Nissan LEAF 2023 Owners Manual
9.17.8. IEB with pedestrian detection system operation
The IEB system will function when your vehicle is driven at speeds above approximately 5 km/h (3 MPH). For the pedestrian detection function, the IEB with pedestrian detection system operates at speeds between 10 and 60 km/h (6 and 37 MPH).
If a risk of a forward collision is detected, the IEB system will provide an initial warning to the driver by blinking the vehicle ahead detection indicator and providing an audible alert. In addition, the IEB system applies partial braking. If the driver applies the brakes quickly and forcefully, but the IEB system detects that there is still the possibility of a forward collision, the system will automatically increase the braking force.
If the risk of a collision becomes imminent and the driver does not take action, the IEB system issues the second warning to the driver by flashing the IEB emergency warning indicator (red), providing an audible warning, and then automatically applies harder braking.
If a risk of a forward impact with a pedestrian is detected, the IEB system will provide a warning to the driver by flashing the IEB emergency warning indicator (red), provides an audible alert and the system will apply partial braking. If the driver applies the brakes quickly and forcefully, but the IEB system detects that there is still the possibility of a forward collision, the system will automatically increase the braking force. If the risk of a collision becomes imminent and the driver does not take action, the IEB system automatically applies harder braking.
The vehicle’s brake lights come on when braking is performed by the IEB system.
When the IEB system detects an obstacle in the path of the vehicle and displays the IEB warning, a noise may be heard from the motor compartment as the vehicle primes the brakes to improve response time.
Depending on vehicle speed and distance to the vehicle or pedestrian ahead, as well as driving and roadway conditions, the system may help the driver avoid a forward collision or may help mitigate the consequences of a collision, should one be unavoidable. If the driver is handling the steering wheel, accelerating or braking, the IEB system will function later or will not function.
The automatic braking will cease under the following conditions:
When the steering wheel is turned as far as necessary to avoid a collision.
When the accelerator pedal is depressed.
When there is no longer a vehicle or pedestrian detected ahead.
If the IEB system has stopped the vehicle, the vehicle will remain at a standstill for approximately 2 seconds before the brakes are released.