Why does my preorder paperwork say the dealer decides the final price?

That fine print is basically a mechanism for the dealership to play sales tag once they get the keys in their hand. It's not uncommon in this market, especially for new, highly anticipated vehicle launches, but it's a predatory practice you absolutely need to address before the money changes hands. When you put down a reservation deposit, you're reserving the unit, not locking in the final retail cost. The manufacturer might advertise a strong starting figure, but the dealer has wide discretion over the final sale price based on their market demand and the wholesale cost they pay for that specific unit. What those dealers are doing is using the pre-order queue as leverage. They know you want the truck, and they know you were attracted by a specific low number. By reserving the right to decide the price at delivery, they put the power entirely on their side. If demand is high and they know they can't move that unit at the advertised price, they are going to hike it until they get you to sign off on it.

If the advertised price is non-negotiable for you, the standard advice is to push for a written agreement that locks in that specific retail price and mileage allowance before the deposit is finalized. This isn't always possible with initial deposits, but if you are signing a full purchase agreement, you need to make that price point explicit. If they refuse to lock in the advertised price, you have a decision to make. You can walk away from the deal and reclaim your deposit, or you can proceed with the understanding that you are agreeing to negotiate the final price much closer to the delivery date, likely at a much higher cost. Trust your gut on the price jump. If the advertised cost was the deciding factor in your decision to purchase, and the dealer attempts to significantly raise that number closer to the delivery timeline, you need to be prepared to call them out and cancel the reservation. It's a negotiation, and if they are using the pre-order status to manipulate the final purchase price, they are acting in bad faith.

I saw this play out recently when my colleague was lining up an early EV order for a competitor. The dealership initially tried to push the final price up by 12 percent, arguing that market conditions changed after the deposit. We handled it by refusing to proceed untill they signed a specific addendum locking in the advertised retail figure. You defintely need to insist on that guarentee in writing before you put down that refundable deposit, even if the fine print is vague.

The problem here is the assumption that a deposit locks the price. I remember when I bought my first big diesel, the final price wasn't even discussed until the actual bill was right there in front of me, signed and sealed. You gotta keep that old-fashioned common sense. A pre-order is just holding a spot in line, not a locked-in deal on the retail cost. If they can wiggle the price at the last minute, they aren't selling a truck, they are just running a game of chance with your bank account. You need to know exactly what the full contract says before you commit any real cash.