How is liability determined when a leading vehicle changes lanes and is hit by a following vehicle?

[LaneFitz]

During driving, the liability division when a leading vehicle changes lanes and is hit by a following vehicle: 1. The leading vehicle changes lanes illegally: According to relevant laws in China, how liability is divided when a leading vehicle changes lanes and is hit by a following vehicle depends on the specific circumstances. If the leading vehicle changes lanes illegally, such as changing lanes in a solid line section or a no-lane-change section, the leading vehicle generally bears full responsibility. 2. The following vehicle fails to maintain a safe following distance: If the lane markings are clear, and the leading vehicle has successfully and smoothly merged into the lane, but the following vehicle fails to fulfill its responsibility for safe driving and hits the leading vehicle, it constitutes a rear-end collision, and the following vehicle bears full responsibility.