OWNER ANSWER
Why does my original BYD SEAL say the charging port cap is not closed?
After unplugging, check the inner charging-port cap first, then close the outer flap. BYD lists these as separate steps. If both are seated and the warning stays on, ask BYD to check the closure rather than keep pressing the flap.
- With charging ended and the cable removed, open the outer flap normally. Look for a cap left open, displaced or obstructed. After rapid charging, check the lower DC cap you removed to connect.
- Seat the cap before closing the outer flap. The flap should sit flush without extra force.
- Look at the instrument cluster again before setting off. If the cap and flap are secure and the message clears, the closure check is complete.
What success looks like
The inner cap is seated, the outer flap sits flush and the charging-port warning clears.
If that did not work
If the flap springs back or the cap will not seat, stop and ask BYD to inspect the part that will not close. If both look secure and the warning persists, record the exact message and whether it followed AC or rapid charging. A photo of the cap and closed flap can help BYD check the latch and closure detection.
If the socket is wet, corroded, damaged or has something lodged inside it, leave charging disconnected and get it checked.
Useful next steps
- Read BYD’s AC charging close-up steps (BYD UK)
- Check how BYD refits the lower cap after rapid charging (BYD UK)
- Prepare a persistent warning for BYD support
BYD original SEAL RHD EN-250305, printed pp. 82, 84, 87 and 89. Checked 13 November 2026.
Open source (BYD UK)