The specified dimensions for a Toyota Highlander’s tires are a critical factor influencing the vehicle’s performance, safety, and overall driving experience. These measurements, typically expressed in a format like 245/60R18, denote the tire’s width, aspect ratio, and rim diameter. For example, a tire labeled 245/60R18 indicates a width of 245 millimeters, a sidewall height that is 60% of the width, and a compatibility with an 18-inch wheel. Selecting the appropriate dimensions ensures proper fitment and optimal function.
Adherence to the manufacturer-recommended specifications is paramount. Utilizing the correct tire dimensions preserves the vehicle’s handling characteristics, braking efficiency, and fuel economy. Furthermore, maintaining the intended rolling circumference safeguards the accuracy of the speedometer and odometer, and prevents potential issues with the anti-lock braking system (ABS) and electronic stability control (ESC). The original equipment dimensions are often specified on a sticker located on the driver’s side doorjamb or within the owner’s manual. Historically, tire dimensions have evolved alongside vehicle design to accommodate increasing performance demands and safety standards.