Originally Posted by
gooselee
I entered my SM number and it said I'm registered, but I have no idea how it knows what my Hertz membership is?
My guess is they use the SkyMiles number in your Hertz Gold Plus Profile... Check it by going to Hertz > My Profile > Membership Details > Frequent Traveler Programs.
Also, in your Delta profile >
Hotel & Car Preferences: There seems to be a place to specify your Car Loyalty Program.
My guess...