
1504-1. Before driving
LEXUS NX300 Owners Manual_USA_M78389_en
WARNING
■When the vehicle is parked
●Do not leave glasses, cigarette lighters, 
spray cans, or soft drink cans in the 
vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter  or spray can, and may lead to a fire.
• The temperature inside the vehicle  may cause the plastic lenses and plas-
tic material of glasses to deform or 
crack.
• Soft drink cans may fracture, causing  the contents to spray over the interior 
of the vehicle, and may also cause a 
short circuit in the  vehicle’s electrical 
components.
●Do not leave cigarette lighters in the 
vehicle. If a cigarette lighter is in a 
place such as the glove box or on the 
floor, it may be lit accidentally when 
luggage is loaded or the seat is 
adjusted, causing a fire.
●Do not attach adhesive discs to the 
windshield or windows. Do not place 
containers such as air fresheners on 
the instrument pane l or dashboard. 
Adhesive discs or containers may act 
as lenses, causing a fire in the vehicle.
●Do not leave a door or window open if 
the curved glass is coated with a met-
allized film such as a silver-colored 
one. Reflected sunlight may cause the 
glass to act as a lens, causing a fire.
●Always apply the parking brake, shift 
the shift lever to P, stop the engine and 
lock the vehicle.
Do not leave the vehicle unattended 
while the engine is running.
If the vehicle is parked with the shift 
lever in P but the parking brake is not 
set, the vehicle may start to move, pos-
sibly leading to an accident.
●Do not touch the exhaust pipes while 
the engine is running or immediately 
after turning the engine off.
Doing so may cause burns.
■When taking a nap in the vehicle
Always turn the engine off. Otherwise, if 
you accidentally move  the shift lever or 
depress the accelerator pedal, this could 
cause an accident or fire due to engine 
overheating. Additionally, if the vehicle is 
parked in a poorly ventilated area, 
exhaust gases may collect and enter the 
vehicle, leading to death or a serious 
health hazard.
■When braking
●When the brakes are wet, drive more 
cautiously.
Braking distance increases when the 
brakes are wet, and this may cause one 
side of the vehicle to brake differently 
than the other side. Also, the parking 
brake may not securely hold the vehi-
cle.
●If the brake booster device does not 
operate, do not follow other vehicles 
closely and avoid hills or sharp turns 
that require braking.
In this case, braking is still possible, but 
the brake pedal should be depressed 
more firmly than usual. Also, the brak-
ing distance will increase. Have your 
brakes fixed immediately.
●Do not pump the brake pedal if the 
engine stalls.
Each push on the brake pedal uses up 
the reserve for the power-assisted 
brakes.
●The brake system consists of 2 individ-
ual hydraulic systems; if one of the sys-
tems fails, the other w ill still operate. In 
this case, the brake pedal should be 
depressed more firmly than usual and 
the braking distance will increase. 
Have your brakes fixed immediately.
■If the vehicle becomes stuck (AWD 
models)
Do not spin the wheels excessively when 
any of the tires is up in the air, or the vehi-
cle is stuck in sand, mud, etc. This may 
damage the driveline components or 
propel the vehicle forward or backward, 
causing an accident. 

1514-1. Before driving
LEXUS NX300 Owners  Manual_USA_M78389_en
4
Driving
NOTICE
■When driving the vehicle
●Do not depress the accelerator and 
brake pedals at the same time during 
driving, as this may restrain the engine 
output.
●Do not use the accelerator pedal or 
depress the accelerator and brake 
pedals at the same time to hold the 
vehicle on a hill.
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in 
either direction and hold it there for an 
extended period of time.
Doing so may damage the power 
steering motor.
●When driving over bumps in the road, 
drive as slowly as possible to avoid 
damaging the wheels, underside of the 
vehicle, etc.
●Make sure to idle the engine immedi-
ately after high-speed driving or hill 
climbing. Stop the engine only after 
the turbocharger has cooled down.
Failure to do so may cause damage to 
the turbocharger.
■If you get a flat tire while driving
A flat or damaged ti re may cause the fol-
lowing situations.  Hold the steering 
wheel firmly and gradually depress the 
brake pedal to slow down the vehicle.
●It may be difficult to control your vehi-
cle.
●The vehicle will make abnormal 
sounds or vibrations.
●The vehicle will lean abnormally.
Information on what to do in case of a flat 
tire ( P.387)
■When encountering flooded roads
Do not drive on a road that has flooded 
after heavy rain, etc. Doing so may cause 
the following serious damage to the vehi-
cle:
●Engine stalling
●Short in electrical components
●Engine damage caused by water 
immersion
In the event that you drive on a flooded 
road and the vehicle is flooded, be sure 
to have your Lexus dealer check the fol-
lowing:
●Brake function
●Changes in quantity and quality of oil 
and fluid used for the engine, transmis-
sion, transfer (AWD vehicles), rear dif-
ferential (AWD vehicles), etc.
●Lubricant condition for the propeller 
shaft (AWD models), bearings and 
suspension joints (where possible), 
and the function of all joints, bearings, 
etc.
■When parking the vehicle
Always set the parking brake, and shift 
the shift lever to P. Failure to do so may 
cause the vehicle to move or the vehicle 
may accelerate suddenly if the accelera-
tor pedal is accidentally depressed. 

1624-1. Before driving
LEXUS NX300 Owners Manual_USA_M78389_en
prolonged turning. Have someone 
guide you when reversing to reduce 
the risk of an accident.
 As stopping distance is increased 
when towing a trailer, vehicle-to 
vehicle distance should be 
increased. For each 10 mph (16 
km/h) of speed, allow at least one 
vehicle and trailer length.
 Avoid sudden braking as you may 
skid, resulting in the trailer jackknif-
ing and a loss of vehicle control. This 
is especially true on wet or slippery 
surfaces.
 Avoid jerky starts or sudden accel-
eration.
 Avoid jerky steering and sharp 
turns, and slow down before making 
turn.
 Note that when making a turn, the 
trailer wheels will be closer than the 
vehicle wheels to the inside of the 
turn. Compensate by making a 
wider than normal turning radius.
 Slow down before making a turn, in 
cross winds, on wet or slippery sur-
faces, etc.
Increasing vehicle speed can desta-
bilize the trailer.
 Take care when passing other vehi-
cles. Passing requires considerable 
distance. After passing a vehicle, do 
not forget the length  of your trailer, 
and be sure you have plenty of room 
before changing lanes.
 To maintain engine braking effi-
ciency and charging system perfor-
mance when using engine braking,  do not put the transmission in D. If in 
the M mode, the transmission shift 
range position must be in 4 or lower. 
(
P.168)
 Instability happens more frequently 
when descending steep or long 
downhill grades. Before descend-
ing, slow down and downshift. Do 
not make sudden downshifts while 
descending steep or long downhill 
grades.
 Avoid holding the brake pedal down 
too long or applying the brakes too 
frequently. This could cause the 
brakes to overheat and result in 
reduced braking efficiency.
 Due to the added load of the trailer, 
your vehicle’s engine may overheat 
on hot days (at temperatures over 
85°F [30°C]) when driving up a 
long or steep grade. If the engine 
coolant temperature gauge indi-
cates overheating, immediately turn 
off the air conditioning (if in use), 
pull your vehicle off the road and 
stop in a safe spot. ( P.403)
 Always place wheel blocks under 
both the vehicle’s and the trailer’s 
wheels when parking. Put the trans-
mission in P and apply the parking 
brake. Avoid parking on a slope, but 
if unavoidable, do so only after per-
forming the following:
1 Apply the brakes and keep them 
applied.
2 Have someone place wheel blocks 
under both the vehicle’s and trailer’s 
wheels. 

1634-1. Before driving
LEXUS NX300 Owners  Manual_USA_M78389_en
4
Driving
3When the wheel blocks are in 
place, release the brakes slowly 
until the blocks absorb the load.
4 Shift into P and apply the parking 
brake.
5 Turn off the engine.
 When restarting after parking on a 
slope:
1 With the transmission in P, start the 
engine. Be sure to keep the brake 
pedal depressed.
2 Shift into a forward gear. If revers-
ing, shift into R.
3 If the parking brake is in manual 
mode, release the parking brake. 
(P.173)
4 Release the brake pedal, and slowly 
pull or back away from the wheel 
blocks. Stop and apply the brakes.
5 Have someone retrieve the blocks.Trailer towing (vehicles with-
out towing package)
Lexus does not recommend towing 
a trailer with your vehicle. Lexus 
also does not recommend the 
installation of a tow hitch or the use 
of a tow hitch carrier for a wheel-
chair, scooter, bicycle, etc. Your 
vehicle is not desi gned for trailer 
towing or for the use of tow hitch 
mounted carriers. 

1654-2. Driving procedures
LEXUS NX300 Owners  Manual_USA_M78389_en
4
Driving
4-2.Driving procedures
1Check that the parking brake is set.
2 Check that the shift lever is in P.
3 Firmly depress the brake pedal.
 and a message will be displayed on the 
multi-information display.
If it is not displayed, the engine cannot be 
started.
4 Press the engine switch shortly and 
firmly.
When operating the engine switch, one 
short, firm press is enough.
It is not necessary to press and hold the 
switch.
The engine will crank until it starts or for up 
to 30 seconds, whichever is less.
Continue depressing the brake pedal until 
the engine is completely started.
The engine can be started from any engine 
switch mode.
■If the engine does not start
●The engine immobilizer system may not 
have been deactivated. ( P.68) Contact your Lexus dealer.
●Check that the shift leve
r is securely set in 
P. The engine may not start if the shift 
lever is displaced out of P. “To Start Vehi-
cle, Put Shift Lever into P” will be dis-
played on the multi-information display.
●The smart access system with push-but-
ton start may not be operating properly. 
(  P.398)
■Electronic key battery depletion
 P.96
■Conditions affecting operation
 P.118
■Note for the entry function
 P.118
■Steering lock function
●After turning the engine switch off and 
opening and closing the doors, the steer-
ing wheel will be lock ed due to the steer-
ing lock function. Operating the engine 
switch again automatically cancels the 
steering lock.
●When the steering lock cannot be 
released, “Steering Wheel Lock Press 
Engine Switch while  Turning Wheel” will 
be displayed on the  multi-information dis-
play.
Check that the shift lever is in P. Press the 
engine switch while turning the steering 
wheel left and right.
●To prevent the steering lock motor from 
overheating, operation of the motor may 
be suspended if the engine is turned on 
and off repeatedly in a short period of 
time. In this case, refrain from running the 
engine. After about 10 seconds, the 
steering lock motor will resume function-
ing.
Engine (ignition) switch
Performing the following opera-
tions when carryin g the electronic 
key on your person starts the 
engine or changes engine switch 
modes.
Starting the engine 

1664-2. Driving procedures
LEXUS NX300 Owners Manual_USA_M78389_en
■If “Smart Access System Malfunction 
See Owner’s Manual” is displayed on 
the multi-information display
The system may be malfunctioning. Have 
the vehicle inspected by your Lexus dealer 
immediately.
■Electronic key battery
 P.356
■Operation of the engine switch
●If the switch is not pressed shortly and 
firmly, the engine switch mode may not 
change or the engine may not start.
●If attempting to restart the engine imme-
diately after turning the engine switch off, 
the engine may not start in some cases. 
After turning the engine switch off, please 
wait a few seconds before restarting the 
engine.
■If the smart access system with push-
button start has been deactivated by a 
customized setting
 P.427
1Stop the vehicle completely.
2
Set the parking brake ( P.173), 
and shift the shift lever to P 
( P.168).
3
Press the engine switch.
4
Release the brake pedal and check 
that the display on the instrument 
cluster is off.
Modes can be changed by pressing 
the engine switch with brake pedal 
WARNING
■When starting the engine
Always start the engine while sitting in 
the driver’s seat. Do not depress the 
accelerator pedal while starting the 
engine under any circumstances.
Doing so may cause an accident result-
ing in death or serious injury.
■Caution while driving
If engine failure occurs while the vehicle 
is moving, do not lock or open the doors 
until the vehicle reaches a safe and com-
plete stop. The steering lock function will 
activate and this may lead to an accident, 
resulting in death or serious injury.
NOTICE
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start 
or stalls frequently, have your vehicle 
checked by your Lexus dealer immedi-
ately.
■Symptoms indicating a malfunction 
with the engine switch
If the engine switch seems to be operat-
ing somewhat differently than usual, such 
as the switch sticking slightly, there may 
be a malfunction. Contact your Lexus 
dealer immediately.
Stopping the engine
WARNING
■Stopping the engine in an emergency
If you want to stop th e engine in an emer-
gency while driving the vehicle, press 
and hold the engine switch for more than 
2 seconds, or press it briefly 3 times or 
more in succession. ( P.366)
However, do not touch the engine switch 
while driving except  in an emergency. 
Turning the engine off while driving will 
not cause loss of steering or braking con-
trol, but the power assist to these systems 
will be lost. This will make it more difficult 
to steer and brake, so you should pull 
over and stop the vehicle as soon as it is 
safe to do so.
Changing engine switch modes 

1674-2. Driving procedures
LEXUS NX300 Owners  Manual_USA_M78389_en
4
Driving
released. (The mode changes each 
time the switch is pressed.)
1
Off*
The emergency flashers can be used.
2ACCESSORY mode
Some electrical components such as the 
audio system can be used.
“ACCESSORY” will be displayed on the 
multi-information display.
3IGNITION ON mode
All electrical components can be used. 
“IGNITION ON” will be displayed on the 
multi-information display.
*: If the shift lever is in a position other than 
P when turning off the engine, the 
engine switch will be turned to ACCES-
SORY mode, not to off.
■Auto power off function
If the vehicle is left in ACCESSORY mode 
for more than 20 minutes or IGNITION 
ON mode (the engine is not running) for 
more than an hour with the shift lever in P, 
the engine switch will automatically turn off. 
However, this function cannot entirely pre- vent battery discharge. Do not leave the 
vehicle with the engine switch in ACCES-
SORY or IGNITION ON mode for long 
periods of time when the engine is not run-
ning.
■When stopping the engine with the shift 
lever in a position other than P
If the engine is stopped with the shift lever in 
a position other than P, the engine switch 
will not be turned off but instead be turned 
to ACCESSORY mode. Perform the fol-
lowing procedure to turn the switch off:
1
Check that the parking brake is set.
2
Shift the shift lever to P.
3
Check that “Turn Off Vehicle” is dis-
played on the multi-information display 
and then press the engine switch once.
4
Check that “Turn Off Vehicle” on the 
multi-information display is off.
NOTICE
■To prevent battery discharge
●Do not leave the engine switch in 
ACCESSORY or IGNITION ON 
mode for long periods of time without 
the engine running.
●If “ACCESSORY” or “IGNITION 
ON” is displayed on the multi-informa-
tion display while the engine is not run-
ning, the engine switch is not off. Exit 
the vehicle after turning the engine 
switch off.
●Do not stop the engine when the shift 
lever is in a position other than P. If the 
engine is stopped in another shift lever 
position, the engine switch will not be 
turned off but instead be turned to 
ACCESSORY mode. If the vehicle is 
left in ACCESSORY mode, battery 
discharge may occur. 

1684-2. Driving procedures
LEXUS NX300 Owners Manual_USA_M78389_en
*1: To improve fuel efficiency and reduce 
noise, shift the shift lever to D for normal 
driving.
You can choose gear range suitable for 
your driving situation by operating the 
paddle shift switches.
*2: Any gear range can be fixed when driv-ing in M mode.
■To protect the automatic transmission
“Transmission Fluid Temp High See 
Owner’s Manual” is di splayed on the multi-
information display and a function is 
adopted that automatically selects a higher 
shift range when the fluid temperature is 
high. Have the vehicle inspected by your 
Lexus dealer.
■When driving with dynamic radar cruise 
control with full-speed range activated
Even when performing the following 
actions with the intent of enabling engine 
braking, engine braking will not activate 
because dynamic radar  cruise control with 
full-speed range will not be canceled.
●While driving in D position, downshifting 
to 5 or 4. ( P.170)
●When switching the driving mode to 
Sport mode while driving in D position. 
( P.258)
■Restraining sudden start (Drive-Start 
Control)
When the following unusual operation is 
performed, the engine output may be 
restrained.
●When the shift lever is shifted from R to D, 
D to R, N to R, P to D, or P to R (D 
includes M) with the accelerator pedal 
depressed, a warning message appears 
on the multi-information display. If a 
warning message is shown on the multi-
information display, read the message 
and follow the instructions.
●When the accelerator pedal is depressed 
too much while the vehicle is in reverse.
■If the “M” indicator do es not come on or 
the “D” indicator is displayed even after 
shifting the shift lever to M
This may indicate a malfunction in the auto-
matic transmission system. Have the vehicle 
inspected by your Lexus dealer. (In this situ-
ation, the transmission  will operate in the 
same)
■AI-SHIFT
●The AI-SHIFT automatically selects the 
suitable gear according to driver perfor-
mance and driving conditions.
The AI-SHIFT automatically operates 
when the driving mode  select switch is 
set to Normal mode with the shift lever in 
the D position. (The function will be can-
celed, if the driving mo de select switch is 
set to Sport mode or shift lever is put in 
the M position.)
●The G AI-SHIFT is automatically 
changed to a suitable gear step while 
running in Sport mode according to the 
driving operations and running condi-
tions.
The G AI-SHIFT automatically operates 
when the driving mode  select switch is 
set to Sport mode with the shift lever in 
the D position. (The function will be can-
celed, if the driving mo de is select switch 
is set to Normal mode or shift lever is put 
Automatic transmission
Select the shift position depending 
on your purpose and situation.
Shift position purpose and func-
tions
Shift posi-
tionObjective or function
PParking the vehicle/starting  the engine
RReversing
NNeutral
DNormal driving*1
MM mode driving*2 ( P.170)