2018 Toyota Sienna Tire Size
Last updated: July 2026
| Trim | Tire size | Pressure (cold) |
|---|---|---|
| L / LE | 235/60R17 | 35 psi |
| XLE / Limited | 235/55R18 | 35 psi |
These are the factory-approved sizes for the 3rd gen (XL30) Sienna. The size on your specific vehicle is printed on the driver's door-jamb placard — trims within the same year can wear different wheels, so match by trim, not just year. Reading the size: in 265/70R16, 265 is the tread width in millimeters, 70 is the sidewall height as a percentage of that width, R means radial construction, and 16 is the wheel diameter in inches.
FAQ
What size tires does a 2018 Toyota Sienna have?
The 2018 Sienna uses 235/60R17 tires on L / LE trims and 235/55R18 on XLE / Limited trims.
What is the recommended tire pressure for a 2018 Sienna?
Toyota recommends 35 psi cold inflation pressure for the 2018 Sienna. Always confirm on the driver's door-jamb placard.
Can I use a different tire size on my 2018 Sienna?
Staying within the factory-approved sizes listed above preserves speedometer accuracy, fuel economy, and safety-system calibration. Consult a tire professional before plus-sizing.