Lane Keep Assist Operation
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There is two stages of warning/intervention for the driver: The first stage is the steering push back, if the lane keep assist system detects that the vehicle will cross the lane marking despite it is intervening, a second stage warning shall be issued. The second stage warning is a chime or a haptic seat vibration, if equipped with haptic seats. If a haptic seat vibration is used as stage 2 warning, the vibration shall take place on the side of the seat, where the lane departure happened.
System operation can be described by the following modes:
- Off State: The system has been turned off by the driver using the lane keep assist switch. The lane keep assist indicator will not be illuminated.
- Not Ready To Assist: The system is enabled and the lane keep assist indicator is illuminated, but not ready to assist when any of the following conditions is true:
- Vehicle speed is less than 37 MPH (60 km/h) . The system is designed to function at speeds greater than 37 MPH (60 km/h).
- The system cannot detect lane markings. This may be because there are no lane markings, as on a country road or that the lane markings cannot be determined due to snow, rain, or other driving conditions.
- The windshield area in front of the camera or the camera lens is blocked by fog, dirt, damage to the windshield or other elements that may prevent the camera from detecting lane markings.
- Ready To Assist: The system is enabled and ready to warn of the unintentional lane crossing. The system is ready to assist when the green lane keep assist indicator is illuminated on the vehicle direction display.
Lane Crossing Alerts
- When one of the following conditions are met, the system will not give alerts:
- The correct turn signal is activated. An activated turn signal is interpreted as an intentional lane crossing.
- The operator makes an intentional steering maneuver.
- The operator makes an intentional accelerating maneuver.
- The operator makes an intentional braking maneuver.
- Lane crossing alert consists of the following:
- The amber lane keep assist indicator will flash.
- "push-back" steering torque input (or nudge) from Electric Power Steering to help prevent a lane departure
- Three chimes are activated through the radio.
- or if equipped , three pulses to the left or right side of the seat.