what does this light mean ?

405719

{"replyTo":"

638102 发表于 2019-06-23 13:23:21 Active brake disabled when. ruise control is engaged. clean the crap off your front radar.

","text":"Where is it located?","replyToPid":129049}

638102

{"replyTo":"

405719 发表于 2019-06-25 06:49:30 Where is it located?

","text":"that black box near your license plate in front.","replyToPid":130896}