The Yokohama Rubber Co., Ltd., announced today that it is supplying its GEOLANDAR A/T G31 and GEOLANDAR X-CV tyres as original equipment (OE) for Toyota Motor Corporation’s new 4Runner SUV, which was launched in January 2025. The GEOLANDAR A/T G31 245/70R18 110H tyres are being fitted for Latin America, and the GEOLANDAR X-CV 245/70R17 110T and 265/55R20 113V tyres are being fitted for North America.
The GEOLANDAR A/T G31 tyres are all-terrain tyres with road handling ability that enables use in any off-road situation. Consideration has also been given to their environmental performance, with improvements made to their fuel efficiency and quietness. The optimisation of the pattern, profile, and structure of the tyres being supplied has realised a high level of both comfort performance and steering stability.
The GEOLANDAR X-CV tyres represent a new standard in highway terrain tyres focused on high-speed performance and manoeuvrability. The tyres being supplied have been specially tuned to achieve a significant reduction in rolling resistance while also providing excellent steering stability and comfort and realising high reliability in severe environments.
The tyres being supplied as OE for the 4Runner were developed using Yokohama Rubber’s proprietary HAICoLab, an AI-based development framework that aims to foster new discoveries and digital innovation by merging human inspiration and creativity with AI’s enormous data processing capability. The development of the pattern design was performed using evolutionary computation (genetic algorithms), one of the technologies incorporated in HAICoLab. The innovative technologies applied in the development of these tyres are based on new knowledge obtained by collecting actual data and virtual data generated by simulations and then using AI’s predict, analyse and search functions.
Under Yokohama Rubber’s three-year (2024–2026) medium-term management plan, Yokohama Transformation 2026 (YX2026), the consumer tyre business aims to maximise the sales ratios of high-value-added tyres. One of the key initiatives under this strategy is promoting the global flagship ADVAN brand tyres and the GEOLANDAR brand tyres for SUVs and pickup trucks as original equipment for new cars.
