How to Solve Keyless System Malfunction?
2 Answers
Damaged wiring, repair is needed. Replace the key battery, which requires the owner to pay for it. If you are skilled, you can also replace the battery of this model by yourself. If it is not due to human reasons, you can go to the repair shop for a free replacement during the warranty period.
I once encountered a situation where my car key couldn't unlock the door, and I was really anxious. After checking, I found out that the button battery in the key was depleted, and replacing it with a new one solved the problem. It's also important to check whether the vehicle's own battery voltage is stable, as weak voltage can affect the system's ability to receive signals. Environmental interference shouldn't be overlooked either—placing mobile phones or Bluetooth devices nearby can block the key's signal, so try moving them away or operating from a different position. If the spare key works fine, it indicates the main key is faulty and can be duplicated. If all else fails, don't force it; scheduling a professional inspection at the 4S dealership is the safest option. They can use diagnostic tools to pinpoint the issue and prevent further damage. To prolong battery life, always keep the key dry and avoid dropping it. These tips have helped me avoid unnecessary trouble on the road and stay much safer.
