my daughters car alarm keeps going off for no apparent reason and all hours day and night.

Asked by Jun 24, 2014 at 07:21 PM about the 2008 Dodge Avenger R/T

Question type: Maintenance & Repair

She has changed the batteries in the keys. But still keeps going off.

1 Answer

40

Aftermarket alarm or a manufacturer equipped? If it's OE then more than likely there's a problem with the body control module, or a problem with one of the switches or wiring in a door/hood/trunk. Basically what's happening is one of the switches is making the car think a door (trunk or hood) opened and setting the alarm off. Or the module that controls that system is failing. Moisture, humidity or age can cause these problems. If it is one of these problems, sadly enough you're going to have to take it to a shop to have it diagnosed. Other possibility, a weak car battery (2008 would have a 6 year old battery in it if never been changed, even if that's not the culprit I would recommend a new one especially before winter [if you have those]).

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