Help! Can't stop my headlights flashing!

[ash2020]

Please someone help! I disconnected the battery this afternoon to change my seats. Now I've reconnected it and the headlights are flashing permanently. I know there's some sequence you have to do like deadlocking it , then turning the ignition with one of the dash switches pressed, patting your head then turning round three times, but I just can't remember what it is. The battery will be flat by morning if I don't sort it.
Thanks
Andrew

[Dieselman]

iirc. You put the key in the ignition and turn to Ign, then press the alarm button.

[ash2020]

I thought it was something like that but it doesn't work.

[Dieselman]

Have you tried the under bonnet key switch?

[ash2020]

No, but I will. That might be it. Otherwise I'll just drive everywhere with the headlights on, like a Volvo, and then disconnect the battery when I stop!
Cheers

[xmexclusive]

Start the engine before holding down the alarm switch for a peiod of time.
You may need to switch off then repeat the process.
Underbonnet switch just switches the siren on and off so you may regret trying that.

John

[minijet]

.
The alarm/security device on these cars often goes a bit crazy after the battery has been reconnected.
The under bonnet key switch and the dash board switch have never been of any use in my experience.
I usually find that disconnecting the alarm control unit in the passenger footwell stops the immediate problem. Then I reconnect it after a day or two after everything has settled down.
I think XM's don't like a change in their routine, and get into a bit of a petulant strop if you do something different .

But, my white SX has been sounding it's alarm siren a lot recently, particularly after start up in the mornings (even though I have disconnected the box in the passenger footwell ).
But it hasn't done it for a couple of days (fingers crossed it stays that way, or the front bumper comes off and the siren feels the full weight of my lump hammer ).

Paul

.

[robertmnorton]

Hi Andrew,on mine after reconnecting the battery i simply set the lock and alarm on the plip and then unlock on the plip.That resequences the alarm.The lights will stop flashing in any event in 20 mins.
robertm

[ash2020]

Thanks all. Lots to try in the morning. I've disconnected the battery again overnight.
Andrew

[Dieselman]

.
But, my white SX has been sounding it's alarm siren a lot recently, particularly after start up in the mornings .

I was wondering what happened with that car.

Good to hear it's back in action.