Page 577 of 656
5778-2. Steps to take in an emergency
8
When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Engine coolant reservoir:
The coolant level is satisfactory if it is between the “FULL” and “LOW” lines on
the reservoir.
Reservoir cap
“FULL” line
“LOW” line
Intercooler coolant reservoir (IS300):
The coolant level is satisfactory if it is between the “F” and “L” lines on the reser-
voir.
Reservoir cap
“F” line
“L” line4
IS350 AWD/IS350/IS300 AWDIS300
1
2
3
1
2
3
Page 578 of 656

5788-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Add coolant if necessary.
Water can be used in an emerge ncy if coolant is unavailable.
Start the engine and turn the air conditio ning system on to check that the radi-
ator 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 engine immediately an d contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
Check if “Engine Coolant Temp High St op in a Safe Place See Owner’s Man-
ual” 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.
5
Engine (IS350 AWD/IS350/
IS300 AWD)Engine (IS300)
Intercooler (IS300)
6
7
8
Page 579 of 656

5798-2. Steps to take in an emergency
8
When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
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 h ood, do not open the hood until the steam
has subsided. The engine compartment 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 seri-
ous injury.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has cool ed down sufficiently. Adding cool coolant
to a hot engine too quickly can cause damage to the engine.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreig n matter (such as sand or dust etc.).
●Do not use any coolant additive.
●IS350 AWD/IS350/IS300 AWD: Do not
loosen the coolant inlet cap or coolant reser-
voir 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 intercooler reser-
voir cap while the engine and radiator are hot.
High temperature steam or coolant could
spray out.
Page 580 of 656
5808-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Stop the engine. Set the parking br ake and shift the shift lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other materi al under the rear wheels to help pro-
vide traction.
Restart the engine.
Shift the shift lever to D or R and rele ase 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 TRAC.
1
2
3
4
5
Page 581 of 656
5818-2. Steps to take in an emergency
8
When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
WARNING
■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 vehicl es, 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 deat h 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 th ese procedures are performed, the vehicle
may require towing to be freed.
Page 582 of 656
5828-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Page 583 of 656
583
Vehicle specifications9
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
9-1. Specifications
Maintenance data (fuel, oil level, etc.) ..................584
Fuel information.......................... 596
Tire information ..........................599
9-2. Customization Customizable features ............... 611
9-3. Initialization Items to initialize ......................... 620
Page 584 of 656
584
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
9-1. Specifications
*1:Unladen vehicle
*2:Vehicles with 255/35R18 tires
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
Overall length184.3 in. (4680 mm)
Overall width71.3 in. (1810 mm)
Overall height*156.3 in. (1430 mm)
Wheelbase110.2 in. (2800 mm)
Tread*1
Front60.4 in. (1535 mm)
Rear61.0 in. (1550 mm)
60.6 in. (1540 mm)
*2
Vehicle capacity weight (Occupants + lug-
gage)825 lb. (375 kg)