This page covers 3 recalls, 21 owner complaints and EPA fuel economy for the 2018 Infiniti Qx30.
25–27 mpg combined
8.7–9.4 L/100km
Compact Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 2 tested variants for this model year.
The 2018 QX30 complaint set is relatively small, and the issues reported are spread across several systems rather than concentrated in one area. Engine complaints include a crankcase ventilation valve failure that triggered a check engine light. Airbag-related reports describe warning lights coming on alongside a failed clockspring, the component behind the steering wheel that maintains electrical connections through the wheel's rotation, with at least one report also mentioning a steering angle sensor fault. The electrical system complaints track similarly, with various warning lights illuminating unexpectedly. Outside the top-volume categories, individual owners report a rear subframe structural failure confirmed by a dealer around 39,000 miles, and a sagging headliner obstructing rear window visibility.
21
Total Complaints
By System
The 2018 Infiniti QX30 has 3 recalls, the most serious being a driver's airbag that can deploy without warning, raising the risk of injury and loss of vehicle control.
The front passenger seatbelt also has a concern: the lower anchorage bolt on the right-hand side may have been incorrectly installed, and in a crash the anchorage can pull free, leaving the belt unable to restrain the occupant. There is also a backup camera recall where the rearview image can fail to appear when reversing, reducing visibility of what is behind the vehicle.
At a glance
What can fail
The backup camera display settings can be changed so the rear view image disappears. The system saves this setting, so the rear view remains hidden when you shift into reverse.
What the fix does
Dealers will update the backup camera software settings at no cost to restore proper rear visibility functionality.
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Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The bolt holding the right-side lower seat belt anchor may have been installed incorrectly at the factory, causing the anchor to detach during a crash.
What the fix does
Dealers will install a new retaining plate and secure the seat belt anchor with a new bolt at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The driver's air bag may deploy without warning if the air bag clockspring breaks and the steering components lack proper electrical grounding, allowing electrostatic discharge to trigger deployment.
What the fix does
Dealers will add proper electrical grounding to the steering components at no cost to owners.
Summarized — see the official notice for exact wording, dates, and contacts.
