2023 Nissan Frontier

Muffler developed hole in the top of it prematurely and melted the main wiring harness due to a known design flaw. The vehicle is still at the dealer awaiting repair. All warning lights came on, 4 wheel drive was disabled, center console lost power and hvac was disabled. Safety was put at risk as this happened on the nys thruway and the vehicles main wiring harness was actively melting/shorting while driving. The shorts disabled all Safety features like lane assist, detections, and abs. Transmission would also not down shift properly leaving me unable to safely accelerate. Im unsure if the tail lights were still operational or not but wouldnt be surprised if they weren't as many other systems to the rear of the vehicle were fully disabled. The truck is at the dealer I have a quote and video of the muffler and melted wiring harness. The truck is not safe to drive but the problem is constant. This is a known problem by nissan as theres a tsb to place a larger heat shield over the wiring harness.

I purchased a pre-owned certified vehicle in June of 2025 it was a 2023 model with approximately 23k miles on it. In August of 2026 I was driving on the interstate and the vehicles warning lights came on and the vehicle shut down completely at a speed of 70 mph. The safety flashers quit working along with the headlights leaving the vehicle totally dark on a remote section of Interstate at night. I had the vehicle towed to a Nissan dealership and I was sent a video of what happened from the certified Nissan technician. I can provide the link to the video upon request. The technician stated in the video that the muffler had developed a very large hole in it and the heat from the exhaust coming from the hole melted the vehicles wiring harness. I feel this is a very dangerous situation as it could cause a vehicle to catch fire. It also caused the emergency lights to not work and all of the other vehicle systems stopped working. I did some research online and found that this is a well documented issue with this make and model of vehicle. The manufacturer has even went as far as offering an additional heat shield for purchase which I only recently found out about. 1. I have the old exhaust system available for inspection. 2.The vehicle could of caught fire of we could of been hit by another vehicle since it was night time and the lights quit working. 3.I am unsure but there are many well documented cases available from a simple online search. 4. Just the service center. 5.It was sudden and there were no warnings and the vehicle had passed a certified inspection 11 months prior with nothing noted.

The power door lock system intermittently malfunctions. During the initial failure, the passenger rear door lock seized in the unlocked position and could not be manually operated. The vehicle was taken to an authorized Nissan dealership, where all three passenger door lock actuators were replaced. Following the repair, the seized lock condition was resolved; however, the underlying malfunction continues. The passenger front and passenger rear doors will unlock electronically but will not lock using the key fob, interior lock switch, or intelligent key functions. The driver rear side door does not respond to electronic lock or unlock commands. The only way to secure or access the affected doors is by manually operating each individual door lock. The malfunction affects three of the four doors simultaneously and occurs intermittently without warning. No warning lights or messages are displayed when the failure occurs. This defect creates a safety concern because the vehicle cannot be secured as designed, and passengers may not be able to quickly access or enter through an affected door without manual intervention. In an emergency, delays caused by manually locking or unlocking doors could impede access to passengers or evacuation from the vehicle. The issue has been reproduced multiple times and confirmed by an authorized Nissan dealership. Although the passenger door lock actuators were replaced, the malfunction persists, indicating the repair did not correct the underlying defect. The vehicle remains available for inspection.

Vehicle door locks causing driver and passengers to exit the vehicle. Have already had front passenger door and driver side back passenger door fixed. Now driver door will lock and once driver inside, is unable to exit vehicle. In the event of emergency, anyone in vehicle could parish because they would not be able to exit the vehicle.

The contact owns a 2023 Nissan Frontier. The contact stated that while driving approximately 3 MPH and reversing(R) out of a parking spot, the messages "Key Malfunction" and "Crash Detected" were displayed. The contact pulled over and attempted to turn off the vehicle; however the vehicle failed to turn off. Additionally, when the contact shifted to park(P) the gear shift indicator failed to indicate that the transmission was in park(P). The contact attempted to shift to drive(D), and the vehicle failed to move forward. The contact stated that a passerby helped to turn off the vehicle by disconnecting the battery terminals. The vehicle was towed to a dealer, and it was determined that the battery needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The contact stated that the same messages were displayed, and the transmission slipped out of gear. The contact had taken the vehicle back to the same dealer who cleared the codes and stated that the battery was in good condition. The vehicle was repaired; however, the failures reoccurred. The contact had taken the vehicle to an independent mechanic, who was unable to diagnose the vehicle. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 58,000.

We have a fleet of 2023-2025 Nissan Frontiers. Starting in December of 2024 we began having problems with the vehicles electrical system going wild and shutting the trucks down. It causes all of the lights to come on and the truck to stall and not restart, We did not realize that we had a problem until it happened to multiple vehicles over the last several months. A few of them were brought to the dealership where we were told they could not find any problems and just replaced the batteries. So, when some of the others did it, we just replaced the batteries ourselves. This week asked again if there was a known issue and were told Nissan only knows of a battery drain issue. These vehicles are shutting down sometimes while our people are driving them. They also try to restart themselves sometimes. They are automatically applying the breaks when this happens wile the ABS light comes on. This is an extremely dangerous situation for our fleet drivers as well as the motoring public. It has happened to 10 of the 15 Frontiers that we own.

We have a fleet of 2023-2025 Nissan Frontiers. Starting in December of 2024 we began having problems with the vehicles electrical system going wild and shutting the trucks down. It causes all of the lights to come on and the truck to stall and not restart, We did not realize that we had a problem until it happened to multiple vehicles over the last several months. A few of them were brought to the dealership where we were told they could not find any problems and just replaced the batteries. So, when some of the others did it, we just replaced the batteries ourselves. This week asked again if there was a known issue and were told Nissan only knows of a battery drain issue. These vehicles are shutting down sometimes while our people are driving them. They also try to restart themselves sometimes. They are automatically applying the breaks when this happens wile the ABS light comes on. This is an extremely dangerous situation for our fleet drivers as well as the motoring public. It has happened to 10 of the 15 Frontiers that we own.

We have a fleet of 2023-2025 Nissan Frontiers. Starting in December of 2024 we began having problems with the vehicles electrical system going wild and shutting the trucks down. It causes all of the lights to come on and the truck to stall and not restart, We did not realize that we had a problem until it happened to multiple vehicles over the last several months. A few of them were brought to the dealership where we were told they could not find any problems and just replaced the batteries. So, when some of the others did it, we just replaced the batteries ourselves. This week asked again if there was a known issue and were told Nissan only knows of a battery drain issue. These vehicles are shutting down sometimes while our people are driving them. They also try to restart themselves sometimes. They are automatically applying the breaks when this happens wile the ABS light comes on. This is an extremely dangerous situation for our fleet drivers as well as the motoring public. It has happened to 10 of the 15 Frontiers that we own.