2014 Lexus IS250 fuel

4758-2. Steps to take in an emergency
8
When trouble arises
IS250_EE(OM53C51E)
Follow the procedure below to restart the engine after the system is activated.
Turn the engine switch to ACCESSORY mode or turn it off.
Restart the engine.
Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or when an airbag
inflates upon collision, the fuel pump shut off system stops the supply of fuel to
the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been damaged and
is in need of repair. Do not restart the engine.
1
2

4788-2. Steps to take in an emergency
IS250_EE(OM53C51E)
*1: Parking brake engaged warning buzzer:
→P. 4 8 5
*2: Open door warning buzzer:
→P. 4 8 4
Warning lightWarning light/Details/Actions
Open door warning light (warning buzzer)*2
Indicates that a door or the trunk is not fully closed
→Check that all the doors and the trunk are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 10 L (2.6 gal., 2.2 Imp.
gal.) or less
→Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)
*3
Warns the driver and/or front passenger to fasten their seat belts
→Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fastened to make the warning light
(warning buzzer) turn off.
Rear passengers’ seat belt reminder lights (warning buzzer)*3
Warns the rear passengers to fasten their seat belts
→Fasten the seat belt.
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warning system has detected a malfunc-
tion.
→P. 4 8 2
(If equipped)
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes (→P. 4 7 9 )
• Flat tire (→P. 4 9 6 , 5 0 7 )
→Adjust the tire inflation pressure to the specified level.
The light will turn off after a few minutes. In case the light does
not turn off even if the tire inflation pressure is adjusted, have the
system checked by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system
→Have the system checked by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.

4798-2. Steps to take in an emergency
8
When trouble arises
IS250_EE(OM53C51E)
*3: Seat belt warning buzzer:
The seat belt warning buzzer sounds to alert the driver, front passenger and rear pas-
sengers that his or her seat belt is not fastened. The buzzer sounds for 30 seconds
after the vehicle reaches a speed of 20 km/h (12 mph). Then, if the seat belt is still
unfastened, the buzzer will sound in a different tone for 90 more seconds.
■Passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on a passenger seat, the 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 a cushion is placed on the seat, the sensor may not detect a passenger, and the warn-
ing light may not operate properly.
■If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes completely empty.
If the fuel tank is empty, refuel the vehicle immediately. The malfunction indicator lamp
will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional as soon as possible.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient of the voltage temporarily drops, the
electric power steering system warning light may come on and the warning buzzer may
sound.
■When the tire pressure warning light comes on (if equipped)
Carry out the following procedure after the tire temperature has lowered sufficiently.
●Check the tire inflation pressure and adjust to the appropriate level.
●If the warning light does not go out even after several minutes, check that the tire infla-
tion pressure is at the specified level and carry out initialization.
The warning light may come on again if the above operations are conducted without first
allowing the tire temperature to lower sufficiently.
■The tire pressure warning light may come on due to natural causes (if equipped)
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caused 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 compact spare tire is not equipped with a tire pressure warning valve and transmit-
ter. 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 warning system may not function properly (if
equipped)
→P. 4 3 1

4898-2. Steps to take in an emergency
8
When trouble arises
IS250_EE(OM53C51E)
Indicates that the accelerator and brake pedal are being
depressed simultaneously
→Release the accelerator or brake pedal.
Indicates that the washer fluid level is low
→Add washer fluid.
Indicates that remaining fuel is approximately 10 L (2.6
gal., 2.2 Imp. gal.) or less
→Refuel the vehicle.
Indicates that the TRC (Traction Control) system has
been deactivated
→Tu r n t h e T R C o n . (→P. 2 6 7 )
(If equipped)
Indicates that the fuel injectors require maintenance
soon
→Have any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional
add injector cleaner to the fuel tank and reset the
message as necessary.
(If equipped)
Indicates that the fuel injectors require maintenance
→Have any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional
add injector cleaner to the fuel tank and reset the
message.
(If equipped)
Indicates that the Automatic High Beam switch is
pressed while the headlights are in low beam.
→Turn the high beam on and press the Automatic
High Beam switch again.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-crash brake system oper-
ation is stopped
→Tu r n t h e V S C o n . (→P. 2 6 7 )
Wa r n i n g m e s s a g eDetails/Actions
(Flashes)

5218-2. Steps to take in an emergency
8
When trouble arises
IS250_EE(OM53C51E)
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●The engine may be flooded.
Try to restart the engine again following correct starting procedures.
(→P. 1 9 2 )
●There may be a malfunction in the engine immobilizer system.
(→P. 77)
One of the following may be the cause of the problem:
●The battery terminal connections may be loose or corroded.
●The battery may be discharged. (→P. 5 2 7 )
The engine starting system may be malfunctioning due to an electrical problem
such as electronic key battery depletion or a blown fuse. However, an interim
measure is available to start the engine. (→P. 522)
If the engine will not start
If the engine will not start even though correct starting procedures are being
followed (→P. 192), consider each of the following points:
The engine will not start even though the starter motor operates nor-
mally.
The starter motor turns over slowly, the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
The starter motor does not turn over

537
9Vehicle specifications
IS250_EE(OM53C51E)
9-1. Specifications
Maintenance data
(fuel, oil level, etc.) ..................538
Fuel information.......................... 549
9-2. Customization
Customizable features ............. 551
9-3. Initialization
Items to initialize ...........................561

538
IS250_EE(OM53C51E)9-1. Specifications
*1:Unladen vehicle
*2: Vehicles with 255/35R18 tires
*3: Vehicles with a towing package
Maintenance data (fuel, oil level, etc.)
Dimensions and weights
Overall length 4665 mm (183.7 in.)
Overall width 1810 mm (71.3 in.)
Overall height*11430 mm (56.3 in.)
Wheelbase 2800 mm (110.2 in.)
Tr e a d*1Front 1535 mm (60.4 in.)
Rear1550 mm (61.0 in.)
1540 mm (60.6 in.)*2
Gross vehicle mass*32090 kg (4608 lb.)
Maximum permissi-
ble axle capacity
*3
Front 1090 kg (2403 lb.)
Rear 1200 kg (2646 lb.)
Drawbar load*375 kg (165 lb.)
Towing capacity*3With brake 1500 kg (3307 lb.)
Witho ut brake 750 kg (1653 lb.)

5409-1. Specifications
IS250_EE(OM53C51E)
Engine
Model4GR-FSE
Ty p e6-cylinder V type, 4-cycle, gasoline
Bore and stroke83.0 × 77.0 mm (3.27 × 3.03 in.)
Displacement2500 cm3 (152.6 cu. in.)
Va l v e c l e a r a n c e
(engine cold)Automatic adjustment
Drive belt tensionAutomatic adjustment
Fuel
Fuel type
EU area:
Unleaded gasoline conforming to European standard
EN228 only
Except EU area:
Unleaded gasoline only
Research Octane Number95 or higher
Fuel tank capacity
(Reference)66 L (17.4 gal., 14.5 Imp. gal.)