2021 NISSAN ALTIMA Service Brakes Problems

Vehicle Breaking on Its Own While Driving I am writing to file a formal safety complaint and to demand immediate corporate intervention regarding an extremely dangerous mechanical/ADAS defect. My Nissan Altima has serious, ongoing safety issues where the vehicle will unexpectedly and aggressively apply the brakes on its own while I am driving, including on highways and regular roads. This defect happens without my input, without warning, and creates a major risk of being rear-ended, losing control of the vehicle, or causing a serious accident. This issue is Not minor. It is a life-threatening malfunction that makes the vehicle unsafe to operate. I have taken the vehicle to authorized Nissan dealerships for diagnosis and repair on multiple occasions & originally they told me it should be under warranty & when they spoke to the dealership they said it did not qualify under the warranty nor the extra insurance purchased & i'd have to come out of pocket for repairs. A vehicle that breaks on its own, especially at highway speeds – is not safe, not reliable, and not roadworthy. This situation has gone on for years and the vehicle is now a clear danger to me and the public and my three minor children who ride in the car with me. I am requesting immediate action and a good-faith resolution.

Due to the Pasadena wildfires the car has been highly affected due to the extreme heat and the ashes

Every time I drive under an over pass my vehicle will come to a stop. Placing me in DANGER with traffic.

I Serviced my vehicle with a Nissan Dealership, and was told brake pads were good. Within a couple of weeks there was a scratching sound like the brake warning indicator. I brought my car to a mechanic to be repaired but brake pads were confirmed to be fine. Further investigation indicates a bad brake caliper in the rear. Mechanic contacted Nissan to order a rear caliper and was told it’s a known issue with the rear calipers. With the caliper not functioning properly this is a direct safety violation and can cause my brakes to seize or not function hindering my/others ability to stop. I will have the repairs done with my mechanic and I have submitted a case file with Nissan. If Nissan is aware of the brake calipers having issues then this should be on the recall list and immediately fixed.

When traveling in a rental from SFO to Concord CA, on the Bay Bridge at 9 am on the 26 of September 2023, just as I entered the underpass section near Treasure Island, the front sensor malfunctioned and auto braked from 47 mph to 28, generated audible, tactile, and visual alarms, even though the car in front was not decelerating (auto lights, tail lights in from of me as the car went into a dark section of road may have been misinterpreted). I was almost crashed into. Scariest experience in 37 years of driving. No over ride.

1. The automatic emergency braking activated while approaching a railway crossing. And yes, it is available for inspection. 2. If anyone had been behind me, it very likely would have resulted in a collision. 3. Not yet confirmed by the dealer, but has happened to me three times. 4. No. 5. No warning before the malfunction.

While driving, most times at higher speeds, the light with the car and lines behind it (VDC light?) will turn on, and then a minute later the front and back AEB lights turn on and the dashboard says “malfunction: see owner’s manual.” This happens multiple times per week, sometimes multiple times a day. There have been other recalls for this issue with other Nissan Altima years with this system.

On two separate occasions, during intermittent weather changes, my vehicle has giving me notice of forward warning collision being disabled or has flashed on my dashboard. Same goes with my rear collision warnings. My car has also force-brake while driving under 30 mph. I don't know if there is a safety issue with the alignment of the radars in the newer models but its caused a fear of driving my family in that car.

On two separate occasions my vehicle stopped on its own. Once while doing roughly 35mph the brakes applied on their own and the car stopped immediately. The second time I was at a.traffic light that had just turned green as I began to accelerate the brakes locked up and the car stopped immediately. What are my options regarding this issue.that I am having?

I was driving on the interstate in a construction zone and begin reducing speed from about 62 mph after noticing brake lights from cars in the far distance. As the car start to reduce speed, I begin to apply the brakes as I'm approaching the stopped traffic and instead of stopping my car kept going. I pressed the brakes harder, and the car began to slide. After sliding about 9-10 car lengths, I was stopped by rear ending the vehicle in front of me. There was an error message on the dash "Chassis Control System Error See Owner's Manual" that appeared on the dash. I was struck in the back by a Toyota 4Runner resulting in my car being totaled.

Unknown. But upon googling I’ve discovered a recall for ball joint separating from steering column due to bolt not tightened properly which explains the noise I’ve heard since I got It which has now progressed to popping even up exiting the vehicle and shutting the door. Yet, “0 unrepaired recalls” according to you.

Driving down the street a truck in front of the lady in front of me. It was a green light he decided to stop. She stopped I put I started to stop my brakes would not stop the car nor did the emergency front collision brakes work I could not stop the car.

The forward emergency braking system periodically will engage with no reason. I did not record the first date this happened. It was in July 2021. This first happened not long after I purchased the car last year on the interstate in heavy traffic with low speed and nothing close enough to set it off. Sometimes just the emergency light will just appear and disappear quickly and sometimes it comes on and the brakes go on. The dealer service and the regional technician has inspected it a few times and could find no error but it only happens sporadically. I checked recently and there is a class action suit against Nissan for the same problem in Tennessee. There seems to be the same problem with other models from 2019 to present.

I bought the car in nov. 2021. I was at a store parked I put the car in reverse ,the car started to move, it made a lot of noise and it stoped. there was nothing behind me. This has happen about four times backing out of my driveway a lot of noise and the car stops. I took it to the dealer once and they told me that they could not find any problems.

First of all I know there is a break in period. The stering seems to be loose at times almost to loose when I’m turning , especially a more sharper turn. The brakes are loud at a stop almost like they are warped but it only has 300 miles.the suspension, brakes,,underneath the front end, and the steering do not feel like they are one unit.