2021 LEXUS RX450h length

1313-3. Adjusting the seats
3
Before driving
3-3.Adjusting the seats
Seat position adjustment switch
Seat cushion (front) angle adjust-
ment switch
Vertical height adjustment switch
Seatback angle adjustment switch
Lumbar support firmness adjust-
ment switch
Lumbar support height adjustment
switch (if equipped)
Seat cushion length adjustment
switch (if equipped)
■Power easy access system
The driver’s seat (on some models) and
steering wheel move in accordance with
power switch mode and the driver’s seat
belt condition. ( P.142)
Front seats
WARNING
■When adjusting the seat position
●Take care when ad justing the seat
position to ensure that other passen-
gers are not injured by the moving
seat.
●Do not put your hands under the seat
or near the moving parts to avoid
injury. Fingers or hands may become
jammed in the se at mechanism.
●Make sure to leave enough space
around the feet so they do not get
stuck.
■Seat adjustment
To reduce the risk of sliding under the lap
belt during a collision, do not recline the
seat more than necessary.
If the seat is too reclined, the lap belt may
slide past the hips and apply restraint
forces directly to the abdomen, or your
neck may contact the shoulder belt,
increasing the risk of death or serious
injury in the event of an accident.
Adjustments should not be made while
driving as the seat may unexpectedly
move and cause the driver to lose control
of the vehicle.
Adjustment procedure
A
B
C
D
E
F
G

1714-1. Before driving
4
Driving
WARNING
●Do not stack cargo and luggage in the
luggage compartment higher than the
seatbacks.
●When you fold down the rear seats,
long items should not be placed
directly behind the front seats.
●Never allow anyone to ride in the lug-
gage compartment. It is not designed
for passengers. They should ride in
their seats with their seat belts prop-
erly fastened.
●Do not place cargo or luggage in or on
the following locations.
• At the feet of the driver
• On the front passenger or rear seats (when stacking items)
• On the luggage cover
• On the instrument panel
•On the dashboard
●Secure all items in the occupant com-
partment.
■Capacity and distribution
●Do not exceed the maximum axle
weight rating or the total vehicle
weight rating.
●Even if the total load of occupant’s
weight and the cargo load is less than
the total load capacity, do not apply the
load unevenly. Improper loading may
cause deterioration of steering or
braking control which may cause
death or serious injury.
■Roof luggage carrier precautions
Observe the following precautions:
●Place the cargo so that its weight is dis-
tributed evenly between the front and
rear axles.
●If loading long or wide cargo, never
exceed the vehicle overall length or
width. (
P.460)
●Before driving, make sure the cargo is
securely fastened on the roof luggage
carrier.
●Loading cargo on the roof luggage
carrier will make the center of gravity
of the vehicle higher. Avoid high
speeds, sudden starts, sharp turns,
sudden braking or abrupt maneuvers,
otherwise it may result in loss of con-
trol or vehicle rollover due to failure to
operate this vehicle correctly and
result in death or serious injury.
●If driving for a long distance, on rough
roads, or at high sp eeds, stop the vehi-
cle now and then during the trip to
make sure the cargo remains in its
place.
●Do not exceed 165 lb. (75 kg) cargo
weight on the roof luggage carrier.
NOTICE
■When loading cargo (vehicles with a
moon roof or panoramic moon roof)
Be careful not to scratch the surface of
the moon roof or panoramic moon roof.

1804-1. Before driving
Shank length
Protrudes beyond the bottom of the lock
washer and nut by at least 2 threads.
Shank diameter
Matches the ball mount hole diameter size.
Weight carrying ball position:
44.96 in. (1142 mm)
Hitch receiver pin hole position:
35.94 in. (913 mm)
Use the wire harness stored in the rear
end under body.
■Auto current cut-off function
In case of over current, the auto cut-off
function stops the power flowing to the
trailer lights to prevent damage to the vehi- cle’s electrical system.
This function is activ
ated when the rated
current of any of the following trailer light
circuit components is exceeded:
●Tail lights: maximum 7.8 A
●Stop/turn signal light (right): maximum
4.5 A
●Stop/turn signal light (left): maximum 4.5
A
■When the auto current cut function is
activated
If a trailer light does not come on due to the
activation of the auto current cut function,
the light system will need to be reset.
Follow the reset procedure shown below.
●If a tail light does not come on, turn off the
headlight switch.
●If the right-side stop/turn signal light does
not come on, put the turn signal in the off
position or remove foot from the brake
pedal.
●If the left-side stop/t urn signal light does
not come on, put the turn signal in the off
position or remove foot from the brake
pedal.
If the emergency flashers do not operate,
press the emergency flasher switch to turn
them off.
After the light system is reset, operate the
light switches again to see if the lights oper-
ate normally.
If the lights do not operate normally, have
the vehicle inspected by your Lexus dealer.
Your vehicle will handle differently
when towing a trailer. Help to avoid an
accident, death or se rious injury, keep
the following in mind when towing:
 Speed limits for towing a trailer vary
by state or province. Do not exceed
the posted towing speed limit.
 Lexus recommends that the vehi-
Positions for towing hitch
receiver and hitch ball
Connecting trailer lights
C
D
A
B
Trailer towing tips

1814-1. Before driving
4
Driving
cle-trailer speed limit is 65 mph
(104 km/h) on a flat, straight, dry
road. Do not exceed this limit, the
posted towing speed limit or the
speed limit for your trailer as set
forth in your trailer owner’s manual,
whichever is lowest. Instability of the
towing vehicle-trailer combination
(trailer sway) increases as speed
increases. Exceeding speed limits
may cause loss of control.
 Before starting out, check the trailer
lights, tires and the vehicle-trailer
connections. Recheck after driving
a short distance.
 Practice turning, stopping and
reversing with the trailer attached in
an area away from traffic until you
become accustomed to the feel of
the vehicle-trailer combination.
 Reversing with a tr ailer attached is
difficult and requires practice. Grip
the bottom of the steering wheel
and move your hand to the left to
move the trailer to the left. Move
your hand to the right to move the
trailer to right. (This is generally
opposite to reversing without a
trailer attached.) Avoid sharp or
prolonged turning. Have someone
guide you when reversing to reduce
the risk of an accident.
 As stopping distance is increased
when towing a trailer, vehicle-to
vehicle distance should be
increased. For each 10 mph (16
km/h) of speed, allow at least one
vehicle and trailer length.
 Avoid sudden braking as you may skid, resulting in the trailer jackknif-
ing and a loss of vehicle control. This
is especially true on wet or slippery
surfaces.
 Avoid jerky starts or sudden accel-
eration.
 Avoid jerky steering and sharp
turns, and slow down before making
turn.
 Note that when making a turn, the
trailer wheels will be closer than the
vehicle wheels to the inside of the
turn. Compensate by making a
wider than normal turning radius.
 Slow down before making a turn, in
cross winds, on wet or slippery sur-
faces, etc. Increasing vehicle speed
can destabilize the trailer.
 Take care when passing other vehi-
cles. Passing requires considerable
distance. After pass ing a vehicle, do
not forget the length of your trailer,
and be sure you have plenty of room
before changing lanes.
 To maintain engine braking effi-
ciency and charging system perfor-
mance when using engine braking,
do not put the transmission in D.
( P.191)
 Instability happens more frequently
when descending steep or long
downhill grades. Before descend-
ing, slow down and downshift. Do
not make sudden downshifts while
descending steep or long downhill
grades.
 Avoid holding the brake pedal down
too long or applying the brakes too

2924-6. Driving tips
immediately to prevent it from
freezing.
 To ensure proper operation of the
climate control system fan, remove
any snow that has accumulated on
the air inlet vents in front of the
windshield.
 Check for and remove any excess
ice or snow that may have accumu-
lated on the exterior lights, vehicle’s
roof, chassis, around the tires or on
the brakes.
 Remove any snow or mud from the
bottom of your shoes before getting
in the vehicle.
Accelerate the vehicle slowly, keep a
safe distance between you and the
vehicle ahead, and drive at a reduced
speed suitable to road conditions.
 Park the vehicle and move the shift
lever to P without setting the park-
ing brake. The parking brake may
freeze up, preventing it from being
released. If the vehicle is parked
without setting the parking brake,
make sure to block the wheels. Fail-
ure to do so may be dangerous
because it may cause the vehicle to
move unexpectedly, possibly lead-
ing to an accident.
When the parking brake is in automatic
mode, release the parking brake after shift-
ing the shift lever to P. ( P.196)
 If the vehicle is parked without set-
ting the parking brake, confirm that
the shift lever cannot be moved out
of P
*.
*: The shift lever will be locked if it is
attempted to be shifted from P to any
other position with out depressing the
brake pedal. If the shift lever can be
shifted from P, there may be a problem
with the shift lock system. Have the vehi-
cle inspected by your Lexus dealer
immediately.
Use the correct tire chain size when
mounting the tire chains.
Chain size is regulated for each tire
size.
Side chain (0.12 in. [3 mm] in diam-
eter)
Side chain (0.43 in. [10.8 mm] in
width)
Side chain (0.98 in. [25 mm] in
length)
Cross chain (0.15 in. [3.9 mm] in
diameter)
Cross chain (0.54 in. [13.8 mm] in
width)
Cross chain (1.00 in. [25.3 mm] in
When driving the vehicle
When parking the vehicle
Selecting tire chains
A
B
C
D
E
F

2934-6. Driving tips
4
Driving
length)
Regulations regarding the use of tire
chains vary depending on location and
type of road. Always check local regu-
lations before installing chains.
■Tire chain installation
Observe the following precautions when
installing and removing chains:
●Install and remove tire chains in a safe
location.
●Install tire chains on the front tires only.
Do not install tire chains on the rear tires.
●Install tire chains on fr ont tires as tightly as
possible. Retighten chains after driving
1/4 1/2 mile (0.5 1.0 km).
●Install tire chains following the instruc-
tions provided with the tire chains.
To enable the windshield wipers to be
lifted when heavy snow or icy condi-
tions are expected, change the rest
position of the windshield wipers from
the retracted position below the hood
to the service position using the wiper
lever. ( P.208) 
Specific design characteristics give
it a higher center of gravity than
ordinary passenger cars. This vehi-
cle design feature causes this type
of vehicle to be more likely to roll-
over. And, utility vehicles have a sig-
nificantly higher rollover rate than
other types of vehicles.
 An advantage of th e higher ground
clearance is a better view of the
road allowing you to anticipate
problems.
 It is not designed for cornering at
the same speeds as ordinary pas-
senger cars any more than
low-slung sports cars are designed
to perform satisfactorily under
off-road conditions. Therefore,
sharp turns at excessive speeds may
cause the vehicle to rollover.
Regulations on the use of tire
chains
NOTICE
■Fitting tire chains
The tire pressure warning valves and
transmitters may not function correctly
when tire chains are fitted.
Windshield wipers
Utility vehicle precautions
This vehicle belongs to the utility
vehicle class, which has higher
ground clearance and narrower
tread in relation to the height of its
center of gravity.
Utility vehicle feature
WARNING
■Utility vehicle precautions
Always observe the following precau-
tions to minimize the risk of death, seri-
ous injury or damage to your vehicle:

4608-1. Specifications
8-1.Specifications
*1:RX450h
*2:RX450hL
*3:Unladen vehicle
*4: Vehicles with towing package
*1:RX450h
*2:RX450hL
■Vehicle identification number
The vehicle identification number (VIN) is the legal identifier for your
vehicle. This is the primary identifica-
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
Overall length192.5 in. (4890 mm)*1
196.9 in. (5000 mm)*2
Overall width74.6 in. (1895 mm)
Overall height*367.7 in. (1720 mm)
Wheelbase109.8 in. (2790 mm)
Tread
Front64.4 in. (1635 mm)*1
64.5 in. (1640 mm)*2
Rear64.0 in. (1625 mm)*1
64.1 in. (1630 mm)*2
Vehicle capacity weight
(Occupants + luggage)920 lb. (420 kg)*1
1070 lb. (490 kg)*2
Trailer Weight Rating*4
(Trailer weight + cargo weight)3500 lb. (1585 kg)*1
Seating capacity
Seating capacity5 (Front 2, Rear 3)*1
6 (Front 2, Rear 4)*2
Vehicle identification