fuel cap LEXUS RX350 2016 Owners Manual

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RX350_U_OM48E90U 64-1. Before driving
Driving the vehicle ......................192
Cargo and luggage...................200
Vehicle load limits ...................... 204
Trailer towing (vehicles with
towing package) ..................... 205
Trailer towing (vehicles
without towing package) ...... 218
Dinghy towing ...............................219
4-2. Driving procedures
Engine (ign ition) switch ........... 220
Automatic transmission
(vehicles without paddle
shift switches) ........................... 225
Automatic transmission
(vehicles with paddle
shift switches) ........................... 229
Turn signal lever .......................... 234
Parking brake .............................. 235
Brake Hold ................................... 239
4-3. Operating the lights and
wipers
Headlight switch .......................... 241
Automatic High Beam..............245
Fog light switch ............................249
Windshield wipers and
washer ......................................... 250
Rear window wiper and
washer ......................................... 256 4-4. Refueling
Opening the fuel tank
cap ................................................ 258
4-5. Using the driving
support systems
Lexus Safety System+ ...............262
PCS
(Pre-Collision System) ..........270
LKA
(Lane-Keeping Assist) .......... 283
LDA (Lane Departure
Alert with steering
control)........................................ 293
Dynamic radar cruise
control with full-speed
range ............................................ 302
Dynamic radar cruise
control ...........................................314
Cruise control ............................. 326
Intuitive parking assist .............. 330
Lexus parking assist
monitor........................................ 339
BSM
(Blind Spot Monitor) ............. 355
• BSM function......................... 359
• RCTA function ...................... 363
Driving mode select
switch ........................................... 369
All-wheel drive lock switch.....373
Driving assist systems ............... 374
4-6. Driving tips
Winter driving tips .....................380
Utility vehicle pr ecautions...... 3844
Driving

15Pictorial index
RX350_U_OM48E90U Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 250 Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 380
To prevent freezing (windshield wiper de-icer)
* . . . . . . . . . . . . . . . . . . . . . . . P. 500
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 558
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 258Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 260
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 676
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 584Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 680
Winter tires/tire chain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 3 80
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . P. 584
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 646
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 572Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 572
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 676
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 668
Headlights/parking lights/daytime running ligh ts . . . . . . . . . . . . . . . . . . . P. 241
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 234
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 249
Cornering lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 242
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 241
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 24 1
Back-up lights Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 24 14
5
6
7
Light bulbs of the exte rior lights for driving
(Replacing method: P. 610, Watts: P. 682)
* : If equipped8
9
10
11
12
13
14
15

191
4 Driving
RX350_U_OM48E90U 4-3. Operating the lights and
wipers
Headlight switch ...........................241
Automatic High Beam ............. 245
Fog light switch............................ 249
Windshield wipers and
washer......................................... 250
Rear window wiper and
washer..........................................256
4-4. Refueling
Opening the fuel tank
cap ................................................ 258
4-5. Using the driving
support systems
Lexus Safety System+............... 262
PCS
(Pre-Collision System) .......... 270
LKA
(Lane-Keeping Assist) ..........283
LDA (Lane Departure
Alert with steering
control) ........................................ 293 Dynamic radar cruise
control with full-speed
range ............................................302
Dynamic radar cruise
control .......................................... 314
Cruise control ............................. 326
Intuitive parking assist ..............330
Lexus parking assist
monitor ........................................ 339
BSM
(Blind Spot Moni tor).............. 355
• BSM function ......................... 359
• RCTA function ...................... 363
Driving mode select
switch ........................................... 369
All-wheel drive lock
switch ........................................... 373
Driving assist systems................ 374
4-6. Driving tips
Winter driving tips .................... 380
Utility vehicle
precautions ................................384

258
RX350_U_OM48E90U 4-4. Refueling
●
Close all the doors and windows, and turn the engine switch off. ●
Confirm the type of fuel. ■
Fuel types
 P. 6 8 3 ■
Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that only accom-
modates the special nozzle on unleaded fuel pumps.
Opening the fuel tank cap Perform the following steps to open the fuel tank cap:
Before refueling the vehicle

2594-4. Refueling
4
Driving
RX350_U_OM48E90U WA R N I N G ■
When refueling the vehicle
Observe the following precautions while refu eling the vehicle. Failure to do so may
result in death or serious injury. ●
After exiting the vehicle and before openin g 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 th e fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fuel tank cap is loosened. Wait until the
sound cannot be heard before fully removing the cap. In hot weather, pressurized fuel
may spray out of 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 person 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.
NOTICE ■
Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control system to
operate abnormally or damaging fuel system components or the vehicle’s painted sur-
face.

260 4-4. Refueling
RX350_U_OM48E90U With the doors unlocked, press the
center of the rear edge of the fuel
filler door. Push inward 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. ■
When the fuel filler door cannot be openedOpening the fuel tank cap 1
2
Remove the cover inside the luggage compart-
ment and pull the lever to open the fuel filler
door if it cannot be opened by pressing the rear
edge of the fuel filler door with the doors
unlocked.

2614-4. Refueling
4
Driving
RX350_U_OM48E90U 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. When you lock the doors, the fuel filler
door will lock also. ■
Fuel filler door lock condition
The fuel filler door may not be locked even wh en the vehicle’s doors are locked in the fol-
lowing conditions: ●
When operating the door lock button inside the vehicle ●
When the automatic door locking system is operated (  P. 1 2 7 )●
When the fuel filler door is closed after the vehicle’s doors are lockedClosing the fuel tank cap 1
2
WA R N I N G ■
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.

5036-2. Using the air conditioning system and defogger
6
Interior features
RX350_U_OM48E90U ■
Outside/recirculated air mode ●
When driving on dusty roads such as tunnels or in heavy traffic, set the outside/recircu-
lated air mode button to the recirculated ai r mode. This is effective in preventing out-
side air from entering the vehicle interi or. During cooling operation, setting the
recirculated air mode will also cool the vehicle interior effectively. ●
Outside/recirculated air mode may automa tically switch depending on the tempera-
ture setting or the inside temperature. ■
When the outside temperature is low
The dehumidification function may not operate even when “A/C” is selected. ■
Operation of the air conditioning system in Eco drive mode ●
In the Eco drive mode, the air conditioning sy stem is controlled as follows to prioritize
fuel efficiency
• Engine speed and compressor operation controlled to restrict heating/cooling
capacity
• Fan speed restricted when automatic mode is selected ●
To improve air conditioning performa nce, perform the following operations
• Adjust the fan speed
• Turn off Eco drive mode ■
Ventilation and air conditioning odors ●
To let fresh air in, set the air conditio ning 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. 5 9 8 ■
Customization
Some functions can be customized. (  P. 6 9 9 )

5697-2. Maintenance
7
Maintenance and care
RX350_U_OM48E90U The OBD system determines that a problem exists somewhere in the emission
control system. Your vehicle may not pa ss 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 prepare the vehicle for re-testing.Emission inspection an d maintenance (I/M)
programs Some states have vehicle emission inspection 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 test in the following situations:
When the malfunction indicator lamp s till remains on af ter several driv-
ing trips
If your vehicle does not pass the I/M test

594 7-3. Do-it-yourself maintenance
RX350_U_OM48E90U 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 drive train
If a tire needs frequent inflating, ha ve it checked by your Lexus dealer.Inspection and adjustment procedure 1
2
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2
3
4
5
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