2019 Nissan Sentra Driver Assist & ADAS Problems

while i was driving, the front collision warning and emergency brake went off out of nowhere when there was no cars in front of me as the street was empty.

The Automatic Emergency Braking does not operate as it was designed to. My vehicle is available for inspection upon request. My and my families safety was put at risk because the AEB failed to engage as it should have. We didn't have an accident, but came very close to it. This has happened before, and every time the vehicle fails to automatically brake. I have complained about and had the vehicle inspected for this issue several times by the dealer, during AND after the manufacturers warranty expired. Every time I'm told it's operating as expected....it is not! I hear warning beeps, often when someone is turning in front of me and I'm not even close to them, but it never attempts to brake. I never heard it beep when getting close enough to a vehicle directly in front of me to make it activate, until recently. After the last time I complained to the dealer about it, it's now acting different. It now beeps when I'm coming up to a vehicle that's directly in front of me, but it still fails to activate the brakes as I believe it should. I've driven other vehicles with this system and the brakes activate well before there's a chance of collision. This issue appeared within the first few months we owned the vehicle, which I purchased brand new from the dealer.

Collision mitigation goes off all the time in the rain when it’s reflecting, the brake light of the car in front of me on the road which caused my car to slam on the brakes because it automatic emergency brake

As I was driving, my car randomly came to a quick, abrupt and forceful break. It began making a beeping noise and something quickly flashed on my dashboard. It disappeared before I had a chance to read it but I remember it flashing “red”. The break lasted for maybe a second but it was extremely alarming and could have caused a severe accident if the surrounding cars were close to me. This is my second time experiencing this issue. Since it hadn’t happened in such a long time since the first time I figured the car would be okay. The first time it happened was around September 2022. And it just occurred again yesterday, on August 4,2023. Given how long I went without experiencing the problem again I did not report this specific issue to the manufacturer. However, I did experience a different problem in the past with my automatic breaking system that I did report to the manufacturer. My dashboard would randomly display a yellow picture of two cars crashing. Following the dashboard light coming on my car would randomly accelerate without me applying added pressure to the gas and it would gradually break on its own while my foot was still on the gas, but it wasn’t an abrupt break like I recently experienced. Between 2019 and 2020 I took my vehicle to Passport Nissan in Maryland three times for issues surrounding my breaking system. They said it was an issue with my front radar. They ordered a part and had it recalibrated. I continued to experience the same issue until I finally took it to Sheehy Nissan of Waldorf, where I actually purchased my car. After Sheehy looked into my car I had no further issues with my car accelerating or gradually breaking. However, the issue I’m experiencing now is dangerous and can lead to car accidents, especially for the cars that drive behind me. My car is available upon request with advance notice. Please note there were no warning lamps and or messages prior to this incident.

Forward collision warning light came on as I was driving w/ no cars in front of me. The car jerked as if i slammed on my brakes. As I was pulling into my driveway, Malfunction See owners manual showed along w/ AEB warning light. I waited a while then came back outside to start car and the brakes were stiff and it wouldn't start. Malfunction see owners manual showed again along w/ AEB warning light and Engine light blinking. Then it started to make a constant, solid beeping type noise and shut off. I literally just found about the recall as I never received any type of notice. It took Google to tell me this which brought me here.

The contact owns a 2019 Nissan Sentra. The contact stated while driving 45 MPH and exiting the highway, the Forward Collision Avoidance Automatic Emergency Braking feature engaged inadvertently and the vehicle stopped abruptly, causing the vehicle to fishtail. The contact stated that an unknown red warning light was illuminated. The contact stated that there were no other vehicles nearby at the time of the failure. The next day, the contact notified the dealer of the failure and made an appointment to have a diagnostic test performed. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 56,000.

The FCW and the AEB lights come on periodically stating that the system is malfunctioning. Took it to the dealer and they said it was the sensor for the FCW and AEB that has failed. Other vehicles around my mileage and year and model have had the same issues. Nissan needs to take care of this.

INTERMITTENT PROBLEM WITH EMERGENCY BRAKING SYSTEM. WHEN OBSTRUCTION IS DETECTED THE EMERGENCY BRAKING SYSTEM WILL OVERRIDE ALL USE OF MANUAL BRAKING. THE BRAKE PEDAL WILL GO TO THE FLOOR WITHOUT ACTIVATING ANY FORM OF BRAKES FOR A FEW SECONDS AND THE AUTOMATIC BRAKES DO NOTHING. ONCE WHILE TRYING TO STOP ON A 55MPH HIGHWAY FOR A TRAFFIC LIGHT AND ONCE WHILE ENTERING A ONE LANE CONSTRUCTION ZONE ON A 70MPH INTERSTATE. LOCAL NISSAN DEALER HAS DIAGNOSED THE CAR AS WORKING AS INTENDED BUT I'M SURE IT'S INTENDED FOR THE VEHICLE TO STOP.

EVEN A SMALL BUMP IN THE ROAD (NOT EVEN A BIG SPEED BUMP) SOMETIMES CAUSES THE FRONT BUMPER TO RISE AND STRIKE THE BRACKET HOLDING THE FORWARD COLLISION WARNING SENSOR. THAT THROWS THE SENSOR OUT OF CALIBRATION AND MAKES IT UNRELIABLE. THE TECH AT AUTO NATION COLLISION IN LAS VEGAS TOLD ME THIS IS A COMMON PROBLEM. HE SAID THE BUMPER AND THE BOTTOM OF THE BRACKET ARE TOO CLOSE TOGETHER SO THE BRACKET GETS HIT OFTEN AND DAMAGES THE SENSOR. THIS IS A SAFETY ISSUE. YOU THINK YOU HAVE A COLLISION WARING SYSTEM BUT YOU DON'T OR THE SENSOR REPORTS A COLLISION WHEN NONE HAS HAPPENED.