Nissan LEAF 2023 Owners Manual
9.16.3.5. System temporarily unavailable
The following are conditions in which the ICC system may be temporarily unavailable. In these instances, the ICC system may not cancel and may not be able to maintain the selected following distance from the vehicle ahead.
Condition A
Under the following conditions, the ICC system is automatically cancelled. A chime will sound and the system will not be able to be set:
When the ESP is turned off
When the ESP (including the traction control system) operates
When a vehicle ahead is not detected and your vehicle is travelling below the speed of 25 km/h (15 MPH)
When the system judges the vehicle is at a standstill
When the shift lever is not in the D (Drive) position
When the parking brake is applied
When a tyre slips
When the radar signal is temporarily interrupted
On repeated uphill and downhill roads
Action to take:
When the conditions listed above are no longer present, turn the ICC system back on to use the system.
Condition B
The chime will sound and the [Not Available Front Radar Blocked] warning message will appear in the vehicle information display.
When the radar sensor area is covered with dirt or is obstructed, making it impossible to detect a vehicle ahead, the ICC system is automatically cancelled.
Action to take:
If the warning message appears, park the vehicle in a safe place and turn the EV system off. When the radar signal is temporarily interrupted, clean the sensor area and restart the EV system. If the warning message continues to be displayed, have the ICC system checked by a knowledgeable LEAF repairer such as a NISSAN certified electric vehicle dealer.
When driving on roads with limited road structures or buildings (for example, long bridges, deserts, snow fields, driving next to long walls), the system may illuminate the ICC system warning (yellow) and display the [Not Available Front Radar Blocked] message.
Action to take:
When the conditions listed above are no longer present, turn the ICC system back on to use the system.
Condition C
When the ICC system is not operating properly, the chime sounds and the ICC system warning (yellow) will appear.
Action to take:
If the warning appears, park the vehicle in a safe place. Turn the EV system off, restart the EV system, resume driving and set the ICC system again.
If it is not possible to set the system or the warning stays on, it may indicate that the ICC system is malfunctioning. Although the vehicle is still driveable under normal conditions, have the vehicle checked. See a knowledgeable LEAF repairer such as a NISSAN certified electric vehicle dealer for this service.