We earn commissions from purchases you make using links in our articles. Learn more. If your car or truck’s check engine light is on, there’s a stumble when accelerating, or if the transmission just ...

An OBD2 (On-Board Diagnostics II) scanner can provide information about the status and health of various vehicular systems.

A high-tech automated vehicle inspection system is already used by 300 dealerships nationwide. Customers drive through a scanner, receiving a full condition report with potential defects in seconds.