So I just bought a new truck yesterday. I found the truck I wanted online and emailed back and forth with the dealer until we made a deal.I would start with a demand letter requesting compliance with the contract. If they do not comply, you do need to file a claim in arbitration. Most arbitration provisions only provide for a short opt-out period that will be tied to a specific date. Easily find contact information, links to dealer tools and our income calculator on GM Financial's Dealer Support page. You must complete the "Claimant" and "Respondent" portions on the front of a Submission Agreement. In the blank spaces provided for the claimants' names, you. Find out how to get an arbitrator appointed and the appointment process. A mandatory binding arbitration clause in a car loan states you agree to resolve any disputes with an arbitrator rather than the courts.