GMT K2XX


GMT K2XX is an assembly code for a vehicle platform architecture developed by General Motors for its line of full-size trucks and large SUVs that started production with the 2014 model year. The "XX" is a place holder for the last two digits of the specific assembly code for each model. The platform, which replaced the GMT900 series that had been in production from 2007 to 2013, was introduced in April 2013 for the 2014 Model Year on the trucks, followed by the December 2013 production on the 2015 large SUVs that debuted in February 2014. The GMT K2XX products are being produced at four GM assembly plants: Arlington, Flint, and Fort Wayne in the United States, along with Silao Assembly in Mexico for the crew cab light duty pickups.
The first GMT K2XX vehicles produced were the light-duty 2014 model year Chevrolet Silverado and GMC Sierra full-size pickups, with Silao producing the crew cabs first, followed afterwards by Fort Wayne assembling the light and HD regular size and double cab versions. The 2015 Chevrolet Tahoe, Chevrolet Suburban, GMC Yukon, GMC Yukon XL, Cadillac Escalade, and Cadillac Escalade ESV full-size SUVs were the next vehicles to start production, followed by the 2015 Chevrolet Silverado HD and GMC Sierra HD.
The K2XX platform marks the first time that no Sport Utility Trucks, hybrid trucks and hybrid SUVs will be built on this platform, as the Chevrolet Avalanche and Cadillac Escalade EXT SUTs, and the hybrid versions of the Silverado, Sierra, and full-size SUVs were discontinued after the 2013 model year. However, fuel economy of GMT K2XX vehicles will still increase over the GMT 900 predecessors thanks to usage of new Generation V/EcoTec3 V8 engines with direct injection and weight savings from the use of more high-strength steel. Turbocharged and diesel engines for light-duty models are also under consideration for future GMT K2XX trucks and SUVs.
There have been customer complaints relative to driveline vibrations in the K2XX platform dubbed the "Chevy Shake".
The K2XX was replaced by the GMT T1XX beginning in the 2019 model year.

Applications

Basic platformYearsModelNotesCodeIntroductionProductionSale
GMTK2XX2014-2019Chevrolet SilveradoRegular Cab
Double Cab
Crew Cab		GMTK2RC
GMTK2EC
GMTK2CC		September 26, 2013 at The Texas State FairSilao
Fort Wayne
Flint		Fall 2013
GMTK2XX2014-2019GMC SierraRegular Cab
Double Cab
Crew Cab		GMTK2RG
GMTK2EG
GMTK2CG		September 26, 2013 at The Texas State FairSilao
Fort Wayne
Flint		Fall 2013
GMTK2XX2015-2020Chevrolet Silverado HDRegular Cab
Double Cab
Crew Cab		GMTK2HCSeptember 26, 2013 at The Texas State FairSilao
Fort Wayne
Flint		January 2014
GMTK2XX2015-2020GMC Sierra HDRegular Cab
Double Cab
Crew Cab		GMTK2HGSeptember 26, 2013 at The Texas State FairSilao
Fort Wayne
Flint		January 2014
GMTK2XX2015-2020Chevrolet Tahoe4-door SUVGMTK2UCSeptember 12, 2013Arlington December 1, 2013February 2014
GMTK2XX2015-2020GMC Yukon4-door SUVGMTK2UGSeptember 12, 2013Arlington December 1, 2013February 2014
GMTK2XX2015-2020Cadillac Escalade4-door SUVGMTK2XLOctober 7, 2013Arlington December 1, 2013April 2014
GMTK2XX2015-2020Chevrolet Suburban4-door extended SUVGMTK2YCSeptember 12, 2013Arlington December 1, 2013February 2014
GMTK2XX2015-2020GMC Yukon XL4-door extended SUVGMTK2YGSeptember 12, 2013Arlington December 1, 2013February 2014
GMTK2XX2015-2020Cadillac Escalade ESV4-door extended SUVGMTK2XLOctober 7, 2013Arlington December 1, 2013April 2014