Lexus IS300h 2015 Owner's Manual

5718-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D56E)
●The needle of the engine coolant temperature gauge (→P. 109) enters the
red zone or a loss of hybrid system power is experienced. (For example, the
vehicle speed does not increase.)
●“Hybrid System Overheat” is shown on the multi-information display.
●Steam comes out from under the hood.
■If the needle of the engine coolant temperature gauge enters the red zone
Stop the vehicle in a safe place and turn off the air conditioning system, and
then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently, inspect
the hoses and radiator core (radi-
ator) for any leaks. Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact any autho-
rized Lexus dealer or repairer, or
another duly qualified and
equipped professional.
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2
4
1
2
3

5728-2. Steps to take in an emergency
IS300h_EE(OM53D56E)
Add coolant if necessary.
Water can be used in an emergency
if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to check
that the radiator cooling fans operate 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 operating by checking the fan sound and air
flow. If it is difficult to check these, turn the air conditioning system on and off
repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immediately and contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
If the fans are operating:
Have the vehicle inspected at the nearest authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
■If “Hybrid System Overheat” is shown on the multi-information displayStop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has
cooled down, inspect the hoses
and radiator core (radiator) for
any leaks.Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact any autho-
rized Lexus dealer or repairer, or
another duly qualified and
equipped professional.
5
6
7
1
2
3
1
2

5738-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D56E)
The coolant level is satisfactory if
it is between the “F” and “L” lines
on the reservoir.Reservoir
“F”
“L”
Add coolant if necessary.
Water can be used in an emergency
if coolant is unavailable.
Start the hybrid system and check for the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
If the message is not displayed:
Have the vehicle inspected at the nearest authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
4
1
2
3
5
6

5748-2. Steps to take in an emergency
IS300h_EE(OM53D56E)
CAUTION
■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 compartment may be very hot.
●After the hybrid system has been turned off, check that the “READY” indicator is off.
When the hybrid system operating, the gasoline engine may automatically start, or
the cooling fan may suddenly operate even if the gasoline engine stops. Do not touch
or approach rotating parts such as the belt and fan, which may lead to fingers or
clothing (especially a tie, a scarf or a mu ffler) getting caught, resulting in serious
injury.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently. Adding cool
coolant to a hot hybrid system too quickly can cause damage to the hybrid system.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additive.
●Do not loosen the coolant reservoir caps or
water filler cap while the hybrid system and
radiator are hot.
High temperature steam or coolant could
spray out.

5758-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D56E)
Stop the hybrid system. Set the parking brake and shift the shift lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material under the rear wheels to help pro-
vide traction.
Restart the hybrid system.
Shift the shift lever to D or R and release the parking brake. Then, while exer-
cising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
If the vehicle becomes stuck
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt or snow:
Press to turn off TRC.
1
2
3
4
5

5768-2. Steps to take in an emergency
IS300h_EE(OM53D56E)
CAUTION
■When attempting to free a stuck vehicle
If you choose to push the vehicle back and forth to free it, make sure the surrounding
area is clear to avoid striking other vehicles, objects or people. The vehicle may also
lunge forward or lunge back suddenly as it becomes free. Use extreme caution.
■When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may cause an acci-
dent resulting in death or serious injury.
NOTICE
■To avoid damaging the transmission and other components
●Avoid spinning the rear wheels and depressing the accelerator pedal more than nec-
essary.
●If the vehicle remains stuck even after these procedures are performed, the vehicle
may require towing to be freed.

577
9Vehicle specifications
IS300h_EE(OM53D56E)
9-1. SpecificationsMaintenance data (fuel, oil level, etc.) .................. 578
Fuel information..........................589
9-2. Customization Customizable features ............. 591
9-3. Initialization Items to initialize .......................... 601

578
IS300h_EE(OM53D56E)9-1. Specifications
*1:Unladen vehicle
*2: Vehicles with 255/35R18 tires
*3: AVE30L-AEXEHW and AVE30R-AEXEHW models
*4: AVE30L-AEXLHW and AVE30R-AEXLHW models
The model code is indicated on the manufacturer’s label. (→P. 5 7 9 )
*5: 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.)
Rear 1550 mm (61.0 in.)
1540 mm (60.6 in.)*2
Gross vehicle mass*52130 kg (4696 lb.)*3
2145 kg (4729 lb.)*4
Maximum permissi-
ble axle capacity
*5
Front 1090 kg (2403 lb.)
Rear 1200 kg (2646 lb.)
Drawbar load*575 kg (165 lb.)
Towing capacity*5With brake 750 kg (1653 lb.)
Witho ut brake 750 kg (1653 lb.)

579
9
9-1. Specifications
Vehicle specifications
IS300h_EE(OM53D56E)
■Vehicle identification number
The vehicle identification number (VIN) is the legal identifier for your vehicle.
This is the primary identification number for your Lexus. It is used in register-
ing the ownership of your vehicle.
This number is stamped on the top left
of the instrument panel and in the
engine compartment.
This number is also on the manufac-
turer’s label.
■Engine number
The engine number is stamped on
the engine block as shown.
Vehicle identification

5809-1. Specifications
IS300h_EE(OM53D56E)
Engine
Model2AR-FSE
Ty p e4-cylinder in line, 4-cycle, gasoline
Bore and stroke90.0 × 98.0 mm (3.54 × 3.86 in.)
Displacement2494 cm3 (152.2 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.)
Electric motor (traction motor)
Ty p ePermanent magnet synchronous motor
Maximum output105 kW
Maximum torque300 N•m (30.6 kgf•m, 221.3 ft•lbf)
Hybrid battery (traction battery)
Ty p eNickel-Metal hydride battery
Vo l t a g e7. 2 V/m o d u l e
Capacity6.5 Ah (3HR)
Quantity32 modules
Overall voltage230.4 V