Skip the auto shop - Our mechanics make house calls

Q: My alarm is randomly going off

asked by on

I am having problems with the alarm system on my car. Not a day has gone by where I haven't grabbed my keys and had to run to my car because the alarm randomly goes off. I've tried opening and shutting all the doors (along with the hood and trunk), checking the sensor, and attempting to disable the battery. I have not been able to stop it from going off at random. I have had to just lock the doors manually by key in order to avoid setting the alarm. I tried calling the dealership hoping they would have some insight. All they said was to bring it in, and I work a lot so that isn't possible right now. What could be going on?

There are numerous reasons this may be happening. However, there is a technical service bulletin (TSB) #09-BE-026 pertaining to alarm system self activation due to a defective hood switch pad.

The TSB states: The vehicle alarm system may intermittently sound due to light contact of the hood switch pad with the hood switch. The cure is to replace the switch with a revised part, which is taller. A professional, such as one from YourMechanic, will be able to diagnose your vehicle’s electrical system firsthand to determine if this is the problem with your vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Wheel bearings fail often, what is the problem?

This is a common problem on 2005 and 2006 models. Subaru released a technical service bulletin (TSB 03-58-08) for this specific problem. According to the TSB, the rear wheel bearings may develop a noise over time, but that it does...

Q: Black/orange loose wire under my hood, think it's supposed to be plugged into ignition switch harness. Where is the ignition?

Hello there. If there is a loose wire on your 1996 Chrysler Cirrus, than there are a few potential things going on. If the wire is loose, there is a good chance it broke somewhere along the line or it...

Q: Car overheating.

Hi there. The check engine light on this vehicle can turn on from the engine running too cold and too hot. If the coolant level was low from the beginning then the system should have been pressure tested to identify...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.