Credit Acceptance Corp. has agreed to a sweeping $710 million settlement with 40 states and Washington, D.C., resolving allegations that the company pushed financially vulnerable consumers into unaffordable subprime auto loans and sold deceptive add-on products. The deal includes roughly $634 million in debt cancellation for more than 55,000 borrowers, along with restitution, civil penalties, and changes to the company’s lending and servicing practices. It also resolves related claims pending in federal court in Manhattan.

The allegations go to the heart of one of the most scrutinized areas in consumer finance: indirect auto lending.