A service contract is an answer to one problem: the chance of an unplanned repair bill on a specific car at a specific time. Sales conversations often start with a different problem, the seller's need to close the sale today. The two can overlap, but they are not the same, and it helps to know which one is driving the conversation.
Signs the pitch is solving the seller's problem
Watch for a deadline that says the offer disappears if you do not sign now. Notice whether the first number you hear is a payment figure with no contract length or total cost beside it. Be cautious if you are told the car will be unprotected the moment you walk away, or if the contract is bundled with financing before you have read its terms. A pitch that will not let you take the paper home is telling you what it needs from you.
Tell whether you have the problem
Can you name the specific failure you are worried about, in plain words? Is this a car you plan to keep long enough for that failure to become likely? Would a surprise repair stop your household from getting to work or school, or would it simply cost money you could plan for? Does your own repair history, or the history of this model, show that failure? Do you have another way to pay for a repair, such as savings or an existing credit line? If you cannot answer most of these, the worry may belong to the seller more than to you.
Next steps
Write the worry down in one sentence. Then check the contract's covered and excluded parts for that exact failure, not for coverage in general. Read the cancellation, refund, and transfer lines. Take the paper home and read it without the seller in the room. If you still want the contract after that, you have made the decision on your own terms.
To see how this desk scores published terms, read the methodology page for vehicle service contract companies. The method describes what we measure, and it is not a recommendation for any particular contract or seller.