Lexus LS (Mk5) Problems by Year

The fifth-generation Lexus LS (XF50) marked a dramatic shift in philosophy for the flagship saloon. Ditching the conservative three-box silhouette of its predecessors, the Mk5 adopted a swooping, coupe-like roofline and the brand's aggressive 'spindle' grille. Under the bonnet, the traditional V8 was retired in favour of a twin-turbocharged V6 in the LS 500, or a highly advanced V6 multi-stage hybrid in the LS 500h. The result is a car with tremendous road presence, offering a unique, artisan-crafted alternative to the predictable German establishment. Inside, the cabin is nothing short of spectacular. Lexus incorporated elements of traditional Japanese craftsmanship, offering options like Kiriko cut-glass trim and hand-pleated fabric door panels. The refinement is world-class, with active noise cancellation ensuring the interior remains tomb-like even at high motorway speeds. However, the aggressive roofline compromises rear headroom compared to older models, and early versions were heavily criticised for their reliance on the frustrating trackpad infotainment interface, which was thankfully replaced by a touchscreen in later updates. Reliability remains a strong suit, but the LS Mk5 is not immune to the gremlins that plague modern, highly electrified vehicles. The most prevalent issue among UK owners is severe 12V auxiliary battery drain. Because the car's connected systems and security features constantly draw power, leaving the LS parked for more than a week can result in a completely dead battery. Additionally, while the air suspension is highly sophisticated, cars fitted with 20-inch run-flat tyres can still transmit unwanted thumps into the cabin over sharp potholes. Despite these minor quirks, the LS 500h remains an incredibly robust and visually arresting luxury barge.

Select a year below to see the specific problems affecting that model year, with estimated repair costs and severity ratings.