Do tires need to be replaced at 40,000 kilometers?

[McHolden]

If the vehicle has traveled 40,000 kilometers but not exceeded 5 years, and the tire wear is not severe, replacement is unnecessary. Below are relevant details: 1. Wear indicators: The wear indicator height for standard passenger car tires is 1.6 millimeters (this is the legally mandated minimum tread groove depth), while for load-bearing tires it is 2.4 millimeters. 2. Determining tire service life: There is a triangular marker on the tire sidewall indicating the position of the wear indicator. Following the triangle direction, you can also locate raised horizontal bars within the tread grooves - these are the tire wear indicators. When the wear indicators become flush with the tread surface, the tires need replacement.