A driver who marks parts on a Toyota before a dealership appointment wants to answer one simple question: Did the shop actually do the work? It sounds suspicious, perhaps even a little excessive, until a repair invoice lists services that a customer cannot easily verify.
A tire rotation takes minutes to describe on paper. Replacing an air filter sounds straightforward. Yet customers rarely watch every step while technicians work behind closed doors. That leaves a gap between what the invoice promises and what the owner can personally confirm.
