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kmor0815 3/28/2010

1997 Ford F-150 Lariat 8 Cyl 4.6L


car alarm goes off for no apparent reason

fact installed car alarm goes off everyday w/o warning. have to start car and turn off every day b4 10 o'clock or alarm goes off. makes no difference if locked or unlocked. have changed batteries in key bob. didnt help. how can i disarm alarm. permanately if need be.

1 Answer


HouseCallAuto 3/28/2010

Have the vehicle battery checked. If when parked, the battery voltage drops (because of battery condition) if the voltage drops below a preset level, maybe 10.8 volts, the alarm will go off. If your battery is 3 to 5 years old you need a battery. This could be the cause of your night alarm.


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