2009 Cadillac STS-V .. Manual says I have an automatic 3 flash signal - but it wont work for me? Details ->?

What I'm talking about is when you tap the signal lever, the signal is supposed to signal 3 times on it's own. In the manual, it says I have that feature (Look at the link below), but when I tap my signal lever, it stops flashing once I let go, as opposed to blinking 3 times automatically. Anyone have any... show more What I'm talking about is when you tap the signal lever, the signal is supposed to signal 3 times on it's own. In the manual, it says I have that feature (Look at the link below), but when I tap my signal lever, it stops flashing once I let go, as opposed to blinking 3 times automatically. Anyone have any clue? -- I've searched many forums but no one has a solution.

Link - http://tinypic.com/r/35avtok/6
Update: Humvee - In my physical paper manual it looks exactly the same way as it does in the link above. That's what has me confused.
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