54 problems related to equipment have been reported for the 2018 Nissan Altima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Nissan Altima based on all problems reported for the 2018 Altima.
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.
I purchased a used 2018 Altima yesterday. During the test drive and during my commute this morning, I received an error message "radar unavailable front obstruction". Upon research, this is a problem known to Nissan with the bosch sensor mounted in the front grill.
While driving the vehicle, notification of "Feb: unavailable front radar obstruction" comes on and stays illuminated for upwards of 5 to 10 minutes before turning off. This occurs when there are no vehicles in front of mine and no road hazards that would have triggered it to turn on. I feel that this is a big safety issue with the way the car is designed to stop when it detects a hazard. This started out randomly over this past summer and in the last week, has been a daily occurrence. When I spoke to the dealership about it, the soonest they had an opening to address it is a month away. No a happy camper, feels like they are not as concerned as I am with the safety of my vehicle. Brake switch failure less than one year of ownership of the vehicle. Unable to push the brake pedal in to start the vehicle. The only way to get the switch to release is to tap on it with a hammer. This issue has been occurring fairly regularly for the past week before I could get it to the dealership today. (is supposed to be fixed tomorrow??) at one point, the vehicle failed to start altogether. Popped the hood to jump start it, and noticed black powdery stuff on the top of the battery as though the batter had gotten too hot and boiled over possibly. The dealership test the battery and told me that my battery is fine and fully charged. This was after I had it on the charger for several hours yesterday so that it would start for me to take it to the dealership.
While driving vehicle a notification of �Feb: unavailable front radar obstruction� is constantly coming on lcd screen on dashboard while a check light of 2 vehicles in head on collision constantly shows up and leaves the dashboard.
Front sensor keeps going off and on even when not around any cars. . . Backup camera cuts off and on while reversing.
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.
The forward collision warning component becomes �unavailable� when there is nothing (no dirt or rain, snow) blocking the sensor. I keep the sensor wiped clean and on a nice sunny day, while vehicle is in motion on the highway, boulevard, residential streets. The sensor warning will tell me �fcw unavailable� with the �symbol� of two cars crashing. It goes on for a while then off then back on again. In the photo below, I'd just pulled over to take the picture of the symbol. (this was 08/20/19. 10 days after my car purchase 08/10/19) at that time the symbol only is showing. I'd just turned off the boulevard from driving 40mph. Can't get a pic of message while car is in motion, of course. This is now a regular occurrence for the 3 months I've had my car. Taking into mechanic to get it checked end of November 2019. This warning occurs at various speeds.
2018 Nissan Altima - front radar unavailable. This vehicle will have the intelligent brake assist unexpectedly be disengaged. A warning light and sound will be activated indicating that the the brake assist has been rendered useless as well as the cruise control function. This is an every drive occurrence.
Front crash camera. It goes off for no reason. If I'm driving on the freeway & it just goes off, if I'm going on a flyover ramp it picks up the ctb (concrete traffic barrier) & goes off again. It don't matter where or what it just goes off.
Vehicle in motion, the flaw is in the front radar/distance sensor unit allows the sensor to frequently deactivate itself, disabling cruise control and emergency braking. When the sensor turn itself off, drivers are seeing a warning in the dash that says, �front radar unavailable due to obstruction. �.
The 2018 Nissan Altima sv has the error "unavailable: front radar obstruction. " after taking the vehicle to a mechanic they determine the part is faulty and no system errors are present. (document can be uploaded upon request).
Was traveling over snowy mountain pass. My mileage was 65 with heavy traffic. The forqard crash warning system failed and said unavailable then reported I had been in a front end collision. Which wasnt true as I was still traveling then the car kept automatically applying breaks. This could of caused a severe crash had the roads been icy as it could of put me in a spin causing a serious crash.
The automatic emergency braking light arbitrarily comes on and stays on. I can be at a full stop and the light comes. See the attached picture. I can be driving and the light comes and stays on. For the most part this happens in just about any driving conditions.
The front end obstruction light and warning sound come on everytime I drive my vehicle, then go off and come back on. I can be driving at any speed and with nothing around me. Sometimes it causes my car to slow down.
Some unauthorized person opened the trunk by a remote devic e. Car was parked, engine off.
While driving during rain conditions, the forward radar repeatedly disables itself with an "obstruction" warning, which also disables the automatic emergency braking function. This issue does not present during dry weather conditions, and does not happen while transiting through a car wash. This problem was first noted in October 2018 when driving in rainy weather for the first time. The vehicle was new, with 00004 miles on the odometer, at the time of first possession in may 2018. As of 1-10-2019, the odometer reads 14970.
Aeb will not apply break when narrowly missing a car that ran a stop sign. The aeb "automatic emergency breaking" does not work at any time, or any situation. Dealership in shelby,nc. Nissan ,refuses to fix not even jad it a month yet. Sincerely, sidney ray tuggle,jr.
Car is #1 of the top 10 stolen cars. Consumer was not alerted to that prior to purchase.
Since the time this vehicle was new the frontal automatic emergency braking (aeb) system turns itself off randomly while driving regardless of weather or road conditions. On other occasions it gives false warnings causing the vehicle to automatically apply the brakes to avoid what it considers an imminent collision hazard. Nissan has also issued service bulletins regarding this issue with other Nissan models equipped with the aeb system.