Thank you for all the advice! I took it to a new mechanic and the only code that is showing is the P0446…no code has appeared in reagards to a faulty transmission. I asked the mechanic to check the trans fluid before doing anything else as we don’t want to spend any money on the car if, in fact, the transmission is going out. I kind of had to pull teeth for him to do it, but he finally agreed.
Again, thank you!