How do you reset the alarm system in 99 Chrysler lhs?

To reset the alarm system on a 1999 Chrysler LHS, first unlock the vehicle using the key or remote. If the alarm is sounding, you may need to insert the key in the ignition and turn it to the "On" position without starting the engine. This can often reset the alarm. If the alarm continues to be a problem, disconnecting the battery for a few minutes and then reconnecting it can help reset the system.