The phrase "obstruction warning" means getting alerted or notified about something that is blocking or getting in the way of something else. Full definition
In addition, advanced active - safety features, such as Forward Obstruction Warning System, Lane Departure Warning System, and High Beam Control System, help drivers recognize and avoid danger. (www2.mazda.com)
We were even more impressed by the range of active - safety features with which this car can be equipped, including blind - spot monitoring, forward obstruction warning with city - speed brake intervention, lane - departure warning, radar - operated cruise control, and even automatic high - beam control. (automobilemag.com)
Grand touring tech pkg navigation moonroof leather heated seats adaptive cruise front obstruction warning lane departure warning bose satellite radio bluetooth rearview camera steering wheel audio controls keyless ignition auto headlamps fog lamps tire pressure monitoring 19 alloys tinted glass rear spoiler! (usedcarsgroup.com)