BYD ATTO 2 key battery exhausted and professional recovery
Find the backup smart-key start sequence when the key battery is dead, and handbook transport guidance for a recovery operator. RHD 07.2025 EN_V1.
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Published MyBYD guidance.
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20 closer matches on this page. Check that the guide covers your car before following its instructions.
BYD ATTO 3 key battery exhausted and professional recovery
Find the backup smart-key start sequence when the key battery is dead, and handbook transport guidance for a recovery operator. RHD 07.2024 EN_V4.
BYD ATTO 3 EVO key battery exhausted and professional recovery
Find the backup smart-key start sequence when the key battery is dead, and handbook transport guidance for a recovery operator. UK RHD 12.2025 EN_V0.
BYD DOLPHIN SURF key battery exhausted and professional recovery
Find the backup smart-key start sequence when the key battery is dead, and handbook transport guidance for a recovery operator. UK RHD 07.2024 EN_V0.
BYD SEAL key battery exhausted and professional recovery
Find the backup smart-key start sequence when the key battery is dead, and handbook transport guidance for a recovery operator. RHD EN-250305.
BYD SEALION 7 key battery exhausted and professional recovery
Find the backup smart-key start sequence when the key battery is dead, and handbook transport guidance for a recovery operator. UK RHD 07.2024 EN_V0.
ATTO 3 EVO says key not detected
ATTO 3 EVO smart-key detection checks, spare-key comparison, emergency detection position and safe support boundaries.
DOLPHIN SURF says key not detected
BYD DOLPHIN SURF smart-key not detected checks, including interference, spare-key testing and safe escalation.
SEALION 7 says key not detected
SEALION 7 key-fob, Digital Key and NFC checks, including interference, backup detection and when to contact BYD Assistance.
BYD Digital Key: setup, sharing and security
Set up, share and use BYD Digital Key securely in the UK, with practical checks before relying on your phone instead of the physical key.
Lost your phone with a BYD digital key? What to do next
Protect a lost iPhone or Android wallet key, separate it from BYD app access and arrange a trusted way back to your car without assuming every key has been cancelled.
BYD ATTO 2 — Smart key warning light
A no-key message after START/STOP indicates that the matching smart key is not detected inside the vehicle. Flashing after START/STOP indicates a low key battery in this edition.
Read the complete response and warnings on the source page. This preview is not a diagnosis or permission to drive.
Sources linked by this page
BYD ATTO 3 — Smart key warning light
The key warning can mean that the matching smart key is not detected inside the vehicle. Flashing after pressing START/STOP can indicate a low key battery; these are different conditions.
Read the complete response and warnings on the source page. This preview is not a diagnosis or permission to drive.
Sources linked by this page
BYD ATTO 3 EVO — Smart key warning light
A no-key warning after pressing START/STOP means the matching smart key has not been detected in the vehicle. Flashing after pressing START/STOP indicates a low key battery in this edition.
Read the complete response and warnings on the source page. This preview is not a diagnosis or permission to drive.
Sources linked by this page
BYD DOLPHIN SURF — Smart key warning light
The key warning with a no-key message means the matching key has not been detected inside. Flashing when START/STOP is pressed indicates a low key battery in this edition.
Read the complete response and warnings on the source page. This preview is not a diagnosis or permission to drive.
Sources linked by this page
BYD SEAL — Smart key warning light
The key may not be detected inside the vehicle. Flashing after pressing START/STOP can indicate a low key battery.
Read the complete response and warnings on the source page. This preview is not a diagnosis or permission to drive.
Sources linked by this page
BYD SEALION 7 — Smart key warning light
A no-key message after pressing START/STOP means the matching smart key has not been detected inside. Flashing after START/STOP indicates a low key battery in this handbook.
Read the complete response and warnings on the source page. This preview is not a diagnosis or permission to drive.
Sources linked by this page
BYD Digital Key compatible phones and Apple Watch
Check BYD Digital Key phone, wallet and Apple Watch requirements before setup, with UK-focused compatibility checks and official-source guidance.
ATTO 3 key or NFC card not working
Safe access checks when an ATTO 3 does not recognise its key, including spare-key and 12-volt warning boundaries.
ATTO 2 Digital Key or NFC card not working
For a failed ATTO 2 NFC card or phone key, first check whether the physical fob still works. Then present the authorised card or device on its own at the car’s marked reader; metal cases and other cards can interfere.
These results link to published MyBYD guides. Before following any steps, check that the guide covers your car and read its warnings.
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