This content was compiled automatically and has not yet been reviewed by a technician. For reference only.
For reference only. Always confirm part numbers and procedures for your specific vehicle.
Fault diagnosis
BYD DOLPHIN: Key indicator does not flash and the vehicle cannot start normally
The smart key indicator does not flash, and normal starting does not work.
BYD DOLPHIN: Key indicator does not flash and the vehicle cannot start normally
Symptoms
- The smart key indicator does not flash, and normal starting does not work. [1]
Possible causes
- The manual states that this combination of symptoms may indicate an exhausted smart key battery. [1]
Checks
- Check whether the key battery is low and refer to this version's instructions for starting with an exhausted key battery. [1]
What to do
- Have a service provider check or replace the corresponding key battery; do not extend this to all starting faults. [1]
Applicability and limits
- Only applies to the corresponding DOLPHIN configuration in the New Zealand English-language owner's manual; the manual date is not treated as an applicable model year. No actual vehicle model has been linked. Do not extend to vehicles with the same model name, other powertrains or other markets. Scope: unknown [1]
- Only applies to the specific configuration in the cited manual; do not assume applicability to all vehicles with the same model name.
Related part categories
- Low-voltage system / Smart key battery / Keys and body electrics [1]
Sources
[Source 1] BYD DOLPHIN Owner’s Manual NZ 09/2023 — PDF pp.173 / printed pp.172, If Smart Key Battery Is Exhausted (accessed 2026-11-01)
https://www.bydauto.co.nz/storage/uploads/81ddab61-b06e-4761-bb8d-9f897c9a7901/BYD-DOLPHIN-Owner%27s-Manual_NZ_09_2023_website.pdf
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