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Red lightCritical
Powertrain fault warning light
Service requiredSafety warning — do not ignore this light
This warning light indicates a potentially serious fault. Do not continue driving. Stop in a safe location and contact an authorized service center or roadside assistance. Never attempt to inspect high-voltage or safety-critical components yourself.
What this light means
Powertrain failure indication. Manual advises BYD inspection and avoiding driving when the light is on.
Immediate actions
- 1Avoid driving; contact BYD authorized service as soon as possible.
- 2Record exact dashboard message, speed, SOC, charging state and conditions.
- 3Do not dismantle the system; contact authorized BYD service.
What to check
Confirm exact dashboard message
Stop safely for red/critical warnings
Confirm VIN, market and software with dealer
Possible causes
- ›electric drive fault
- ›power electronics fault
- ›system self-check fault
Related warning lights
Sources
✓BYD SEALION 7 owners manual LHD EN 240820
For informational purposes only. Always consult a certified service center for diagnosis and repair of warning light conditions.