2021 LEXUS IS300 engine

3647-2. Steps to take in an emergency
●The engine may not start on the first
attempt after the battery has recharged
but will start normally after the second
attempt. This is not a malfunction.
●The engine switch mode is memorized by
the vehicle. When the battery is recon-
nected, the system will return to the
mode it was in before the battery was dis-
charged. Before di sconnecting the bat-
tery, turn the engine switch off. If you are
unsure what mode the engine switch was
in before the battery discharged, be
especially careful when reconnecting the
battery.
WARNING
■Avoiding battery fires or explosions
Observe the following precautions to
prevent accidentally igniting the flamma-
ble gas that may be emitted from the bat-
tery:
●Make sure each jumper cable is con-
nected to the correct terminal and that
it is not unintentiona lly in contact with
any other than the intended terminal.
●Do not allow the other end of the
jumper cable connected to the “+” ter-
minal to come into contact with any
other parts or metal surfaces in the
area, such as brackets or unpainted
metal.
●Do not allow the + and - clamps of the
jumper cables to come into contact
with each other.
●Do not smoke, use matches, cigarette
lighters or allow open flame near the
battery.
■Battery precautions
The battery contains poisonous and cor-
rosive acidic electrolyte, while related
parts contain lead and lead compounds.
Observe the following precautions when
handling the battery:
●When working with the battery, always
wear safety glasses and take care not
to allow any battery fluids (acid) to
come into contact with skin, clothing
or the vehicle body.
●Do not lean over the battery.
●In the event that battery fluid comes
into contact with the skin or eyes,
immediately wash the affected area
with water and seek medical attention.
Place a wet sponge or cloth over the
affected area until medical attention
can be received.
●Always wash your ha nds after handling
the battery support, terminals, and
other battery-related parts.
●Do not allow children near the battery.
NOTICE
■When handling jumper cables
When connecting the jumper cables,
ensure that they do not become entan-
gled in the cooling fans or engine drive
belt.

3657-2. Steps to take in an emergency
7
When trouble arises
1Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the engine.
2 If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.
3 After the engine has cooled down
sufficiently, inspect the hoses and radiator core (radiator) for any
leaks.
Radiator
Cooling fans
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4
The coolant level is satisfactory if it
is between the “FULL” or “F” and
“LOW” or “L” lines on the reservoir.
Engine (IS350
AWD/IS350/IS300 AWD)
Reservoir cap
“FULL” line
“LOW” line
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
 The needle of the engine coolant
temperature gauge ( P.71)
enters the red zone or a loss of
engine power is experienced.
(For example, the vehicle speed
does not increase.)
 “Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” is shown on the
multi-information display.
 Steam comes out from under the
hood.
Correction procedures
A
B
A
B
C

3667-2. Steps to take in an emergency
Engine (IS300)Reservoir cap
“FULL” line
“LOW” line
Intercooler (IS300)
Reservoir cap
“F” line
“L” line
5 Add coolant if necessary.
Water can be used in an emergency if
coolant is unavailable.
Engine (IS350
AWD/IS350/IS300 AWD)
Engine (IS300)
Intercooler (IS300)
6 Start the engine and turn the air
conditioning system on to check
that the radiator cooling fans oper-
ate and to check for coolant leaks
from the radiator or hoses.
The fans operate when the air conditioning
system is turned on immediately after a
cold start. Confirm that the fans are oper-
ating by checking the fan sound and air
flow. If it is difficult to check these, turn the
air conditioning system on and off repeat-
A
B
C
A
B
C

3677-2. Steps to take in an emergency
7
When trouble arises
edly. (The fans may not operate in freezing
temperatures.)
7If the fans are not operating:
Stop the engine immediately and
contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the
nearest Lexus dealer.
8 Check if “Engine Coolant Temp
High Stop in a Safe Place See
Owner’s Manual” is shown on the
multi-information display.
If the message does not disappear:
Stop the engine and contact your
Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the
nearest Lexus dealer.
WARNING
■When inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious
injury such as burns.
●If steam is seen coming from under the
hood, do not open the hood until the
steam has subsided. The engine com-
partment may be very hot.
●Keep hands and clothing (especially a
tie, a scarf or a muffler) away from the
fans and belts.
Failure to do so may cause the hands
or clothing to be caught, resulting in
serious injury.
●IS350 AWD/IS350/IS300 AWD:
Do not loosen the coolant inlet cap or
coolant reservoir cap while the engine
and radiator are hot. (The coolant inlet
cap is located under the engine cover.)
High temperature steam or coolant
could spray out.
●IS300: Do not loosen the coolant inlet
cap, coolant reservoir cap, or inter-
cooler reservoir cap while the engine
and radiator are hot. High tempera-
ture steam or coolant could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has
cooled down sufficiently. Adding cool
coolant to a hot engine too quickly can
cause damage to the engine.

3687-2. Steps to take in an emergency
1Stop the engine. Set the parking
brake and shift the shift lever to P.
2 Remove the mud, snow or sand
from around the rear wheels.
3 Place wood, stones or some other
material under the rear wheels to
help provide traction.
4 Restart the engine.
5 Shift the shift lever to D or R and
release the parking brake. Then,
while exercising caution, depress
the accelerator pedal.
■When it is difficult to free the vehicle
Press the switch to turn off TRAC.
NOTICE
■To prevent damage to the cooling sys-
tem
Observe the following precautions:
●Avoid contaminating the coolant with
foreign matter (such as sand or dust
etc.).
●Do not use any coolant additive.
If the vehicle becomes stuck
Carry out the following proce-
dures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Recovering procedure

3728-1. Specifications
8-1.Specifications
*1: Unladen vehicles
*2:2WD models
*3:AWD models
*4: Vehicles with 235/45R18 or 235/40R19 rear tires
*5: Vehicles with 265/35R19 rear tires
■Vehicle identification number
The vehicle identification number
(VIN) is the legal identifier for your
vehicle. This is the primary identifica-
tion number for your Lexus. It is used in
registering the ownership of your vehi-
cle.
This number is stamped on the top left
of the instrument panel and in the engine compartment.
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
Overall length185.4 in. (4710 mm)
Overall width72.4 in. (1840 mm)
Overall height*156.5 in. (1435 mm)*2
56.7 in. (1440 mm)*3
Wheelbase110.2 in. (2800 mm)
Tread*1
Front62.2 in. (1580 mm)
Rear63.0 in. (1600 mm)*4
61.8 in. (1570 mm)*5
Vehicle capacity weight
(Occupants + luggage)825 lb. (375 kg)
Seating capacity
Seating capacity5 (Front 2, Rear 3)
Vehicle identification

3738-1. Specifications
8
Vehicle specifications
IS350 AWD/IS350/IS300 AWD
IS300
This number is also on the Certification
Label.
■Engine number
The engine number is stamped on the
engine block as shown.
IS350 AWD/IS350/IS300 AWD
IS300
IS350 AWD/IS350/IS300 AWD
Engine
Model3.5 L 6-cylinder (2GR-FKS) engine
Type6-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70  3.27 in. (94.0  83.0 mm)
Displacement210.9 cu. in. (3456 cm3)

3748-1. Specifications
IS300
■Oil capacity (Drain and refill [Ref-
erence
*])
Valve clearanceAutomatic adjustment
Drive belt tensionAutomatic adjustment
Model2.0 L 4-cylinder (8AR-FTS) engine
Type4-cylinder in line, 4-cycle, gasoline (with tur-
bocharger)
Bore and stroke3.39  3.39 in. (86.0  86.0 mm)
Displacement121.9 cu. in. (1998 cm3)
Valve clearanceAutomatic adjustment
Drive belt tensionAutomatic adjustment
Fuel
Fuel typeUnleaded gasoline only
Octane Rating91 (Research Octane Number 96) or higher
Fuel tank capacity
(Reference)17.5 gal. (66.5 L, 14.6 Imp. gal.)
Lubrication system
With filter
IS350 (2WD)
6.0 qt. (5.7 L, 5.0 Imp. qt.)
IS350 AWD/IS300
AWD (AWD)
6.8 qt. (6.4 L, 5.6 Imp. qt.)
IS300
4.9 qt. (4.6 L, 4.0 Imp. qt.)
Without fil- ter
IS350 (2WD)
5.8 qt. (5.5 L, 4.8 Imp. qt.)
IS350 AWD/IS300
AWD (AWD)
6.3 qt. (6.0 L, 5.3 Imp. qt.)
IS300
4.5 qt. (4.3 L, 3.8 Imp. qt.)