In a world where cars are becoming increasingly complex and electronics more temperamental, reliability has become the ultimate currency. Lexus, Toyota's luxury brand, has long earned a reputation for building vehicles that can run for years without major mechanical issues. But which models deserve the title of the most reliable in 2026? Let's take a closer look.
Research firm J.D. Power conducted a large-scale reliability study of the brand, surveying more than 33,000 owners after three years of vehicle ownership. The results were mixed: the average number of problems per 100 vehicles rose to 204, the highest figure recorded since 2022. The biggest source of frustration for owners remains infotainment systems and advanced "smart" features, which frequently experience glitches and software issues. Today, we take a closer look at the five Lexus models that have earned the trust of millions of drivers worldwide.
Lexus IS: The Benchmark for Reliable Sedans
The undisputed leader of the ranking is the 2026 Lexus IS sedan. It received an outstanding reliability score of 91 out of 100, making it the highest-rated model among all 184 vehicles tested. The secret behind its success lies in Lexus' conservative engineering philosophy: instead of chasing every new technology trend, the company continues to rely on proven, time-tested solutions.
At a time when nearly half of all problems in new vehicles are linked to unreliable infotainment systems and software bugs, Lexus' approach has proven remarkably forward-thinking. The IS offers exactly the right amount of technology for comfort without unnecessary complexity that often becomes a headache for owners. Average annual maintenance costs are only around €540, an excellent figure for a premium sedan. Lexus as a brand also performed exceptionally well overall, recording just 151 problems per 100 vehicles—far better than the industry average and especially impressive within the premium segment.
Lexus ES: Comfort Meets Simplicity
Second place goes to the 2025 Lexus ES, which earned an impressive reliability score of 89 out of 100. This eighth-generation sedan perfectly embodies Lexus' philosophy of premium comfort, refinement and long-term dependability. Engineers deliberately prioritised smooth driving and durability over outright sportiness—a decision that has clearly paid off.
The ES is sometimes criticised for lacking sporting character, but that is precisely one of its greatest strengths. Its proven platform and straightforward engineering make it a vehicle that delivers years of trouble-free ownership. Average annual maintenance costs are just €468, making it one of the most affordable premium sedans to maintain. It also boasts excellent resale value, retaining around 60% of its original price after three years. Many owners particularly praise the ES 300h hybrid, which combines outstanding fuel efficiency with even lower running costs.
Lexus NX: A Compact SUV with a Big Heart
Third place goes to the 2026 Lexus NX, which achieved a strong reliability score of 85 out of 100. It is one of the brand's best-selling vehicles for good reason, combining bold styling, modern technology and a wide choice of powertrains, including petrol and hybrid options.
According to J.D. Power, the NX received top marks in both the "Quality & Reliability" (85/100) and "Dealer Experience" (85/100) categories. The NX 350h hybrid is regarded as the most dependable version thanks to its proven 2.5-litre engine and carefully engineered drivetrain. Owners spend an average of around €690 per year on maintenance, an excellent result for a premium compact SUV. The NX's outstanding reputation for reliability has become one of the key reasons behind its commercial success.
Lexus RX: The Flagship SUV with an Outstanding Reputation
Fourth place belongs to the larger and more luxurious Lexus RX (2026 model year), which earned a reliability score of 82 out of 100. For decades, the RX has remained one of the most respected luxury SUVs on the market. While its exterior has become more dynamic and aggressive over the years, it continues to offer the same comfort and refinement that have defined the model since its launch.
Experts estimate average annual maintenance costs at around €550. Over ten years of ownership, repair and maintenance expenses are approximately €4,611 lower than the average for luxury SUVs. This impressive figure is the result of Lexus' proven engineering and durable components. The RX 500h hybrid stands out in particular, with estimates suggesting it can remain reliable for well over 15 years and exceed 176,000 miles. The probability of an RX 500h reaching 200,000 miles is estimated at 35.6%—an exceptional achievement for a premium vehicle.
Lexus TX: A Family SUV Built to Last
Completing the list is the full-size, three-row Lexus TX. Although it is one of the newest additions to the Lexus lineup, it has already established itself as a dependable family SUV. J.D. Power awarded it a reliability score of 80 out of 100. Buyers can choose between a conventional petrol engine and a hybrid powertrain, allowing them to select the configuration that best suits their needs. The TX's greatest strengths are its spacious interior and comfortable seating for up to seven passengers, all while maintaining the durability and build quality for which Lexus is renowned.
Why Does Lexus Continue to Dominate Reliability Rankings?
Lexus' continued success in reliability studies is no coincidence. The brand follows a conservative approach to technology, favouring proven engineering over innovation for its own sake. While many competitors rush to introduce increasingly complex infotainment systems and software that often become sources of frustration, Lexus focuses on long-term durability and dependable performance.
In addition, the company's engineers carefully refine every mechanical component to maximise longevity. This is why the Lexus IS became the only model to receive the highest overall score in the latest J.D. Power study, while Lexus itself has remained the leading premium brand for reliability for the fourth consecutive year.
Choosing a Lexus is an investment in peace of mind. Behind the wheel of any of these models, owners can expect dependable performance year after year, backed not only by industry research but also by the real-world experience of millions of drivers across the globe.
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