NHTSA Complaint #10949976 — 2012 GMC SIERRA 3500

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	10949976
Vehicle	2012 GMC SIERRA 3500
Component	POWER TRAIN
Date of Incident	February 7, 2017
Date Filed	February 7, 2017
Mileage	150 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NY

Consumer Description

THE VEHICLE WILL NOT SHIFT PROPERLY WHEN TOWING A TRAILER. WHILE GOING UP A HILL, THE TRANSMISSION WILL NOT DOWNSHIFT PROPERLY. WHILE GOING DOWNHILL, THE VEHICLE DOWNSHIFTS TO 2ND GEAR WHILE GOING 60 MPH. I HAVE CONTACTED GM SEVERAL TIMES (THEY HAVE IT ON FILE) THAT THERE IS A PROBLEM WITH THE TRANSMISSION. THEY UNDERSTAND BUT SAID THAT THEY CANNOT DO ANYTHING ABOUT IT. THIS HAS BEEN HAPPENING SINCE IT WAS BRAND NEW. OVER AND OVER AGAIN.

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