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What to Do When the Car Alarm Keeps Sounding While Using the Key to Open the Door?

2 Answers

NicoleMarie

07/23/25 11:37pm

This situation is likely due to a malfunction in the unlocking chip inside the key. You can have it repaired or replaced at a 4S shop. Disconnecting the remote control host can solve the problem. Then, replace it with a one-way anti-theft device—just install a regular one.

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RafaelDella

08/10/25 7:31pm

That time in the parking lot, the alarm went off as soon as I unlocked the car with the key, giving me a real scare. Let’s do a quick check: First, don’t panic—check if the car key battery is dead and try replacing it with a new one. If it quiets down, problem solved. If that doesn’t work, use the spare key to open the door. If the alarm doesn’t sound, the issue lies with the main key. Try locking and unlocking the car a few times to reset the system. Also, check if the doors are properly closed—sometimes faulty switches can trigger false alarms. If the alarm keeps going off, the car battery might drain, so act quickly. As a last resort, disconnect the negative terminal of the battery for a few seconds to reset it, but be careful not to damage the car’s electronics. Remember to get someone to help to avoid mistakes in the chaos. Regular maintenance of the key and door lock components can help prevent such issues.

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