QUICK ANSWER
What to do
Unlock the car with the mechanical key, hold the smart key against the marked no-power reader in the centre console area, then press the brake and START/STOP button.
STEP BY STEP
Follow these steps
- 1
Remove and use the mechanical key to unlock the driver's door.
- 2
Place the smart key close to the marked no-power sign in the centre console area.
- 3
Press and hold the brake pedal.
- 4
Press the START/STOP button to start the vehicle.
- 5
Arrange replacement of the smart-key battery as soon as possible.
GOOD TO KNOW
Before you finish
- Radio transmitters, substations and other strong electromagnetic sources can interfere with the smart key.
- Avoid storing the key at high temperature or striking it against hard objects.
OFFICIAL SOURCE
BYD Atto 3 Evo owner's manual
Checked against printed manual pages 226. The PDF opens at the corresponding document page where supported.