[tntfaguy]

Check your coolant level. Also, there is an ECU reflash to address cooling fan issues.

Excellent, thanks for the info, I'm having this same issue as well. Fan comes on full blast and shuts off after a couple seconds. Mostly does it with the a/c on, but it's not correct. Never stays on long enough to do anything. I would think it would come on and maintain a steady rpm for a longer period of time like my silverado and my wife's traverse. I'll have them do this when I take it in for the steering reflash.