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The tire specifications on Your 2011 Hyundai Sonata indicate a tire size of 225/45r18 and a wheel size of 18 inches. Maintaining a recommended tire pressure of 35 psi is crucial for safety. It is recommended to regularly check your tire air pressure at least once a month using a reliable tire gauge. Ignoring low tire pressure warnings can be hazardous and potentially lead to a blowout. If the tire-pressure warning light illuminates, it is important not to overlook it, as there could be a risk of getting a flat tire. Low pressure may be caused by a leak or simply due to the natural tendency of tires to lose pressure over time. When air pressure drops too low, the tire's sidewalls become more flexible, causing heat to build up within the tire.
The standard wheel size on the 2011 Hyundai Sonata is 18 inches, with tires measuring 225/45R18. To keep your Sonata running smoothly, make sure to maintain a tire pressure of 35 pounds per square inch (psi).