That is corrrect.
I put the Buyer = Dealer I dropped it off at
I put the Selling Price = 0, because no money transferred hands (Or you might owe taxes on this amount)
DMV has never asked me a question beyond this. But the one time I didn’t fill this out, oh yeah, lots of notices in the mail.
BTW it’s the responsibility of BOTH parties to fill this out. Not just the dealers. One time I traded in a car, and the dealer sent the car to Auction in Oregon and I was getting notices about lapse in registration since the car is now registered in Oregon. That’s when I found out we both have to do it.
Btw Filing Reg-17 Means you intend to reuse the plates on another car to reserve them in your name.
You don’t have to fill out this form if you just want the plates to hang on your wall.
By not filling this out, the Plates can be requested by another person and you cannot put the same plates on another car if they are ‘taken’ this way.