Mechanical Menace DLC, Automatron Quest
This quest will start automatically when you enter the game with Automatron DLC active. You need to be at least level 15 to receive this quest.
Related points of interest
Stages of "Mechanical Menace" quest
1. Listen to the Caravan Distress Call
My Pip-Boy is picking up a distress call signal. I should listen to it to see what it says.
2. Find the Caravan
The distress signal told me the caravan was just east of Wattz Consumer Electronics. If I want to help them, I need to get there fast.
3. Eliminate the Hostile Robots
When I arrived at the caravan site, the travelers were already dead. I saw a robot being attacked by several other robots that I've never seen before. If I help this lone robot, perhaps I can learn more about what's going on.
4. Speak to the Robot
Now that I've rescued the robot, I should speak to it and find out what's going on.
From now Ada can be your companion.
5. Quest completed
Next / new quest is A New Threat (DLC, Automatron).