Normally you never see a message about Regen, I assure you it must have done passive Regen to get to 10 k miles. What it sounds like is you got caught in the pre-regen glitch. It has been noted on this forum that if the pre-regen is interrupted you get the full DPF and reduced power at next start up, as you describe. This requires a dealer initiated manual regeneration, but should absolutely be covered under warranty. Some have installed a device called Scan Gauge 2 that has been set up for the Diesel Cruze and it will warn of when the car is approaching Regen or when it's in progress, no installed gauge by GM clearly indicates this, but a drop in MPG is an indicator, also, if you have the engine cooling fan on when you shut off the car, chances are you were in Regen when the car was shut off. Apparently GM and other OEMs think owners are not interested or too incompetent to handle information on Regen, in other markets there is a dash warning light to indicate when it's doing a regen.
I use Ultragage, but it doesn't directly monitor regen, but manifold pressure and exhaust gas temperature gives it away so I can know from that.
Agree with the previous post, get to a different dealer and tell GM customer assistance about your situation. That dealer seems to be setting you up for a rip off.
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