What breaks most · 2014 to 2025 model years
Infiniti QX50 problems by year
Owners have filed 272 safety complaints with NHTSA about the Infiniti QX50 across model years 2014 to 2025. One year stands out: 2019 for engine complaints. The quietest years are 2014, 2015 and 2023.
- Years to check closely: 2019
- Fewest complaints: 2014, 2015, 2023
- Complaints on file
- 2722014 to 2025, all trims
- Worst year
- 2019138 complaints
- Crashes reported
- 116 fires · 14 injuries · 0 deaths
- Typical failure mileage
- 46kMedian where owners gave mileage
- Recall campaigns
- 11Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 2 | 1 | 0 | Electrical system (1) | |
| 3 | 0 | 0 | Powertrain and transmission (1) | |
| 19 | 3 | 0 | Unknown or other (6) | |
| 13 | 1 | 0 | Air bags (3) | |
| 138 | 3 | 3 | Engine (52) | |
| 32 | 0 | 2 | Engine (17) | |
| 40 | 2 | 2 | Engine (18) | |
| 16 | 1 | 2 | Electrical system (5) | |
| 4 | 0 | 1 | Powertrain and transmission (2) | |
| 4 | 0 | 1 | Forward collision system (2) | |
| 1 | 0 | 0 | Engine (1) |
What fails on the 2019 Infiniti QX50
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| EngineEngine gaskets and seals | 38% |
52 | 1 | Shop engine parts for the 2019 Infiniti QX50 |
| Engine and coolingRadiators, thermostats and cooling | 22% |
31 | 0 | Shop engine and cooling parts for the 2019 Infiniti QX50 |
| Unknown or other | 14% |
19 | 2 | — |
| Electrical systemAlternators, starters and ignition | 12% |
17 | 0 | Shop all electrical system parts, not filtered to this vehicle |
| Forward collision systemRadar and camera sensors | 12% |
17 | 0 | Shop forward collision system parts for the 2019 Infiniti QX50 |
| Powertrain and transmissionTransmission parts | 9% |
13 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| BrakesBrake pads, rotors and calipers | 8% |
11 | 2 | Shop brakes parts for the 2019 Infiniti QX50 |
| Speed control and throttleThrottle and pedal sensors | 5% |
7 | 1 | Shop speed control and throttle parts for the 2019 Infiniti QX50 |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
-
The car had a power failure so I took it to the dealer to have it checked since it had an open recall, according to what the mechanic tells me is that the fault comes from the mild tree, but he does not tell me what causes that failure and he has not given me the results of the recall either
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 6, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Infiniti QX50 years have the most problems?
By NHTSA complaint volume, 2019 carries the most filings on the Infiniti QX50. The 2019 alone has 138 complaints, led by engine.
What is the most common Infiniti QX50 problem?
On the 2019 model year, the most-reported component is engine with 52 complaints. The table above lists the top components for every year.
At what mileage do Infiniti QX50 problems start?
The median mileage at failure across all Infiniti QX50 complaints that include mileage is about 46,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.