It's great that you're willing and able to support her as she learns how to manage. Yes, give her ideas of where to get help but let her make the calls. She is now an adult who has to learn how to manage for herself. You be there to listen and guide.
My daughter was pregnant at 19. She and her boyfriend were living with me and going to community college. I lovingly told them that because they were pregnant they needed to be on their own. I helped them find an apartment and helped get them set up in it. He left town.
My daughter applied for state aide which provided her with medical care and food stamps. She applied for grants and switched to a school that prepared her for a career. She lived alone in the apartment for 3 or 4 months before her boyfriend came back.
They both then were eligible for state aid that offered more training in job skills. With my $600/month they qualified for a moderate income apartment. When the baby came the state paid for child care.
My daughter made plans on her own. She found out about state assistance and made the calls and went thru the process of applying. I supported her emotionally by being a sounding board.
I suggest that at 22, this girl needs to work out things for herself. She and her boyfriend can find a way. You be the emotionally supportive person. If you're able provide some monetary support but first be sure that they are working towards getting their life together, together.
I don't know the family but it does seem to me that they are going overboard with the tough love. Taking her off insurance seems very hostile. Refusing to turn the car in also seems hostile. Whether or not she can effectively turn it back in depends on whose name is on the contract. I suggest that she investigate that possibility.
Be supportive but don't rush into helping her. Wait until she asks and then talk with her about what she's done/doing and make suggestions. Encourage her to stay in school, if that's a possibility. School will have some resources for her. Don't try to do too much for her. As Cheryl B. said, this experience, if she's allowed to work it out for herself, will give her confidence and high self-esteem.