Electrical Gremlin.

[Amussis]

Hi,  I have an electrical problem with my 2008 ( 5th gen ) 3.8 petrol GV ( 60,000 miles ).  It has happened a couple of times now.  Whilst driving, there is a "bong" from the OBC, loads of lights flash on the dashboard, speedo cycles down and up, then everything goes back to normal.  The engine doesn't falter, but it's starting to cause concern.  Any ideas ? 

[Amussis]

I guess no-one has had a similar problem.  But it's getting worse.  As well as the previously mentioned occurrences, the wipers started to cycle once during the "episode".  There are no fault codes ( garage cannot find the problem source ) so I tried a simple "re-boot" by disconnecting the battery, waiting 30 minutes and re-connecting.  It did not cure the problem.  But more issues have arisen.  Now, the alarm keeps going off for no apparent reason, and the DAB radio ( plugged into the AUX on the radio ) has stopped working - although the radio / satnav / CD all work fine.  If it's a processor, I would have thought that a code would show.  Anyway, it's driving me nuts.

[Gareth]

Am having exactly the same problem with alarm going off, instruments recycling etc. and hazards flashing occasionally. If you have got anywhere with this I'd really appreciate your input. Thanks, Gareth

[SpAwNtoHell]

Before a Admin jumps on my back, i know i am a year late but  this applys also to uk models as in this video... just in case anyone else gets this gremlin.