headlights LEXUS RX350 2019 Owner's Manual

6317-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U ■
Front
Bulb locations
Front turn signal light (vehic les with single-beam headlights)
Front side marker light (vehic les with single-beam headlights)1
2

632 7-3. Do-it-yourself maintenance
RX350/RX350L_U ■
Rear
Back-up light
Rear turn signal light (vehicles with single-beam headlights) 1
2

6337-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U ■
Front side marker lights (vehicle s 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

6357-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U ■
Front turn signal lights (vehic les 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. 1
8 2
3

6377-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U ■
Rear turn signal lights (vehic les with single-beam headlights)
Open the back door and apply
protective tape to the vehicle
body around the taillight. Use masking tape, etc. Do not use
duct tape, as it may leave residue or
damage the paint when removed.
Using a flathead screwdriver,
remove the cover. To prevent scratching the vehicle,
wrap the tip of the flathead screw-
driver with a cloth, etc.
Remove the 2 screws. 1
2
3

6417-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U Install the cover. Align the tabs of the cover with the
grooves and install the cover.
■
Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by your Lexus
dealer. ●
Headlight low beams ●
Headlight high beams ●
Front turn signal lights (vehic les with triple-beam headlights)●
Parking lights and daytime running lights ●
Fog lights ●
Cornering lights (if equipped) ●
Front side marker lights (vehicles with triple-beam headlights) ●
Side turn signal lights ●
Stop/tail lights ●
Rear turn signal light (vehicles with triple-beam headlights) ●
Rear side marker lights ●
High mounted stoplight ●
License plate lights ●
Outer foot lights 5

642 7-3. Do-it-yourself maintenance
RX350/RX350L_U ■
LED lights
The headlight low beams, headlight high beams, front turn signal lights (vehicles with tri-
ple-beam headlights), parking lights and da ytime running lights, fog lights, cornering
lights (if equipped), front side marker lights (vehicles with triple-b eam headlights), side
turn signal lights, stop/tail lights, rear turn signal light (vehicles with triple-beam head-
lights), rear side marker lights, high mounted stoplight, license plate lights, and outer foot
lights consist of a number of LEDs. If any of the LEDs has burned out, take your vehicle to
your Lexus dealer to have the light replaced. ■
Condensation build-up on the inside of a lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact your Lexus dealer for mo re information in the following situations:●
Large drops of water have built up on the inside of a lens. ●
Water has built up inside a headlight. ■
When replacing light bulbs
 P. 626
WARNING ■
To prevent injury
Before performing any light bulb replacement procedure, be sure to turn the engine
switch off. Failure to do so may result in burns from hot components or a part of your
body may get caught on an operating co mponent, possibly causing serious injury.■
Replacing light bulbs ●
Turn off the lights. Do not attempt to replac e the bulb immediately after turning off the
lights.
The bulbs become very hot and may cause burns. ●
Do not touch the glass portion of the light bu lb with bare hands. When it is unavoid-
able to hold the glass portion, use and hold with a clean dry cloth to avoid getting
moisture and oils on the bulb.
Also, if the bulb is sc ratched or dropped, it may blow out or crack.●
Fully install light bulbs and any parts used to secure them. Failure to do so may result
in heat damage, fire, or water entering th e headlight unit. This may damage the head-
lights or cause condensation to build up on the lens.●
Do not attempt to repair or disassemble th e light bulbs, connector s, electric circuits
or component parts.
Doing so may result in death or se rious injury due to electric shock.■
To prevent damage or fire ●
Make sure bulbs are fully seated and locked. ●
Check the wattage of the bulb before installing to prevent heat damage.

682 8-2. Steps to take in an emergency
RX350/RX350L_U One of the following may be the cause of the problem: ●
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ●
The engine may be flooded.
Try to restart the engine again follo wing correct starting procedures.
(  P. 231)●
There may be a malfunction in th e engine immobilizer system. (  P. 74)
One of the following may be the cause of the problem: ●
The battery terminal connections may be loose or corroded. ●
The battery may be discharged. (  P. 687)
The engine starting system may be malfun ctioning due to an electrical problem
such as electronic key battery depletio n or a blown fuse. However, an interim
measure is available to start the engine. (  P. 683)If the engine will not start If the engine will not start even though correct starting procedures are being
followed (  P. 231), consider each of the following points:
The engine will not start even thoug h the starter motor operates nor-
mally.
The starter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
The starter motor does not turn over

6838-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U One of the following may be the cause of the problem: ●
One or both of the battery terminals may be disconnected. ●
The battery may be discharged. (  P. 687)●
There may be a malfunction in the steering lock system.Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the follo wing steps can be used as an interim
measure to start the engine if the engine switch is functioning normally.
T urn the engine switch to IGNITION ON mode and check that the parking
brake is set. (  P. 232, 247)
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal-
functioning. Have the vehicle in spected by your Lexus dealer.The starter motor does not turn ove r, the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function 1
2
3
4

6898-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U ■
Starting the engine when the battery is discharged
The engine cannot be started by push-starting. ■
To prevent battery discharge ●
Turn off the headlights and the audio system while the engine is off. ●
Turn off any unnecessary electrical componen ts when the vehicle is running at a low
speed for an extended period , such as in heavy traffic.■
When removing the battery terminals
When the battery terminals are removed, the information stored in the ECU is cleared.
Before removing the battery termin als, contact your Lexus dealer.■
Charging the battery
The electricity stored in the battery will disc harge gradually even when the vehicle is not
in use, due to natural discharge and the draini ng effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.) ■
When the battery is removed or discharged ●
In some cases, it may not be possible to un lock the doors using the smart access system
with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical key to lock or unlock the doors. ●
The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction. ●
The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery. ●
The power back door must be initialized. (  P. 138)■
When replacing the battery ●
Use a battery with the same case size as the previous battery and an equivalent 20
hour rate capacity (20HR) or greater.
• If the sizes differ, the battery cannot be properly secured.
• If the 20 hour rate capacity is low, even if the time period where the vehicle is not
used is a short time, the battery may discharge and the engine may not be able to
start. ●
For details, consult your Lexus dealer.