Car Warranty Guide 2026: Factory, Powertrain and Extended Coverage Explained

This is general information, not legal advice. Check your own warranty booklet: coverage can differ by model, model year, powertrain and state.

A new-car warranty is a promise from the automaker to fix defects for a set time or mileage. The headline numbers are easy to compare; the details that decide a claim sit inside booklets most buyers never read. This guide puts the official terms for eight major brands side by side and links to a full guide for each.

How Do Car Warranties Compare by Brand in 2026?

On these official numbers, Hyundai and Kia lead on both basic and powertrain coverage for original owners, Hyundai leads on rust-through coverage (7 years, unlimited miles), Chevrolet leads among the 3-year brands on rust-through mileage (6 years/100,000 miles), and Toyota leads on hybrid battery coverage (10 years/150,000 miles). Ford and Chevrolet extend powertrain coverage to 100,000 miles on their diesel and certain truck engines.

What Is the Difference Between Basic and Powertrain Coverage?

Every brand here splits its New Vehicle Limited Warranty into at least two layers:

• Basic (bumper-to-bumper): covers almost every factory-installed part against defects in materials or workmanship. It is the shorter coverage, 3 years/36,000 miles at six of the eight brands and 5 years/60,000 miles at Hyundai and Kia.
• Powertrain: covers the parts that make the car move: the engine block and internal parts, the transmission or transaxle, and drive axles and related parts. It lasts longer, but component lists differ. Chevrolet, for example, excludes sensors, wiring, the starter and the pressurized fuel system from powertrain coverage.
• Specialty coverages: corrosion, restraint systems, hybrid and EV components, emissions parts and roadside assistance each run on their own clocks.

All coverages start on the in-service date, the day the car is delivered to its first buyer or first used as a demonstrator or company car, not the date a later owner buys it (Toyota 2026 guide; Hyundai 2026 handbook).

Which Warranties Transfer to a Second Owner?

For used-car buyers, transfer rules matter as much as the headline terms:

In practice, a Hyundai or Kia bought privately at year three has the same powertrain coverage left as a Toyota or Ford of the same age: about two years. Before buying used, decode the VIN with our free VIN decoder, confirm the in-service date with a dealer, and follow our used-car checklist.

How Long Are Hybrid and EV Battery Warranties?

Where these brands publish high-voltage battery terms, coverage runs at least 8 years or 100,000 miles; for some hybrids (Kia, Subaru, Nissan e-POWER) check the booklet that comes with the car. Beyond that:

• Toyota: hybrid battery 10 years/150,000 miles from the 2020 model year on (Toyota).
• Hyundai and Kia: Hyundai covers hybrid, plug-in and EV components and Kia covers its EV system for 10 years/100,000 miles; both cover EV battery capacity loss below 70% for that period (Hyundai; Kia).
• Ford: hybrid and EV unique components 8 years/100,000 miles; for battery electric models, capacity below 70% of beginning-of-life is covered for 8 years/100,000 miles (Ford).
• Honda: hybrid battery module 8 years/100,000 miles federally and 10 years/150,000 miles in California-rule states, per its emissions parts list.
• Chevrolet, Nissan, Subaru: 8 years/100,000 miles; Chevrolet notes gradual capacity loss is not covered, while Subaru’s BEV booklet covers the battery for retention of 70% of original capacity.

Gradual capacity loss is treated as normal wear at most brands unless a specific capacity threshold is written into the warranty, so read that clause before buying a used EV.

Separately, federal law requires every automaker to provide emissions warranties. The EPA explains that emission-related defects are covered for 2 years or 24,000 miles, that specified major emission control components (the catalytic converters, the electronic emissions control unit and the onboard diagnostic device) are covered for 8 years or 80,000 miles, and that these warranties apply to used vehicles as well (EPA). Vehicles certified to California rules can carry longer emissions coverage in California and the states that follow its program.

What Do Car Warranties Not Cover?

The exclusion lists in all eight booklets share a common core:

• Routine maintenance (oil changes, filters, rotations, alignments after the first months) and wear items such as brake pads, wiper blades and clutch linings. Subaru is an exception, covering brake linings, clutch linings and wipers for 3 years/36,000 miles.
• Damage from accidents, misuse, racing, modifications, non-approved parts, wrong fuel or fluids, and lack of required maintenance.
• Environmental damage: hail, flood, tree sap, road salt, stone chips.
• Tires, which their manufacturers warrant (Ford and Chevrolet add prorated tire coverage during the basic warranty).
• Vehicles with salvage, rebuilt, flood or total-loss histories, and vehicles with altered odometers.
• Incidental costs such as rental cars, lodging or lost pay, except where roadside or trip-interruption programs reimburse them.

Can You Service Your Car Anywhere Without Voiding the Warranty?

Yes, for routine maintenance. The FTC says it is illegal for a dealer to deny warranty coverage because routine maintenance or repairs were done by someone else, and recommends keeping records of oil changes, rotations and other service (FTC). The automakers’ booklets agree on the conditions: maintenance must follow the owner’s manual schedule, use parts and fluids that meet specifications, and be documented. Hyundai, for example, says missed maintenance invalidates coverage on affected parts (Hyundai), and Subaru asks owners to keep proof of every scheduled service (Subaru). Warranty repairs themselves are done at authorized dealers.

Should You Buy an Extended Warranty?

Every brand in this comparison sells a manufacturer-backed service contract: Hyundai Protection Plan, Toyota Financial Services Vehicle Service Agreements, Honda Care, Kia Distinction products, Ford Protect, Chevrolet Protection Plans, Nissan Security+Plus and Subaru Added Security. Terms run as long as 10 years/175,000 miles for Ford’s PremiumCARE. None of the automakers publishes prices; dealers quote them, and the CFPB says the price is negotiable (CFPB).

A contract mainly pays off in the years after factory coverage ends, so it is worth more to long-term owners and high-mileage drivers, and to second owners of Hyundai and Kia models who have lost the 10-year powertrain term. Our guide, Is an extended car warranty worth it?, walks through the FTC’s checklist and average cost data from the CFPB.

Before buying any plan, the FTC suggests comparing the contract with the factory warranty you already have: when coverage starts, the deductible, which parts are excluded, whether repairs need pre-approval, and whether the plan can be transferred or cancelled (FTC). The CFPB notes that extended plans are optional add-ons whose price can be negotiated, and that you can cancel optional add-ons (CFPB). A plan backed by the automaker is honored through its dealer network; read the contract for where else repairs can be done.

Morgan Reyes

Morgan Reyes is the founder and editor-in-chief of NextCarReview, which Morgan launched in August 2024. A 2022 graduate of Columbia University, Morgan is based in New York and writes and edits the site’s reviews, comparisons and buying guides. Morgan does not road-test vehicles. Every article is built from published primary data: EPA FuelEconomy.gov ratings, NHTSA crash ratings, recalls and owner complaints, IIHS results, and manufacturer specifications and pricing, with each figure cited and checked before publication. Contact: admin@nextcarreview.com

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