NHTSA lists 3 safety recalls and 7 owner complaints for the 2021 Infiniti Q50. Most complaints involve engine (2) and forward collision avoidance (2). The EPA rates it 22–23 mpg combined.
Nissan North America, Inc. (Nissan) is recalling certain 2021 Infinity Q50, Q60, and QX80 vehicles. A software error may deactivate the audio/video control unit screen, preventing the rear-view image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Nissan North America, Inc. (Nissan) is recalling certain 2020 Nissan Murano, INFINITI QX60, 2021 Nissan GT-R, INFINITI QX50, and Q50 vehicles. The front steering knuckle or rear axle housing may have insufficient strength due to improper heat-treatment.
Nissan North America, Inc. (INFINITI) is recalling certain 2021 INFINITI Q50 and Q60 vehicles. After detecting rapid acceleration, the Engine Control Module (ECM) may incorrectly reduce engine power and reduce fuel supply to the engine.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“While driving a year ago, car automatically stopped short, no reason for it. About 15-20 minutes later strong gas smell entered the cabin, stopped twice to get out of the car, as the gas smell was extremely overwhelming then my next stop called for a tow. I had another 20 minutes to reach my home, but smell was so strong I couldn't do it. Service department found no problem and I took it home. No other episode for a year. About a year later, this week 11/5/26 and 11/6 that episode happened twice this week and car is being checked and, again, service can't find a problem with out extensive testing at my expense ($600.+) and no guarantee of solution.”
“I purchased a new 2021 Infiniti Q50 from Infiniti of Cool Springs on September 28, 2020. There was an incident on January 13, 2022 due to a manufacturer defect that caused my car to accelerate on it’s own. I was parked at a car wash to vacuum my vehicle. I had my foot on the brake to move the gear shift into park when my car rapidly accelerated which caused me to crash through a metal fence that separated the car wash from the adjacent property. I have an added safety feature on my vehicle to prevent a forward collision with emergency breaking that also didn’t implement. There wasn’t any warnings, indications or symptoms beforehand. I had my Infiniti for 16 months with only 20,766 miles on it at the time of the incident. This malfunction could present a serious public safety issue. I or someone else could have been seriously injured in a different scenario. It was fortunate that I was stopped and no one was in front of the car. Nissan issued a recall on April 3, 2021 for the problem of rapid acceleration. The dealership without my knowledge completed the recall on my vehicle on April 1, 2021 which evidently didn’t fix the problem. Nissan and the dealership have…”
“In August 2026, while driving, the vehicle suddenly lost acceleration and engine power and would only travel at a very slow speed. The check engine light came on. The driver had to safely stop, turn the engine off, and restart it. After restarting, the vehicle temporarily regained acceleration and normal speed. This problem has occurred more than once and creates a serious safety risk in traffic, especially when merging or crossing intersections. An INFINITI dealer inspected the vehicle and advised that the problem may involve the turbocharger system, with repairs estimated at approximately 4,000. INFINITI Consumer Affairs was contacted about the loss of acceleration but declined financial assistance because of the vehicle's mileage/warranty status. The vehicle was previously an Enterprise rental vehicle and had prior INFINITI service history. The vehicle is available for inspection. I am requesting investigation of this sudden loss-of-power condition.I am aware that NHTSA Recall 21V-234 / INFINITI Campaign R20C5 involved certain 2021 Q50 vehicles and an ECM software condition associated with a warning light, reduced power, and possible engine stall while…”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Q50 Auto (S7), 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive | 20 | 29 | 23 | $3,250 | 388 |
| Q50 AWD Auto (S7), 6 cyl, 3.0 L, Turbo · All-Wheel Drive | 19 | 27 | 22 | $3,400 | 403 |
| Q50 Red Sport Auto (S7), 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive | 20 | 26 | 22 | $3,400 | 403 |
| Q50 Red Sport AWD Auto (S7), 6 cyl, 3.0 L, Turbo · All-Wheel Drive | 19 | 26 | 22 | $3,400 | 411 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
3 safety recalls as of Nov 12, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 7 complaints with NHTSA. The most-cited components are engine (2), forward collision avoidance (2), vehicle speed control (2). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2021 Infiniti Q50 at 22–23 mpg combined, depending on engine and drivetrain (4 versions rated).