Page 577 of 660

5777-2. Steps to take in an emergency
7
When trouble arises
RX450h_U_OM0E013U Start the hybrid system and check if “Hybrid System Overheated Reduced
Output Power” is shown on the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact your Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer. WA R N I N G ■
To prevent an accident or injury when in specting 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. ●
After the hybrid system has been turned off, check that the “READY” indicator is off.
When the hybrid system is operating, the gasoline engine may au tomatically start, or
the cooling fans may suddenly operate even if the gasoline engine stops. Do not
touch or approach rotating parts such as th e fans, which may lead to fingers or cloth-
ing (especially a tie, a scarf or a muffler) getting caught, resulting in serious injury.●
Do not loosen the radiator cap and the cool ant reservoir caps wh ile the hybrid system
and radiator are hot.
High temperature steam or coolant could spray out.
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. 6
Page 578 of 660
578 7-2. Steps to take in an emergency
RX450h_U_OM0E013U Stop the hybrid system. Shift the shift lever to P and set the parking brake.
Remove the mud, snow or sand from around the front wheels.
Place wood, stones or some other material under the front 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 TRAC. 1
2
3
4
5
Page 579 of 660
5797-2. Steps to take in an emergency
7
When trouble arises
RX450h_U_OM0E013U WA R N I N G ■
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 accelerati on of the vehicle that may cause an acci-
dent resulting in death or serious injury.
NOTICE ■
To avoid damage to the hybrid transmission and other components ●
Avoid spinning the front 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 580 of 660
580 7-2. Steps to take in an emergency
RX450h_U_OM0E013U
Page 581 of 660
581
8Vehicle specifications
RX450h_U_OM0E013U 8-1. Specifications
Maintenance data
(fuel, oil level, etc.)...................582
Fuel information........................... 591
Tire information ........................... 594
8-2. Customization
Customizable features ............ 607
8-3. Initialization
Items to initialize ...........................619
Page 582 of 660
582
RX450h_U_OM0E013U 8-1. Spec ifications
* 1
: Unladen vehicle
* 2
: Vehicles with towing packageMaintenance data (fuel, oil level, etc.) Dimensions and weight Overall length 192.5 in. (4890 mm)
Overall width 74 . 6 i n . ( 1 8 9 5 m m )
Overall height
* 1
67.7 in. (1720 mm)
Wheelbase 109.8 in. (2790 mm)
Tr e a d Front 64.4 in. (1635 mm)
Rear 64.0 in. (1625 mm)
Vehicle capacity weight
(Occupants + luggage) 920 lb. (420 kg)
Trailer Weight Rating
* 2
(Trailer weight + cargo weight) 3500 lb. (1588 kg)
Page 583 of 660
5838-1. Specifications
8
Vehicle specifications
RX450h_U_OM0E013U ■
Vehicle identification number
The vehicle identification number (VIN) is the legal identifier for your vehicle.
This is the primary identification number fo r 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.
This number is also on the Certifica-
tion Label.
■
Engine number
The engine number is stamped on
the engine block as shown.Vehicle identification
Page 584 of 660
584 8-1. Specifications
RX450h_U_OM0E013U
Front
Rear (AWD models)Engine Model 3.5 L 6-cylinder (2GR-FXS)
Ty p e 6-cylinder V type, 4-cycle, gasoline
Bore and stroke 3.70 3.27 in. (94.0 83.0 mm)
Displacement 210.9 cu. in. (3456 cm 3
)
Valve clearance (engine cold) Automatic adjustment
Fuel Fuel type Unleaded gasoline only
Octane Rating 91 (Research Octane Number 96) or higher
Fuel tank capacity (Reference) 17.2 gal. (65 L, 14.3 Imp. gal.)
Electric motor (traction motor) Ty p e Permanent magnet synchronous motor
Maximum output 123 kW
Maximum torque 247 ft•lbf (335 N•m, 34.2 kgf•m)
Ty p e Permanent magnet synchronous motor
Maximum output 50 kW
Maximum torque 103 ft•lbf (139 N•m, 14.2 kgf•m)