Infiniti Q50 owners have reported 80 power train related problems since 1996. Table 1 shows the 4 most common power train problems. The number one most common problem is related to the vehicle's power train (70 problems). The second most common problem is related to the vehicle's automatic transmission control module (7 problems). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Power Train problems | |
| Automatic Transmission Control Module problems | |
| Automatic Transmission problems | |
| Transmission Not Go Into Gear problems |
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. Read details...
While operating the vehicle, the transmission suffered an abrupt failure resulting in diagnostic trouble code (dtc) p0720 (output speed sensor circuit). Further diagnostic inspection revealed a complete internal failure of the integrated valve body assembly, which houses the transmission control Read details...
The contact owns a 2015 Infiniti Q50. While driving at various speeds, the transmission was slow to shift. The vehicle failed to properly accelerate while depressing the accelerator pedal, and the check engine warning light remained illuminated. Read details...
While accelerating, the driver switched the vehicle from manual shift mode to automatic. The driver noted a significant increase in measured rpm via the tachometer as if the vehicle "jumped into a lower gear or failed to find a gear. Read details...