When a car changes hands, a service contract either moves with it, stays with the original owner, or ends. Which of those happens is written into the contract, and it can decide whether what you paid still does you any good after you sell. That makes transfer terms a useful test for judging a provider, because two contracts with similar plan language can behave very differently at the point of sale.
What the transfer language should say
Look for four things. First, whether the contract can transfer at all. Second, what form, notice, and deadline apply. Third, whether any charge applies to the transfer, and who pays it. Fourth, what happens to any unused term or remaining value when the car goes to a new owner. If the contract is silent on one of those points, the gap is a question to put to the company, not a detail to fill in yourself.
Questions to put to the company
Ask the company directly, not only the seller, and ask for the answers in writing. Can the contract move to a new owner? What form must be sent, and who sends it? How long after the sale is the deadline? Is any charge applied, and to which party? Does the new owner keep the same terms, or are they reviewed again? Who keeps the proof that the transfer was completed? If the car is sold to a private buyer rather than a dealer, does the process change?
Compare the answers the same way
Put the transfer answers from each company side by side, the same way you would compare the plan terms. If you expect to sell the car before the term ends, a contract with a clear and simple transfer process may matter more to you than a slightly broader plan on paper. If you plan to keep the car for the whole term, a contract that is harder to move may cost you nothing at all. Your own plans for the car should set the weight you give this test.
Read the transfer section before you read the marketing. Some companies post a sample contract you can review before buying, and that is the easiest way to check the language yourself. See the list of providers that publish a sample contract to find them. For the scoring behind our ranking, the methodology page explains how each company's published terms are weighed, including how we treat terms that are missing or unclear.