Craigj Posted December 27, 2022 Share Posted December 27, 2022 Hi my car alarm has started to go off randomly would this be the battery being the issue I measured the voltage it was 12.3v Quote Link to comment Share on other sites More sharing options...
Vauxhall Owners Club Posted December 28, 2022 Share Posted December 28, 2022 It could still be the battery supply which could dip and then the battery recovers by the time you have measured the voltage (e.g. warmer air temperature) so I would run a deep discharge test (measure the volts with the engine off and the lights on - should be around 10.8v to 11.5v minimum). Otherwise, could be water ingress in the electrics so if there are any leaks internally I would start there Quote Link to comment Share on other sites More sharing options...
Craigj Posted December 29, 2022 Author Share Posted December 29, 2022 Hi I tried the above it was 11.8v thankyou for you input ,Alarm seems to go off more after its been driven ,I checked the battery volts they read 12.2v .also on the last two times the alarm went off the only way to turn it off was to put key in the ignition and turn the key . Quote Link to comment Share on other sites More sharing options...
Vauxhall Owners Club Posted December 31, 2022 Share Posted December 31, 2022 More than likely water ingress with the weather we've been having Is the interior steamed up and lots of condensation? Quote Link to comment Share on other sites More sharing options...
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