Wisconsin Motor Vehicle Salesperson Manual Practice Test

If an odometer malfunctions, it should ideally be repaired within 30 days. This is to ensure accurate tracking of a vehicle's mileage, which is important for maintenance purposes and determining resale value. The other options of 10, 45, and 60 days are incorrect as they either provide too short or too long of a window for repairs, which could potentially lead to incorrect mileage being reported. It is important to address any odometer malfunctions in a timely manner to avoid any further issues.