Is there a mobile service to give rides to get my partner out and go to an outing?

I see that he is in a care home. They usually have a van that (in some places)will provide transportation for a fee. Have you asked them?

County shuttles take people in wheelchairs. My step-father uses them all the time.

Since you are on an aging website I am thinking your partner is a senior. Please correct me if I am mistaken. I suggest that you contact Council on Aging in your area and see if they can suggest anything to you. They offer rides to doctor appointments. I don’t know about outings.

What about a church community. For instance at our church there are different ministries for different needs. Check with a local church too.