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What size tires are on a 2018 Lexus GX460?

The stock tire size for most 2018 GX460 models is 265/65R17 on 17-inch wheels; if your vehicle has the optional 18-inch wheel package, it uses 265/60R18.

Tire sizing can vary by trim and market, so it’s important to verify the exact specification on your vehicle’s door placard or in the owner’s manual. This ensures you choose the correct replacement size and maintain proper performance.

OEM tire sizes by wheel size

The following list shows the common factory sizes tied to the GX460’s wheel options for the 2018 model year.

17-inch wheels: 265/65R17

18-inch wheels: 265/60R18

These sizes reflect typical factory configurations for the 2018 GX460. Your exact specification may vary by market, trim, or optional equipment. Always confirm with the door placard or owner’s manual.

Verifying and replacing tires

To confirm the tire size currently on your GX460, read the sidewall markings and check the driver’s door jamb placard for the exact specification.

Speedometer and drivetrain considerations

Using a tire size that differs significantly from stock can affect speedometer accuracy and vehicle calibration. For best results, stay within a small tolerance (roughly +/- 2–3%) of the original size when replacing tires.

Summary

In short, the 2018 Lexus GX460 commonly runs 265/65R17 on 17-inch wheels, with 265/60R18 as the size for the 18-inch wheel option. Always verify the exact size on your vehicle’s placard or manual, especially if you have a different market or trim. Matching the overall diameter helps preserve speedometer accuracy and vehicle performance.

What years to avoid GX 460?

The main Lexus GX 460 years to avoid are 2010–2013 due to potential issues like engine oil leaks (valley plate leak), as well as the 2010 model specifically, which had a temporary sales suspension after a rollover risk was identified during sharp turns. Later models, especially 2016 and 2017, may be more prone to oil leaks as well, though not as critically as the earlier years.
Years to be cautious about

2010–2013: These early models are more frequently cited for potential problems, such as the valley plate coolant leak, which can be expensive to repair.
2016 and 2017: These years have been noted by some owners as having a higher likelihood of oil leaks.

Model years generally considered more reliable

2014 and later: These models reportedly have a different, less leak-prone head gasket.
2021 and 2022: These years are specifically highlighted as being very reliable.

Other potential issues to consider with any model year

Secondary Air Injection System: Problems with this system can be costly to repair.
Suspension: Models with the optional AHC (Adjustable Height Control) or KDSS (Kinetic Dynamic Suspension System) can experience issues, though Lexus has issued a TSB (Technical Service Bulletin) to address a leaning issue in some earlier KDSS vehicles.
Rust: In areas where roads are salted, rust can be a concern, especially on models driven in the North.
Maintenance: Regular and consistent fluid changes, especially transmission fluid, are crucial to the longevity of the vehicle.

What are common 2018 GX 460 problems?

Also report that the SUV accelerates when the brake pedal is depressed the user and vehicle's safety is put at risk as a result accident risk is increased by braking.

What is the best tire for a Lexus GX460?

The best tires for a Lexus GX460 depend on your driving needs, with top recommendations including the Michelin Defender LTX M/S2 for highway driving and the BFGoodrich All Terrain T/A KO2 or Falken Wildpeak A/T4W for all-terrain capability. For a balance of performance and comfort, consider the Nitto Terra Grappler G2.

For highway driving

Michelin Defender LTX M/S2: A premium choice for highway performance, offering excellent traction, comfort, and longevity.
Yokohama Geolandar X-CV: Another top option with a design optimized for a quieter ride, improved wet-weather traction, and long tread life.

For all-terrain and off-road

BFGoodrich All Terrain T/A KO2: A popular and rugged option known for its maximum off-road grip and durability on any terrain.
Falken Wildpeak A/T4W: Blends all-weather protection with all-terrain capability, making it a versatile choice for adventure.
Goodyear Wrangler Duratrac RT: Provides rugged reliability and all-season traction for those who tackle some off-roading.

For a mix of on and off-road

Nitto Terra Grappler G2: A well-rounded tire suitable for both work and play, performing well both on and off the pavement.
Pirelli Scorpion All Terrain Plus: Engineered for optimal off-road performance on 4x4 vehicles and trucks, while still providing all-season capability.

What tires come standard on a Lexus GX460?

265/60R18
The Lexus GX470 comes with 265/65R17 tires. The Lexus GX460 comes with either 265/60R18 tires or 265/55R19 tires on luxury trims.

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.