
6008-2. Steps to take in an emergency
NX300h_OM_USA_OM78082U
The coolant level is satisfactory if it is between the “FULL” and “LOW” lines
on the reservoir.Reservoir
“FULL” line
“LOW” line
Add coolant if necessary.
Water can be used in an emergency
if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to check
that the radiator cooling fans operate and to check for coolant leaks from
the radiator or hoses.
The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are op erating by checking the fan sound and air
flow. If it is difficult to check these, tu rn the air conditioning system on and off
repeatedly. (The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immediately and contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
Check if “Engine Coolant Temp High” 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.
4
1
2
3
5
6
7
8

6379-2. Customization
9
Vehicle specifications
NX300h_OM_USA_OM78082U
■Automatic air conditioning system (P. 4 3 0 )
■Eco drive mode ( P. 3 0 3 )
■Powe r w i n d ow s ( P. 166)
■Moon roof*1 ( P. 1 6 9 )
*1:If equipped
*2: This function cannot be customized unless power window operations, using the wire-
less remote control or mechanical key, is enabled.
FunctionDefault settingCustomized setting
Switching between outside air
and recirculated air mode
linked to “AUTO” switch
operation
OnOffO–O–
A/C Auto switch operationOnOffO–O–
1234
FunctionDefault settingCustomized setting
Heating/cooling operation
minimized in Eco drive modeOnOff––O–
1234
FunctionDefault settingCustomized setting
Mechanical key linked opera-
tionOffOn––O–
Wireless remote control
linked open operationOffOn––O–
1234
FunctionDefault
settingCustomized setting
Mechanical key linked opera-
tion
*2OffOn––O–
Wireless remote control
linked open or Tilt up opera-
tions
*2OffOn––O–
1234

660Alphabetical index
NX300h_OM_USA_OM78082U
Alphabetical index
A/C ............................................................ 430Air conditioning filter....................... 530
Automatic air conditioning system ................................................. 430
Micro dust and pollen filter ...........436
ABS (Anti-lock Brake System).......305 Function ................................................. 305
Warning light ...................................... 566
Active Sound Control (ASC) .......... 218
Air conditioning filter ..........................530
Air conditioning system ..................... 430 Air conditioning filter....................... 530
Automatic air conditioning system ................................................. 430
Micro dust and pollen filter ...........436
S-FLOW mode .................................. 432
Airbags ........................................................ 40 Airbag operating conditions ...........48
Airbag precautions for your child .......................................................... 43
Airbag warning light ........................ 566
Correct driving posture ....................30
Curtain shield airbag operating conditions........................48
Curtain shield airbag precautions ........................................... 46
Front passenger occupant classification system ......................... 53
General airbag precautions............ 43 Locations of airbags............................ 40
Modification and disposal of
airbags .....................................................47
Seat cushion airbag ............................. 40
Side airbag operating conditions ............................................. 48
Side airbag precautions .................... 45
Side and curtain shield airbags operating conditions ....................... 48
Side and curtain shield airbags precautions .......................................... 46
SRS airbag instructions for Canadian owners ................... 647
SRS airbags ............................................. 40
Alarm ........................................................... 88 Alarm ..........................................................88
Warning buzzer.................................569
Anchor brackets................................ 71, 73
Antenna Radio ........................................................ 364
Smart access system with push-button start....................140
Anti-lock brake system (ABS)........ 305 Function ..................................................305
Warning light .......................................566
Approach warning ................... 245, 259
Armrest .................................................... 465
ASC (Active Sound Control) ........... 218
Assist grips .............................................. 465
A

661Alphabetical index
NX300h_OM_USA_OM78082U
Audio system (with navigation system)
*
Audio system.......................................... 336 Antenna ..................................................364
Audio input............................................345
AUX port...............................................345
Bluetooth
® audio ............................. 390
CD player .............................................. 367
iPod ........................................................... 374
MP3/WMA disc ...............................367
Optimal use ..........................................354
Portable music player ....................... 381
Radio ......................................................... 361
Setup menu ........................................... 347
Steering wheel audio switches ............................................... 342
USB memory ....................................... 377
Automatic air conditioning system Air conditioning filter....................... 530
Automatic air conditioning system ................................................. 430
Micro dust and pollen filter ...........436
S-FLOW mode .................................. 432
Automatic headlight leveling system ...................................................... 221
Automatic High Beam ....................... 223
Automatic light control system......... 221
AUX port................................................. 345 Back door .................................................. 129
Wireless remote control.................. 129
Back-up lights Replacing light bulbs ...................... 550
Wattage ...................................................615
Battery (12-volt battery) If the 12-volt battery is discharged......................................... 594
Preparing and checking before winter.................................................... 326
Warning light .......................................565
Battery (traction battery) ....................... 81
Bluetooth
®............................................... 413
Audio system .......................................390
Hands-free system (for cellular phone) ....................... 392
Bottle holders ........................................ 448
Brake Brake Hold ............................................. 216
Fluid ............................................................ 612
Parking brake ........................................ 213
Regenerative braking ..........................79
Warning light .......................................565
Brake assist ............................................. 305
Brake Hold................................................ 216
Break-in tips ............................................. 176
Brightness control Instrument panel light control..................................................... 99
BSM (Blind Spot Monitor) ................. 316 Blind Spot Monitor function...........319
Rear Cross Traffic Alert function.................................................. 321
B
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

667Alphabetical index
NX300h_OM_USA_OM78082U
Hands-free system (for cellular phone) ........................... 392
Head restraints ....................................... 158
Headlights .................................................219 Automatic headlight leveling .........221
Automatic High Beam .................... 223
Light switch ............................................ 219
Replacing light bulbs ............. 541, 552
Wattage ................................................... 615
Head-up display..................................... 106
Heated steering wheel .........................441
Heaters Automatic air conditioning system ................................................. 430
Heated steering wheel ................... 440
Outside rear view mirrors .............435
Seat heaters ......................................... 440
High mounted stoplight Replacing .............................................. 552
Hill-start assist control ........................305
Hood ..........................................................500 Warning message .................. 128, 572
Hooks Cargo hooks ....................................... 450
Retaining hooks (floor mat) ............. 28
Horn ............................................................ 160 Hybrid battery (traction battery)
Location ......................................................81
Specification ........................................ 609
Hybrid battery air vent .......................... 82
Hybrid system............................................ 77 Emergency shut off system ............. 82
Energy monitor/consumption screen.......................... 111
EV drive mode ................................... 206
High voltage components .................81
Hybrid System Indicator ................. 100
Hybrid system precautions ...............81
Hybrid vehicle driving tips ............ 324
If the hybrid system will not start....................................................... 588
Overheating.........................................599
Power switch .........................................201
Regenerative braking ..........................79
Starting the hybrid system...............201
Vehicle proximity notification system ..................................................... 78
Hybrid System Indicator .................... 100
Hybrid transmission ............................ 208
H