It’s no surprise that a lot of people actually forget that Ironhide is part of the live action movie. This is because there have only been few leaks or public announcements as to who or what Ironhide is on the movie. Kinda sad since he played a very important role in the Generation 1 timeline, as Prime’s good friend and bodyguard.I guess the important thing is, that at least he made it to the movie. Turns out, his spot was supposed to be Arcee’s, but as to why Arcee was pulled out and to why Ironhide was the choice to replace her is still a mystery.

Very high probability that this is Ironhide in the transformers film. Sadly no shots of the front, but i did get a good look at it. It appeared to be a heavily modified Sierra 3500 GMC. The front was more altered than the back. Vents on each side of a very angular hood and large, square headlamps made up the front of the vehicle. The rear has large fender and smoke stacks. After researching the transformers movie site, this could be ironhide. He use to be a red, nissan van back in the day. Still pretty cool. The autobot logo only appeared on the tailgate and was embossed into the metal. – (source)