Page 545 of 680
5457-3. Do-it-yourself maintenance
7
Maintenance and care
NX300h_OM_USA_OM78082U
■Front side marker light (bulb type)Turn the bulb base counterclock-
wise.
Remove the light bulb.
When installing, reverse the steps listed.
■Front turn signal lights (bulb type)Open the hood and remove the cover for engine compartment cover.
( P. 500, 503)
Remove the cover. Push the center of the clip.
Remove the clip and cover.
Turn the bulb base counterclock-
wise.
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Page 594 of 680
5948-2. Steps to take in an emergency
NX300h_OM_USA_OM78082U
If the 12-volt battery is discharged
If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt
battery, you can jump start your vehicle by following the steps below.
Confirm that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the situa-
tion, the alarm may activate and the
doors may lock. ( P. 8 9 )
Open the hood ( P. 5 0 0 ) a n d f u s e
box cover.
Open the exclusive jump starting
terminal cover.
The following procedures may be used to start the hybrid system if the vehi-
cle’s 12-volt battery is discharged.
You can also call your Lexus dealer or a qualified repair shop.
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Page 602 of 680

6028-2. Steps to take in an emergency
NX300h_OM_USA_OM78082U
Start the hybrid system and check if “Hybrid System Overheated” is shown
on the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact your Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer.
WA R N I N G
■To prevent an accident or injury when in specting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the h ood, do not open the hood until the steam
has subsided. The engine compartment may be very hot.
●After the hybrid system has been turned off, check that the “READY” indicator is off.
When the hybrid system is operating, the gasoline engine may automatically start, or
the cooling fan may suddenly operate even if the gasoline engine stops. Do not touch
or approach rotating parts such as the fa n, which may lead to fingers or clothing
(especially a tie, a scarf or a muffler) ge tting caught, resulting in serious injury.
●Do not loosen the coolant reservoir cap while the hybrid system and radiator are hot.
High temperature steam or coolant could spray out.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently. Adding cool
coolant to a hot hybrid system too quickly can cause damage to the hybrid system.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additive.
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Page 671 of 680

671Alphabetical index
NX300h_OM_USA_OM78082U
Odometer ...................................................97
OilEngine oil............................................... 609
Rear differential oil .............................. 612
Opener Back door ............................................... 130
Fuel filler door ......................................236
Hood ....................................................... 500
Outside rear view mirrors ..................163 Adjusting and folding........................ 163
Blind Spot Monitor (BSM)............. 316
Linked mirror function when reversing ................................. 164
Mirror position memory .................. 154
Outside rear view mirror defoggers ...........................................435
Outside temperature display ..............97
Overheating ........................................... 599 Panic mode ................................................ 119
Parking brake
Operation................................................ 213
Parking brake engaged warning buzzer/message ........... 215
Warning light .......................................566
Parking lights Light switch............................................. 219
Replacing light bulbs ....................... 552
PCS (Pre-Collision System) Function ................................................... 310
PCS switch ...............................................311
Warning light .......................................566
Warning message............................. 572
Personal lights ........................................443 Switch ...................................................... 444
Power back door opener and closer ....................................................... 129
Power control unit coolant Capacity .................................................... 611
Checking .............................................. 508
Preparing and checking before winter .................................... 326
Radiator ................................................. 509
OP
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.
Page 680 of 680
680
NX300h_OM_USA_OM78082UGAS STATION INFORMATION
*: Vehicles with a power back door
Auxiliary catch leverBack door opener switch*Fuel filler door
P. 5 0 0 P. 1 3 0 P. 2 3 7
Hood lock release leverTire inflation pressure
P. 5 0 0 P. 6 1 3
Fuel tank capacity
(Reference) 14.8 gal. (56 L, 12.3 Imp.gal.)
Fuel type
Unleaded gasoline only P. 608
Cold tire inflation
pressure P. 6 1 3
Engine oil capacity
(Drain and refill —
reference)With filter
Without filter 4.6 qt. (4.4 L, 3.9 Imp.qt.)
4.2 qt. (4.0 L, 3.5 Imp.qt.)
Engine oil type“Toyota Genuine Motor Oil” or equivalent
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
P. 6 1 0