2015 Lexus GS350 fuel cap

3
1
8 7
6
5
4
3
2
GS350_OM_OM30E15U_(U)
9
4-1. Before drivingDriving the vehicle ..................... 160
Cargo and luggage...................... 171
Vehicle load limits .........................174
Trailer towing ................................. 175
Dinghy towing ............................... 176
4-2. Driving procedures Engine (ign ition) switch ............. 177
Automatic transmission ........... 184
Turn signal lever ........................... 190
Parking brake ................................192
Horn ..................................................195
4-3. Operating the lights and wipers
Headlight switch ..........................196
Fog light switch ............................ 201
Windshield wipers and washer ................................ 202
Headlight cleaner switch........ 209
4-4. Refueling Opening the fuel tank cap ...... 210 4-5. Using the driving support
systems
Cruise control ...............................215
Dynamic radar cruise control..............................219
LKA (Lane-Keeping Assist) .......... 234
Driving mode select switch ....244
Driving assist systems ...............249
Hill-start assist control ..............257
PCS (Pre-Collision System) ......... 259
BSM (Blind Spot Monitor) ............. 268
• The Blind Spot Monitor function ..................................... 272
• The Rear Cross Traffic Alert function .........................275
Lexus night view ..........................278
4-6. Driving tips Winter driving tips ..................... 284
4Driving

15Pictorial index
GS350_OM_OM30E15U_(U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 284
To prevent freezing (windshield wiper de-icer)
* . . . . . . . . . . . . . . . . . . . . P. 327
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 378
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 210
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 538
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 410
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 543
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 284
Checking/rotation/tire pressure warning system. . . . . . . . . . . . . . . . . . . . .P. 410
Coping with flat tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 504
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 394
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 394
Engine compartment cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 398
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 5 3 8
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 529
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 487
Headlights/parking lights/daytime running ligh ts . . . . . . . . . . . . . . . . . . . P. 196
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 201
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 190
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
Stop lights
Hill-start assist control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 257
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 19 6
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 184
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 19 6
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 444, Watts: P. 545)
*: If equipped
8
9
10
11
12
13
14
15

159
GS350_OM_OM30E15U_(U)
Driving4
4-1. Before driving Driving the vehicle ...................... 160
Cargo and luggage ...................... 171
Vehicle load limits ........................ 174
Trailer towing ................................. 175
Dinghy towing................................ 176
4-2. Driving procedures Engine (ignition) switch .............177
Automatic transmission ............ 184
Turn signal lever ........................... 190
Parking brake ................................ 192
Horn.................................................. 195
4-3. Operating the lights and wipers
Headlight switch .......................... 196
Fog light switch............................. 201
Windshield wipers and washer .................................202
Headlight cleaner switch ....... 209
4-4. Refueling Opening the fuel tank cap....... 210 4-5. Using the driving support
systems
Cruise control .............................. 215
Dynamic radar cruise control ............................. 219
LKA (Lane-Keeping Assist) .......... 234
Driving mode select switch ... 244
Driving assist systems............... 249
Hill-start assist control ............. 257
PCS (Pre-Collision System).......... 259
BSM (Blind Spot Moni tor).............. 268
• The Blind Spot Monitor function .....................................272
• The Rear Cross Traffic Alert function......................... 275
Lexus night view ......................... 278
4-6. Driving tips Winter driving tips ..................... 284

210
GS350_OM_OM30E15U_(U)
4-4. Refueling
Opening the fuel tank cap
●Close all the doors and windows, and turn the engine switch off.
●Confirm the type of fuel.
■Fuel types
Unleaded gasoline (Octane rating 91 [Research Octane Number 96] or higher)
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle

GS350_OM_OM30E15U_(U)
2114-4. Refueling
4
Driving
CAUTION
■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 from 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 fuel tank cap is loosened. Wait until
the sound cannot be heard before fully removing the cap. In hot weather, pressur-
ized 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 that 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 syst em components or the vehicle’s painted
surface.

212
GS350_OM_OM30E15U_(U)
4-4. Refueling
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 to
open.
Hang the fuel tank cap on the
back of the fuel filler door.
Opening the fuel tank cap
1
2
3

214
GS350_OM_OM30E15U_(U)
4-4. 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 lock also.
■Fuel filler door lock condition
The fuel filler door may not be locked even when the vehicle’s doors are locked in the
following conditions:
●When operating the door lock button inside the vehicle
●When the automatic door locking system is operated (P. 125)
●When the fuel filler door is closed after the vehicle’s doors are locked
Closing the fuel tank cap
1
2
CAUTION
■When replacing the fuel tank cap
Do not use anything but a genuine Lexus fu el tank cap designed for your vehicle.
Doing so may cause a fire or other incide nt which may result in death or serious
injury.

GS350_OM_OM30E15U_(U)
3195-2. Using the air conditioning system and defogger
5
Interior features
■Micro dust and pollen filter
●In order to prevent the windshield from fogging up when the outside air is cold, the
following may occur:
• Outside air mode does not switch to (recirculated air) mode.
• The dehumidification function operates.
• The operation cancels after approximately 1 minute.
●In rainy weather, the windows may fog up. Press .
●In extremely humid weather, the windows may fog up.
●The pollens are filtered out even if the mi cro dust and pollen filter is turned off.
■Operation of the air conditioning system in Eco drive mode
In the Eco drive mode, the air conditioning system is controlled as follows to priori-
tize fuel efficiency:
●Engine speed and compressor operation co ntrolled to restrict heating/cooling
capacity
●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 S-FLOW mode operates
If air flows to the driver’s seat only, the temperature setting for the front passenger’s
seat is not displayed.
■When the outside temperature falls to nearly 32 F (0C)
The dehumidification function may not operate even when “A/C” on the option con-
trol screen is selected.