OWNER ANSWER
BYD SEAL automatic power-on: what owners notice
A SEAL’s centre screen waking up does not mean it is ready to move. Check the driver display for READY with the car in P; if automatic power-on has not completed, use the normal brake-and-START/STOP sequence for your edition.
- Keep the recognised key in the cabin and close the driver’s door.
- Hold the footbrake with P selected. Safety note: Secure P and the footbrake while checking. Unexpected movement, a changed brake/steering response or a stop-driving warning needs a safe stop and assistance.
- Check the driver display for READY or an exact key/brake/door message.
- Use the normal START/STOP control described in the matching handbook if needed.
- If key recognition fails, separate it from phones or metal objects and try the supported spare or key procedure.
What to expect
READY appears without an unresolved starting warning. A lit infotainment screen alone does not confirm the vehicle is ready to drive.
If that did not work
If READY still does not appear, give BYD the exact message and key method. Ask it to check the unmet starting condition rather than assuming an automatic-start setting is fitted.
Why some cars appear to start automatically
Owners report automatic-ready behaviour on some SEAL versions. Keep that observation with its model/software: the earlier EN-250305 handbook documents brake plus START/STOP and separate remote starting. The screen alone is not the readiness indicator.
Related links
Source: byd.com: owners manual (BYD UK) · SEAL handbook (BYD UK). Checked 22 October 2026.