no he doen'T no transformer could detect another transformer! wheelie detects jetfire cause he knows which vehucle he is starscream was detected as a tranformers by ironhide cause he was alone (f22 does manouvers only in a aquadron!) and he was much to low bee hits and disgusted alice cause he wanted to beware sam to be unfaithful
But Ironhide smells demolisher in China. They can sense each others signals according to Ratchet in part 1 and Starscream pt 2
bumblebee shoulda kept her in the car, and let sam get out. THEN TRANSFORM AND CRUSH HER ON TEH INSIDE!!!...imo. -rikkuluverx2
No, Bee did not know she was a Con. He thought she was a slut. One that was trying to get Sam to cheat on Mikaela, and not getting the 'beat it' hint from Sam in a time when he needed to get Sam to Prime asap. A facesmack & questionable liquid spraying later and she's on her way back to college on foot. Given BB shot Sam's parent's place to shit over a few Kitchen-cons, letting a Decepticon Pretender leave with a bruise and face full of gunk only to ambush & maybe kill Sam later seems very unlikely.
Bob Orci said, on this very forum, that they envisioned the Transformers either can't or have trouble detecting eachother in Alt mode (forgot the exact verbage, and don't feel like looking it up).
That could make plenty of sense. Multiple continuities have shown Decepticons attacking regular vehicles thinking them Autobots, Beast Wars used those seemingly-advanced-Pretender-shell-alt-modes to shield them from raw Energon, and in Beast Machines the beast mode could cloak Maximals from instrumental detection of the Vehicons.
quit trying to make sense out of this horribly translated to screen film. You will be a happier human being.
Remember Beast Machines? How the vehicons couldn't detect the maximals when they were in beast mode? Kind of like that.