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MYBYD · HANDBOOK-CHECKED ADVICE CARD

BYD ATTO 3 EVO
Keep the explanation.

Reviewed 7 October 2026. Saved copies reflect this review date; check the live page for changes.

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Handbook artwork for Low-voltage power system fault warning light
Colour: Red

Low-voltage power system fault warning light

What it means

Outside charging/discharging, this warns about the DC module and low-voltage battery module. During charging it indicates a charging-system failure; while moving it indicates a DC or low-voltage-system problem.

What to do

If it appears while moving, turn off A/C and fans, park safely immediately and contact BYD, as this handbook requires. Do not assume it is a harmless discharged 12V battery or attempt to clear other warnings by charging that battery.

Handbook-based owner explanation, not a verbatim quotation. Check the accompanying instrument-panel message.Meaning and response handbook-checkedBYD ATTO 3 EVO · UK handbook 12.2025 EN_V0BYD handbook · PDF p. 42
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