Infiniti QX50 collision warning problems

Filed Dec 16, 2025 · Brakes, Electrical · 2,000 miles · NY

The contact owns a 2022 Infiniti QX50. The contact stated that while driving at unknown speeds, the Four-Wheel Drive (4WD) and Forward Collision Avoidance system engaged, and the vehicle automatically braked. The contact stated that the vehicle corrected itself after an extended period of time, and the instrument cluster froze. The vehicle was taken to the local dealer, who was unable to correct the failure. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 2,000.

Filed Aug 27, 2025 · Engine · 28,500 miles · CA

The contact owns a 2021 Infiniti QX50. The contact received notification of the federal safety agency Campaign Number: 25V437000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The vehicle was taken to the dealer, who referenced the Collision Avoidance System; however, did not diagnose the vehicle for any failure. The dealer confirmed that the recall repair was not yet available. The contact stated that while starting the vehicle, the check engine warning light illuminated. The vehicle was turned off and then restarted to deactivate the check engine warning light. The manufacturer was not made aware of the issue. The failure mileage was approximately 28,500.

Filed Aug 26, 2025 · Driver assistance, Electrical · MA

The system falsely beeps and displays collision alerts even when no vehicles or objects are present. The system has also initiated braking on the highway with no obstacle present, which is a major safety concern for me and for other drivers. Conversely, when an actual vehicle approached too closely, the system failed to alert or respond at all.

Filed Jul 14, 2024 · Acceleration, Driver assistance · CA

1. Collision warning sensor activated while driving in the #1 lane( closest to the cement highway dividers) and aggresively braked and slowed while diving at 77 MPH. Not safe!! 2. Even thou I purposely turn the radio "off" when exiting my car, upon entering my car after a short duration of time, the radio turns "on" without any assistance by me....very frustrating!! Vehicle has been inspected by the local infiniti dealership....they're clueless and of no assistance or help.

Filed Jan 25, 2024 · Driver assistance, Electrical · FL

I was driving down an empty road, no one in front of me, beside me, or behind me and the automatic braking system applied itself and slammed on brakes abruptly and beeped twice, without any prior warning or obstruction, causing the car to jolt into braking. I have contacted the dealership regarding this and they are looking at the precollision and emergency braking system next week. There were no prior warnings this braking was occurring. The car has had multiple issues since purchasing including headlight blinking and replacement within the first month of ownership, automatic sunroof needing a replacement because it was installed in the factory wrong, and the door lock actuator not locking/ or unlocking upon clicking lock/unlock. The car has been in and out of the Infiniti dealership in the 4 months since purchase. The car was purchased September 2023, and it is now January 25th, 2024.

Filed Nov 21, 2022 · Driver assistance · CA

On three separate occasions, the collision avoidance system activated without anything blocking it. One incident I was driving at least 35 mph thru and intersection and the car suddenly halted to a complete stop jerking myself and my 6 year old forward. The vehicle behind me had to swerve to avoid rear ending me.

Filed Jun 23, 2022 · Driver assistance · TX

Forward Collision Avoidance system automatically applies brakes during normal driving situtations. This will increase the safety risk for passangers including small children, animals, the driver and other drivers and their passangers. The warning lights came on the same time the FCA applied brakes. Numerious complaints already registered suggest approved recall and repairs are required. The QX50 is overloaded with Sensory Packages, advanced technology and is being serviced by undertrained technicians as stated in previous complaints of insufficiant maintenance repairs fixing the safety issue. If we had been in an airplane instead of a car we wouldn't be here to file this notice!

Filed Aug 12, 2021 · Brakes, Driver assistance · PA

Picked up the car on 5/25, on 6/4 sitting at a red light, forward collision warning and lane assist malfunctions showed up on dashboard. Called Faulkner willow grove where my company leased the car, the set up an appt on 6/17. the next day, 6/18 both malfunctions came back, I called and said I don't have time out of my day to drive back and forth for you to not fix my car, he told me to go somewhere else and found Holman Infiniti, they scheduled me on 6/25, they found I needed a new camera but the part was on a national backorder no eta. on 7/6 my car auto breaked with nothing in the way on a clear sunny day, called Holman they told me this happens all the time just accelerate, the engineers know its a problem, there's not current fix and you can't turn it off and he told me to call customer assurance to open a claim which I did, on 7/7 customer assurance called me back assigned me a case manager, on 7/8 Holman told me my camera part was in stock, scheduled an appt on 7/15, on 7/18 the forward collision sensor blinked the entire drive home.

Filed Apr 21, 2021 · Brakes, Electrical · MN

On may 4, 2019, I tool delivery of a new infinity, qx50 and after 2.5 months of ownership (july 26, 2019 to present), I'm having ongoing / unresolved problems / failures with; audio, lane departure, collision warning w/ sudden stopping, heated / cool seats, infotainment, audio, tailgate, remote door locks, both screens going blank, phone / bluetooth connection, awd, automatic shifting problems and extremely soft brakes that put me thru 2 controlled intersections. The dcu has been replaced 4 times and I still have the same ongoing / unresolved problems. I told the service manager (rudy), to start replacing all the sensors, cms and camera and he refused to do that. My qx50 has been in for service five times (including today, 04-21-2021), for a total of 6+ weeks. The mechanic at infinity, can't replicate any of my ongoing problems / unresolved problems and I have 25 videos, showing what the qx50 is dong and infinity can't fix it. I pay a lot of money for the qx50 and for all the driver safety features, other amenities and it still continues to fail miserably and does not perform as intended. Because of these unresolved problems and ongoing issues, my wife refuses to drive in the qx50 with me. I have asked infinity to buy back the qx50 and they flat out refused. I had to obtain a lawyer.

Filed Jun 22, 2020 · 25,000 miles · SC

Two separate incidents of vehicle performing preemptive braking with no other vehicles or objects present while the vehicle was in motion. The first incident occurred while traveling at speeds approximately between 45-50 MPH through a four-way intersection; no vehicles were present. The second incident occurred while driving at a speed that was approximately between 30-45 MPH approaching an intersection. Probable cause: front crash prevention, forward emergency braking with pedestrian detection, predictive forward collision warning. The vehicle was checked in for service and after a seven day period, no faults were found. The dealership could not replicate the condition stated above.