Floodlight Cam question

So tonight is the first night I drove home at dark with the newly installed floodlight cam. When I pulled into the driveway I got the notification that there was motion however my lights did not turn on. Well after I exited the vehicle and the lights on the vehicle turned off my floodlights turned on. Is it possible my car’s headlights are making the camera think it’s daylight? Is there a sensitivity setting I can adjust to correct this?