Summary
The fourth-generation Lexus RX was a large premium SUV, available in regular five-seat and seven-seat (RX L) formats. The RX range launched in the UK in 2015, and was bolstered by the longer RX L two years later. This fourth-generation line-up was removed from sale in 2022, making way for the new fifth-generation range.
Like most Lexus models, the RX and RX L were only available in the UK with a petrol-electric hybrid drivetrain towards the end of their time on sale. No conventional petrol or diesel models were offered.
The Lexus RX and RX L received generally good reviews from UK media sources. They have been rated highly for for their build quality, comfort and refinement, although have been criticised for their driving dynamics. The third-row seats in the RX L were also quite small compared to other seven-seat SUV rivals.
The Lexus RX was unlikely to let you down mechanically. It was ranked the most reliable car in the UK in a 2020 What Car? survey of cars up to eight years old (a title shared jointly with the 2008-15 Honda Jazz and 2013-19 Toyota RAV4).
As of May 2024, the fourth-generation Lexus RX holds a Used Car Expert Rating of D, with a score of 59%. It gets good grades for reliability, but its CO2 emissions and safety rating (now expired) are only average, and its running costs are high.
Key specifications
Body style: Large SUV
Engines: petrol-electric hybrid
Price when new: From £50,905 on-road
Launched: Winter 2015/16
Last updated: Winter 2019/20
Replaced: Winter 2022/23
Image gallery
Media reviews
Reviews, road tests and comparisons from across the UK automotive media. Click any of the boxes to view.
The Car Expert
Model reviewed: RX L range
“If you’re after an imposing hybrid SUV and your focus is on comfort, the RX L will serve you pretty well.”
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Model reviewed: RX 450h
Score: 8.2 / 10
“The Lexus RX 450h is a quality premium SUV with the very worthwhile extra element of the economy and efficiency of its hybrid drivetrain.”
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Auto Express
Model reviewed: Range overview
Score: 7.6 / 10
“The latest Lexus RX is another big leap forward for the Japanese carmaker. The wealth of technology on board is thoroughly impressive, the build quality is phenomenal and there’s finally a plug-in hybrid version.”
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Model reviewed: RX 450h F Sport
Score: 7 / 10
“Updating a car like the Lexus RX is a tricky task; how do you build on a model that was, from the off, so thoroughly well-engineered? Lexus’s answer is a subtle one – by fine-tuning the car’s looks, tweaking its suspension, and adding a new infotainment system, the RX 450h has been incrementally improved all-round.”
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Model reviewed: RX 450h L Premier
Score: 6 / 10
“You won’t find another SUV that’s quite as comfortable or as easy to live with as a Lexus RX L. But unfortunately, if you want a seven-seat SUV, you can do an awful lot better.”
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Model reviewed: RX L range
Score: 7 / 10
“The Lexus RX L fills a niche within a niche, so if you’re after a hybrid seven-seater but don’t have access to a plug socket, it’s worth considering. It’s comfortable and refined, but most of its rivals are more involving to drive. The biggest problem for many could be that despite the extra row of seats, the RX L is far from the last word in practicality.”
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Autocar
Model reviewed: RX range
Score: 7 / 10
“The Lexus RX is classy and luxurious, but that might not be enough for keener drivers.”
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Model reviewed: RX 450h L
Score: 7 / 10
“Supersize version of Lexus’s hybrid-only SUV is a quiet and pleasant but at times curious car to drive”
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Model reviewed: RX 450h F Sport
Score: 7 / 10
“It’s distinctive, likeable, comfortable, refined when you’re not clogging it and loaded with standard kit.”
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Car
Model reviewed: RX 450h L
Score: 8 / 10
“You’ll make your own mind up about the Japanese styling inside and out, but – outdated infotainment aside – there’s little to stop us recommending the Lexus RX L as a rational, sensible seven-seat SUV option.”
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Carbuyer
Model reviewed: Range overview
Score: 7.4 / 10
“The Lexus RX is comfortable, refined and luxurious, but like many Lexus cars, isn’t as much fun to drive as its rivals.”
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Carwow
Model reviewed: RX L
Score: 7 / 10
“The luxurious Lexus RX L is an RX with a longer body and two extra seats. It’s relaxing to drive and is relatively cheap to run, but you’ll find alternatives are more spacious.”
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Model reviewed: RX 450h
Score: 7 / 10
“The Lexus RX is a well-built, luxurious SUV that’s only available as a hybrid. It’s very comfortable for four people, but let down by a fiddly infotainment system and the lack of a diesel engine.”
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Score: 7 / 10
“The Lexus RX is a well-built SUV that swaps sporty styling and driving aspirations in favour of being well built and extremely comfortable.”
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Company Car Today
Model reviewed: RX 450h F Sport
“Lexus RX scores well for emissions, BiK and luxury, but the driving experience isn’t as good as those offered by rivals.”
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Model reviewed: RX 450h L Luxury
“Lexus has always been a brand to make more sense on paper rather than in the driving experience, and the RX L very much conforms to that. Excellent emissions, operating costs and low-speed running compensate for a forgettable driving experience and poor infotainment control system.”
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Daily Mail
Model reviewed: RX 450h F Sport
“This well-padded SUV is built for comfort, not for sporty performance. The sinews tighten up in Sport and Sport-plus modes which give it more engagement, especially on corners, but it’s no sports car.”
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Daily Mirror
Model reviewed: RX 450h F Sport
Score: 8 / 10
“The Lexus RX made moving house fun. But more that, that the Lexus RX made moving fun.”
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Evo
Model reviewed: Range overview
Score: 7 / 10
“Luxury SUV is now available with a 2.0-litre turbocharged engine, but hybrid is still the car to go for.”
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Green Car Guide
Model reviewed: RX 450h L
Score: 8 / 10
“There’s lots of performance, and although the Lexus RX 450h has an electric driving capability, this is very limited. The real-world fuel economy may be good for a 2.2 tonne 7-seater petrol SUV, but if you’re looking for a high miles per gallon figure in real-life, then you may have to look elsewhere.”
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Model reviewed: RX 450h
Score: 8 / 10
“The Lexus RX 450h is an impressive technological accomplishment that can deliver refinement, luxury and potentially, relatively low emissions.”
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Heycar
Model reviewed: Range overview
Score: 7 / 10
“It’s fair to say that the British public have never quite taken to the Lexus brand with quite the same ardour or enthusiasm as the Americans or the Japanese, but the RX is one of the firm’s success stories in the UK.”
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Honest John
Model reviewed: Range overview
Score: 8 / 10
“Standard equipment on the RX covers pretty much everything you’d ever want or need, and includes many features which would cost you extra on rivals.”
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Model reviewed: RX 450h
“Combine a smattering of updates with a fashionable hybrid engine, a comfortable ride and a reputation for excellent reliability, and the Lexus RX is now a very strong contender.”
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Parkers
Model reviewed: RX L
Score: 8 / 10
“The Lexus RX L is a clever addition to the RX family, spreading its appeal to more drivers. We can recommend one for buyers who appreciate build quality in a seven-seat SUV, and don’t want anything in the least bit sporty.” (Tim Pollard)
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Model reviewed: Range overview
Score: 8 / 10
“The RX offers something different, and temptingly low running costs for private and fleet drivers mean it’ll make a lot of peoples’ shortlists.”
The Sun
Model reviewed: RX 450h L
“It’s at the same time old-school Jag and Honda concept car. Lexus would do well to pick a lane, and I suggest the latter. In the UK, the RX L is a three-star car. If you read reviews on American websites you’ll probably find they’ve given it four or five.”
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The Sunday Times
Model reviewed: RX 450h
Score: 8 / 10
“Replaces dynamism with the calming aura of whale music and scented candles”
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The Telegraph
Model reviewed: RX 450h
Score: 6 / 10
“It’s comfortable, reliable and beautifully finished; with better resolved suspension and a larger boot, the Lexus RX 450h would be ideal for those getting the jitters about diesel power in their next luxury SUV. As it is, it’ll work well for some, but not for others – if you need to haul large loads and do lots of motorway miles, you might be better off looking elsewhere.”
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Model reviewed: RX 450h L
Score: 6 / 10
“For all its new seven-seat capacity, the RX remains a very North American product in the way it drives and the design of its cabin. The hybrid system shows itself to be super smooth and reasonably economical, the ride is comfortable and the accommodation is reasonably spacious.”
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Top Gear
Model reviewed: Range overview
Score: 6 / 10
“It feels very solid and if Lexus’s reputation is anything to go by, ought to go on for years and years. Competitors like the Volvo XC90 are ultimately nicer products and more versatile family cars, but the Lexus RX certainly isn’t without appeal.”
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What Car?
Model reviewed: RX L range
Score: 6 / 10
“The Lexus RX L is comfortable, well equipped and offers the option of seven seats. It’s biggest drawback is that despite several updates and refreshes it’s hard to hide RX L’s age. With its non plug-in hybrid engine, it just feels a tad behind the times.”
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Model reviewed: RX range
Score: 6 / 10
“There are a fair few reasons to like the latest RX. For a start, the interior is attractive and comfortable, helped by the absorbent ride and generous standard equipment. However, the Audi Q7 remains our favourite luxury SUV by offering a plusher interior, more passenger space and a better infotainment system.”
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Safety rating
Independent crash test and safety ratings from Euro NCAP
Overall score: 5 stars
Date tested: December 2015
Date expired: January 2022
Read the full Euro NCAP review
Adult protection: 91%
Child protection: 82%
Vulnerable road users: 79%
Safety assist: 77%
The Fourth-generation Lexus RX was originally crash tested by Euro NCAP back in 2015 and awarded a five-star rating. However, this rating expired in January 2022 and is no longer valid as the car no longer meets the standards required for such a rating.
Eco rating
Independent economy and emissions ratings from Green NCAP
No eco rating
The fourth-generation Lexus RX was not lab tested by Green NCAP during its production life.
Reliability rating
Reliability data provided exclusively for The Car Expert by MotorEasy
Total claims: 32
Average repair cost: £456.17
Last updated: January 2024
Reliability score
All data based on MotorEasy average workshop costs for extended car warranty claims
The Lexus RX has an above average reliability score, according to warranty claim data provided by our partner MotorEasy. This data refers to these fourth-generation models, and previous (pre-2015) versions.
While MotorEasy warranty holders haven’t submitted many Lexus RX claims, it is clear to see that suspension and braking system issues are the most common. While braking system faults are likely to cost around £200 to correct, suspension issues are more expensive, costing more than £400 on average.
If you’re looking at a used Lexus RX, make sure any extended warranty cover you purchase covers all of these potential problem areas.
Running cost rating
Monthly cost of ownership data provided exclusively for The Car Expert by Clear Vehicle Data
Fuel consumption | Average | Score | Variation | Score |
Hybrid models | 35 mpg | D | 34 – 36 mpg | D – D |
CO₂ output | Average | Score | Variation | Score |
Hybrid models | 182 g/km | C | 178 – 186 g/km | C – C |
Insurance group | Average | Score | Variation | Score |
All models | 41 | D | 41 – 42 | D – D |
The Lexus RX is a relatively very expensive car to own and run, according to whole-life cost numbers provided exclusively to The Car Expert by our data partner, Clear Vehicle Data. However, it should be noted that we don’t have a complete set of data for this model due to its age.
Fuel consumption is poor, although you’d expect it to be so on a large five-seat premium SUV. We don’t have servicing cost data, but Lexus servicing tends to be relatively expensive as well – on a par with other premium brands.
Awards
Trophies, prizes and awards that the Lexus RX has received
2020
- Auto Express Driver Power – Best Non-Plug-In Hybrid Car
2019
- DrivingElectric Awards – Best Premium Hybrid Car
- Auto Express Driver Power – Best Large Luxury SUV
2018
- Auto Express Driver Power – Best Large Luxury SUV
2017
- Auto Express Driver Power – Best Large Luxury SUV
Similar cars
If you’re looking at the Lexus RX, you might also be interested in these alternatives
Audi Q7 | BMW X5 | Jeep Grand Cherokee | Land Rover Discovery | Maserati Levante | Mercedes-Benz GLE | Porsche Cayenne | Range Rover Sport | Volkswagen Touareg | Volvo XC90
More information
More news, reviews and information about the Lexus RX at The Car Expert
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