Lexus RX L 450h reliability & safety

It's relatively new, but the Lexus RX L 450h is likely to provide a trouble-free and safe ownership experience

Euro NCAP rating Adult protection rating Child protection rating Safety assist
5 stars 91% 82% 77%

Life with a RX L 450h should be free of problems, with Lexus scoring well in reliability and dependability surveys. Meanwhile, the SUV is packed with standard safety features, but you’ll need to splash out on the top trim to get the best package.

Lexus RX L 450h reliability & problems

Lexus always performs incredibly well in our Driver Power customer satisfaction survey, and 2018 was no exception. The previous-generation Lexus RX finished second in the top 10 most reliable used SUVs and 4x4s with a score of 93.57%, which is encouraging for the current model.

Indeed, the new model finished 18th overall on the list of the most reliable new cars with a score of 93.98%, while the Lexus NX finished first with 96.25% and the Lexus CT finished joint ninth with 94.55%. Although there’s no guarantee that a car will be reliable, the RX L 450h stands a good chance of being trouble-free.

It’ll come as no surprise, then, to discover that Lexus finished top of the list of best car manufacturers, scoring well for comfort, quality and safety. Lexus also took the class win for reliability. If you’re after assurances about the hybrid system, Lexus finished second in the engine and gearbox category.

Finally, Lexus finished first in the best car dealers category, not ranking lower than fourth place in any individual category. Dealers were praised for their courteous staff, excellent communication, quality of work and customer service.


The RX L 450h hasn’t been crash-tested by Euro NCAP, but the five-seat RX 450h was awarded a maximum five-star safety rating in 2015. The scores were impressive across the board: 91% and 82% for adult and child occupant protection respectively, 79% for pedestrian safety, and 77% for passive and active safety technologies.

Regardless of the trim level, the RX L 450h offers a host of standard safety equipment, including 10 airbags and the Lexus Safety System, featuring adaptive cruise control, lane-departure warning, lane-keeping assistance, traffic-sign recognition, automatic high beams and sway warning alert.

Upgrading to the top-spec Premier edition adds blind-spot monitoring with rear cross-traffic alert and a panoramic view monitor. This is a boon when manoeuvering into a parking space, as the RX L 450h is a long car and it’s very difficult to see out of the back. The bird’s-eye view makes reversing into a space easy.

It is, perhaps, one reason to upgrade to the Premier, as the blind-spot monitor and panoramic view monitor are not available as options on the SE and Luxury.