He doesn't seem put off, at least. If they are another of his kind, it seems worth at least trying to talk to them.

"I would not be surprised if the indigenous lifeforms of this planet were dubious of our intent, given Cybertron's historical penchant for conquest." He sounds faintly disapproving of that, falling silent for a moment, contemplative. "It would be in my best interest to contact them - I have reason to believe there are significant gaps in my memory."