NHTSA Complaint #10421101 — 2011 GMC TERRAIN

I HAVE A 2.5 MONTH OLD 2011 GMC TERRAIN. AT 4984 MILES IT IS IN THE SHOP FOR STALLING, FOR A HORRIBLE RATTLE UPON START UP, AND FOR IT JERKING BETWEEN FIRST AND SECOND GEAR. WHEN I TOOK IT IN THIS MORNING IT HAD STALLED SIX TIMES WITHIN THE PAST 2 DAYS. IT STALLS AFTER START-UP IN FORWARD AND REVERSE AND IT STALLED THREE TIMES WHILE IN IDLE IN A FAST FOOD DRIVE-THRU. THERE IS ALSO THE RATTLING WHICH HAPPENS ON COLD AND WARM STARTS, WHETHER THE A/C OR ECO MODE ARE ON. IT SOUNDS LIKE METAL RATTLING AND LIKE IT IS HARMING THE ENGINE. THE LEAST OF MY WORRIES, IS THE FACT THAT BETWEEN 25-35 MILES AN HOUR THE TRANSMISSION SHIFTS VERY HARD AND KICKS MYSELF AND PASSENGERS FORWARD. APPARENTLY THERE IS A TECH BULLETIN THAT HAS BEEN OUT FOR THE RATTLE FOR SEVERAL MONTHS. WHY NOT FIX THEM BEFORE THEY SELL THEM? ALSO, THERE IS A RECALL #11195 FOR "ROUGH IDLE, POOR DRIVEABILITY" THAT DOESN'T SHOW UP ON THE NHTSA SITE OR ANYWHERE ELSE BUT THE GMC DEALER'S COMPUTER. ADDITIONALLY, DESPITE THE CLAIMS, I HAVE NEVER GOTTEN BETTER THAN 21 MPG WHILE DRIVING THIS CAR INCLUDING AN ALL HIGHWAY TRIP FROM MICHIGAN TO INDIANA. I THINK IT IS FALSE ADVERTISING AND THE FUEL ECONOMY IN ECO OR NOT IS NOT WHAT THEY CLAIM WHEN THE Y SOLD THE VEHICLE TO ME. *TR