How do I stop my Vauxhall Frontera alarm from keep going off?

As soon as the warmer weather comes around my Frontera alarm keeps going off for no reason. It usually starts after the car has been stood for a couple of hours. It doesn't make any difference whether the car is locked or not. The model is a 2003 Olympic Sport.
Mark, May 2008


done
check it's not just your main battery terminals....
I had this problem...but found a good clean and application of terminal grease solved it.
the reason it happens in sunny dry weather is the conductivity is not as good as in the damp

FOZZZ, March 2015
set fire to it, it wont happen again!!!! or take the n/s inner arch out and you'll find the alarm disconnect it then smash it up and chuck in the canal!!!! IT WORKED FOR ME....

benjy.c, April 2010
I have been told this is to do with the wires to the alarm sensors on the rear side windows, as the car warms up in sunlight, things expand and the connection is broken so the alarm thinks a window has been smashed, been told I should disconnect them and just reconnect the wires directly to each other to keep the circuit closed.

dave, September 2009
hi, i have the same problem, i have discontected the in side sensor, but it still goes off, please help anybody, its doing my head in.thanks.

kennythecoasty, August 2009
Hi, have same problem with my frontera,where is the sensor in the car to disconnect it,cheers

Terry, May 2009
how do you disconnect the sensor, my olympus has just started this fiasco and is doing ones head in!!!!

Alan, July 2008
I had the same problem with my frontera,the fault is the internal sensor.The sensor sends out a signal from one side which then scans the saloon of the car and returns into the other side which is the reciever.If the reciever is faulty, when the temperature in the saloon rises it fails to work so setting off the alarm.The quickest way to prevent this is to disconnect the sensor,still leaving you with all security except in the saloon.Hope this helps.

colin cresswell, July 2008
link Click here to see other fixes for Vauxhall.