2019 Infiniti QX50: won't start

Filed Oct 6, 2026 · Engine, Transmission · TX

While driving on the highway the vehicle would not accelerate and the oil pressure light came on. After pulling over we noticed a slight burning smell and cut the engine. After a few minutes we tried to start the car again and it would not start. Vehicle was towed to independent repair shop who told us the engine had seized. We then learned of the current recall effecting this make model and year of vehicle. The vehicle experienced the same series of events outlined in a service bulletin for the recall. Vehicle was then towed to local Infiniti dealer and they were told the engine is seized and asked to drop oil pan per recall guidelines to confirm and diagnose. After not hearing from dealer after 2 weeks I follow up to be told the vehicle had not been looked at yet and they would get it in that day and call me no later than next day. Once week goes by and they still had not contacted me. I contact them and am told the only thing wrong with my vehicle was a dead battery and that would cost X amount to replace. At that point my car had been sitting in the summer sun for 3 weeks, of course the battery is dead. I reluctantly agree to the repair. After another week I follow up on the repair and am told after replacing the battery the car still will not start and I asked again about the recall diagnosis. After another week, we contact them and am told the car shows information consistent with bearings recall and they submit to Infiniti to approve. A repair timeline is discussed at this time. 24 hours later we are contacted by dealer for first time and told it now does not fit under recall. Have a case with Nissan consumer affairs. We have asked several times for work order and photos of what they are looking at and have not received. Dealer is now asking for $300 plus dollar diagnostic fee to see what is wrong. They say sludge caused engine failure and not recall issue. It has been 46 days at this point and no resolution. Per recall, sludge can be caused by bearings issue

Filed Jan 5, 2026 · Engine, Transmission · TX

A few months ago, I received an email from CarFax letting me know that my vehicle, a 2019 Infiniti QX50 with 2.0L Turbo Engine had a major recall (the federal safety agency Recall Campaign No. 25V‑437). The letter indicated the recall was due to issues with the engine bearings which could lead to a catastrophic failure. I wasn't sure what this meant, so I took the car to Austin INFINITI. The technicians checked the oil pan to see if there were issues. My understanding is that the oil pan should have been removed, drained of all oil to ensure there were no issues that could lead to the catastrophic failure of the engine. None of this was done. I was given my car back and told all was okay. Unfortunately On the evening of November 10, 2025, my vehicle’s engine suddenly seized while driving at highway speeds. Fortunately, I was able to coast onto the Frontage Road. For my protection, the Police Department arrived quickly to park police vehicles in the front and back of my car with their lights on to avoid a nighttime collision or worse. I had no idea why my engine suddenly lost power while driving down the highway and continued to refuse to start despite repeated attempts to restart the vehicle, the engine would not start. I was scared to death and this situation has exacerbated my current diagnosis of PTSD for which I am currently in treatment. This was a horrifying event that could have cost me my life. I can't eat or sleep and experience nightmares that my car died, then I am hit by a car driving at highway speeds as I tried to exit the vehicle. My wife and I are both terrified of driving the car now. I tried to resolve the issue with my local INFINITI dealership and even contacted NISSA/INFINITI executives. I was met with disregard, disrespect and a $1,700 bill to replace the starter that burned out as we kept trying to start the car. The starter burnout was a secondary cause due to the primary issue of the engine seizure. Infiniti disagreed and insisted on the $1,700 for the starter.

Filed May 22, 2025 · Engine · CT

Car wouldn't start and been in the dealership for 2 weeks now where purchased due to purchasing a extended warrantee they need to look at it first. after several tech asses the problem they say the timing chain jumped a tooth and engine is shot. car has 66000 miles on it. I purchased with 48K so naturally i bought a extended powertrain warrantee that they say wont cover the cost of replacement due to not having the oil changed every 5K miles. I get it done about 8 or 9K due to using synthetic oils that say they are guaranteed for 15-20K miles. No lights or indication engine issues prior to my wife just trying to start the car one morning.

Filed Mar 5, 2025 · Engine, Transmission · KS

On February 28, 2025, while driving home form work in my 2019 Infiniti QX50, on a 4 lane highway, I slowed to turn across 2 lanes of oncoming traffic to a side county road. I made it across the highway and the vehicle immediately lost all power. I coasted to a stop on the side of the road. I tried to restart the car and it would not start. I called for a tow and had it taken to the nearest repair shop. The vehicle was inspected and I was informed the engine was blown and would need to be replaced. Prior to this happening, there were no sounds, indicators or warnings of any possible issues. I have owned the vehicle since February 2020. It has always been maintained on schedule (records available). In fact, the vehicle was thoroughly inspected by Infiniti in October of 2024, when I had to have the rear lift gate motor replaced. I was told everything looked good, timing belt had no wear, there were no leaks or concerns. The only recommended services at that time were to change the brake fluid and antifreeze. The vehicle is available for any and all requested inspection.

Filed Dec 16, 2023 · Engine · GA

I was driving on the highway and the engine started to make a humming sound I would say. Within the next 3 to 4 miles I started losing forward power, and the noise started to get louder. I was afraid my car was going to die on the highway so I stayed in the far right lane so I could coast into the shoulder if I had to. Thankfully, there was an exit and I was able to get off and pull off onto a street at which point it was a louder knocking sound coming from the engine. I drove another block and the check engine light came on and I was getting less power as I pushed the gas pedal. At that point I parked the car and had it towed for repair. This all happened on October 9, 2023. Later that week, I was told by the dealership that I needed a complete new engine that I had thrown a rod in the engine. The car was only four years old and had 75,000 miles on it. Infiniti did help pay part of the bill, but I still had to pay a good portion of the repair and oddly enough the morning after I drove it home, the car would not start. The car was towed back to the dealership. I needed a new starter. That too has since been repaired. I decided to report this after seeing an article this morning regarding an investigation into Nissan for engine failure problems in my model of car.