Operation Description

Quickly push (less than 1.5 seconds) and release the ProPILOT Assist switch ON.

The status of the ProPILOT Assist system is displayed in the information display and, ProPILOT Assist system is set to a standby state.

ADAS control unit performs the control as per the following:

Control active (straight road)	The front camera unit detects the lane markers and sends the lane marker detection signal via CAN communication to the ADAS control unit. Based on the lane marker detection signal, the ADAS control unit supports steering by sending commands via CAN communication to the EPS control unit for keeping the vehicle in the lane
Control active (curved road)	The front camera unit detects lane makers and sends the lane marker detection signal via CAN communication to the ADAS control unit. The ADAS control unit supports steering to match curves of road by sending commands based on the lane marker detection signal via CAN communication to the EPS control unit for keeping the vehicle in drive lane.
Control standby	The ADAS control unit temporarily cancels the steering wheel assistance function when received the turn signal indicator signal via CAN communication from BCM.
Control reactivation	After completing lane change, the ADAS control unit reactivates the steering wheel assistance function by receiving the lane marker detection signal via CAN communication from the front camera unit

Operation Condition

The Steering Assist controls the steering system to help keep own vehicle near the center of the lane when driving. The Steering Assist is combined with the Intelligent Cruise Control (ICC) system.

The Steering Assist can be activated when the following conditions are met.

The ICC system is activated.
Lane markers on both sides are clearly detected.
A vehicle ahead is detected (when the vehicle is driven at speeds under 60 km/h [37 MPH]).
The driver grips the steering wheel.
The vehicle is driven at the center of the lane.
The turn signals are not operated.
The front wiper is not operated in the high (HI) speed operation (the Steering Assist function is disabled after the wiper operates for approximately 10 seconds).

Steering Assist Temporary Standby

Automatic standby due to driving operation
When the driver activates the turn signal, the Steering Assist is temporarily placed in a standby mode. (The Steering Assist restarts automatically when the operating conditions are met again.)
Automatic standby
In the following cases, a warning message is displayed along with the chime, and the Steering Assist is placed in a temporary standby mode. (The Steering Assist restarts automatically when the operating conditions are met again.)
- When lane markers on both sides are no longer detected
- When a vehicle ahead is no longer detected under approximately 60 km/h (37 MPH)

Steering Assist Cancel Condition

Under the following conditions, the Steering Assist cancels, and the Steering Assist status indicator and the Steering Assist indicator turn OFF:

When unusual lane markers appear in the traveling lane or when the lane marker cannot be correctly detected for some time due to certain conditions (for example, a snow rut, the reflection of light on a rainy day, the presence of several unclear lane markers)
When the front wiper operates in the high (HI) speed operation (the Steering Assist is disabled when the wiper operates for more than approximately 10 seconds)

NOTE: Turn the Intelligent Cruise Control (ICC) system OFF using the CANCEL switch. When the conditions listed above are no longer present, turn the ICC system ON again.

Steering Wheel Release Warning Function

During steering assist control, the ADAS control unit detects driver's steering operations based on the steering torque signal received from the EPS control unit via CAN communication.

Courtesy of NISSAN NORTH AMERICA, INC.
If the ADAS control unit detects a condition that driver releases the steering wheel, a warning is indicated on the vehicle information display.
If the driver does not operate the steering wheel after the warning has been displayed, an audible alert sounds and the warning flashes in the vehicle information display, followed by a quick brake application to request the driver to take control of the vehicle again.
If the driver still does not respond, the Pro- PILOT Assist turns on the hazard lamp and slows the vehicle to a complete stop.
The driver can cancel the deceleration at any time by steering, braking, accelerating, or operating the ProPILOT Assist switch.

NOTE: If the driver lightly touches (instead of firmly grips) the steering wheel, the steering torque sensor may not detect the driver's hand(s) on the wheel and a sequence of warnings may occur. When the driver holds and operates the steering wheel again, the warnings turn OFF.