A service contract is a promise with an end date, and most buyers only read the start of it. Before you compare providers on coverage or on terms, find out when coverage stops, whether the contract can be renewed, and what you keep if your coverage simply lapses. Those answers decide whether you paid for protection that lasted as long as you needed it.
Read the expiration line first
Look for the sentence that says when coverage ends. Expiration is often measured in time, in mileage, or in whichever comes first. Check whether the clock starts at the purchase date or at the original sale of the vehicle, and whether a mileage limit is counted from the odometer reading at purchase. Write the end point in both measures, then ask the provider to confirm it in writing. Compare that end point with how long you realistically plan to keep the car, not with the longest option the seller offers.
Ask whether renewal is offered
Some providers let you buy a new term before the old one ends. Others require a fresh application, a new inspection, and a new waiting period. Ask whether renewal is offered at all, whether you can buy it before expiration without a gap, whether the vehicle must pass an inspection again, and whether the waiting period restarts. A renewal that restarts the waiting period leaves you unprotected for exactly the stretch you were counting on.
Lapse is a separate question
A lapse happens when a contract ends or cancels and nothing replaces it. Ask what changes on the day coverage stops. Some contracts require a failure to be reported while the term is still running, even if the bill arrives later. Find that reporting sentence and read it against the expiration line, because the two can disagree. If the contract is silent on this, ask the provider to answer in writing before you rely on it.
What to put side by side
Build a short grid with four rows: when coverage ends, whether renewal is offered and on what conditions, whether a waiting period restarts, and what happens to claims that are reported late. Fill each cell from the sample contract or the signed form, not from the sales conversation. If a provider does not publish the answer, treat that gap as a finding in its own right. The providers that publish a sample contract page is a good place to start reading, and our methodology page explains how we handle terms we can and cannot verify.
Keep the end date in your file
Once you sign, copy the expiration and renewal terms into the folder with your other car papers. Set a reminder for a few weeks before the end point, not on the day itself. That gives you time to compare renewal offers, or to decide the coverage is no longer worth buying, without rushing a choice at a service desk.