BYD child-presence detection: alerts, settings and safe checks

Never rely on the detection system

Before locking or walking away, physically check every seating and load area. Never leave a child, vulnerable person or animal in a parked vehicle because an alert appears active, climate control is running or an app remains connected.

If the alert seems wrong

1. Respond to the real situation first and make sure nobody is at risk.
2. When safely parked, photograph or record the exact warning and whether it appeared on the vehicle, key or BYD app.
3. Note the exact model, model year, full software version, occupied seats and any child seat, luggage or loose object present.
4. Use the current manual to identify normal controls and accessible sensing areas. Do not cover, disconnect, modify or strike sensors.
5. Check whether the same alert returns with the cabin empty and ordinary loose items removed.

Can it be permanently disabled?

Do not assume another model’s video or menu applies. Whether a control is available, permitted or retained after restart can depend on the exact vehicle and software. MyBYD does not recommend defeating an occupant-safety function, and no setting replaces checking the cabin yourself.

When to request diagnosis

A persistent empty-cabin alert, a missing warning when the vehicle says one should occur, or behaviour that changed immediately after an update needs authorised advice. Give BYD the recorded model, version, warning and conditions rather than repeatedly testing with a person or animal inside.