LEXUS NX300h 2018 Owners Manual

3516-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 6
Maintenance and care 
Type A
Adjustment bolt A
Adjustment bolt B 
Type B
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.
 Make sure the tire inflation pressure WARNING●
Do not modify the fuses or fuse boxes.■
Fuse box near the power control unit
Never check or replace the fuses as
there are high voltage parts and wiring
near the fuse box.
Doing so may cause electric shock,
resulting in death or serious injury.
NOTICE■
Before replacing fuses
Have the cause of electrical overload
determined and repaired by your Lexus
dealer as soon as possible. Headlight aim
Vertical movement adjusting
bolts
Before checking the headlight
aim A
B
A
B

352 6-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U is at the specified level.
 Have someone sit in the driver’s
seat.
 Bounce the vehicle several times.
1 Using a Phillips-head screwdriver,
turn bolt A in either direction.
Remember the turning direction
and the number of turns. 
Type A 
Type B
2 Turn bolt B the same number of
turns and in the same direction as
step 1 .If the headlight cannot be adjusted using
this procedure, take the vehicle to your
Lexus dealer to adjust the headlight aim. 
Type A 
Type BAdjusting the headlight aim

3536-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
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Maintenance and care
→ P.328
Front side marker light (bulb type)
Front turn signal light (bulb type) ■
Bulbs that need to be replaced by
the Lexus dealer
 Headlights
 Front turn signal lights (LED type)
 Parking lights and Daytime running
lights
 Front fog lights
 Front side marker lights (LED type)
 Side turn signal lights
 Stop/tail lights
 Rear side marker lights
 Back-up light
 Rear turn signal light
 High mounted stoplight
 License plate lights
 Outer foot lights ■
LED lights
The lights other than the front side marker
lights (bulb type) and front turn signal lights
(bulb type) each consist of a number of
LEDs. If any of the LEDs burn out, take your
vehicle to your Lexus dealer to have the
light replaced. ■
Condensation build-up on the inside of
the lens
Temporary condensation build-up on the
inside of the headlight lens does not indi-
cate a malfunction. Contact your Lexus
dealer for more information in the following
situations:
●
Large drops of water have built up on the
inside of the lens.
●
Water has built up inside the headlight.
■
When replacing light bulbs
→ P.407Light bulbs You may replace the following bulbs
by yourself.
The difficulty level of replacement
varies depending on the bulb. If
necessary bulb replacement seems
difficult to perform, contact your
Lexus dealer.
For more information about replac-
ing other light bulbs, contact your
Lexus dealer.
Removing the engine compart-
ment cover
Bulb locations
A
B

354 6-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U Before replacing, check the wattage of
the light bulb to be replaced.
( → P.407) ■
Front side marker lights (bulb type)
1 Turn the bulb base counterclock-
wise.
2 Remove the light bulb.
3 When installing, reverse the steps
listed. ■
Front turn signal lights (bulb type)
1 Open the hood and remove the
cover for engine compartment
cover. ( → P.325, 328) 2 Remove the cover.
Push the center of the clip.
Remove the clip and cover.
3 Turn the bulb base counterclock-
wise.
4 Remove the light bulb.Replacing light bulbs
A
B

3556-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
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Maintenance and care 5 Replace the light bulb.
6 Turn clockwise and set the bulb
base.
7 Attach the clip to the cover.
Push up on the center of the clip.
Attach the clip. 8 Attach the cover.
Align the 2 tabs positions and close
the cover.
Fix the cover by pushing the center
of the clip.
9 Install the engine compartment
cover. ( → P.328)
A
B WARNING■
Replacing light bulbs ●
Be sure to stop the hybrid system and
turn off the lights. Do not attempt to
replace 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 bulb with bare hands. When it is
unavoidable 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 scratched 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 the he adlight unit. This
may damage the headlights or cause
condensation to build up on the lens.
●
Do not attempt to repair or disassem-
ble light bulbs, connectors, electric cir-
cuits or component parts.
Doing so may result in death or serious
injury due to electric shock. A
B

356 6-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U WARNING■
To prevent damage or fire●
Make sure bulbs are fully seated and
locked.●
Check the wattage of the bulb before
installing to prev ent heat damage.

357
LEXUS NX300h Owners Manu-
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When trouble arises When trouble arises7-1. Essential information
Emergency flashers.................. 358
If your vehicle has to be stopped in
an emergency .......................... 358
7-2. Steps to take in an emergency
If your vehicle needs to be towed
........................................................ 360
If you think something is wrong
........................................................ 363
If a warning light turns on or a
warning buzzer sounds ....... 365
If a warning message is displayed
........................................................ 374
If you have a flat tire.................. 377
If the hybrid system will not start
........................................................ 385
If you lose your keys ................. 386
If the fuel filler door cannot be
opened........................................ 387
If the electronic key does not
operate properly .................... 387
If the 12-volt battery is discharged
........................................................ 390
If your vehicle overheats ........ 394
If the vehicle becomes stuck 397

358 7-1. Essential information
LEXUS NX300h Owners Manu-
al_USA_OM78212U 7-1.Essential information
Press the switch. All the turn signal lights will flash. To turn
them off, press the switch once again.
■
Emergency flashers
If the emergency flashers are used for a
long time while the hybrid system is not
operating (while the “READY” indicator is
not illuminated), the 12-volt battery may dis-
charge. 1 Steadily step on the brake pedal
with both feet and firmly depress it. Do not pump the brake pedal repeatedly
as this will increase the effort required to
slow the vehicle.
2 Shift the shift lever to N. 
If the shift lever is shifted to N
3 After slowing down, stop the vehi-
cle in a safe place by the road.
4 Stop the hybrid system. 
If the shift lever cannot be shifted to
N
3 Keep depressing the brake pedal
with both feet to reduce vehicle
speed as much as possible.
4 To stop the hybrid system, press
and hold the power switch for 2
consecutive seconds or more, or Emergency flashers The emergency flashers are used to
warn other drivers when the vehicle
has to be stopped in the road due to
a breakdown, etc.
Operating instructions If your vehicle has to be
stopped in an emergency Only in an emergency, such as if it
becomes impossible to stop the
vehicle in the normal way, stop the
vehicle using the following proce-
dure:
Stopping the vehicle

3597-1. Essential information
LEXUS NX300h Owners Manu-
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When trouble arises press it briefly 3 times or more in
succession.
5 Stop the vehicle in a safe place by
the road. WARNING■
If the hybrid system has to be turned
off while driving
Power assist for the steering wheel will
be lost, making th e steering wheel
heavier to turn. Decelerate as much as
possible before turning off the hybrid sys-
tem.

360 7-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U 7-2.Steps to take in an emergency
If your vehicle needs to be
towed If towing is ne cessary, we recom-
mend having your vehicle towed by
your Lexus dealer or commercial
towing service, using a wheel-lift
type truck or flatbed truck.
Use a safety chain system for all
towing, and abide by all state/pro-
vincial and local laws.
If towing your vehicle with a wheel-
lift type truck, use a towing dolly.
( → P.361, 360) WARNING
Observe the following precautions.
Failure to do so may result in death or
serious injury. ■
When towing the vehicle
Be sure to transport the vehicle with all
four wheels raised off the ground. If the
vehicle is towed with the tires contacting
the ground, the drivetrain or related
parts may be damaged, the vehicle may
fly off the truck, or electricity generated
by the operation of the motor may cause
a fire to occur depending on the nature
of the damage or malfunction. ■
While towing ●
When towing using a cables or chains,
avoid sudden starts, etc. which place
excessive stress on the towing eyelets,
cables or chains. The towing eyelets,
cables or chains may become dam-
aged, broken debris may hit people,
and cause serious damage. ●
Do not turn the power switch off.
There is a possibility that the steering
wheel is locked and cannot be oper-
ated. ■
Installing towing eyelets to the vehi-
cle
Make sure that towing eyelets are
installed securely.
If not securely installed, towing eyelets
may come loose during towing.
NOTICE■
To prevent damage to the vehicle
when towing using a wheel-lift type
truck ●
Do not tow the vehicle from the rear
when the power switch is off. The
steering lock mechanism is not strong
enough to hold the front wheels
straight.
●
When raising the vehicle, ensure ade-
quate ground clearance for towing at
the opposite end of the raised vehicle.
Without adequate clearance, the vehi-
cle could be damaged while being
towed.
■
To prevent damage to the vehicle
when towing with a sling-type truck
Do not tow with a sling-type truck, either
from the front or rear.