Infiniti QX50 Complaints

2016 Infiniti QX50
  • Date of Incident: Jun-13, 2024
  • Date complaint filed: Jun-13, 2024
  • Failed components: ENGINE, FUEL/PROPULSION SYSTEM, and POWER TRAIN

So after my initial report about my engine catching fire on the highway, i received an invoice for $5,000 for a used engine with 80k miles on it; plus another $2800 for the service fee. I already put down about $3900 for the engine repair. The mechanic sent me pictures of the engine with the holes on it that caused the damage (or the holes might have happened during the fire). I’m attaching photos sent to me, from my mechanic, showing the holes/damage on the engine, for your consideration and a photo of the initial repair bill (including receipt of my deposit) for your review … also, i still need to pay another $4300 to pick it up, but he said my check engine light is still on due to a transmission, that may be related to the valve body failing. What are these qx50s still being sold?? On the car forums and youtube, there are so many issues with the engines and the transmissions (including the 450k that are currently under investigation). And their consumer affairs dept is extremely hostile about the situation, when you call into the infiniti office/headquarters. These defective engines/ transmissions need to be recalled, as soon as possible. They’re extremely dangerous and infiniti is not taking responsibility for the problem. Why is the govt not intervening on behalf of the infiniti owners??

2016 Infiniti QX50
  • Date of Incident: Apr-15, 2024
  • Date complaint filed: May-31, 2024
  • Failed components: AIR BAGS

The contact owns a 2016 infiniti qx50. The contact stated that while driving or parked, the “air bags deactivated” and “seat belt detached” warning lights illuminated. The vehicle was taken to an independent mechanic and a local dealer. The independent mechanic performed an electronic reset on the vehicle and the lights were off for one day; however, the failure reoccurred. The independent mechanic related the failure with the nhtsa campaign number: 16v244000 (air bags) however, the vehicle was not included in the recall. The local dealer diagnosed the vehicle and confirmed a failure with the sensor module for the air bags. The contact approved the repair; however, the vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 54,000.

2016 Infiniti QX50
  • Date of Incident: May-17, 2024
  • Date complaint filed: May-22, 2024
  • Failed components: POWER TRAIN:AUTOMATIC TRANSMISSION and POWER TRAIN

The contact owns a 2016 infiniti qx50. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The contact stated that following the warning light illumination the vehicle hesitated to accelerate. The vehicle was taken to the mechanic and diagnosed as a speed sensor module located inside the transmission. The contact was advised the module being in the transmission caused the transmission to overheat requiring valve body replacement. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was approximately 110,000.

2016 Infiniti QX50
  • Date of Incident: May-10, 2024
  • Date complaint filed: May-22, 2024
  • Failed components: ENGINE

The engine blew up on the expressway. And this has happened for many other qx50 drivers.

2016 Infiniti QX50
  • Date of Incident: May-10, 2024
  • Date complaint filed: May-13, 2024
  • Failed components: ENGINE and FUEL/PROPULSION SYSTEM

There are 2 check engine codes that came up as an issue for my vehicle, out of the blue: p0720 and p0500. I reached out to my mechanic and he couldn't fix it. So my plan was to take it to the dealership at the end of this month; however, while driving the vehicle back from my sister's house, the bottom of the car caught on fire and i had to pull over to jump out the car with my children. Called 911. The police and fire dept came, but the fire had gone out by that time, so the officer had the vehicle towed off the highway. Looked into the issue online and apparently it's very common. One infiniti dealership said that he fixes about 30 per month. Why didn't infiniti issue a recall for this very serious, hazardous situation? Where is their due diligence to fix this problem for their customers? Why are they letting so many vehicles fail? What happened to reasonable due care? Is it not enough that they are aware of this issue and won’t recall it, but what about the physical danger that they are putting us in? And the emotional distress they caused my children, having to jump out of their vehicle on a highway in the middle of the night? Doesn’t infiniti have a minimum safety requirement of due care to mitigate hazards for its customers?

2019 Infiniti QX50
  • Date of Incident: May-03, 2024
  • Date complaint filed: May-03, 2024
  • Failed components: ENGINE

While driving i heard a roaring noise from my engine and my car’s a/c stopped cooling. I have no warning messages from car regarding the engine. The noise only stops once the car is fully powered off. I recorded a video of the noise and alert panel that shows no warnings/issues. Will be contacting my local service department.

2019 Infiniti QX50
  • Date of Incident: Mar-24, 2024
  • Date complaint filed: Mar-27, 2024
  • Failed components: ENGINE and POWER TRAIN

About five months ago, while driving on the highway, the care would say it's in drive, but sounded like it couldn't get out of 1st gear and i'd get high rpms. Thankfully there was stop-and-go traffic and i didn't have to exit pull off the highway or hit high speeds. I exited at the next exit and, as soon as the car stopped, it wasn't possible to get it into gear. Eventually the car started and i was able to get into gear and drive it using manual drive mode. Once at the dealership we were told it was a bad vcr and they needed to replace that to get it going. That was around 38,000 miles. This most recent incident, i had just gotten onto the highway when i started to hear a low whiney noise when pressing the accelerator. I only had a few miles till my exit and decided to continue, thinking it might just be debris or something. After exiting, i literally rolled into the gas station because the car, despite being in drive, was not in gear. The car stalled and i couldn't get it started, or i could get it started, but it refused to go to neutral to allow me to push it out of the way. Eventually, the car started and i was able to put it into drive. Thinking it was the same issue, i planned to drive it the 2 miles home. I made it to the first traffic light and the car turned off, leaving the me stranded in the middle lane of the road. I called the police and tow trucks to come help me get the car moved (no one knows how to put the car into an emergency neutral position including the 2 officers, 4 tow truck drivers and an infiniti mechanic that was driving by). Eventually the tow truck came and i was able to drop it off at the dealership, who have told me there is "a chunk of bearing material in pan with copper particulates. " i'm currently around 40,000 miles.

2019 Infiniti QX50
  • Date of Incident: Feb-29, 2024
  • Date complaint filed: Mar-15, 2024
  • Failed components: ENGINE

Engine acceleartion issue. Rpm goes high but car struggle to speed up.. At first it happened when car was at stop light, struggle to move forward.. Took to grubbs infiniti.. At first,dealer could not replicate the issue, but luckily i had taken the video of the issue i had. Than the dealer was finally able to experience the issue themselves and replaced the transmission thinking that was the issue. I took the car after repair and within 3-4 days i had the same issue. This time i was driving in a freeway at 60 mph. When i hit the gas pedal to accelerate faster,the engine rpm went high but instead of speeding up, car felt like slowing down. So i exited the freeway to service road. Once the speed went down to 20mph, it didn't go any higher than that. This time there was a check engine light on i took it back to the dealership. They again could not replicate the issue and just did the ecm software update. I took the car home but after driving less than 20 miles,the car had the same issue. I again took it back to delearship. This time they are replacing something called vcr.. Still waiting now

2021 Infiniti QX50
  • Date of Incident: Feb-07, 2024
  • Date complaint filed: Mar-15, 2024
  • Failed components: ENGINE

I purchased this 2021 qx50 infiniti on [xxx] and have experienced consistent engine knocking. In checking out this problem, i have found that it is apparently a widespread problem with the engine in 2021 qx50 vehicles and can possibly lead to engine lock up and engine failure. The engine thus far has not locked up or failed. I have reported the issue to the dealership, infiniti of gwinnett located at 3090 satellite blvd, duluth, ga 30096 and am scheduling to have the dealership investigate the problem. Needless to say this is a major concern and if there are ongoing nhtsa investigations and findings i definitely want to be made aware of same. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6)

2022 Infiniti QX50
  • Date of Incident: Jun-27, 2023
  • Date complaint filed: Mar-08, 2024
  • Failed components: POWER TRAIN

See attached document for complaint

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