2020 Infiniti QX50: sudden loss of power

Filed Sep 2, 2026 · Engine · GA

Engine lost all power and car seemed to be locked in low gear while attempting to drive down the road. Took the car to Infiniti dealership which said there was a recall and they inspected the vehicle. Mechanic inspected the vehicle and said it fit all requirements to be replaced by engine recall. Infiniti is refusing to replace engine stating it does not meet recall requirements.

Filed Feb 19, 2026 · Engine, Transmission · NY

I am a [XXX] woman who purchased my first vehicle on December 6, 2024, with 43,000 miles. I have driven fewer than 20,000 miles since purchase, and the vehicle currently has approximately 62,000 miles. Until January 19, 2026, I experienced no issues. I have properly maintained the vehicle and followed all recommended service guidelines. I completed three oil changes during my ownership, averaging approximately every 8,500 miles. Two oil changes were performed by a licensed mechanic, and the most recent oil change and inspection were completed on November 29, 2025 at Legend Infiniti. I have receipts for all services. On January 19, 2026, while driving approximately 65 mph on a four-lane highway in Long Island, the vehicle suddenly went into limp mode and dropped to about 10 mph without warning. This created an extremely dangerous situation with a serious risk of collision. I first brought the vehicle to my mechanic, who advised me to take it to an authorized Infiniti dealership due to an engine bearing recall associated with my VIN. I brought it to the same Infiniti dealership that had serviced it two months earlier. After diagnosis, the dealership stated there was engine sludge and that I needed a new engine. They denied any connection to the recall and attributed the issue to poor maintenance. However, two months prior they completed an oil change and inspection with no documentation of sludge, engine concerns, or maintenance deficiencies. I was not informed of any recall at that time. My warranty claim was denied on the basis that sludge is not covered and that maintenance performed outside Infiniti could not be validated, despite providing receipts from licensed facilities. I am also being told there are record-access issues because the vehicle was originally sold in Canada. Given the sudden loss of power at highway speed and the known recall related to engine components, I believe this presents a significant safety concern and warrants investigation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFO

Filed Sep 12, 2025 · Engine · GA

I experienced loss of power while on the interstate and at that time I was unaware of what the issue was until I received a Recall regarding the engine. I often have my grandson [XXX]) who sits in the back seat of my 2020 QX/50. I went into the Infiniti of South of Atlanta, Union City, Georgia 30291 and I was informed by my Service Representative (Mrs. Dyamond Cobb) on September 12, 2025 @ 11:00 a.m. that this Recall has been suspended. I was given info to reach out to Infiniti Consumer Affairs Department and also to submit through on line a complaint to and I am submitting this info on line as a means to document that I am having serious concerns. I am making payments on a vehicle that could cost me and my family our life! In addition, the dealership is definitely NOT ACTING ON BEHALF OF THE CUSTOMER WHATSOEVER! I will SUE should this vehicle loose power in the stream of ongoing traffic or on the interstate, this is my only vehicle and no one is willing to assist with repairs KNOWING THERE IS AN ENGINE ISSUE and a bearing failure may cause a break in the engine block allowing hot oil to be discharged increasing the risk of an ENGINE FIRE! This is a SERIOUS SITUATION and I SHOULD NOT BE FORCED TO DRIVE AN UNSAFE VEHICLE THAT I CURRENTLY MAKE PAYMENTS ON!!!! LAW SUIT INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 4, 2025 · Engine · AL

Pulled out into an intersection with limited visibility. Once I got into my lane I observed a car behind me that I had not seen. I tried to accelerate to avoid being hit. My car began making a knocking sound with loss of power. The other car went around me on the shoulder to avoid a collision. Infiniti of Birmingham (Alabama) says that one of the bearings in the engine spun and there is metal shavings in the oil pan. They say I need a new engine with only 68,000 miles. They are “unsure” if Infiniti will warranty the cost of repairs. Absolutely ridiculous! Please help!

Filed Dec 21, 2021 · Transmission · OR

Day 1 noted car was having issues with irregular RPM's while cruising, and spiking of rpm's during acceleration. while on hwy w/ cruise control activated, "malfunction" warning lit on screen and forward propulsion ceased. had to move car to roadside, turn off engine and turn back on. took to dealership. they inspected vehicle and indicated there were no codes in system and with checks nothing to indicate any issues. they reset computer systems. drove home noting that the issue did not seem to be resolved. Day 2 same issues. Issues with reverse (seemed car strained to reverse). Wife noted that vehicle seemed to lose power on hill and struggled to get over 25 mph even with pedal to floor. Later in day car continued to have similar issues with strange fluctuation of rpm's even while idling, high revving of engine during acceleration that caused jerkiness, and when changed to manual transmission mode, high revving in 2nd gear with no accompanying acceleration. Day 3 similar issues. Arranged to take car to shop. Day 4 on way to shop, same issues. On a moderate hill, car appeared to go into limp-home mode. After stopping and restarting car, CVT Malfunction warning light came on. Note I've had this car 8 months and it has only 16,000 (about 10k since purchase).