Does my vehicle have a timing belt or timing chain? Contact Toyota. Chat Now. Not finding your answer? Does my vehicle have a timing belt or timing chain? Below is a quick reference chart to identify if your vehicle has a timing belt, chain or gear. For more details such as recommended change intervals, please refer to the When Should I Replace The Timing Belt? - Toyota Parts Blog The timing belt is responsible for controlling the camshafts in the engine, and works to regulate the valves at precise intervals. This process depends on a functioning timing belt in order to operate properly. If the timing belt breaks, the best case scenario is the car will stop operating. Toyota Timing Belt Or Chain (Complete List) - TBK GARAGE Aug 15, 2017Toyota uses both timing belts and timing chains in their vehicles, and it is important to know which type your vehicle employs. Timing belts require more maintenance than timing chains and need to be replaced every 60,000 to 90,000 miles.