1964-1. Before driving
NX300h_OM_USA_OM78082U
■Break-in schedule
If your vehicle is new or equipped with any new power train components (such as an
engine, transmission, differential or wheel bearing), Lexus recommends that you do not
tow a trailer until the vehicle has been driven for over 500 miles (800 km).
After the vehicle has been driven for over 500 miles (800 km), you can start towing.
However, for the next 500 miles (800 km), drive the vehicle at a speed of less than
50 mph (80 km/h) when towing a trailer, and avoid full throttle acceleration.
■Maintenance
●If you tow a trailer, your vehicle will require more frequent maintenance due to the addi-
tional load. (See “Warranty and Services Guide”, “Owner’s Manual Supplement” or
“Scheduled Maintenance”.)
●Retighten the fixing bolts of the towing ba ll and bracket after approximately 600 miles
(1000 km) of trailer towing.
■If trailer sway occurs
One or more factors (crosswinds, passing vehicles, rough roads, etc.) can adversely
affect handling of your vehicle and trailer, causing instability.
●If trailer swaying occurs:
• Firmly grip the steering wheel. Steer straight ahead.
Do not try to control trailer sway ing by turning the steering wheel.
• Begin releasing the accelerator pedal i mmediately but very gradually to reduce
speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle and trailer
should stabilize.
●After the trailer sw aying has stopped:
• Stop in a safe place. Get all occupants out of the vehicle.
• Check the tires of the vehicle and the trailer.
• Check the load in the trailer. Make sure the load has not shifted.
Make sure the tongue weight is appropriate, if possible.
• Check the load in the vehicle. Make sure the vehicle is not overloaded after occupants get in.
If you cannot find any problems, the speed at which trailer swaying occurred is beyond
the limit of your particular vehicle-trailer combination. Drive at a lower speed to pre-
vent instability. Remember that swaying of the towing vehicle-trailer increases as
speed increases.
2034-2. Driving procedures
4
Driving
NX300h_OM_USA_OM78082U
If the hybrid system is stopped with the shift lever in a position other than P, the
power switch will not be turned off but instead be turned to ACCESSORY
mode. Perform the following procedure to turn the switch off:Check that the parking brake is set.
Shift the shift lever to P.
Check that “Turn Off Vehicle” is displayed on the multi-information display
and then press the power switch once.
Check that “Turn Off Vehicle” on the multi-information display is off.
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON mode (the
hybrid system is not operating) for more than an hour with the shift lever in P, the power
switch will automatically turn off. However, this function cannot entirely prevent 12-volt
battery discharge. Do not leave the vehicle with the power switch in ACCESSORY or
ON mode for long periods of time when the hybrid system is not operating.
■Sounds and vibrations specific to a hybrid vehicle
P. 8 0
■Electronic key battery depletion
P. 1 2 1
■When the ambient temperature is low, such as during winter driving conditions
When starting the hybrid system, the flas hing time of the “READY” indicator may be
long. Leave the vehicle as it is until the “REA DY” indicator is steady on, as steady means
the vehicle is able to move.
■Conditions affe cting operation
P. 1 4 2
■Note for the entry function
P. 1 4 3
■If the hybrid system does not start
●The immobilizer system may no t have been deactivated. (P. 8 6 )
Contact your Lexus dealer.
●Check that the shift lever is se curely set in P. The hybrid system may not start if the shift
lever is displaced out of P. “To Start Vehicle, Put Shift Lever into P” will be displayed on
the multi-information display.
■Steering lock
After turning the power switch off and opening and closing the doors, the steering wheel
will be locked due to the stee ring lock function. Operating the power switch again auto-
matically cancels the steering lock.
When stopping the hybrid system with the shift lever in a position other
than P
1
2
3
4
2044-2. Driving procedures
NX300h_OM_USA_OM78082U
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from over heating, operation of the motor may be sus-
pended if the hybrid system is turned on and off repeatedly in a short period of time. In
this case, refrain from operating the hybrid system. After about 10 seconds, the steering
lock motor will resume functioning.
■When “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.
■If the “READY” indicator does not come on
In the event that the “READY” indicator does not come on even after performing the
proper procedures for starting the vehicle, contact your Lexus dealer immediately.
■If the hybrid system is malfunctioning
P. 8 2
■If the electronic key battery is depleted
P. 5 3 2
■Operation of the power switch
●When operating the power switch, one short, firm press is enough. If the switch is
pressed improperly, the hybrid system may no t start or the power switch mode may not
change. It is not necessary to press and hold the switch.
●If attempting to restart the hybrid system immediately after turning the power switch off,
the hybrid system may not start in some cases. After turning the power switch off,
please wait a few seconds before restarting the hybrid system.
■If the smart access system with push-butto n start has been deactivated by a customized
setting
P. 5 9 2
A message will be displayed on the multi-infor-
mation display.
Check that the shift lever is in P. Press the power
switch while turning the steering wheel left and
right.
2514-5. Using the driving support systems
4
Driving
NX300h_OM_USA_OM78082U
WA R N I N G
■Conditions under which the vehicle-to-vehicle distance control mode may not func-
tion correctly
Operate the brake pedal (or accelerator pe dal operation depending on the situation)
as necessary in the following conditions as the radar sensor may not be able to cor-
rectly detect vehicles ahead, which may lead to an accident resulting in death or seri-
ous injury.
●When the vehicle ahead of you decelerates suddenly
●When your vehicle is pointing upwards
(caused by a heavy load in the luggage com-
partment, etc.)
●When the road curves or when the lanes are
narrow
●When steering wheel operation or your posi-
tion in the lane is unstable
Accelerate Accelerate Decelerate
2654-5. Using the driving support systems
4
Driving
NX300h_OM_USA_OM78082U
WA R N I N G
■Conditions under which the vehicle-to-vehicle distance control mode may not func-
tion correctly
Operate the brake pedal (or accelerator pe dal operation depending on the situation)
as necessary in the following conditions as the radar sensor may not be able to cor-
rectly detect vehicles ahead, which may lead to an accident resulting in death or seri-
ous injury.
●When the vehicle ahead of you decelerates suddenly
●When your vehicle is pointing upwards
(caused by a heavy load in the luggage com-
partment, etc.)
●When the road curves or when the lanes are
narrow
●When steering wheel operation or your posi-
tion in the lane is unstable
Accelerate Accelerate Decelerate
2704-5. Using the driving support systems
NX300h_OM_USA_OM78082U
LDA (Lane Departure Alert with steering control)
While driving on a highway or freeway that has white (or yellow) lane markers
and few curves, a camera, which is located on the upper part of the windshield,
uses this system to recognize the white (yellow) lane markers and when the
driver has deviated from the lane. If the system judges that the vehicle has devi-
ated from the current traffic lane, along with alerting the driver with a buzzer and
indications in the multi-information display, it will provide assistance by operating
the steering wheel to avoid further deviation from the marker lines.
Lane recognition camera
Indicators
Display
LDA switch
: If equipped
Summary of function
1
2
3
2714-5. Using the driving support systems
4
Driving
NX300h_OM_USA_OM78082U
◆Lane deviation alert function
When the system judges that the vehicle is deviating from the current traffic lane,
an alert buzzer sounds and it prompts cautions from the display screen of the
multi-information display.
When the alert buzzer sounds, please ch eck the surrounding road situation and
return near the center of the white (yello w) lane markers by safely operating the
steering wheel.
◆ Steering control function
If the system judges that the vehicle has de viated from the current traffic lane, it is
displayed in the multi-information displa y and steering force is supplied to the
steering wheel by the steering control, pr oviding required assistance in steering
wheel operation to avoid further deviation from the marker lines.
In order to prevent over relying on the system, when the system does not operate the
steering wheel and driving where hands are lightly supporting the steering wheel
continues, a warning message is displa yed on the multi-information display.
Functions included with LDA
Alert buzzer
Alert buzzer
In steering control
2734-5. Using the driving support systems
4
Driving
NX300h_OM_USA_OM78082U
■Steering control function
In addition to the operation conditions for the lane deviation alert function,
when all of the following conditions are fulfilled, it operates.
●When settings for the “Steering Assist” in the “Settings display” of the multi-
information display is set to “On” ( P. 2 76 )
●When the vehicle has not slowed down more than a defined setting.
●When the steering wheel is operated wi th a steering force level that is not
equivalent to changing lanes.
●When the ABS, VSC, TRAC, or PCS (if equipped) is not operating.
●When intentional accelerator peda l operations are not performed.
■Lane deviation alert function
In any of the following cases, the lane deviation alert function will be tempo-
rarily canceled. When the conditions, in which the cancelation occurred
improves, the function will resume operations.
●The vehicle speed deviates from the operating ranges of the function
●The turn signal lever is operated
●When the emergency flashers are operated
●When the lane markers cannot be recognized while driving
●When the system malfunctions
●Immediately after the lane deviation alert operates
The lane deviation alert function will not operate again for a several sec-
onds after it has been activated, even if the vehicle leaves the lane again.
●When more than half of the vehicle body straddles the lane
■Steering control function
In addition to the temporary cancelation conditions of the lane deviation alert
function, in any of the following cases the steering control function is tempo-
rarily canceled. When the conditions for which the cancelation occurred
improves, the function will restart operations.
●When the vehicle has slowed down more than a defined setting.
●When the steering wheel is operated with a steering force level that is
equivalent to changing lanes.
●When the ABS, VSC, TRAC, or PCS (if equipped) is operating.
●When intentional accelerator pedal operations are performed.
●Operations of the VSC and TRAC have been turned off ( P. 3 0 7 )
Temporary cancelation of the functions