How to Turn Off the Mechanical Key Alarm?
2 Answers
Methods to turn off the mechanical key alarm: 1. After the owner presses the start button, the vehicle's alarm system will automatically deactivate, and the alarm sound will stop; 2. Pressing the unlock button will also automatically turn off the vehicle's alarm system, allowing normal vehicle operation; 3. Some vehicles have a black plastic button on the door handle—pressing it will deactivate the alarm system. For vehicles locked with a remote, using a mechanical key to open the door (whether it's the primary or spare key) triggers the system to interpret it as an intrusion. Since the car was locked via remote but opened with a mechanical key, the system defaults to detecting a forced entry, hence activating the alarm.
I have 20 years of driving experience and have encountered mechanical key alarms a few times. Generally, this alarm sounds when starting the car, possibly because the key isn't inserted properly or the battery in the key's internal chip is low. When this happens, I first try reinserting the key to ensure it's fully inserted into the ignition switch. If the alarm persists, I check the key's battery—if it's low, I replace it with a new one, a simple operation. Sometimes, vehicle system faults can also trigger the alarm, such as poor circuit contact. If the alarm keeps recurring, don't ignore it; head to a professional repair shop promptly to avoid bigger issues later. During regular maintenance, I make it a habit to clean the key and ignition switch to reduce dust interference—this small habit proves quite effective.
