Final answer:
In general, you are not legally liable for accidents caused by mechanical failures on your vehicle, but there are exceptions where you can be held liable if you knew about the issue and failed to address it.
Step-by-step explanation:
In general, the statement that you are not legally liable for accidents caused by mechanical failures on your vehicle is false. While it is true that mechanical failures can sometimes be unforeseeable and therefore not your fault, there are situations where you can be held liable if you knew about the mechanical issue and failed to address it.
A counterexample to this statement is when a car manufacturer knows about a defect in their brake system but still decides to produce and sell the cars. If accidents occur due to brake failures, the manufacturer can be held liable for the injuries and deaths caused by the defect.