2021 Nissan Titan

I was traveling on the Interstate at about 50 miles an hour. I went under a bridge and my front crash avoidance sensors malfunctioned and the breaks were applied. My truck completely locked down to a stop and I could not get the truck to move. I in turn was hit in the rear end by a semi truck. The local Nissan dealership started that it was a known.

The vehicles automatic emergency braking system falsely triggers under certain conditions. It most commonly occurs when the the vehicle travels under bridges in sunny, clear conditions. Presumably, the vehicle believes that the shadow cast by the bridge is an object when it is in fact just a shadow. After this happened three times in a 20 mile stretch, the vehicle displayed a warning light saying that the system had malfunctioned and automatically turned the forward collision system off. The problem still occurs to this day when driving under the conditions previously described and has nearly caused a number of accidents. The vehicle is available for inspection upon request.

The contact owns a 2021 Nissan Titan. The contact stated that while driving at various speeds, the Automatic Emergency Braking system inadvertently activated, causing the vehicle to suddenly decelerate. The contact stated that on one occasion, the vehicle abruptly stopped. The vehicle was taken to the local dealer who was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was notified of the failure and indicated that the vehicle operated as designed. The contact stated that on another occasion while driving 60 MPH, the vehicle independently stopped underneath a bridge. The contact stated that the shadow from the bridge had caused the Forward Collision Avoidance: Automatic Emergency Braking to inadvertently activate. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 14,900.

The emergency braking driver assist is panic braking going over railroad tracks. It is "seeing" the railroad tracks as a vehicle and emergency braking with no cars around. The problem is even when slowing to a crawl under 5mph it slams on the brakes. Any car following behind may hit the car as there is no reason for the braking. Any speed going over tracks will cause emergency braking, the safety issue is if going at any speed a car following behind may without warning or reason have this truck stop for no reason. This is a major accident waiting to happen. We ha e reported it to Nissan and now the 2nd service reporting it and they have been "investigating" is for over a year now. Multiple trucks have this issue. The sutherland nissan dealer had a tech see this happen to them. If the road is at an decline, and there are rxr tracks the metal in the tracks are seen as a car. The sensors /software need fixed. The only workaround now is to turn off the front end avoidance emergency braking (so why have it) and if there is an accident insurance will want to know why we turned it off.