Security & Keyless Entry
My Car Alarm Keeps Going Off — What's Wrong?
Your car alarm goes off at 2 AM for no reason. Again. Here are the most common causes of false alarms and what to do about it.
The 2 AM Problem
A car alarm that goes off for no reason is more than annoying — it kills your battery, annoys your neighbors, and eventually makes you ignore it (which defeats the purpose). Here's what's usually causing false alarms.
Common Causes of False Alarms
1. Bad hood, door, or trunk sensor. Your alarm monitors these switches. If one is faulty, corroded, or misadjusted, the alarm thinks a door opened and triggers. This is the most common cause.
2. Dying backup battery in the alarm brain. If your alarm has a backup battery and it's old, voltage fluctuations can cause false triggers.
3. Faulty shock sensor. If your alarm has a shock sensor and it's set too sensitive, wind, passing trucks, or a cat on the hood can set it off.
4. Old or failing alarm system. If your alarm is 10+ years old, the brain itself may be failing — sending false signals or not arming properly.
5. Key fob battery dying. A weak fob battery can cause intermittent signals that confuse the alarm system.
What to Do
- Check your fob battery first — it's the cheapest fix
- Try adjusting the shock sensor sensitivity if your alarm has a dial
- Have the sensors checked — a pro can test each switch and sensor
- Consider replacing an old system — if your alarm is old and unreliable, a modern system is more reliable and has better features
When It's Time for a New System
If your alarm is old, unreliable, or you don't have one at all, a modern security system is worth it. Today's systems offer:
- Two-way remotes — the fob confirms your car is armed and alerts you if it triggers
- Smartphone integration — get alerts on your phone if your alarm goes off
- Better sensors — more accurate, fewer false alarms
- Keyless entry — convenience and security in one
We Install and Repair Security Systems
At Auto Sounds, we install alarm systems and keyless entry, and we repair systems that aren't working right — including ones other shops installed. If your alarm is going off for no reason, bring it in.
Walk-ins welcome on Front Street in Tyler. Since 1982.
Ready to upgrade your ride?
Walk-ins welcome · Many jobs done the same day · (903) 597-2750
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