Try disconnecting and re-connecting the battery cable.
On my 99 Suburban, the alarm activates when you press the lock button on the remote twice.
make sure ALL the doors are closed
You should just be able to "unplug" the annoying alarm similar to a turn signal flasher usually located either in or by the fuse block under dash on driver's side.
To disable the seat belt alarm on a Chevy Colorado, locate the alarm fuse. Pull out the fuse to disable the alarm.
The easiest way to disable the 1998 Chevy Lumina factory alarm is to remove the factory alarm fuse. The factory alarm fuse can be found in the fuse box.
Go to seat belt alarm stop.com
It may be a low battery on your remote or even your vehicle. Well at least the some of the reasons.
take it to a Chevy place
The best reviewed alarm clock in the 2013 market is the HoMedics SoundSpa Premier which is only $34.97. Another alarm would be the Sony Nature Sounds which is $54.26.
It means it works Security alarm
How to arm car alarm mitsubishi adventure gls sports