light LEXUS RX450h 2016 Repair Manual

1973-5. Opening, closing the windows and moon roof
3
Operation of each component
RX450h_U_OM0E013U Opens the electronic sunshade Slide and hold th e switch back-
ward. The electronic sunshade will fully
open automatically.
*Closes the electronic sunshade Slide and hold the switch for-
ward. The electronic sunshade will fully
close automatically.
*
* : Quickly slide and release the switch in either direction to stop the electronic
sunshade partway.
Tilts the panoramic moon roof up
(press)
* When the panoramic moon roof is tilted
up, the electronic sunshade will open to
the half-open position of the roof.
* : Lightly press the switch again to
stop the panoramic moon roof partway.
Tilts the panoramic moon roof down
(press and hold) The panoramic moon roof can be tilted down only when it is in the tilt-up position.Panoramic moon roof 
 : If equippedUse the overhead switches to operat e the panoramic moon roof and elec-
tronic sunshade.
Opening and closing the electronic sunshade 1
2
Tilting the panoramic moon roof up and down

198 3-5. Opening, closing the windows and moon roof
RX450h_U_OM0E013U Opens the panoramic moon roof*
Slide and hold the switch back-
ward. The panoramic moon roof and
electronic sunshade will open automat-
ically. The panoramic moon roof can be
opened from the tilt-up position.
* : Quickly slide and release the
switch in either direction to stop the
panoramic moon roof partway.
Closes the panoramic moon roof
Slide and hold the switch for-
ward. The panoramic moon roof will
fully close automatically. ■
The panoramic moon roof can be operated when
The power switch is in ON mode. ■
Operating the panoramic moon roof af ter turning the hybrid system off
The panoramic moon roof and electronic sunshade can be operated for approximately
45 seconds after the power switch is turned to ACCESSORY mode or turned off. It can-
not, however, be operated once the driver’s door is opened. ■
Jam protection function
If an object is detected between the panoramic moon roof and the frame in the following
situations, travel is stopped and the panoramic moon roof opens slightly:●
The panoramic moon roof is closing or tilting down. ●
The electronic sunshade is closing. ■
Door lock linked panoramic moon roof operation●
The panoramic moon roof can be opened and closed using the mechanical key.
* (  P. 565) ●
The panoramic moon roof can be opened using the wireless remote control.
* (  P. 1 3 6 )
* : These settings must be cust omized at your Lexus dealer.Opening and closing the panoramic moon roof

2013-5. Opening, closing the windows and moon roof
3
Operation of each component
RX450h_U_OM0E013U WA R N I N G ■
To prevent burns or injuries
Do not touch the area between the underside of the panoramic moon roof and the
electronic sunshade. Your hand may get cau ght and you could injure yourself. Also, if
the vehicle is left in direct sunlight for a long time, the underside of the panoramic moon
roof could become very hot and could cause burns.
NOTICE ■
To prevent damage to the panoramic moon roof ●
Before opening the panoramic moon roof, make sure that there are no foreign
objects, such as stones or ice, around the opening.●
Do not hit the surface or edge of the panoramic moon roof with hard objects.●
Do not continuously press the switch after the panoramic moon roof has been
fully opened or closed. ■
After the vehicle has been washed or rained on
Before opening the panoramic moon roof , wipe any water off the panoramic moon
roof. Otherwise, water may enter the cabin when the panoramic moon roof is opened.

202
RX450h_U_OM0E013U 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..................................................2674 Driving

206 4-1. Before driving
RX450h_U_OM0E013U ■
Breaking in your new Lexus
To extend the life of the ve hicle, observing the followin g precautions is recommended:●
For the first 200 miles (300 km):
Avoid sudden stops. ●
For the first 500 miles (800 km):
Do not tow a trailer. ●
For the first 1000 miles (1600 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in low gears.
• Do not drive at a constant speed for extended periods. ■
Operating your vehicle in a foreign country
Comply with the relevant vehi cle registration laws and confirm the availability of the cor-
rect fuel. (  P. 5 9 1 )■
Eco-friendly driving
 P. 1 2 1
WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury. ■
When starting the vehicle
Always keep your foot on the brake pedal while stopped with the “READY” indicator is
illuminated. This prevents the vehicle from creeping. ■
When driving the vehicle ●
Do not drive if you are unfamiliar with the location of the brake and accelerator ped-
als to avoid depressing the wrong pedal.
• Accidentally depressing th e accelerator pedal instead of the brake pedal will
result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to difficulty in operat-
ing the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle only
slightly. This allows you to depress th e brake and accelerator pedals properly.
• Depress the brake pedal using your righ t foot. Depressing the brake pedal using
your left foot may delay response in an emergency, resulting in an accident. ●
The driver should pay extra attention to pedestrians when the vehicle is powered only
by the electric motor (traction motor). As there is no engine noise, the pedestrians
may misjudge the vehicle’s movement. ●
Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot parts may
cause a fire if there is any flammable material nearby.

208 4-1. Before driving
RX450h_U_OM0E013U WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury. ■
When driving on slippery road surfaces ●
Sudden braking, acceleration and steering may cause tire slippage and reduce your
ability to control the vehicle. ●
Sudden acceleration, engine braking due to shifting, or changes in engine speed
could cause the vehicle to skid. ●
After driving through a puddle , lightly depress the brake pe dal to make sure that the
brakes are functioning properly. Wet brake pads may prevent the brakes from func-
tioning properly. If the brakes on only on e side are wet and not functioning properly,
steering control may be affected. ■
When shifting the shift lever ●
Do not let the vehicle roll backward while the shift lever is in a driving position, or roll
forward while the shift lever is in R.
Doing so may result in an acci dent or damage to the vehicle.●
Do not shift the shift lever to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle control.●
Do not shift the shift lever to R wh ile the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle control.●
Do not shift the shift lever to a driving position while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle control.●
Shifting the shift lever to N while the vehicl e is moving will disengage the hybrid sys-
tem. Engine braking is not available when N is selected. ●
Be careful not to shift the shift lever with the accelerator pedal depressed.
Shifting the shift lever to any position other than P or N may lead to unexpected rapid
acceleration of the vehicle that may cause an accident and result in death or serious
injury.

2094-1. Before driving
4
Driving
RX450h_U_OM0E013U WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury. ■
If you hear a squealing or scraping noise (brake pad wear limit indicators)
Have the brake pads checked and replaced by your Lexus dealer as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or those
of the brake discs are exceeded. ■
When the vehicle is stopped ●
Do not depress the accelerator pedal unnecessarily.
If the shift lever is in any position other than P or N, the vehicle may accelerate sud-
denly and unexpectedly, causing an accident. ●
In order to prevent accidents due to the vehicle rolling away, always keep depressing
the brake pedal while stopped with the “R EADY” indicator is illuminated, and apply
the parking brake as necessary. ●
If the vehicle is stopped on an incline, in order to prevent accidents caused by the
vehicle rolling forward or backward, always depress the brake pedal and securely
apply the parking brake as needed. ●
Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause the exhaust
system to overheat, which could result in a fire if combustible material is nearby. ■
When the vehicle is parked ●
Do not leave glasses, cigarette lighters, sp ray cans, or soft drink cans in the vehicle
when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cause the plastic lenses and plastic mate-
rial of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the interior of the
vehicle, and may also cause a short circuit in the vehicle’s electrical components. ●
Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a place such as
the glove box or on the floor, it may be lit accidentally when luggage is loaded or the
seat is adjusted, causing a fire. ●
Do not attach adhesive discs to the windsh ield or windows. Do not place containers
such as air fresheners on the instrument panel or dashboard. Adhesive discs or con-
tainers may act as lenses, causing a fire in the vehicle. ●
Do not leave a door or window open if th e curved glass is coated with a metallized
film such as a silver-colored one. Reflected sunlight may cause the glass to act as a
lens, causing a fire. ●
Always shift the shift lever to P, apply the parking brake, stop the hybrid system and
lock the vehicle.
Do not leave the vehicle unattended wh ile the “READY” indicator is illuminated.●
Do not touch the exhaust pipes while the “R EADY” indicator is illuminated or imme-
diately after turning the hybrid system off.
Doing so may cause burns.

2214-1. Before driving
4
Driving
RX450h_U_OM0E013U ●
A recommended tongue weight varies in accordance with the types of trailers
or towing as described below. ●
To ensure the recommended values shown below, the trailer must be loaded
by referring to the following instructions.
•Tongue Weight
The gross trailer weight should be dist ributed so that the tongue weight is
9% to 11%.
(Tongue weight /Gross trailer weight x 100 = 9% to 11%)
Gross trailer weight
Tongue weight
The gross trailer weight, gross axle we ight and tongue we ight can be mea-
sured with platform scales found at a highway weighing station, building
supply company, trucking company, junk yard, etc.
Trailer hitch assemblies have different weight capacities. Lexus recommends the
use of Lexus hitch/bracket for your vehicle. For details, contact your Lexus
dealer. ●
If you wish to install a trailer hitch, contact your Lexus dealer. ●
Use only a hitch that conforms to the gross trailer weight requirement of your
vehicle. ●
Follow the directions supplied by the hitch manufacturer. ●
Lubricate the hitch ball with a light coating of grease. ●
Remove the trailer hitch whenever you are not towing a trailer. After removing
the hitch, seal any mounting hole in the vehicle body to prevent entry of any
substances into the vehicle.Trailer Tongue Weight 1
2
Hitch

2234-1. Before driving
4
Driving
RX450h_U_OM0E013U 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 fu nction stops the power flowing to the trailer
lights to prevent damage to th e vehicle’s electrical system.
This function is activated when the rated curren t 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/turn signal light does not come on, put the turn signal in the off posi-
tion 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 operate
normally.
If the lights do not operate normally, have the vehicle inspected by your Lexus dealer.Connecting trailer lights

224 4-1. Before driving
RX450h_U_OM0E013U Your vehicle will handle differently when towing a trailer. Help to avoid an acci-
dent, death or serious 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 vehicle-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 man-
ual, 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 con-
nections. 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 trailer attached is di fficult 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 guid e you when reversing to reduce the
risk of an accident. ●
As stopping distance is increased when towing a trailer, vehicle-to vehicle dis-
tance 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, re sulting in the traile r jackknifing and a
loss of vehicle control. This is especially true on wet or slippery surfaces. ●
Avoid jerky starts or sudden acceleration. ●
Avoid jerky steering and sharp turns, and slow down before making a turn. ●
Note that when making a turn, the traile r wheels will be closer than the vehicle
wheels to the inside of the turn. Comp ensate by making a wider than normal
turning radius. ●
Slow down before making a turn, in cross winds, on wet or slippery surfaces,
etc.
Increasing vehicle speed can destabilize the trailer. ●
Take care when passing other vehicles. Passing requires considerable dis-
tance. After passing a vehicle, do not forget the length of your trailer, and be
sure you have plenty of room before changing lanes.Trailer towing tips