i understand if you go to a dealer's parts dept you can order parts or accessories using your points, but i couldn't do that when placing order online.
I use Fairway Ford Parts online. They accept FordPass points for online purchases, and they charge about 20% less than my local dealer. Nate runs the web sales. He has always been good to me.
Yes, you can do it online though the Ford accessories website or through the FordPass app. I ordered a bed mat and step rails just last week in this manner. It shows you next to the items how many points to redeem for it. They will ship it to you or to your dealer.
If you go to your FordPass app and hit account>how to redeem points accessories will be an option. It will take you directly to the site. At checkout you can apply them.
Looks like its just for accessories, not merchandise (ie. clothing) that you can redeem online. The merchandise button (although under accessories) takes you to a different site.