I began experiencing issues with what we believe to be my break switch, and while I was driving down the road 3 of my breaks locked up, also taking away my ability to stop.

- Colorado Springs, CO, USA

2018 Nissan Altima sl while driving in rain the message 'front radar unavailable due to obstruction, ' appears. Vehicle begins to shake and the back brakes engage without touching them. Vehicle tries to hydroplane. Vehicle slows to approx 35 or 40 miles per hour. It feels like the back passengers wheel is locked up. I have owned this vehicle for 7 months. The aeb sensor has been replaced. This problem has happened 3 times since the replacement. Always while driving in the rain.

- Ninnekah, OK, USA

The front radar is faulty and is causing issues with the front emergency braking (Feb). There is a notification that says "Feb unavailable: Front radar obstruction". this is causing a regular distraction to the driver and also poses in a risk that the vehicle may automatically brake unexpectedly or not brake in an emergency situation.

- Pittsburgh, PA, USA

Front collision sensor turns on even without any cars in front. The dealer said sometimes the rain affects the sensor but it still turns on even when it's not raining. Once it's the warning light is on, it never turns off. I'm concerned for my safety especially when the emergency brakes depends on the sensor. This happens whenever I drive on a city street. I've had this car since 12/8/19.

- Orlando, FL, USA

While driving a sensor light appears and reads obstruction unavailable and stays for several minutes before turning off this happens at least 5 to 6 times a week. Another problem im having is a knocking sound under driver feet while driving and turning I took it in to have it checked and the technician drove it heard the sound kept the car a whole day but said he couldn't find anything wrong but clearly there is a problem if he and I hear can hear the noise. When I picked the car up it still makes the same sound and I'm afraid while driving something may happen to the wheels. It sounds to me like this is a rotor problem. I've taken the car in twice regarding this same problem and it has not been fixed. Since purchasing this car it has been in service at least 10 times with different problems 3 times for brakes, one time for not being able to push brake to start two times for excessive wind noise from windows had front and back brakes replaced twice and now having to take it back to replace window seals and knocking noise that has not been fixed. Nissan really did a poor job building the particular car not even two years from purchase with several problems very unsatisfied customer

- Tuskegee, AL, USA

The security feature on the vehicle disables the car at random.

- Jacksonville, AR, USA

The front electronic braking system Feb intermittently goes out saying "front radar obstruction" every time I drive the car. If the car is turned off then back on it works normally but will happen again within an hour or so every time it's driven, no exceptions.

- Anna Maria, FL, USA

Front sensor keeps going off and on even when not around any cars... backup camera cuts off and on while reversing

- Dunmore, PA, USA

The front sensor on my 2018 Nissan Altima malfunctions, stating that there's a front radar obstruction at times. Other times, it falsely detects a vehicle too close in front of me when there's nothing actually in front of me on streets and on the freeway. It recently engaged the brakes while I was on a street when it falsely detected another vehicle too close in front of me. Luckily, no accident resulted.

- Grapevine, TX, USA

Every time I drive my car no matter what the weather condition is this light comes on nonstop

- Dalton, GA, USA

Car would not brake and hit a pole. The vehicle is supposed to have emergency brakes, but did not work. Often would get a message across my dashboard saying it was unavailable.

- Mount Laurel, NJ, USA