tow LEXUS RX450H 2016 Owners Manual

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3-5. Opening, closing the windows and
moon roof
Power windows ........................... 189
Moon roof .......................................193
Panoramic moon roof................ 197
4-1. Before driving Driving the vehicle .................... 204
Cargo and luggage .................... 212
Vehicle load limits .......................216
Trailer towing (vehicles with towing package) ....................... 217
Trailer towing (vehicles without towing
package)..................................... 230
Dinghy towing ...............................231
4-2. Driving procedures Power (ignition) switch............ 232
EV drive mode ............................ 237
Hybrid transmission.................. 239
Turn signal lever ......................... 244
Parking brake .............................. 245
Brake Hold ................................... 249
4-3. Operating the lights and wipers
Headlight switch ..........................251
Automatic High Beam............. 255
Fog light switch ........................... 259
Windshield wipers and washer ......................................... 260
Rear window wiper and washer ......................................... 265 4-4. Refueling
Opening the fuel tank cap .................................................267
4-5. Using the driving support systems
Lexus Safety System+ ................ 271
PCS (Pre-Collision System) ......... 279
LKA (Lane-Keeping Assist).......... 292
LDA (Lane Departure Alert with steering
control)........................................ 302
Dynamic radar cruise control with full-speed
range ............................................... 311
Dynamic radar cruise control ......................................... 323
Cruise control ............................. 335
Intuitive parking assist.............. 339
Lexus parking assist monitor........................................ 347
BSM (Blind Spot Monitor) ............. 363
• BSM function......................... 367
• RCTA function........................ 371
Driving mode select switch ............................................377
Driving assist systems ............... 381
4-6. Driving tips Hybrid vehicle driving tips ................................................. 387
Winter driving tips..................... 390
Utility vehicle precautions ..... 394
4Driving

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6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 458
Cleaning and protecting the vehicle interior.................. 462
6-2. Maintenance Maintenance requirements ............................ 465
General mainte nance.............. 467
Emission inspection and maintenance (I/M)
programs.................................... 470
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions.................................. 471
Hood ............................................... 473
Positioning a floor jack ............ 474
Engine compartment ............... 475
12-volt battery ............................. 483
Tires ................................................. 487
Tire inflation pressure .............. 496
Wheels ........................................... 499
Air conditioning filter ................ 501
Windshield wiper inserts ........ 504
Electronic key battery.............. 506
Checking and replacing fuses..............................................508
Headlight aim ................................. 511
Light bulbs ..................................... 513 7-1. Essential information
Emergency flashers .................. 528
If your vehicle has to be stopped in an
emergency ................................ 529
7-2. Steps to take in an emergency
If your vehicle needs to be towed ........................................... 530
If you think something is wrong........................................... 535
If a warning light turns on or a warning buzzer
sounds ......................................... 536
If a warning message is displayed .................................... 543
If you have a flat tire .................. 549
If the hybrid system will not start .................................................561
If the shift lever cannot be shifted from P ........................... 563
If the electronic key does not operate properly ............. 564
If the 12-volt battery is discharged................................. 568
If your vehicle overheats......... 574
If the vehicle becomes stuck ............................................. 578
6Maintenance and care7When trouble arises

18Pictorial index
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■Instrument panel
Power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 2 32
Starting the hybrid system/changing the modes . . . . . . . . . . . . . . . . . . . . . . . P. 232
Emergency stop of the hybrid system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 529
When the hybrid system will not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 561
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 239
Changing the shift position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 239
Precautions against towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 530
When the shift lever does not move . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 563
Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 97
Reading the meters/adjusting the instrument panel light . . . . . . . . . . . . . P. 97, 99
Warning lights/indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 92
When the warning lights come on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 536
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411-1. For safe use
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For safety and security
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WARNING
■SRS airbag precautions
Observe the following precautions regarding the SRS airbags.
Failure to do so may cause death or serious injury.
●The driver and all passengers in the vehicle must wear their seat belts properly.
The SRS airbags are supplemental devices to be us ed with the seat belts.
●The SRS driver airbag deploys with considerable force, and can cause death or seri-
ous injury especially if the driver is very close to the airbag. The National Highway
Traffic Safety Administration (NHTSA) advises:
Since the risk zone for the driver’s airbag is the first 2 - 3 in. (50 - 75 mm) of inflation,
placing yourself 10 in. (250 mm) from your driver airbag provides you with a clear
margin of safety. This distance is measured from the center of the steering wheel to
your breastbone. If you sit less than 10 in. (250 mm) away now, you can change your
driving position in several ways:
• Move your seat to the rear as far as you can while still reaching the pedals com-
fortably.
• Slightly recline the back of the seat. Although vehicle designs vary, many drivers can achieve the 10 in. (250 mm) dis-
tance, even with the driver seat all the way forward, simply by reclining the back of
the seat somewhat. If reclining the back of your seat makes it hard to see the road,
raise yourself by using a firm , non-slippery cushion, or raise the seat if your vehicle
has that feature.
• If your steering wheel is ad justable, tilt it downward. This points the airbag toward
your chest instead of your head and neck.
The seat should be adjusted as recommended by NHTSA above, while still maintain-
ing control of the foot pedals, steering whee l, and your view of the instrument panel
controls.

431-1. For safe use
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For safety and security
RX450h_U_OM0E013U
WARNING
■SRS airbag precautions
●Do not sit on the edge of the seat or lean
against the dashboard.
●Do not allow a child to stand in front of the
SRS front passenger airbag unit or sit on the
knees of a front passenger.
●Do not allow the front seat occupants to hold
items on their knees.
●Do not lean against the door, the roof side rail
or the front, side and rear pillars.
●Do not allow anyone to kneel on the passen-
ger seat toward the door or put their head or
hands outside the vehicle.

691-2. Child safety
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For safety and security
RX450h_U_OM0E013U
◆Removing a child restraint system installed with a seat belt
Press the buckle release button and
fully retract the seat belt.
When releasing the buckle, the child
restraint system may spring up due to
the rebound of the seat cushion.
Release the buckle while holding
down the child restraint system.
Since the seat belt automatically
reels itself, slowly return it to the
stowing position.

831-3. Hybrid system
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For safety and security
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WARNING
■Road accident cautions
Observe the following precautions to reduce the risk of death or serious injury:
●Pull your vehicle off the road, shift the shift lever to P, apply the parking brake, and
turn the hybrid system off.
●Do not touch the high voltage parts, cables and connectors.
●If electric wires are exposed inside or outside your vehicle, an electric shock may
occur. Never touch exposed electric wires.
●If a fluid leak occurs, do not touch the flui d as it may be strong alkaline electrolyte
from the hybrid battery (traction battery). If it comes into contact with your skin or
eyes, wash it off immediately with a large amount of water or, if possible, boric acid
solution. Seek immedi ate medical attention.
●If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible. Never use a
fire extinguisher that is not meant for el ectric fires. Using even a small amount of
water may be dangerous.
●If your vehicle needs to be towed, do so with front wheels (2WD models) or four
wheels (AWD models) raised. If the wheels connected to the electric motor (traction
motor) are on the ground when towing, the motor may continue to generate electric-
ity. This may cause a fire. ( P. 530)
●Carefully inspect the ground under the vehicle. If you find that liquid has leaked onto
the ground, the fuel system may have been damaged. Leave the vehicle as soon as
possible.

1513-2. Opening, closing and locking the doors
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Operation of each component
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■Situations in which the close & lock function may not operate properly
In the following situations, the close & lock function may not operate properly:
●If the switch on the lower part of the power back door ( P. 145) is pressed by a
hand which is holding an electronic key
●If the switch on the lower pa rt of the power back door (P. 145) is pressed
when the electronic key is in a bag, etc. that is placed on the ground
●If the switch on the lower pa rt of the power back door (P. 145) is pressed with
the electronic key not near the vehicle.
■Situations in which the touchless sensor may malfunction (vehicles with a touchless
power back door)
In the following situations, the touchless sensor may operate unintentionally.
To prevent unintentional operat ion, keep the electronic key out of the operational range
or disable the touchless sensor operation. ( P. 112)
●When a large amount of water is applied to the rear emblem, such as in heavy rain
●When the vehicle is being washed and water is applied to the rear emblem
●When dirt is wiped off the rear emblem
●If someone leans toward or against the rear emblem
●When a metal object is brought near the rear emblem
●When a vehicle cover is installed or removed near the rear emblem
■Situations in which the touchless sensor may not operate properly (vehicles with a
touchless power back door)
If the touchless sensor does not operate in the following situations, use the back door
opener switch to open the power back door. (P. 145)
●In the following situations, the sensitivity of the touchless sensor may be temporarily
reduced and the touchless sensor may not operate:
• When a large amount of water is applied to the rear emblem, such as in heavy rain
• When the vehicle is being washed and water is applied to the rear emblem
• For several seconds after dirt is wiped off the rear emblem
• When the rear emblem is covered with mud, snow, ice, etc.
• When the vehicle has been parked for a wh ile near objects that may move and con-
tact the rear emblem, such as tall grass or trees
• When an external radio wave source is near the touchless sensor
●The touchless sensor may not operate in the following situations:
• When an electronic ke y is not being carried
• When an electronic key is not within the operational range
• When an external radio wave source in terferes with the communication between
the vehicle and electronic key ( P. 160)
• When the power back door is not fully closed
• When a hand is held pa rallel to the rear emblem
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: The detection settings can be changed by your Lexus dealer. ( P. 609)
■Customization
Some functions can be customized. ( P. 109, 607)

1603-2. Opening, closing and locking the doors
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■Electronic Key battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping the elec-
tronic key from re ceiving radio waves.
■Conditions affecting operation
The smart access system with push-button st art, wireless remote control and immobilizer
system use weak radio waves. In the following situations, the communication between the
electronic key and the vehicle may be affect ed, preventing the smart access system with
push-button start, wireless remote control an d immobilizer system from operating prop-
erly. (Ways of coping: P. 564)
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas st ation, radio station, large display, airport or
other facility that generates strong radio wave s or electrical noise
●When the electronic key is in contact with, or is covered by the following metallic
objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that emit radio waves) are being used nearby
●When carrying the electronic key together with the following devices that emit radio
waves
• Portable radio, cellular phone, cordle ss phone or other wireless communication
devices
• Another vehicle’s electronic key, another electronic key of your vehicle, or a wireless
key that emits radio waves
• Personal computers or person al digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or me tallic objects are attached to the rear win-
dow
●When the electronic key is placed near a battery charger or electronic devices
Press twice while pressing and holding .
Confirm that the electronic key indicator flashes
4 times.
While the battery-saving mode is set, the smart
access system with push
-button start cannot be
used. To cancel the function, press any of the
electronic key buttons.

1663-3. Adjusting the seats
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■Before folding down the rear seatbacks Stow the rear center seat belt and seat belt buckles.
Lower the rear seat head restraints. ( P. 179)
■Folding down the rear seatbacks (manual seat)
Rear seat lever
Pull the seatback angle adjustment
lever and fold down the rear seat-
back.
Luggage compartment lever
Pull the seatback angle adjustment
lever and fold down the rear seat-
back.
Folding down the rear seatbacks
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