2015 Infiniti QX60

When driving my car when I am at a certain speed whether 60 or above on the highway, when I start to decelerate the car starts to shake. It is often as I drive daily. The FCW is constantly coming on saying manufacturer failure check manual. Also since I cannot update my maps as the disc is no longer made I use a car play. The music always cuts out

I took my car in for oil change to Infiniti dealer (Infiniti of Nashua) on 4/29/26 and was told by dealer that the rear subframe is rusted and my car is not safe to drive, with a repair estimate of $13,184 to replace rear subframe with all hardware. Actually, I had oil change and 4 wheel alignment done at the same Infiniti dealer less than a year back on 6/25/25. At that visit, the only recommended work was to replace oil pan (beginning to rust), battery service, and wiper replacement. There was no mention of a rusting rear subframe. My car is available for inspection, and i am afraid to drive this car. my car is up todate on inspection, registration etc. there were no warning signs prior to this that I noticed

Shortly after purchasing this used vehicle from CarMax, the vehicle began experiencing serious mechanical failures involving the engine/emissions system, braking system, and suspension. The vehicle displayed a check engine warning light, and the selling dealer, CarMax Schaumburg, confirmed issues requiring repair, including a faulty oxygen sensor, brake-related repairs, and a suspension link. The vehicle was taken in for service, parts were ordered, and repairs were performed. Despite these repairs, the same issues reoccurred, requiring the vehicle to be returned for additional repair attempts. The problems were therefore reproduced after the initial repair, confirming the existence of unresolved defects. The vehicle was not reliably safe during this period. These failures posed safety risks due to reduced braking reliability, compromised vehicle stability, and engine performance concerns, which could affect drivability and safe operation under normal conditions. The defects were confirmed and serviced by the dealer, as documented through service communications and voicemail messages from CarMax. Warning indicators, including the check engine light, were present prior to repair and prompted service visits. Exact mileage at the time of the incidents is UNKNOWN, as it was not clearly disclosed at purchase. Before the issues were fully and permanently resolved, the vehicle was repossessed, resulting in the loss of the vehicle while unresolved safety and mechanical defects existed. The repossession prevented further inspection or repair by the consumer. The repaired components and service records should be available for inspection through the dealer. No police or insurance inspection occurred in connection with a collision, as the issue involved mechanical and safety defects rather than an accident.

Odometer Fraud. The contact purchased a 2015 Infinity QX60. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 99,500. It was later discovered that the mileage on the title was 165,000. The vehicle was taken to the dealer for an oil change, and the contact was informed about the mileage discrepancy.

Because I bought the car used in June of this year, around July, the driver's and passenger's side airbag warning lights on the display panel started flashing, then disappeared after a few days. After August, they kept flashing and then stopped altogether. I took it to an Infiniti dealership for inspection, and the mechanic reported that the airbag sensors were malfunctioning and there was no connection between the airbags and the computer system platform, and that other problems might even be discovered during the repair process. This result seriously affects my driving safety, and I believe it's a quality issue with the car's performance, not a problem caused by driving a used car.

As The vehicles drive it will intermittently lose power. This is continuous problem ever since 2 weeks after I purchased the vehicle. The power loss can last for 1 sec or most recently up to about 3 to 4 secs. The other day I had to pull over after the vehicle lost power and wait two minutes before starting back on the drive. When it loses power, the power steering goes out and if approaching a turn and/or a decent curve in the road, that can be very hazardous. I Believe this is a huge safety concern and many people have experienced the same malfunctions.