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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
If the powertrain fault warning light goes on, the handbook says to contact a BYD authorized dealer or service provider as soon as possible and try not to drive the vehicle.
Immediate actions
- 1Avoid driving where possible.
- 2Record the exact message and conditions.
- 3Contact BYD service promptly.
What to check
Record exact icon/message, driving or charging state and recent conditions
Follow the owner handbook escalation for the warning severity
Do not repair HV, brake, steering, airbag, ADAS, fuel or wiring systems yourself
Possible causes
- ›Official SEALION 5 owner handbook warning-light/dashboard-message chapter.
- ›Exact root cause requires BYD diagnostic inspection; no DTC code is published from this summary.
Related warning lights
Sources
✓BYD New Zealand SEALION 5 owner handbook PDF
For informational purposes only. Always consult a certified service center for diagnosis and repair of warning light conditions.