Why can't the BYD S6 detect the key with one-button start?

1 Answers
DelConnor
07/29/25 6:47pm
The reasons why the BYD S6 cannot detect the key with one-button start are as follows: 1. Poor key placement: For example, in the trunk, on the floor inside the car, in the cup holder, in the glove compartment, in the door panel storage box, near the rear parcel shelf, or under the front windshield. If this issue occurs, try placing the key in a visible location within the passenger compartment first. 2. Low key battery: The remote key typically uses a standard button cell battery with a rated operating voltage of around 3.3V, and under normal conditions, its lifespan can reach up to 2 years. 3. Use of a key case: This may weaken or block the signal. 4. Signal interference: Placing the key near devices such as mobile phones, laptops, or power adapters. Since these radio devices emit wireless signals that can interfere with the smart key, keep the key away from such devices when in use. 5. Faulty key chip: This may result in poor or no signal transmission. 6. Malfunction of the in-car oscillator or related components: This prevents the formation of an effective electronic oscillation zone, leading to failure in scanning and recognizing the key. 7. Issues with the antenna in the rear window glass: If the signal cannot be received, check whether the antenna signal amplifier is functioning properly or if window tinting is blocking the signal. 8. Deviation in the vehicle's signal code rate: This requires reloading the matching code between the key and the car.
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