Lexus RX IV (AL10) (2009 – 2015)

Reliability score : 9.2/10

The AL10 generation Lexus RX (officially the 3rd generation, although sometimes confused with the 4th depending on the market) is a premium SUV that consolidated Lexus's dominance in the luxury hybrid vehicle segment. Launched in 2009 and facelifted in 2012 (adopting the trapezoidal 'Spindle Grille'), it stands out for its exceptional ride comfort, top-tier soundproofing, and legendary mechanical reliability. Unlike its German competitors (X5, ML, Q7), the RX AL10 does not aim for sportiness but favors smooth operation, particularly in its hybrid version (RX 450h), which accounts for the overwhelming majority of sales in Europe. It is one of the most reliable used SUVs in the world. Expert note: Although the request mentions generation IV for the years 2009-2016, the AL10 chassis correspon

✅ Strengths

Exceptional mechanical and electronic reliability (often ranked 1st by J.D. Power and What Car?)
Suspension comfort and cabin soundproofing
Fuel consumption of the RX 450h version (around 8L/100km in real-world use)
Assembly quality and aging of interior materials
Mark Levinson audio system (if equipped) of excellent quality

⚠️ Weaknesses

Clumsy road handling, significant body roll
Infotainment system (Remote Touch) poorly ergonomic and dated
Slipping sensation ('coffee grinder' effect) of the e-CVT transmission under hard acceleration
Replacement cost of the hybrid battery or inverter in case of failure out of warranty
Average trunk volume for the size (due to the batteries on the 450h)

🎯 Verdict

The Lexus RX (AL10) is a true 'tank' when it comes to reliability. It is the quintessential used purchase for anyone looking for a premium SUV without the cold sweats of German brand maintenance bills. The RX 450h is the most relevant choice: it offers superior drivability in the city and controlled fuel consumption. The RX 350 is a fantastic alternative for those who do a lot of highway driving or fear the aging of hybrid batteries, although it is rare in Europe. The essential thing before buying is to check the maintenance history and, for the hybrid, to demand a recent HV battery health test.