At how many kilometers should the timing belt of the Buick Excelle be replaced?

[Kingston]

The timing belt of the Buick Excelle should be replaced at 150,000 kilometers. The timing belt is a crucial component of the engine's valve train system. When the engine is running, the movement of the pistons, the opening and closing of the valves, and the ignition sequence must remain synchronized under the connection of the timing belt. Through the engine's timing mechanism, each cylinder ensures that the piston moves upward, just reaching the top dead center, the valves close precisely, and the spark plug ignites at the right moment. The Buick Excelle is a 4-door, 5-seater sedan under SAIC-GM Buick, with dimensions of 4609mm in length, 1798mm in width, and 1486mm in height, a wheelbase of 2640mm, and a curb weight of 1285 kilograms.