In Transformers: Age of Extinction, when
Optimus Prime enters the ship, and uses the sword to free Grimlock,
he says something to him in another language. There's a clip on YouTube (spoilers).
I noticed that a similar language is used when
Lockdown commands his wolf transformers to hunt down the ship’s intruder.
Was this language previously used in the Transformers universe, apart from the Michael Bay films?