Infiniti QX50 Complaints (2019)

145 consumer complaints on file.

#11673639July 15, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2019 Infiniti QX50. The contact stated while driving 40 MPH, the vehicle experienced a temporary reduction in engine power. The contact was able to pull over to the side of the road. The contact stated that the check engine warning light was illuminated. The failure became persistent with significant reduction in engine power while attempting to accelerate. The vehicle was taken to the dealer, who diagnosed that the variable compression actuator had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and offered a partial payment for the repair. The failure mileage was approximately 49,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672369July 9, 2025
ENGINE, ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
In November 2024, my 2019 Infiniti QX50 experienced a sudden and severe mechanical failure while driving. The vehicle unexpectedly lurched forward and then came to a complete stop in traffic. At that point, I was unable to shift the car into neutral or any other gear, which resulted in obstructing traffic. The vehicle was towed to a local mechanic, who diagnosed a total engine failure and quoted repair costs between $15,000 and $20,000 related to a VRC component. Recently, I became aware of a recall concerning similar engine issues affecting certain Infiniti QX50 models. However, my vehicle’s VIN is not listed among those affected by the recall. Given the severity of the failure and the potential safety risks, I would like to formally file a complaint regarding the 2019 Infiniti QX50 to ensure this issue receives proper attention. Thank you for your time and consideration.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11671724July 7, 2025
ENGINE
Banister Nissan of Chesapeake Greenbrier and Priority Infinity of Greenbrier in Chesapeake Virginia diagnosed and Confirmed Engine failure , Low Compression to engine Bearing failure to engine . VC-Turbo engine to be exact Date confirmed June 20,2025 Car showed no visible signs prior to no longer starting up , no check engine light , no codes , and after being diagnosed dealer confirmed “your engine has low compression due to your bearings failing “ Bearing failure while driving could have been a serious accident caused and possible injury Mileage :58,000 miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11671267July 4, 2025
ENGINE
Engine failed. Metal shavings found in oil pan at Infiniti dealer. Mechanic recommended replacing the engine. It is available for inspection. The engine failure happened on a single lane stretch on mountain highway. by the grace of god I was able to get the car into a center turning lane and we were not hit by other vehicles at highway speeds or ~45mph. no warning lights came on just a noise and then it stopped. 4 days prior the vehicle was inspected at the dealership to ensure it was safe for the trip. All maintenance was confirmed to be in good order. The date on the inspection is the date it was emailed to me however the date of inspection was June 26th.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664372June 2, 2025
ENGINE
Engine made a pop sound while getting onto the freeway. It started to slow down and then I had to pull over and stop. Took to the mechanic and he explained there was metal shavings in engine. I needed to replace the whole engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662553May 22, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660800May 13, 2025
ENGINE
The engine died on me after having the car for less than 2 years. Driving on the highway car just stalled. Had car towed to the mechanic and they said the engine failed. There are plenty of consumer complaints about this model having engine failure while the vehicle is still new and properly maintained.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11658820May 4, 2025
ENGINE
My engine blow at 50,000 miles and now my VCR actuator has gone bad as well
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652643April 3, 2025
ENGINE
Engine lost power in normal course of driving. Loud engine noise. Burning oil smell. Mechanic assessed an internal engine component like a broken rod is the cause. Whole engine needs to br replaced at 103k miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646423March 5, 2025
ENGINE, POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11644494February 24, 2025
ENGINE
My Infiniti started making a slight ticking noise. The next day, the car abruptly stalled out while going down the highway causing the vehicle to loose speed and experience engine failure. Luckily, I was able to steer the vehicle to a more manageable location out of traffic. I had lost engine power and steering. After a certified mechanics diagnosis, the engine was declared blown. The bearings and rods have failed and the engine is no longer in repairable condition. The vehicle was serviced per manufacture regularly and there had been no signs of engine failure to that date.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643569February 18, 2025
ENGINE
Engine destroyed itself upon acceleration on highway. Variable Compression system malfunctioned, metal shavings found in oil, and engine no longer starts. Check engine light flashed after acceleration, and then engine lost all power. Car coasted to a stop as the engine couldn't make power.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11642329February 12, 2025
ENGINE
Bought the car from Infiniti and drove it a month,got my first oil change and that sam day my engine lock up first I heard the lifters and then the car shut down as I was trying to pull over ,I was 2,000 miles over my warranty
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633917January 3, 2025
ENGINE
On January 1, 2025 at about 10:30pm, while driving at about 40 miles per hour the engine made some knocking noises and then suddenly lost power, forcing the car to be pulled over to the side of a dangerous road. When I opened the hood of the car there was a small amount of smoke. There was no advanced warning that there was a problem with the engine, it just stopped running causing a dangerous situation. I had the car towed to Infiniti of Massapequa and was told the next day that the car needed a new engine. I was told by the dealer that there was metal in the oil and it appears the main bearing broke. The car is only about 6 years old with approximately 26,200 miles and has been extremely well maintained with the dealer, including scheduled oil changes with full synthetic oil. I am trying to get Infiniti to cover the full engine replacement cost since the warranty expired about two months ago. However, they still want to charge me $7,560 plus tax. The Infiniti service report is still pending the repair.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11629513December 8, 2024
SEATS
Driver’s seat will not move forward. Driver cannot reach the pedals. This has been an ongoing/intermitten problem. While the car was under warranty, Infiniti of Ft Myers, FL attempted to fix the problem and eventually replaced the components. The problem was fixed until last spring. When I reported the problem to Nissan last spring, they told me there was nothing they could do. I explained it was a safety issue. They didn’t care. The following day, the seat moved forward on its own so I didn’t pursue it. Yesterday, it happened again and today it did not reset itself. I cannot safely drive my car. In researching this issue, I’ve read that others have had the same issue and Nissan refuses to acknowledge or take responsibility for the problem. What if I were away from home and this happened? How would I safely drive my car? This happened a few years ago and I had to get to a cancer radiation appointment. I drove with a pillow and used cruise control as much as possible. It was a seriously dangerous driving experience, but I had no choice. I would appreciate any assistance your agency can provide.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628585December 3, 2024
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
Turbo, Rear-Coupler, Engine, Actuator Car was squealing and I was told that the serpentine belt needed to be replaced. Replaced this. Car still squealing and took it back. They replaced the belt, again.. Still squealing, now I am told its the tensioner that needs to be replaced but only Infiniti can do this (belt done at Firestone). At Infiniti - they look at the car and the tensioner is fine. But my turbo is blown. How? So, they replace the turbo and then say the rear coupler needs to be replaced. Repairs done and Infiniti said all fluids are good, everything is great. However, I might see slight smoke and a burning smell for 100-150 miles as theres a thin layer of oil on the turbo that will burn off. Oil change isnt due for 5k miles and I checked before my short road trip - all is good. Past the 100-150 miles and the car is SMOKING and SMELLS OF BURNING... Call infiniti, this is normal it will go away. Check fluids again, as no lights on the dashboard and oil is fine. Come back to get my car, check the ground as I always do and no oil/fluid and proceed home. 10 mins from my house the car WREAKS of burning smell, will not accelerate, no dashboard lights. So, I sit there and let it cool down - check again everything looks good. Try again, car will not go. Fluids look fine - oil, no spikes in temp, and no lights. Next day, no fluids under the car. Car accelerates but lunges me then stops going. Car smells bad, smoke.. go to check the fluids and NO OIL in the car out of no where. Infiniti tows it and it sounded like it was going to blow up. Also, a tink tink tink sound started out of no where. This is dangerous as the vehicle could had started on fire. I still dont know what is going on as Inf. has the car right now. This is a major safety hazard as I found a LOT of reports on this happening to others with this specific model and year. I had NO issues like this until Inf replaced the turbo.. NONE!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625841November 18, 2024
ENGINE
The engine stopped working. Allowing me to go no faster than 15 miles an hour. The safety issue is you can no longer drive at the speed that you need to drive. especially if you’re on the highway. The problem has been addressed by a dealer. I needed a whole new engine $13,000. The car at 97,000 miles on it. Was well taken care of. No warning signs prior also did not come up on my display Apparently, there are many other 2019 Infiniti QX 50’s that have this issue
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11601999July 14, 2024
ELECTRICAL SYSTEM
All vehicle doors and sometimes lift gate fail to open either by key fob or by indoor automatic door locks. Have to use Valet key to open driver door (alarm does not sound), then enter vehicle and manually unlock or lock desired door. Safety issue because kids can automatically exit or any individual can enter the vehicle unannounced while stopped. Neighbor has exact same vehicle year and model and is experiencing the same issues.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11586893May 3, 2024
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11579772March 27, 2024
ENGINE, 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to Infiniti QX50