The timing belt is the part of your vehicle that keeps your valves operating in time with your engine so that it runs properly. Your timing belt synchronizes critical engine functions and makes sure valves are opening and closing at the right time, so a worn or broken timing belt can cause very expensive engine damage. Not only that, but if your timing belt is off, your engine just won’t run.
Like any other moving part, belts wear out naturally. But if you replace your timing belt on schedule, you'll likely avoid the downtime and expense that can result from a broken or slipping timing belt. Ask your advisor when your timing belt is due for replacement.