Ander

Had it towed in to the shop (hooray for OnStar), and they told me that it was an Ignition Control Relay which had to be ordered in from Montreal. In the meantime my truck was left in the lot in -20 and below, and it started right up for them. They got it in the shop and replaced the ICR. They kept it for another day and left it outside so they could test it with a cold start to determine if they needed to replace the starter/battery. Truck started right up. We're now 3 days into having a new truck with no issues. I'll report back if it happens again or if there are any further issues. In short, get them to replace the Ignition Control Relay.

Experiencing the exact same issues with my new 2014 Sierra. Only picked it up yesterday. Not impressed. OnStar Remotelink works to unlock/lock, but when I tried to start it this morning I got an error. Tried with both key fobs, and it did not start. Finally I went outside to try to start it with the key and experienced the 'click, click' issue. Dash was all lit up. I tried a few more times, got out, swore profusely, then remembered that the salesperson said something about key cycles. I figured maybe while I was messing with the remotelink I overdid it and had to lock/unlock a few times or something. That didn't work either. I finally got it to attempt a turnover and got a 'Low Battery' warning on the display. So now it's plugged in. The temp here is -22C today. I never plugged in my old vehicle (the one I traded in for this one) and didn't have any issues. Needless to say I'm not impressed so far, which is a shame considering the sales staff and everything up to this point has been top notch. The internet tells me that it might be a frozen exhaust vent, or it might be a greasy selenoid. When it finally starts again, I'll be taking it directly to the dealership, because this is unacceptable.