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The 2003 Toyota Sienna comes with two different tire sizes, depending on the trim package you choose. The XLE V6 models are equipped with P215/65R15 tires, while both the CE and LE models have P205/70R15 tires. Regardless of the model, all Siennas feature 15-inch diameter wheels that are 6.5 inches wide with a 5-lug X114.3 mm wheel bolt pattern. It is recommended to maintain 35 pounds of pressure in each tire. The Sienna is equipped with a tire pressure monitoring system that interacts with sensors in the tires. This system will notify the driver when the tire pressure drops slightly below the recommended level. If the TPMS light comes on, it is important to promptly inflate the tires to the proper pressure. Keeping the tires properly inflated not only helps improve fuel efficiency but also prevents premature wear on the tires.
The 2003 Toyota Sienna is available in 2 versions with 2 different tire size options. The recommended tire pressure is 35 psi. The wheel size is 15 inches, and the standard tire sizes for this model are P205/70R15 for both the front and rear tires.