I have been thinking about this for months. I activate the turn signal to change lanes and usually get 3 blinks - most of the time. I guess I should be glad the Cruze has working turn signals, unlike most BMWs. Just kidding. Anyway, sometimes I want one or two blinks instead of 3. I couldn't find anything about this. It's not really a big deal unless your are OCD and accidentally find a way to do it. I wouldn't be surprised if no one at GM knows this either.
How To Section
Activate the turn signal to change lanes for the 3 blinks. After the turn signal clicks off (sound and light on dashboard), quickly tap the turn signal stalk again - like you are about to repeat the process. It will then cancel the remaining blinks. This works on my car to produce 1 or 2 blinks, in addition to the usual 3 blinks.