2002 LSE V8 with just under 101k miles. When using the remote to unlock the car the headlights flash once and you can hear it unlock but the alarm goes off when you open the door. Hit the remote again and the parking lights flash twice and alarm is off. Started a couple weeks ago sporadically but now 40 to 50% of the time. Remote has a brand new battery. No lights on the dash or CELs. Currently just a nuisance but am worried it will morph into something major. Any thoughts are appreciated as usual.