2019 NISSAN ALTIMA Forward Collision Avoidance Warnings Problems

I changed the Air Mass Flow sensor and it’s still showing the check engine light on my dash board and giving me the same code after replacing it brand new. My brakes sound horrible after replacing both sets of brakes, front and back. The Foward Collision Warning sensor did not respond in a timely matter, resulting in a minor fender bender.

Every time I put the breaks on or go over any kind of speed bump, it bounces and sounds like warn out bed springs. Out of nowhere The volume on my radio will turn up extremely loud. Its happened more than a handful of times while driving and it scared me to the point of having to pull over to gather myself. Some days it doesn’t work at all. The past 3 months, My front passenger window gets stuck and won’t go up without me turning the car off then back on and still at times won’t work. I’ve had no choice but to leave the window down more than enough times and putting plastic over it until it decides to work again. The engine shakes and it feels like the transmission is about to give.

The airbag system failed to deploy during a collision. The vehicle is currently in not my possession. The airbag control module, sensors, and airbags themselves can be inspected to determine the cause of non-deployment. 2. How was your safety or the safety of others put at risk? My safety was put at significant risk because the airbags did not deploy during the impact. This increased the potential for serious injury to the driver and passengers during the crash, as the airbags are a critical part of the vehicle’s safety system designed to prevent head and chest injuries. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Not yet. The vehicle has not been inspected by my insurance and considered totaled. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? A police report was filed for the accident,...

While driving my Nissan Altima in normal operation, the vehicle suddenly and unexpectedly stopped and applied the brakes without any input from me. This occurred without warning and created an extremely dangerous situation. There were no other vehicles, obstacles, or apparent reasons for the vehicle to engage any safety systems. This is a critical safety defect that could have resulted in a serious accident. I was fortunate that no vehicles were following behind me, but this incident could easily cause rear-end collisions or other accidents if it occurs again.

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CARE IS GIVING ERROR OF "ENGINE MALFUNCTION REDUCED SPEED, SERVICE SOON" WITH ENGINE, TRACTION AND COLLISION LIGHTS ACTIVATING AT THE SAME TIME. CAR THAN SLOWS DOWN AND HAS SHUT OFF. THIS ERROR HAPPENS WHILE DRIVING OR JUST BY HAVING IT ON. ALSO WHILE STEREO, BULETOOTH OR CARPLAY IS ON THE VOLUME WILL DECREASE ON ITS OWN UNABLE TO TURN UP VOLUME WITH KNOB. THIS HAS BEEN HAPPENING SINCE I BOUGHT THE CARE IN 2021

car constantly is breaking saying there are cars in front of me when there are not, especially going under bridges. the light flashes 90% of the time warning me. i have cleaned off the sensor and it still does it and brakes me when i should not be braking

I purchased the 2019 Nissan Altima March 22,2024 for the last week the car will start when it wants , the collision sign on the dash comes on and states it’s blocked , the car will stop or shut off while driving ( on the highway with my two children ) the car stoped & a big truck almost ran in the back of me , the seat belt on the right side doesn’t work . Theirs 4 other problems with the car the could get me and my children killed I have documents from Autozone about my engine that’s not good . ( and the computer I put on to check the car says stop and repair car immediately) . I have pictures of that also .

Adaptive Cruise control and Forward Collision warning has failed. The cruise control will not engage. The Electronic braking system has malfunctioned and this has somehow disabled the cruise control on the vehicle. The car will still brake. I understand that this has been known issue with Nissan but they are not willing to repair it.

ECM is causing my car to stay in a constant Malfunction state. The problem began in April 2023 and at first was intermittent. Now it stays in limp mode. The collision and traction control indicators stay on, as well as the check engine light. Two sensor codes came up and those were changed, but now the malfunction will not allow the codes to be cleared. This puts myself, passengers, and everyone else on the road in danger because when it malfunctions, it brakes without warning. Not to mention the amount of gas the car is using. The vehicle was inspected by a mechanic who stated it was the ECM causing it. This needs to be recalled.

while driving in traffic with the adaptive cruise control on, the system indicated a sensor malfunction. This is a well-known occurrence for these vehicles as reported on numerous Nissan sites and other websites. This failure can present a safety hazard if the warning comes with little time to react to traffic conditions.

Please note that I have my car regularly inspected for oil changes and maintenance. The adaptive cruise control stopped working August 2022. The car displays "malfunction" on the dashboard. This was inconvenient and at first intermittent, but I did not think it was putting any persons safety at risk. I went to a local Nissan dealership in NJ and they stated it would cost $600 to replace, but no safety issues. Therefore I did not get this fixed at the time. On March 14 2023, I was merging onto a highway in daylight around 4pm. It had started flurrying, but no changes in visibility. There was no car immediately in front of me. The collision warning suddenly came on and the emergency brakes were activated while attempting to accelerate onto a 65 mph highway in NJ. It was extremely startling. It certainly could have caused an accident, especially when vehicles...

Every time I get in my car a start to drive either forward of backing up my car dings and a message pops up ont the display that says "warning ⚠️ Malfunction" and shows the car crash button. I have not been in any accidents and it randomly started happening a few days ago. Now I worry that my car may not sensor any objects in my path or that it could trigger my automatic break to kick in creating an accident. I have also researched online and found others who have experienced the same thing but there is no open recall on my vehicle.

08/24/22 driving on a three lane highway with no cars in front of me in any lanes, no pedestrians, animals or any obstacles going 50 mph, the car just stopped and the forward collision warning activated and the car stopped. Took the car in to the local dealer 09/08/22 where technician noted they could not replicate the issue on test drive. Dealer service pointed the issue to 12/2021 accident and wanted to charge me $2,020 to fix. Car has less than 17K miles and is under warranty.

The front radar distance sensor becomes blocked and unavailable while driving. This happens every time I drive the car. Several times the warning message came on and the car tried to briefly brake. I took my car into the Nissan dealership and they confirmed the sensor has failed and recommends replacement. This is a known issue with Several models of Nissan cars per NHTSA NTB19-033A. This has been happening in my car for about two weeks. I took it in to the dealership as soon as I could after noticing the problem. I believe my car was built at the end of 2018 and has this faulty sensor reference in NHTSA NTB19-033A or clearly they have not rectified the problem fully. I think 2019 vehicles should be added to the recall.

The forward AEB system warning light illuminated at 47,124 miles. I parked the car, turned it off and then restarted it and the light remained off for about 5 miles before re-illuminating and remaining on continuously. While I was driving, the car began braking at random times when there was no vehicle in front of me, and would decelerate to 40mph sporadically. I ended up pulling over on the highway and having the vehicle towed to my office until I could afford to have it taken to a Nissan dealer. I purchased the vehicle used on June 8, 2022 and this malfunction first occurred today, June 13, 2022. Per the service records, there is no other notification of this malfunction occurring prior to this incident.

The car regularly automatically slams on the brakes for no reason when there is nothing ahead of me. While in parking garages, turning on divided highways and worst of all while crossing railroad tracks. Dealership just brushed off my concerns because it wouldn't do it for them, and I don't think they checked my car at all. I also get a collision system malfunction warning, sometimes while driving and other times while sitting still. This is DANGEROUS, one day I will either be rear ended or God forbid hit by a train.

Forward Emergency Braking/Collision Warning - Activated without cause or other indication - The vehicle suddenly applied brakes - then released them - two occasions - on 01/21/2022 a New Castle County Police Department vehicle following me swerved into adjacent lane to avoid collision Dealer service was unable to replicate event/s - no other vehicle inspections. No other previous indicators or warnings, Second event occurred on 01/23/2022 at about 30 mph.

The forward collision warning malfunctions and a warning light is displayed. This used to be an intermittent problem which now occurs every time I drive the vehicle. This is an important safety feature in the vehicle.

I WAS DRIVING ON A SLIGHTLY DAMP ROAD IN THE EVENING (DARK). A WARNING FLASHED ON MY DASHBOARD SAYING THAT THEIR WAS OBSTRUCTION IN THE ROAD. SUDDENLY MY BRAKING ASSISTANCE ACTIVATED CAUSING MY CAR TO COME TO A COMPLETE STOP. I CHECKED MY SURROUNDINGS, NOTHING WAS IN THE ROAD, BESIDE ME, OR BEHIND ME. NISSAN HAS NOT CLAIM RESPONSIBILITY FOR THIS SENSOR ERROR. INSTEAD TOLD ME THAT THERE WERE DAMAGES TO MY BUMPER, WHICH WAS HARD TO BELIEVE. I WAS RECOMMENDED TO CONTACT MY INSURANCE COMPANY. AN APPRAISER FOUND NO DAMAGES TO MY CAR OR BUMPER. CASE HAS BEEN DISMISSED BY INSURANCE COMPANY.