There is a ping to the Seeker, a set of location coordinates, sent three times to impart insistence. He cannot speak to one not his Master, but he can try to make it clear, Target Located.
He wants to dive into the hole, and start tearing the rubble asunder, no regard for any other mech or corpse in his way, to retrieve Barricade. But he knows, he knows that he does not have the necessary training to do so without causing another collapse with his weight, and something something, maybe getting other survivors killed is poor form. He will also almost certainly end up arrested if he does this.
With an irate hiss he turns to find the lead of the rescue efforts and demand they go to these coordinates NOW, he's got confirmation that there's at least one mech still alive there.