How often does 2006 Toyota Sienna tming belt should be changed?

The timing belt on a 2006 Toyota Sienna should typically be replaced every 90,000 to 100,000 miles, or according to the manufacturer's recommendations. It's important to follow the maintenance schedule outlined in the owner's manual, as a worn or broken timing belt can lead to significant engine damage. Regular inspections can also help determine the belt's condition.