OWNER ANSWER
SEALION 7: change ambient-light brightness, colour and area
Open Settings → Vehicle → Light → Ambient Light to adjust the decorative cabin lighting. The SEALION 7 handbook lists brightness, colour and area controls. Use those settings if the dashboard lighting feels too bright at night, rather than changing the reading lamps.
SEALION 7, RHD 07.2024 EN_V0; equipment as fitted. Menu wording can change with software.
- Open Settings → Vehicle → Light → Ambient Light while parked.
- Reduce brightness first, then choose a colour that is comfortable for you in the actual lighting conditions.
- Use the area control provided on your screen to choose where the decorative lighting appears. Check the result in the cabin after each change.
- If a software version offers additional lighting effects, use their on-screen labels. The cited handbook does not specify a universal switch for every animated effect.
What success looks like
The selected lighting area responds to the brightness and colour settings. This changes decorative strips; it is separate from the cabin reading lights that illuminate the seats when a door opens.
If that did not work
If only one strip remains dark, compare it with another area using the same colour and brightness, and note whether the fault affects every colour or just one. Ask BYD to check the affected lighting strip and its connection. If the menu is missing or has different area options, use the handbook for your software and equipment, or ask BYD to identify the matching control. Do not remove trim or install a lighting modification as a troubleshooting step.
Useful next steps
BYD SEALION 7 RHD 07.2024 EN_V0 handbook, PDF pages 81. Checked 13 November 2026.
Open source (BYD UK)