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SOFTWARE UPDATE

BYD SEAL software update 2.0.0: owner guide

Original SEAL 2.0 adds battery preheating, an AC charging-current limit and scheduled departure, alongside new app and voice functions. After updating, open the charging settings first if those are the changes you want to use.

BYD SEAL software update 2.0.0 illustration

Charging and daily use

  • Battery preheating.
  • AC charging-current limit.
  • Scheduled departure.
  • More system languages.
  • Password pairing through the app.
  • Removal of the speed-limit condition on map use.
  • Cluster brightness for light and dark themes.

Voice commands and refinements

BYD Assistant gains commands for ventilation, maximum cooling, seat heating and ventilation, YouTube on/off and Spotify song requests. BYD also lists battery state-of-charge balancing and cold-weather charging refinements. This is the September 2025 release for the original SEAL.

Install when your car offers it

Matching released EU updates apply to the matching UK car, as confirmed by UK owners. Offers are staged by VIN, so another owner receiving it first does not mean yours has a fault.

  1. Park where the car can remain unused for the duration shown in its update prompt.
  2. Read the car’s notice and match the model, edition, trim and complete package.
  3. Meet the battery and connection requirements shown by the car.
  4. Start or schedule the update through the vehicle’s own screen. Safety note: leave installation running as instructed; interrupting it or using unofficial firmware can leave the software unusable.
  5. Wait for the completed-update message.
  6. Check charging options, scheduled departure and your preferred display theme. The normal controls should be available again after completion.

If the update fails

If installation reports a failure or a warning remains after completion, follow the displayed message and contact a BYD dealer or BYD Customer Service. Give them the full installed version and exact error, and ask them to check the failed package and the required recovery. If the update simply has not appeared, wait for the vehicle notification unless a function is missing or the car reports a fault.

Related links

Source: BYD owner-manual library (BYD UK) · BYD SEAL release archive. Checked 22 October 2026.

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