2017 Lexus GS300h Owner's Manual

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4
4-4. Refueling
Driving
GS450h_300h_OM_OM30F92E_(EE)
Opening the fuel tank cap
●Turn the power switch off and ensure that all the doors and windows are
closed.
● Confirm the type of fuel.
■Fuel types P. 559
■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.
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 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 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.

2584-4. Refueling
GS450h_300h_OM_OM30F92E_(EE)
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.

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4-4. Refueling
4
Driving
GS450h_300h_OM_OM30F92E_(EE) 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
remove it and put it into the holder
on the fuel filler door.
■When the fuel filler door cannot be opened by pressing the rearward of the fuel filler
door
Opening the fuel tank cap
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Remove the cover inside the trunk and pull the lever.

2604-4. Refueling
GS450h_300h_OM_OM30F92E_(EE) 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 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. 143)
●When the fuel filler door is closed after the vehicle’s doors are locked
Closing the fuel tank cap
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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.

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4
4-5. Using the driving support systems
Driving
GS450h_300h_OM_OM30F92E_(EE)
Lexus Safety System+
◆PCS (Pre-Crash Safety system) 
P. 270
◆LKA (Lane-Keeping Assist) P. 282
◆AHS (Adaptive High-beam System) 
 P. 241
◆Automatic High Beam 
 P. 246
◆RSA (Road Sign Assist) P. 291
◆Dynamic radar cruise control with full-speed range P. 296
: If equipped
The Lexus Safety System+ consists of the following drive assist systems and
contributes to a safe and comfortable driving experience:
WARNING
■Lexus Safety System+
The Lexus Safety System+ is designed to operate under the assumption that the driver
will drive safely, and is designed to help reduce the impact to the occupants and the
vehicle in the case of a collision or assist the driver in normal driving conditions.
As there is a limit to the degree of reco gnition accuracy and control performance that
this system can provide, do no t overly rely on this system. The driver is always responsi-
ble for paying attention to the vehicle’s surroundings and driving safely.

2624-5. Using the driving support systems
GS450h_300h_OM_OM30F92E_(EE) The pre-crash safety system is equipped with a sophisticated computer that will
record certain data, such as:

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4-5. Using the driving support systems
4
Driving
GS450h_300h_OM_OM30F92E_(EE) Two types of sensors, located behind the front grille and windshield, detect infor-
mation necessary to operate the drive assist systems.
Radar sensor
Camera sensor
Sensors
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2

2644-5. Using the driving support systems
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■To avoid malfunction of the radar sensor
Observe the following precautions.
Otherwise, the radar sensor may not operat e properly, possibly leading to an accident
resulting in death or serious injury.
●Keep the radar sensor and front grille emblem clean at all times.
●Do not attach accessories, stickers (including transparent stickers) or other items to
the radar sensor, front grille emblem or surrounding area.
●Do not subject the radar sensor or surrounding area to a strong impact.
If the radar sensor, front grille, or front bump er has been subjected to a strong impact,
have the vehicle inspected by your any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
●Do not disassemble the radar sensor.
●Do not modify or paint the radar sensor, front grille emblem or surrounding area.
●If the radar sensor, front grille, or front bu mper needs to be removed and installed, or
replaced, contact your any authorized Lexus retailer or Lexus authorized repairer, or
any reliable repairer.
Radar sensor
Front grille emblem
If the front of the radar sensor or the front or
back of the front grille emblem is dirty or
covered with water droplets, snow, etc., clean
it.
Clean the radar sensor and front grille
emblem with a soft cloth so you do not mark
or damage them.1
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