Primarily developed for Europe and Japan,[6] it was introduced in June 2023 in Milan, Italy as the smallest crossover model in Lexus' lineup, slotting below the C-segment UX.

According to Endo, achieving the desired level of refinement in the LBX to keep up with Lexus standards was challenging, as they had to adopt a different approach to the traditional use of sound insulating materials.

As the result, the battery output can be maximised to capitalise on a larger electric motor than in the Yaris Cross.

[3] The LBX is the first Lexus vehicle to use the front-wheel drive, B-segment based GA-B platform.

The compartment offers 332 litres (11.7 cu ft) for front-wheel drive models with seats in place.

The “Hey Lexus” assistant responds to both front seat passenger and driver commands.

Apple CarPlay and Android Auto are both standard on the LBX, however a smart key is optional.

The LBX adopts a bi-polar nickel–metal hydride battery, which according to chief engineer Kunihiko Endo offers much greater power density and throughput potential than traditional lithium-ion cells.