It seems to also be on 'porkanbeans' tahoe. I can't believe it is a 'fluke'....if it is not intended to work this way...HOW could the turn signal possibly be tied into the starter?? I would not say it's an option, but perhaps tied into something with the GM security system. I specifically recall the dealer showing me how this worked when I bough the Tahoe. Now, if I don't want to use the left turn signal option, I can simply push the unlock botton on the remote again and start normally...
Yep...just checked it again. Unlock with remote, get in car, turn key and it starts. If I unlock door with remote, get in car and sit there for 30 seconds to 1 minute and try to start with key, nothing. At this point I have two choices - 1) Turn on left turn signal and car starts 2) take out key, hit unlock button on remote, put key back in and car starts. Seems like a nice added security feature to me...sorry to the rest of you....hahaha!!!