Page 510 of 660

510 6-3. Do-it-yourself maintenance
RX450h_U_OM0E013U ■
After a fuse is replaced ●
If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. ( P. 5 1 3 )●
If the replaced fuse blows again, have the vehicle inspected by your Lexus dealer. ■
If there is an overload in a circuit
The fuses are designed to blow, protec ting the wiring harness from damage.■
When replacing light bulbs
Lexus recommends that you use genuine Lexu s products designed for this vehicle.
Because certain bulbs are connected to circui ts designed to prevent overload, nongenu-
ine parts or parts not designed for this vehicle may be unusable.
WA R N I N G ■
To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or injury.●
Never use a fuse of a higher amperage rati ng than that indicated, or use any other
object in place of a fuse. ●
Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix. ●
Do not modify the fuses or fuse boxes. ■
Fuse box near the power control unit
Never check or replace the fu ses as there are high voltage parts and wiring near the
fuse box.
Doing so may cause electric shock, re sulting in death or serious injury.
NOTICE ■
Before replacing fuses
Have the cause of electrical overload determ ined and repaired by your Lexus dealer as
soon as possible.
Page 511 of 660
5116-3. Do-it-yourself maintenance
6
Maintenance and care
RX450h_U_OM0E013U Adjustment bolt A
Adjustment bolt B
Make sure the vehicle has a full tank of gasoline and the area around the
headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.Headlight aim (vehicles with single-beam head-
lights) Vertical movement adjusting bolts 1
2
Before checking the headlight aim 1
2
3
4
Page 512 of 660
512 6-3. Do-it-yourself maintenance
RX450h_U_OM0E013U Using a Phillips-head screwdriver,
turn bolt A in either direction. Remember the turning direction and the
number of turns.
Turn bolt B the same number of turns
and in the same direction as step . If the headlight cannot be adjusted using
this procedure, take the vehicle to your
Lexus dealer to adjust the headlight aim.Adjusting the headlight aim 1
2
1
Page 513 of 660
5136-3. Do-it-yourself maintenance
6
Maintenance and care
RX450h_U_OM0E013U Check the wattage of the light bulb to be replaced. ( P. 5 9 0 )
P. 1 4 6Light bulbs You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems diffi-
cult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
Preparing for light bulb replacement
Canceling the power back door system
Page 514 of 660
514 6-3. Do-it-yourself maintenance
RX450h_U_OM0E013U ■
Front
Bulb locations
Front turn signal light (vehicles with single-beam headlights)
Front side marker light (vehicles with single-beam headlights) 1
2
Page 515 of 660
5156-3. Do-it-yourself maintenance
6
Maintenance and care
RX450h_U_OM0E013U ■
Rear
Back-up light
Rear turn signal light (vehic les with single-beam headlights)1
2
Page 516 of 660
516 6-3. Do-it-yourself maintenance
RX450h_U_OM0E013U ■
Front side marker lights (vehicles with single-beam headlights)
To ensure enough space to per-
form work, turn the steering
wheel to rotate the front wheel
away from the bulb to be
replaced.
Remove the 3 fender liner clips. Turn the steering wheel to the left
when replacing the right side light
bulb, and turn the steering wheel to
the right when replacing the left side
light bulb.
When removing a fender liner clip,
use a flathead screwdriver to pry the
center portion out and then remove
the whole clip.
Pull back the fender liner until the
connector is visible.
Partially remove the fender liner
and turn the bulb base counter-
clockwise and remove it.Replacing light bulbs 1
8 2
3
Page 517 of 660
5176-3. Do-it-yourself maintenance
6
Maintenance and care
RX450h_U_OM0E013U Remove the light bulb.
Install a new light bulb and then
install the bulb base to the light
unit by inserting it and turning it
clockwise. After installing the bulb base, wiggle
it lightly to make sure it is securely
installed and turn the lights on to
visually check that there is no light
leaking from between the bulb base
and light unit.
Reinstall the fender liner and
install the 3 fender liner clips. 4
5
6