Upon entering the website, you should see a bright blue pop-up like box somewhere on the screen. Enter your info and select the kind of gift card you want (I believe there are Visa, Amazon, or Target).
When looking for a dealership that participates, use the dealership locater on the website. Participating dealerships will have a "Test Drive" icon to distinguish them.
Print your voucher and schedule a test drive. Do your thing and wait for the GC
https://m.hyundaiusa.co