Factory Warranty

Plain-English definition: A factory warranty — also called a manufacturer’s warranty or new car warranty — is the coverage that comes with a vehicle from the manufacturer. It is part of the vehicle purchase and covers certain repairs for a set period of years or miles.

Quick Answer

When you buy a new vehicle, it comes with a factory warranty from the manufacturer. This warranty promises that the manufacturer will repair or replace certain components that fail due to defects in materials or workmanship within the coverage period.

A factory warranty is not purchased separately — it is included in the cost of the vehicle. The scope and duration vary by manufacturer.

Auto warranty and vehicle protection coverage varies by provider, contract, vehicle, mileage, location, and eligibility.

Common Factory Warranty Types

Most manufacturers offer multiple warranty tiers on new vehicles:

Bumper-to-Bumper (Comprehensive) Warranty

Covers most vehicle components
Typically lasts 3 years or 36,000 miles
Excludes wear items, maintenance, and damage

Powertrain Warranty

Covers engine, transmission, and drivetrain
Typically lasts longer than bumper-to-bumper (e.g., 5 years / 60,000 miles)
More limited in scope

Corrosion / Rust-Through Warranty

Covers perforation of body panels from corrosion
Typically lasts 5 to 7 years

Emissions Warranty

Required by federal law for emissions system components
Duration varies

What Factory Warranties Typically Exclude

Factory warranties do not cover:

Routine maintenance (oil changes, filter replacements, tires, brakes)
Damage from accidents, neglect, or misuse
Cosmetic damage
Normal wear and tear
Pre-existing conditions at time of purchase

When Factory Warranty Coverage Ends

Once the factory warranty expires, the vehicle owner assumes full financial responsibility for covered repairs. This is often the point at which comparing vehicle service contracts makes the most sense.

See: Best Time to Buy an Auto Warranty