When should the timing belt of the Toyota Crown be replaced?

[StClara]

The Toyota Crown uses a timing chain, which is maintenance-free and does not require replacement. The main function of the timing chain is to drive the engine's valve train, ensuring that the engine's intake and exhaust valves open and close at the appropriate times to allow the engine cylinders to properly intake and exhaust air. The Crown is a mid-to-large-sized car brand under the Toyota Group, with dimensions of 5020mm in length, 1805mm in width, and 1480mm in height, and a wheelbase of 2925mm. In terms of safety, the Crown incorporates braking technology and various excellent driving assistance equipment, including the TRC traction control system, VSC vehicle stability control system, and VDIM vehicle dynamics integrated management system, ensuring grip in various road conditions and achieving outstanding handling effectiveness.