jinni

i don't know what to do. service light went on in November, 2024. i had it serviced at Ford which has always been good at oil changes without a large bill, $60. A dozen things were replaced, things that apparently didn't need to be done according to 2 car friends. car is 7 yrs old but only 30,000 miles. was ok for a month then in december the wrench light went on for a day and took it for service. relaced 12 volt battery in back which was appartently overlooked the first time. then in january service light went on again but went off after 2 days. now in february service went off again but service dept could find nothing wrong. service light went off for a month. just now in march 2025 light came on again and wrench light too, but only for a day. i don't know what to do. my grandson is bringing his scanner tomorrow to see what he can determine. any and all ideas welcome from you all. thanks.