Infiniti
QX55
Lexus
NX
Infiniti QX55 vs Lexus NX: 2021 Comparison
The short answer
Based on available data, the Lexus NX comes out ahead of the Infiniti QX55 on power. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
QX55
Overall
Mixed to negative sentiment overall. The vehicle is acknowledged for its attractive, sporty coupe-SUV styling, which several owners find to be a standout feature. It is also noted for being comfortable for shorter drivers, offering good seat adjustment and a wide view.
Best version to buy
Insufficient owner data available. One owner mentions having an "Essential" trim with ProPilot upgrades and appreciating features like a head-up display, while a loaner "Sensory" trim was noted to have fewer toys.
Known issues
- ⚠VC-Turbo engine failure risk: Major recall for manufacturing defects in engine bearings (main, A-, C-, L-link) leading to engine damage, catastrophic failure, loss of motive power, and potential engine fire.
- ⚠CVT transmission reliability and performance: Transmission described as "notoriously disliked," with a high likelihood of failure around 50,000-100,000 miles, cited as a ~$6,000 USD repair.
- ⚠Dated and problematic infotainment/technology: Interior tech described as "extremely dated," "from 2008," and "woefully behind." Specific glitches reported include: entertainment system reboots, Bluetooth turning off by itself, and a slow,…
NX
Overall
Mixed to positive sentiment, heavily dependent on model year and powertrain. The vehicle is widely praised for its exceptional long-term reliability, with the 2015-2021 generation specifically highlighted as "bulletproof." Owners of the post-2022 redesign appreciate the updated technology, smoother ride quality, quieter cabin, and refined interior. However, significant criticism is directed at specific, recurring issues: a very frequent and severe 12V battery drain problem in NX 350h hybrid models, leading to repeated dead batteries; various electrical gremlins and rattles in multiple generations; and a powertrain in earlier turbo models (200t/300) described as underwhelming, with sluggish acceleration and a requirement for premium fuel.
Best version to buy
Insufficient owner data available to declare a single "best" trim or version. Feedback is split by powertrain: the hybrid (350h) is favored for its fuel efficiency and smoothness, but is plagued by battery issues.
Known issues
- ⚠12V Battery Drain (Hybrid Models): Chronic and severe issue causing dead batteries, requiring frequent jumps or trickle chargers, occurs even with regular driving. Owners report multiple roadside assistance calls. Frequency: very frequent.
- ⚠Various Electrical Gremlins: Includes malfunctioning power liftgate (faulty pinch sensors), non-working window switches, delayed key fob response, hands-free microphone failure, "reduced engine power" warnings with no drivability loss, and…
- ⚠Interior Rattles and Build Quality: Rattles from dashboard, center console, infotainment screen, seatbelt area, overhead light, and doors. Loose trim pieces and poorly finished components (e.g., paddle shifter edges).
The verdict
The Lexus NX is the better choice for most buyers.
It has more power on its best-equipped version than the Infiniti QX55, based on the data above. If efficiency matters more to you than outright power, the Infiniti QX55 is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Infiniti QX55 or the Lexus NX?
Owner reports show similar reliability sentiment for the Infiniti QX55 and the Lexus NX. Check the known issues listed above for specific differences between the two.
Which is better for families, the Infiniti QX55 or the Lexus NX?
Data on family-specific factors like cargo space is limited for one or both models, but based on available reports, both are positioned as practical daily drivers. Check the specs table above for seating and body type.
Which has better fuel economy, the Infiniti QX55 or the Lexus NX?
Fuel consumption data is limited for one or both models. Check the specs table above for the figures available on each catalogued version.
Which is cheaper to maintain, the Infiniti QX55 or the Lexus NX?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Lexus NX than the Infiniti QX55. See the known issues comparison above.