LEXUS RX 450H (2019 year). Manual — part 44
704
8-2. Steps to take in an emergency
RX450h_RX450hL_U
■
If “Hybrid System Overheated Reduced Output Power” is shown on the
multi-information display
Stop 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 your Lexus
dealer.
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL” line
“LOW” line
Add coolant if necessary.
Water can be used in an emergency
if coolant is unavailable.
1
2
3
1
2
4
1
2
3
5
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8-2. Steps to take in an emergency
8
When trouble
ari
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RX450h_RX450hL_U
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.
WARNING
■
To prevent an accident or injury 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 is operating, the gasoline engine may automatically start, or
the cooling fans may suddenly operate even if the gasoline engine stops. Do not
touch or approach rotating parts such as the 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 coolant reservoir caps while 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
706
8-2. Steps to take in an emergency
RX450h_RX450hL_U
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.
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2
3
4
5
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8-2. Steps to take in an emergency
8
When trouble
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RX450h_RX450hL_U
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 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 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 these procedures are performed, the vehicle
may require towing to be freed.
708
8-2. Steps to take in an emergency
RX450h_RX450hL_U
709
9
Vehicle specifications
RX450h_RX450hL_U
(fuel, oil level, etc.) . . . . ... 710
Fuel information. . . . . . ..720
Tire information . . . . . . .. 723
710
RX450h_RX450hL_U
9-1. Specifications
*
1
: Unladen vehicle
*
2
: Vehicles with towing package
*
3
: RX450h
*
4
: RX450hL
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
Overall length
192.5 in. (4890 mm)
*
3
196.9 in. (5000 mm)
*
4
Overall width
74.6 in. (1895 mm)
Overall height
*
1
67.7 in. (1720 mm)
Wheelbase
109.8 in. (2790 mm)
Tread
Front
64.4 in. (1635 mm)
*
3
64.5 in. (1640 mm)
*
4
Rear
64.0 in. (1625 mm)
*
3
64.1 in. (1630 mm)
*
4
Vehicle capacity weight
(Occupants + luggage)
920 lb. (420 kg)
*
3
1070 lb. (490 kg)
*
4
Trailer Weight Rating
*
2
(Trailer weight + cargo weight)
3500 lb. (1585 kg)
*
3
711
9-1. Specifications
9
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RX450h_RX450hL_U
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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.
This number is also on the Certifica-
tion Label.
On some models, this number is also
stamped under the right-hand front
seat.
Vehicle identification
712
9-1. Specifications
RX450h_RX450hL_U
■
Engine number
The engine number is stamped on
the engine block as shown.
Front
Rear
Engine
Model
3.5 L 6-cylinder (2GR-FXS)
Type
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)
Type
Permanent magnet synchronous motor
Maximum output
123 kW
Maximum torque
247 ft•lbf (335 N•m, 34.2 kgf•m)
Type
Permanent magnet synchronous motor
Maximum output
50 kW
Maximum torque
103 ft•lbf (139 N•m, 14.2 kgf•m)
713
9-1. Specifications
9
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RX450h_RX450hL_U
*
: The engine oil capacity is a reference quantity to be used when changing the engine
oil. Warm up the engine and turn off the hybrid system, wait more than 5 minutes, and
check the oil level on the dipstick.
Hybrid battery (traction battery)
Type
Nickel-Metal hydride battery
Voltage
9.6 V/module
Capacity
6.5 Ah (3HR)
Quantity
30 modules
Overall voltage
288 V
Lubrication system
Oil capacity
(Drain and refill — reference
*
)
With filter
Vehicles with towing package
5.8 qt. (5.5 L, 4.8 Imp. qt.)
Vehicles without towing package
5.7 qt. (5.4 L, 4.8 Imp. qt.)
Without filter
5.6 qt. (5.3 L, 4.7 Imp. qt.)
714
9-1. Specifications
RX450h_RX450hL_U
■
Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the following
grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good start-
ing in cold weather.
If SAE 0W-20 is not available, SAE
5W-20 oil may be used. However, it
must be replaced with SAE 0W-20
at the next oil change.
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allows cold
startability. Oils with a lower value before the W allow for easier starting of
the engine in cold weather.
• The 20 in 0W-20 indicates the viscosity characteristic of the oil when the
oil is at high temperature. An oil with a higher viscosity (one with a higher
value) may be better suited if the vehicle is operated at high speeds, or
under extreme load conditions.
How to read oil container label:
The International Lubricant Specifi-
cation Advisory Committee
(ILSAC) Certification Mark is added
to some oil containers to help you
select the oil you should use.
Outside temperature
715
9-1. Specifications
9
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RX450h_RX450hL_U
*
: The coolant capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
Cooling system
Capacity
*
Gasoline
engine
RX450h
10.7 qt. (10.1 L, 8.9 Imp. qt.)
RX450hL
13.2 qt. (12.5 L, 11 Imp. qt.)
Power control
unit
2.0 qt. (1.9 L, 1.7 Imp. qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and non-
borate coolant with long-life hybrid organic
acid technology
Do not use plain water alone.
Ignition system (spark plug)
Make
DENSO FK20HBR8
Gap
0.03 in. (0.8 mm)
NOTICE
■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
12-volt battery
Open voltage at 68
F (20C):
12.6 V or higher: Fully charged
12.2 — 12.4 V: Half charged
12.0 V or lower: Discharged
(Voltage is checked 20 minutes after the hybrid
system and all lights are turned off.)
Charging rates
5 A max.
716
9-1. Specifications
RX450h_RX450hL_U
*
: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
*
: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
*
: Minimum pedal clearance when depressed with a force of 110 lbf (490 N, 50.0 kgf)
while the hybrid system is operating.
Hybrid transmission
Fluid capacity
*
5.1 qt. (4.8 L, 4.2 Imp. qt.)
Fluid type
Toyota Genuine ATF WS
NOTICE
■
Hybrid transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ultimately damage
the hybrid transmission of your vehicle.
Rear differential (Rear electric motor)
Fluid capacity
*
1.9 qt. (1.8 L, 1.6 Imp. qt.)
Fluid type
Toyota Genuine ATF WS
NOTICE
■
Hybrid transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ultimately damage
the hybrid transmission of your vehicle.
Brakes
Pedal clearance
*
3.7 in. (95 mm) Min.
Brake pad wear limit
0.04 in. (1.0 mm)
Pedal free play
0.04 — 0.24 in. (1.0 — 6.0 mm)
Fluid type
FMVSS No. 116 DOT 3 or SAE J1703
717
9-1. Specifications
9
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RX450h_RX450hL_U
Type A
Steering
Free play
Less than 1.2 in. (30 mm)
Tires and wheels
Tire size
235/65R18 106V, T165/90D18 107M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Front tire
33 psi (230 kPa, 2.3 kgf/cm
2
or bar)
Rear tire
33 psi (230 kPa, 2.3 kgf/cm
2
or bar)
Spare tire
60 psi (420 kPa, 4.2 kgf/cm
2
or bar)
Driving at high speeds (above 100 mph [160 km/h])
(in countries where such speeds are permitted by
law)
Add 5 psi (30 kPa, 0.3 kgf/cm
2
or bar) to the
front and rear tires. Never exceed the maximum
cold tire inflation pressure indicated on the tire
sidewall.
Wheel size
18
8 J, 18 4 T (spare)
Wheel nut torque
76 ft•lbf (103 N•m, 10.5 kgf•m)
718
9-1. Specifications
RX450h_RX450hL_U
Type B
Tire size
235/55R20 102V, T165/90D18 107M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)
RX450h:
Front tire
33 psi (230 kPa, 2.3 kgf/cm
2
or bar)
Rear tire
33 psi (230 kPa, 2.3 kgf/cm
2
or bar)
Spare tire
60 psi (420 kPa, 4.2 kgf/cm
2
or bar)
Driving at high speeds (above 100 mph [160 km/h])
(in countries where such speeds are permitted by
law)
Add 11 psi (70 kPa, 0.7 kgf/cm
2
or bar) to the
front and rear tires. Never exceed the maximum
cold tire inflation pressure indicated on the tire
sidewall.
RX450hL:
Front tire
35 psi (240 kPa, 2.4 kgf/cm
2
or bar)
Rear tire
35 psi (240 kPa, 2.4 kgf/cm
2
or bar)
Spare tire
60 psi (420 kPa, 4.2 kgf/cm
2
or bar)
Driving at high speeds (above 100 mph [160 km/h])
(in countries where such speeds are permitted by
law)
Add 9 psi (62 kPa, 0.6 kgf/cm
2
or bar) to the
front and rear tires. Never exceed the maximum
cold tire inflation pressure indicated on the tire
sidewall.
Wheel size
20
8 J, 18 4 T (spare)
Wheel nut torque
76 ft•lbf (103 N•m, 10.5 kgf•m)
719
9-1. Specifications
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RX450h_RX450hL_U
Light bulbs
Light bulbs
Bulb No.
W
Type
Exterior
Front side marker lights
*
1
5
B
Front turn signal lights
*
1
7444NA
28/8
A
Rear turn signal lights
*
1
21
A
Back-up lights
921
16
B
Interior
Door courtesy lights
*
2
5
B
Vanity lights
8
B
Luggage compartment light
5
B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
*
1
: Vehicles with single-beam headlights
*
2
: Vehicles without door trim ornament lights
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