headlight remote entry

[2000 trans am]

this just started when I lock or unlock my door the headlight pop up & go back down must be a short or bad ground
any ideas
thanks

[Blue Bowtie]

Is this an aftermarket remote entry/alarm system? If so, many of those have an option to flash the headlights and/or chirp the alarm to acknowledge the unlock command. If it is set up to do so that is why you lamp doors are opening/closing.

If this just started happening with the alarm system it is possible the programming or setup has changed to this mode due to a low battery, voltage transient, nearby lightning, or other cause of interference, or due to a poor power connection to the alarm unit.

[2000 trans am]

original remote even does it if I lock the door on the arm rest

[Blue Bowtie]

Check the owner's manual for alarm setup. Some of that was done through the factory radio, and it may have been scrambled or reset to default.