What happens if the key for one-click start has no battery?
1. When the key has no battery, the key's transmission power is very low, which can make it difficult for the vehicle's sensor to detect. In this case, you can try placing the key as close to the sensor as possible. If you're lucky, you may be able to start the car.
2. If the car has a hidden key slot, it's often located behind the one-click start button. You'll need to remove the plastic button to find it.
3. If the car doesn't have a key slot, the last resort is to place the remote key on the one-click start button and wait for the vehicle to detect the key, allowing you to start the car.