2023 NISSAN ARIYA Electrical System Problems

DEFECTIVE COMPONENT & FAILURE MODE The vehicle suffered a failure in the 12-volt battery system, potentially involving the DC-to-DC Converter or the associated charging logic. This malfunction caused the lead-acid 12V battery to be severely overcharged and boiled while the vehicle was plugged in and parked. CATASTROPHIC SAFETY HAZARD The failure resulted in the release of highly toxic and flammable gases into an enclosed residential space (my garage), posing an immediate, life-threatening risk: TOXIC GAS POISONING: The boiling battery released a massive amount of Hydrogen Sulfide gas, identified by the distinctive, strong rotten-egg odor. H2S is a cellular asphyxiant and is fatal at high concentrations. EXPLOSION/FIRE RISK: The boiling battery also released highly flammable Hydrogen H2 gas, creating an explosion hazard inside the closed structure of the home. CHRONOLOGY OF EVENTS Tues, 11/11/25 (approx. 5:00 PM): Noticed strong rotten-egg smell in the garage while the vehicle was charging. 5:30 PM: Called local gas company due to fear of a gas leak. 6:30 PM: The smell was still strongly detectable, indicating dangerous lingering concentrations. Suspecting the car, immediately unplugged. 7:00 PM: Identified the car as the source and moved the immobilized vehicle outside. 9:05 PM: Contacted Poison Control due to chemical inhalation/exposure risk. (immediate / risk of delayed symptoms). MANUFACTURER CONTACT & CURRENT STATUS Manufacturer Contact: I have notified Nissan Consumer Affairs of the safety hazard and received Case Number: 55990119. Current Status: The vehicle is currently immobilized and will be sent to dealership for repair. The defective components (battery and converter) are intact. Medical Status: I sought medical consultation and am monitoring for delayed neurological or respiratory effects (pulmonary edema) known to occur after H2S exposure.

I had just left the [XXX] on the [XXX] when our Ariya suddenly lost power at highway speeds. It felt like a very dangerous situation, because there are very long distances between exits in this area, and the shoulder is somewhat narrow in spots. The high voltage battery had been DC fast charged to 95% at said service area minutes earlier. But the display suddenly went to 0%, turtle mode appeared, and the message “Warning Service EV System” showed on the display. For some reason, the windshield wipers also activated momentarily, despite it being a clear summer day. It was not possible to maintain speed, as the car had a power limit of about 10%. I was fortunate that we were able to limp the ~10 miles to the next exit behind a very slow RV. However, the car slowed down dramatically when going uphill. It was a very white knuckle experience. Once we made it off [XXX], I was able to slowly coast into a gas station parking lot and collect myself. I tried turning off the car and turning it back on, but the message did not go away. Since I also carry tools when traveling, I then tried disconnecting the 12 volt battery for a minute and reconnecting it. Fortunately, that made the error go away. Having a suspicion that the 12 volt battery could be at fault, I replaced the OEM flooded lead acid battery with an AGM battery at my own expensive. The next day, I took the vehicle to Poughkeepsie Nissan in Wappingers Falls, NY to be looked at. The write up is included with the submission. The dealer was not able to duplicate the issue, but they did see error codes stored within the car’s computers. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

my car isnt listed for a current recall but should considering the software update does not match. Recall Reference: P4A30, P4A31 should have included my call as i dont have that update. Update 283C36PA5E is before the one shown in the recall.

This is the fourth time this has happened to us during normal driving. I pulled out onto a highway and suddenly with no prior warning, the car lost all power and went into what I can only describe as a "limp mode" and wouldn't go above 5 mph. I had to quickly pull off the road as traffic was catching up at highway speed. The dashboard flashed "Malfunction, see owners manual" and we had an orange triangle with an exclamation point as well as a circle with exclamation point with a wrench next to it. The traction control light and car with exclamation point were also lit up. After limping to a cross road we turned the car completely off for 5 min and when we restarted it, it worked normally. The same thing happened July 25, 2024 and I had the car in the dealership. They said they could not recreate the issue even though I showed them video of the dashboard acting strangely. The service manager said he believed something had blocked the front bumper sensor and that it should be fine now. We have already performed both software updated recalls and since then, it has happened to us twice more. The battery was at around 80%, had just been driven by my wife for around 30 min with no issues, was turned off in the driveway for about 15 min and then we left again. It was extremely cold during this issue (temps around 10 degrees F), but this has also happened during normal temps in the summer and fall.

Car losing power while driving, and powering down to zero. Also slowly goin backwards while in standard drive mode. Dealership has been troubleshooting for 3 weeks and not fix has been found.

the car lost power in the middle of the freeway -and decelerated; in a highway with speed limit of 65mph while driving in I-680, all of a sudden the car slowed down from 65mph all the way to less than 20mph - displaying "power reduced - 0% battery" ; even it was recently fully charged - I was able to drive the car - back at 20mph speed - went straight to the Nissan dealer/service - where I left my car - and. was given a loaner car. the warning lamp ONLY appeared as soon as the car decelerated / slowed down

I was on the highway and the car completely shut off. My electric battery which was at 50% and over 150 miles died. I had to veer off quickly to the side of the road and my steering wheel then locked. I've seen some forums on Reddit of this happening. The dashboard flashed "EV System Off" and the miles and % battery went to zero. It was incredibly scary since it was at night and the potential for a serious accident could've occurred. I had to be towed as well and the police wanted me off the road as quickly as possible so they called their own local towing company to do so. The Route 9 Nissan in MA looked at it and simply said it needed a "software update". Which is alarming because my whole car shut off. Nissan corporate and their roadside assistance from beginning to end have handled this horribly. I am over 8 days removed from the report and still nothing has been resolved. They even had the gumption to tell me on the phone that the towing charge I got would be a courtesy and they aren't sure if they could give it to me.

The contact owns a 2023 Nissan Ariya. The contact stated while driving approximately 10 MPH and attempting to park the vehicle, the vehicle stalled. The contact stated that the "EV System Off" warning light was illuminated. The contact was unable to restart the vehicle and had the vehicle towed to a local dealer. The dealer diagnosed the vehicle and determined that the battery needed to be replaced. The contact was not sure which battery was replaced. The vehicle was repaired. The contact stated that the failure reoccurred. The contact had not taken the vehicle back to the dealer. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 4,149.

Mileage: 4,149

Electric Vehicle had 59% and then suddenly dropped to 0% and gave a charge message.

Driving on the freeway this morning at 72% charge, approximately 5 miles into my 41 mile commute, message appeared on dash that battery charge was critically low, charge immediately. When this appeared the car was no longer showing the 72% charge, but 0% instead. The initial error was then replaced with "Warning Service EV System Power Reduced" and still showing 0% charge. Under reduced power I made it to a charging station 3 miles away and after a large number of attempts, finally got it to start charging. Immediately, the charge % returned to 70% and successfully charged to over 80%. To be safe I returned home instead of trying to finish my commute, as it was just past 3:00 AM and I didn't feel safe trying to complete the drive. I've also noticed since this has occurred the Nissan Connect app is no longer updating from the vehicle. If this is the same problem that others seem to have had, this becomes a highly dangerous situation both in the safety of the driver/passengers, but also everyone else on the road as the car goes to a reduced power mode!

Car screens suddenly shut down while driving on highway with no instrument cluster and no navigation screen and vehicle lost entire power excluding drive train. The cars screens both began to flash and speakers popped loudly with beeps and headlights began to flash along with interior lights all while going 80mph

After multiple repairs on my vehicle. We have received a new error today. Showing e-Step system failure, ABS light, Brake system failure, forward collision system off, rear braking system off & traction control system off.

Vehicle displayed a "Service EV system" while driving on the highway. Battery state of charge dropped from 60% to 0%. Pulled over and turned the car off. After 5-10 minutes, I turned on the car and the issue disappeared.

While driving on the highway on Dec.2 2023, my car suddenly displayed "Service EV Error" and "Reduced Power" warnings, along with the battery level to plummet from 89% to 0%. Upon noticing the warnings, I promptly activated hazard lights and maneuvered to the emergency lane. However, my attempts to maintain control were met with a gradual deceleration of the vehicle. Despite repeatedly pressing the acceleration pedal, the car failed to respond as expected, creating a hazardous situation on the high-speed highway. The urgency of the situation heightened as the reduced power hindered my ability to keep pace with traffic flow on the highway. The potential for a high-speed collision or other safety hazards increased, given the car's limited control and responsiveness. This occurred in an environment where other motorists were navigating the highway at significant speeds. After multiple unsuccessful attempts to address the issue, I reached a ChargePoint at a speed of 25-35 mph, but the connection failed, leaving the battery completely depleted. Seeking assistance from the dealership proved challenging initially, as they couldn't pinpoint the problem. With unresolved safety risks, the dealership recommended a tow. Unexpectedly, after restarting the car, the issues disappeared, and the battery level returned back to 89%. During a 250-mile drive post-incident, no further problems occurred. Days later, I brought the car to the service department for further inspection. They identified it as a junction box problem, ordered a replacement, and I am currently awaiting updates from them. They did not mention that the problem was reproduced by them but did mention they have some other customers encountered similar issue on their Ariyas.

My Ariya 2023 died on middle of Interstate while I was on bridge during rush hour battery was at 54 % when this happened. I had the vehicle towed to a charging station thinking i ran out of charge but car didnt charge. After couple hours car started at 54% battery even though I was not able charge.

The contact owns a 2023 Nissan Ariya. The contact received notification of NHTSA Campaign Number: 23V657000 (Electrical System) through the Nissan App. The contact stated that the dealer sold him the new vehicle with an open recall. The dealer was made aware of the issue but informed the contact that they were unable to perform the software update due to the software being inoperable. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

When I got in the vehicle after work on 11-22-23, it displayed a “EV System” error alert and “Power Reduced” alert. The vehicle would only accelerate extremely slowly and would only go about 25 MPH. Trying to go up hill to my house it would only go maximum of 10 MPH. I barely made it home. I left it at the dealership the next day (which was a national holiday) and they examined the car on 11-24-23 but could not find anything wrong. I have been told to drive the car and bring it back if the message occurs again. My EV battery seems to be no longer holding a good charge at this time. I am concerned about the safety of the vehicle at this time.

The update should be provided over air

While coming to a complete stop using manual braking the vehicle appeared to lose power. The infotainment system went black and reset. The car itself did not need to be restarted and the manual brakes were still responsive. Additionally there is a recurring loud popping/cracking noise during normal driving (not charging).

The car spontaneously shut down. "EV OFF" displayed on the screen. I was in the middle of the road and unable to turn on the car or shift into neutral to push it off the road. I had to wait over an hour for a tow while in the road. This appears to be an increasing problem as many owners are reporting the same issue on the Nissan Ariya electric SUV Discussion Group page on Facebook.

Car abruptly changed from mph to kmh. All safety aspects stay in mph, including speed limit and alert. So while on highway going 65mph, suddenly speed said 116kmh. But speed alerts were still saying “65”. Pro pilot on and car abruptly slowed down towards 65kmh on highway. Only way to change mph to kmh and back is to have car at complete stop, scroll to menu on steering wheel. Click it. Scroll to language. Click that. Click three more times. These options are completely locked out while the car is moving. Due to the danger of this happening on the highway, nearly avoiding getting rear ended, took to dealer. They reported nothing wrong. Reported to Nissan who said nothing wrong. Happened again today, not on Highway luckily. There are online posts of this happening with other Ariyas, but not on Highway. Again, if wanting to do this on purpose the car must be stopped and at least five explicit actions. Moreover, the safety measures on the car do not discriminate units, only numbers which makes this go from an annoyance to something that almost caused a high speed accident. Nissan has again been made aware, but lacks responsiveness.