Question

the odometer tells you
the amount of exhaust your vehicle is emitting
how far your vehicle has traveled in its lifetime
if your vehicles filters need to be replaced
if your air - conditioning needs to be fixed

Explanation:

An odometer is a device in a vehicle that measures the total distance traveled over its lifetime. It has nothing to do with exhaust emissions, filter - replacement needs, or air - conditioning issues.

Answer:

how far your vehicle has traveled in its lifetime