How window tinting can affect the warranty. Window tint might impact the warranty of your vehicle, but it's unlikely. The Magnuson-Moss Warranty Act prevents a manufacturer from voiding a claim just because the vehicle is using aftermarket parts.

Does tinting windows devalue a car?

Tinted windows can reduce glare and heat, but they can also reduce the value of your car. Tinting — specifically dark tints — can lower the value of your car and ward off some potential buyers.

What is the warranty on window tint?

What does the warranty cover? 3M's warranty guarantees that their automotive window tint products will not lose their solar reflective properties for the life of your vehicle or as long as you own it. The warranty further covers against peeling, delaminating or bubbling from the glass.