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 SEAL: Smart key indicator does not flash and normal starting fails
The key indicator does not flash, and the key is not recognised during normal starting.
BYD SEAL: Smart key indicator does not flash and normal starting fails
Symptoms
- The key indicator does not flash, and the key is not recognised during normal starting. [1]
Possible causes
- The manual associates this combination of symptoms with an exhausted smart key battery. [1]
Checks
- Check the low key battery scenario and backup starting instructions; these do not explain every no-start situation. [1]
What to do
- Contact a service provider to check the key battery. Confirm the battery type and OE number against the actual vehicle. [1]
Applicability and limits
- Only applies to the corresponding SEAL configuration in the New Zealand English 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 models with the same 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 electrical system [1]
Sources
[Source 1] BYD SEAL Owner’s Manual NZ 11/2023 — PDF pp.189 / printed pp.188, If Smart Key Battery Is Exhausted (accessed 2026-11-01)
https://www.bydauto.co.nz/storage/uploads/584dac99-9035-4e65-9354-42c1b8162793/BYD-SEAL-OWNER%E2%80%98s-MANUAL-NZ_11_2023_web.pdf
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