BYD warranty: how long, which models, and what it gets you
See what the BYD warranty includes and how it compares to other brands
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If you’re considering a BYD – whether it’s the DOLPHIN, ATTO 3, SEAL or SEAL U – you’re probably wondering how the BYD warranty UK works.
When you’re buying from a brand that’s still fairly new on UK roads, a solid warranty can soothe some nerves.
BYD has quickly built a reputation for great‑value cars, and early reviews from UK drivers are looking promising. Still, knowing exactly what’s covered (and for how long) helps take the stress out of ownership.
Here’s your complete guide to BYD warranty, what it includes, and how it compares to other brands.
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BYD warranty explained
Warranty lengths
Manufacturer warranty: Six years or 93,750 miles
BYD battery warranty: Eight years or 124,000 miles
Powertrain warranty: Eight years or 93,750 miles
Corrosion/perforation: 12 years
Applies to all models: Yes - including BYD ATTO 3, BYD DOLPHIN, BYD SEAL, BYD SEAL U, and future models, but exact mileage and time periods may differ
Transferable: Yes - the warranty on BYD cars transfers to new owners
Service requirements: You must follow the BYD service schedule to keep your warranty valid
Exclusions: Wear‑and‑tear, misuse, non‑approved parts, cosmetic damage
This warranty structure has been in place since BYD entered the UK market in 2023, though it’ll likely evolve as the brand grows.
BYD warranty in detail
Standard manufacturer warranty
The standard BYD manufacturer warranty covers most mechanical and electrical components for six years or 93,750 miles. That’s longer than the typical three‑year cover offered by many established brands – like Audi and BMW.
Powertrain warranty
The powertrain – including the motor, inverter and gearbox – is covered for eight years or 93,750 miles. Hopefully, that gives some reassurance for the most expensive EV components.
Corrosion/perforation
BYD offers 12 years of anti‑perforation cover for rust‑through issues caused by manufacturing defects.
Keep an eye on chips or scratches and get them sorted quickly to avoid problems, as these aren’t covered under the warranty.
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BYD warranty duration and limits
Different parts of the car have different warranty periods. They may also differ on each model, so always check with an official BYD dealership for your exact vehicle.
This is the typical warranty setup:
Manufacturer warranty - six years/93,750 miles
Powertrain warranty - eight years/93,750 miles
BYD EV battery warranty - eight years/124,000 miles
Corrosion warranty - 12 years/unlimited
Roadside assistance - six years/unlimited
This applies across the full UK range, including the BYD SEAL, BYD SEAL U, and BYD SEALION 7.
BYD warranty exclusions
Like most brands, BYD doesn’t cover:
Wear‑and‑tear items (tyres, wipers, brake pads)
Damage caused by accidents or misuse
Non‑approved modifications
Cosmetic issues caused by external factors
Problems caused by using non‑BYD parts or fluids
BYD models that have not been serviced according to the required servicing schedule
Making a BYD warranty claim
If something goes wrong, here’s what to do:
Contact your nearest BYD dealer or authorised repairer
Provide your registration, VIN and service history
Explain the issue and when it started
Bring any supporting documents (photos, receipts, diagnostics)
The dealer will inspect the car and confirm if the repair is covered
As long as the car has been serviced correctly, claims are usually straightforward.
BYD extended warranty options
BYD doesn’t currently offer an official extended warranty in the UK, but many dealers offer third‑party extended cover for used cars.
Extended cover can be useful if you plan to keep your BYD long‑term, especially once the standard warranty expires.
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BYD warranty vs competitors
Here’s how BYD stacks up:
MG: Seven years/80,000-100,000 miles
Kia: Seven years/100,000 miles
Chery: Seven years/100,000 miles
BYD: Six years/93,750 miles (plus strong battery and powertrain cover)
BYD warranty FAQs
Does the BYD warranty cover hybrid/electric components?
Yes. All EV components are covered, including the motor, inverter and high‑voltage systems.
Is the BYD warranty transferable?
Yes. If you sell your BYD, the next owner gets the remaining cover.
Can I buy extended coverage?
Not directly from BYD at the moment, but many dealers offer extended warranty packages.
Tips to keep your BYD warranty valid
Follow the BYD servicing schedule
Use BYD‑approved parts and fluids
Keep records of all maintenance
Avoid modifications that affect performance or safety
Keep the battery in good condition
Clean and maintain the car to prevent avoidable damage
Learn more about BYD
The BYD warranty offers solid protection, especially for EV components. Just make sure you follow the servicing schedule and understand what’s included.
Remember that wear and tear isn’t covered, so don’t rely on your warranty for upkeep.
You can explore our full range of BYD guides and browse used BYD cars on cinch, as well as read our BYD reviews (such as our BYD Dolphin review and our BYD SEALION 7 review).
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