Why is there no response when pressing the car key to unlock the vehicle?

[GiselleRose]

Reasons why the car key does not respond when pressing the unlock button: 1. The car key battery is dead and needs to be replaced. 2. It may be due to strong radio interference, preventing the vehicle from successfully receiving the key's signal. 3. Damaged components in the car key may cause it to malfunction. 4. The distance is too far for the vehicle to receive the signal. 5. The car battery may be dead. Steps to replace the car key battery are as follows: 1. First, remove the mechanical key to expose the gap in the plastic casing. 2. Use a tool to pry open the key cover once the gap is wide enough. 3. Note the orientation of the battery's positive and negative terminals and remember it before removing the old battery. The new battery must be installed in the same orientation. 4. Close the key cover, ensuring proper alignment to avoid damaging internal circuits during reassembly.