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 ATTO 3 smart key indicator does not flash and the vehicle cannot start
The key indicator does not flash, and the start function cannot start the vehicle.
BYD ATTO 3 smart key indicator does not flash and the vehicle cannot start
Symptoms
- The key indicator does not flash, and the start function cannot start the vehicle. [1]
Possible causes
- The smart key battery may be depleted. [1]
Checks
- Check whether both symptoms above occur together. [1]
What to do
- Contact BYD to replace the key battery. Temporary starting: unlock with the mechanical key, press the brake pedal and press the start button; within 30 seconds of the beep, hold the key near the no-power mode symbol, then start within 5 seconds after the warning light goes out. [1]
Applicability and limits
- New Zealand ATTO 3, 2022-08 manual edition, battery-electric; the manual date is not a model year, and dictionary mapping has not been established. Scope: unknown [1]
Related part categories
- Smart key battery [1]
Sources
[Source 1] BYD ATTO 3 Owner’s Manual NZ 08/2022 — printed pp.182 / PDF pp.183, If Smart Key Battery is Exhausted (accessed 2026-10-30)
https://www.bydauto.co.nz/storage/uploads/7b3bb839-014f-457f-9f95-45118e270e00/ATTO-3-Owner%27s-Manual-NZ-08_2022.pdf
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