OWNER ANSWER
BYD UK warranty: how to check your cover
Check the warranty document for your exact car and component before booking a repair. BYD’s dated January 2026 notice extends eligible Blade Battery cover to eight years or 250,000 km with at least 70% State of Health, including existing cars; the older general webpage still shows a lower battery mileage.
- Identify the model, delivery date, mileage and component needing attention.
- Find the warranty terms issued for your car and its service history.
- For Blade Battery cover, compare the 15 January 2026 extension notice linked below.
- Ask a BYD repairer for the diagnosis and the warranty term applying to this fault. Safety note: A warranty decision can wait; loss of safe braking or steering, high-voltage warnings, smoke or dangerous damage needs a safe stop and assistance first.
- Confirm approval and any diagnostic charge before authorising work.
- Keep the written repair decision and service record.
What to expect
You receive a written decision identifying the applicable cover and any approved work or charges. General published warranty figures alone do not confirm approval for an individual fault.
If that did not work
If cover is declined or the two sources conflict for your vehicle, request the applicable clause and evidence in writing. Use BYD Customer Service with the repairer’s case reference and the dated extension notice for an unresolved battery-cover question.
What to note down for support: For a claim, the fault onset, mileage, warnings, service history and previous related repairs help. Supply vehicle identifiers privately to the repairer.
What changed in battery cover?
The extension applies to eligible new and existing cars in the UK. The notice excludes mobility-service use, special fleet warranty agreements and ETP3. Time, mileage, health threshold and claim conditions still need matching to the vehicle.
Other components
The general UK page lists basic cover of six years/150,000 km and drive-unit cover of eight years/150,000 km, with model conditions. Separate components and vehicle documents can have different terms; ask which clause applies to the proposed repair.
Related links
Source: BYD UK warranty policy and maintenance · bydukmedia.com: byd extends warranty of blade battery to eight years or 250,000km.html. Checked 22 October 2026.