Yup, I only used zip code first time I turned the SDS on. About an hour later I hooked up the GPS and only use that now, whether I am sitting at home or in the RV on the road. That way, my time on the SDS is always correct.Yep I understand, not a feature I use, I actually rarely do a zip code database search but it can come in handy to put just one object on an existing favorites list by holding on the one object, pressing enter and following the prompts to move one object from the database to a favorites list of your choice.