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Key Issues & Policies

The issue

A warranty is a contract between the manufacturer/dealer and the buyer. It covers certain mechanical breakdowns, and the parts and labor repair costs.

Auto Care position

The Magnuson-Moss Warranty Act bars manufacturers from voiding a vehicle's warranty just because an owner used an aftermarket part. To deny a claim, the manufacturer has to prove that a specific part caused the defect. They can't deny coverage just because the part isn't OEM.

For years, new car dealers and manufacturers have told customers the opposite: that anything but OEM parts and dealer service puts their warranty at risk. That claim has been false since 1975, when the law took effect. The FTC sent warning letters to several major automakers in 2024 over exactly this practice (verify this before publishing, it's not in your project files, and I want you to confirm the date and which automakers before it goes live).

The fight has moved past warranty stickers. Automakers now control the diagnostic data independent shops need to even start a repair. Maine's right-to-repair law, enacted in 2026, requires manufacturers to open up that telematics access by September 2027. The federal REPAIR Act (H.R. 1566/S. 1379) would do the same nationwide.

Red Flag Checklist

Know what to look for to determine if you are being misled about your vehicle warranty. As a warrantee, you should receive a clear, easy-to-understand warranty that includes who and what is covered; an explanation of the warrantor’s and your responsibilities, including where you may have your vehicle serviced; the expiration date; and ways to handle disputes with the warrantor. If you have questions about your vehicle warranty, contact the warrantor or dealership/manufacturer.

RED FLAGS

The warranty is difficult to read and comprehend, and you are unsure of the specific terms that are outlined. You are unsure what is covered by the warranty.

A representative insists that you service your vehicle at the dealership to keep your warranty intact.

A representative is aggressive and refuses to release your vehicle if you do not have your vehicle serviced at the dealership.

A representative explains that you must use original equipment manufacturer (OEM) parts when having your vehicle repaired to keep your warranty intact, or the dealer voids the warranty for using aftermarket parts.

A dealer refuses your warranty coverage because you obtain services at another repair shop.

A dealer will not put repair terms and costs in writing.

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