How should a shop write about warranties on parts and labor?

A repair warranty page should say, in plain sentences, whether the warranty covers parts, labor, or both; how long it lasts; where the driver can make a claim; what the driver must do to keep it; and how a claim gets decided. Those terms should match the warranty printed on your invoice. Because federal warranty law can apply to a written warranty that covers both the parts and the work of installing them, the page belongs in front of your attorney before it goes live.

Drivers are told to look for this page. The FTC's Auto Repair Basics guide says "There is no 'standard warranty' on repairs," and it points out that "Many manufacturers offer a warranty covering replacement parts, but not the labor to install them." That second line describes exactly the gap a driver needs a shop to explain: if the part fails, who pays to take it out and put a new one in?

This is a content-planning question for shop owners, not legal advice. Warranty wording is a legal statement, and your attorney should approve it. For the other policies a shop site should publish, see our overview of auto repair content.

Separate the warranties a driver hears about

A driver picking up a car may be thinking about three or four different promises at once: the vehicle manufacturer's warranty, the parts maker's warranty, the shop's own warranty on its work, and perhaps a service contract they bought with the car. A parts warranty is not a repair warranty, and a page that blurs them invites the wrong claim at the wrong counter.

The FTC draws one of these lines itself. Its consumer page on auto warranties says "An auto service contract is a contract to perform (or pay for) certain repairs or services," and its business guide notes that "Warranties come with a product and are included in the purchase price." If your shop accepts service contract claims, say so on a separate page and keep that vocabulary out of your own warranty terms. Questions about whether an independent repair affects a factory warranty, and how parts choice plays into it, belong on a page about original equipment versus aftermarket parts.

What federal warranty law says about repairs

The FTC's Businessperson's Guide to Federal Warranty Law explains the Magnuson-Moss Warranty Act. It says the Act covers only written warranties and that "the Act does not apply to warranties on services." It then adds an exception that matters to a repair shop: if a warranty "covers both the parts provided for a repair and the workmanship in making that repair," then "the Act does apply to you." The same guide says "the Act does not require any business to provide a written warranty," and that a warrantor offering a written warranty on a consumer product above the price threshold the guide sets out must state the coverage "in a single, clear, and easy-to-read document."

Whether those rules reach a particular shop warranty is a question for counsel, not for the person writing the page. Before drafting, ask the owner, "If a driver brought back a failed part from a job we did last spring, what would we cover, who would decide, and where is that written?" If the honest answer is that it depends on who is at the counter, the shop needs a written policy before it needs a warranty page. Write down the answer the owner gives, then compare it line by line with the invoice language.

The terms a warranty page has to state

Words like lifetime and nationwide deserve the most care. Lifetime of what: the part, the vehicle, or the current owner? Nationwide through what network, and can the shop document its membership? If the page cannot answer those questions in a sentence, leave the word out.

Put the claim steps in the order the driver will follow them. A driver whose repair fails far from home needs to know, before calling anyone, whether to come back, call the shop first, or go to another shop, and what the terms say about the cost of getting there. If the terms say nothing about towing or travel, the page should not hint that they do.

A fictional example: a tire and brake shop in Georgia

Here is a hypothetical case. A fictional tire and brake shop in Georgia had a banner reading warranty on all repairs and nothing behind it. Drivers asked at pickup what it meant, and advisors gave different answers. The owner rewrote the page from the invoice: coverage on parts and labor for the shop's own work, a stated time and mileage limit, a clear note that parts brought in by the customer carry only the parts maker's warranty, and a three-step claim process starting with a phone call.

The writer set none of those terms. The invoice already carried them, and no writer should have to invent warranty terms for a shop; one who filled the page with a generic one-year promise would have committed the shop to coverage it never offered. Counsel reviewed the draft and tightened the exclusions sentence before it published. The advisors now give the same answer at pickup, because they point to the same page the driver can read at home.

Make the warranty part of the proof

A clear warranty is evidence a driver can weigh, not just fine print. Our article on the proof that helps buyers choose explains why specific, checkable terms persuade better than broad claims. Link the warranty page from the diagnosis and estimate page so the driver sees both before approving work.

Hudson South handles this through four steps. The Authority Asset collects the invoice warranty, any program agreements, and the owner's written policy. Hudson Twenty-One records how the shop talks about promises across 21 dimensions, so the page stays plain rather than salesy. Market Intelligence checks how nearby shops describe their warranties and what drivers ask about them. AEO Creation writes the page with the answer first and the terms in a table a driver can scan.

Compare your warranty page with the shops nearby

On a free 30-minute call, Hudson South walks through how competing shops present their repair warranties and where your terms could be clearer.

Sources

1. Auto Repair Basics. Federal Trade Commission. Read 2026-10-16.
2. Businessperson's Guide to Federal Warranty Law. Federal Trade Commission. Read 2026-10-16.
3. Auto Warranties and Service Contracts. Federal Trade Commission, Consumer Advice. Read 2026-10-16.