****y vauxhall alarm! grrrrr

[Dirtydog1]

my folks have got a 2001 astra, and alarm keeps going off for no apparent reason! it seems to have two tones of alarm, one sounds like the horn, and the other is a piddly girly alarm noise! its driving us mental, anyone know if they have any common faults?

[napalm_27]

crap battery maybe

[brainsnova]

first thoughts is bonnet switch.

[napalm_27]

or boot switch

[Dirtydog1]

car starts up fine, and it locks and unlocks fine with the key/fob thingy.
i guess a corroded boot switch or bonnet switch could be triggering it?

[mowgli]

remove it, an 8 year old astra is not exactly on nicolas cages gone in 60 seconds list, & everyone just thinks 'oh a car alarm is going off, now pass the remote, I'll put the volume up'

[Southie]

Someone trying to steal it

Battery, dodgy earth or is there a sensor near one of the windows that could get a draft if it's a bad seal?

[Dirtydog1]

, its my folks car not mine, and to be honest they'd preferit to get stolen!
il check the switches etc in the morning, if the hammer hasnt seen to it 1st!