Automatic Emergency Braking problems of the 2021 Nissan Leaf

The automatic emergency braking system on my 2021 Nissan Leaf s plus engaged erroneously (phantom braking) twice. One time was on a sunny day in August 2026 when I had just backed out of my driveway onto my residential street. There was a person walking well to the right side of the road about 100 feet ahead of me. I had just finished backing out and put the car in drive and stepped on the accelerator when the aeb system suddenly engaged despite there being nothing at all directly in front of the car. The second incident was in August or September 2026 when I had come to a stop at a stop sign on a covered roadway just outside a parking garage. As soon as I stepped on the accelerator to make a left turn into the parking garage the aeb system suddenly engaged despite nothing being in front of the vehicle. I have owned this car since August 2023 and have not had any other incidents of phantom braking before these two incidents. I have had no accidents or any other incidents leading up to these incidents. I took the car to Nissan of bellevue where they could not reproduce the issue. They ran diagnostic codes (none came up), checked the physical brakes and checked the 12 volt battery (not sure if they tested under load). They then said they could find no cause of the issue and returned the car to me.

Brakes problem: during rain season the moisture can get into the brake system. When backing up, the brakes feel partially seized, and make squeeze sound. The problem is more serious when pulling the parking brake during overnight parking. Somehow the sound is coming out of front brakes. The sound will diminish after break several times during normal breaking. Forward collision warning system: the system only alerts driver with deeps and lights on dashboard. It doesn’t enables the brake system to slow or stop the car.