Used Car Warranty Claims Under Magnuson-Moss — What's Covered

Three written warranties that trigger MMWA on used vehicles

1. Remaining factory warranty. If the vehicle is still inside the original manufacturer's bumper-to-bumper or powertrain period (or any other factory warranty — corrosion, hybrid battery, emissions), MMWA applies just as it would to the original buyer.

2. Certified pre-owned (CPO) warranty. Most major manufacturers offer CPO programs that extend the original warranty by 1-3 additional years (and sometimes additional miles). If your vehicle has CPO coverage, MMWA covers the entire CPO warranty period.

3. Dealer used-car warranty. Many dealerships provide written used-car warranties — 30 days, 90 days, or longer. As long as the warranty is in writing, MMWA applies. Verbal promises don't count. Salesperson assurances don't count. Written warranty = MMWA coverage.

Extended warranties and service contracts

Extended warranties (whether manufacturer-issued or third-party) are written warranties for MMWA purposes. Same for service contracts that promise to repair specific covered components.

There's a wrinkle for third-party service contracts: MMWA's definition of 'warranty' has been interpreted by courts to sometimes exclude pure service contracts that aren't tied to the original product sale. This is a fact-specific argument — but most third-party extended warranties qualify when they're sold at the point of vehicle purchase.

The implied warranty of merchantability — even without a written one

Even without any written warranty, every used vehicle sold by a dealer (not a private party) carries an implied warranty of merchantability under state UCC law — unless the dealer specifically disclaimed it 'as-is' in writing.

If your dealer DIDN'T mark the sale 'as-is' on the buyer's order, the implied warranty applies, and federal MMWA covers breach-of-implied-warranty claims. Many dealers fail to properly disclaim — and consumers don't realize they have leverage.

Check your purchase paperwork for an 'AS IS — NO WARRANTY' disclosure. If it's not there, you may have implied-warranty leverage. Read more about used-car coverage.

Lemon-law-style remedies under MMWA for used vehicles

MMWA's remedy framework applies the same way to used vehicles: if the manufacturer (or dealer-warrantor) has had a reasonable opportunity to repair and hasn't, the consumer is entitled to a cash settlement, replacement, or rescission of the sale.

We typically pursue cash settlement on used-vehicle cases: defendant pays diminished value, consumer keeps the vehicle. The math works because the vehicle's price is already lower than new, so the cash settlement number is more reasonable for the manufacturer or dealer to write a check for.