may be dela yed for a short period of time immediately
after the air conditioning system is started in automatic mode.
■Air conditioning filter
→P. 536
■Customization
Settings (e.g. A/C Auto switch operation) can be changed.
(Customizable features →P. 681)

4947-2. Maintenance
The OBD system determines that a problem exists somewhere in the emission
control system. Your vehicle may not pass the I/M test and may need to be
repaired. Contact your Lexus dealer to service the vehicle.
●When the battery is disconnected or discharged
Readiness codes that are set during ordinary driving are erased.
Also, depending on your driving habits , the readiness codes may not be com-
pletely set.
●When the fuel tank cap is loose
The malfunction indicator lamp comes on indicating a temporary malfunction
and your vehicle may not pass the I/M test.
The error code in the OBD system will not be cleared unless the vehicle \
is driven
40 or more times.
Contact your Lexus dealer to pr epare the vehicle for re-testing.
Emission inspection and maintenance (I/M)
programs
Some states have vehicle emission in spection programs which include OBD
(On Board Diagnostics) checks. The OBD system monitors the operation of
the emission control system.
If the malfunction indicator lamp comes on
Your vehicle may not pass the I/M te st in the following situations:
When the malfunction indicator lamp still remains on after several driv-
ing trips
If your vehicle does not pass the I/M test

5327-3. Do-it-yourself maintenance
Tire valve
Tire pressure gauge
Remove the tire valve cap.
Press the tip of the tire pressure gauge onto the tire valve.
Read the pressure using the gauge gradations.
If the tire inflation pressure is not at the recommended level, adjust the pres-
sure.
If you add too much air, press the center of the valve to deflate.
After completing the tire inflation pressure measurement and adjustment,
apply soapy water to the valve and check for leakage.
Put the tire valve cap back on.
■Tire inflation pressure check interval
You should check tire inflation pressure ev ery two weeks, or at least once a month.
Do not forget to check the spare.
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel economy
●Reduced driving comfort and poor handling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drivetrain
If a tire needs frequent inflating, ha ve it checked by your Lexus dealer.
Inspection and adjustment procedure
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2
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3
4
5
6

5688-2. Steps to take in an emergency
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (door), side impact sensors (front), side impact sensors (rear), driver’s
seat position sensor, driver’s seat belt buckle switch, front passenger occupant classifica-
tion system, “AIR BAG ON” indicator light, “A IR BAG OFF” indicator light, front passen-
ger’s seat belt buckle switch, seat belt pretensioners, airbags, interconnecting wiring and
power sources. (→ P. 41)
■Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passenger
is not sitting in the seat.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fu el tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficien t or the voltage temporarily drops, the
electric power steering system warning li ght may come on and the warning buzzer may
sound.
■When the tire pressure warning light comes on
Check the tire inflation pressu re and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not tu rn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caus ed by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with the spare tire (if equipped)
The spare tire is not equipped with a tire pr essure warning valve and transmitter. If a tire
goes flat, the tire pressure warning light will not turn off even though the flat tire has been
replaced with the spare tire.
■Conditions that the tire pressure wa rning system may not function properly
→ P. 522
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mo de, have it checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.