How to Disable the Alarm When Using a Spare Key to Start the Car?
2 Answers
The alarm triggered by a spare key is a security feature, which usually cancels once the ignition is turned on. Therefore, quickly inserting the key and turning on the power after opening the door will stop the alarm. Below is relevant information about spare keys: 1. Reasons why the alarm continues after power is on: If the alarm does not cancel after the power is turned on, there are two possibilities: the first is that the key is damaged, and the second is that the key's sensor has failed. Both situations require repair at a 4S shop. Spare keys usually have a small round button; pressing it will release the mechanical key. Insert the mechanical key into the small hole under the cover of the door handle and pry it open outward to reveal the door lock. Insert the metal mechanical key, turn it, and the door will open. 2. Precautions: The spare key is for emergency use and should not be kept in the car under normal circumstances. Otherwise, it could attract thieves, causing significant damage to your beloved car.
Last time I encountered the car alarm going off continuously when using the spare key, mainly because the spare key might not have been programmed, and the anti-theft system didn't recognize it, thinking it was a car theft. The solution is quite simple: First, stay calm, directly insert the key and start the engine, usually the alarm will stop by itself; Second, if it still sounds, try using the master key to unlock and lock the doors again to reset the system; Third, check if the key battery is dead, replacing it with a new one might solve the problem. Usually, I regularly check the key's functionality and avoid exposing the spare key to high temperatures or magnetic fields, as this might cause the anti-theft chip to fail. In case the alarm persists, never force it; it's best to promptly contact a 4S shop or professional repair center to use diagnostic tools to rematch the key coding, ensuring driving safety, after all, this involves a quite sensitive anti-theft mechanism.
