|Body and chassis|
|Class||Full-size pickup truck/SUV|
|Body style(s)||4-door SUV
4-door extended SUV
2-door pickup truck
4-door pickup truck
|Engine(s)||4.8 L Vortec 4800 V8
5.3 L Vortec 5300 V8
6.0 L Vortec 6000 V8
6.2 L Vortec 6200 V8
|Transmission(s)||4-speed 4L65-E automatic
6-speed 6L80 automatic
|Wheelbase||116.0 in (2946 mm)|
The GMT900 truck platform debuted at the 2006 North American International Auto Show, as basis for the next generation of General Motors full-size pickups and SUVs, and replacements for the GMT800 vehicles. The first GMT900 vehicle introduced was the next-generation Chevrolet Tahoe.
GMT900 had been called a "Hail Mary pass" for the General Motors Corporation — the company needed the revenue from these large trucks to ensure their financial solvency. The company's resources were focused exclusively on GMT900 development through 2005, delaying other programs like the GM Zeta platform. With the 2005 spike in gasoline prices, some analysts have questioned the wisdom of "betting the company" on a line of large trucks. Sales were initially brisk, but later dropped off as the market moved to more fuel-efficient unibody vehicles.
Short wheelbase (Yukon/Tahoe) GMT900 production began at GM's Arlington Assembly plant in Arlington, Texas on December 1, 2005, six weeks ahead of schedule. Production of the SWB versions began at Janesville Assembly in Janesville, Wisconsin in early 2006. Production of long wheelbase trucks (Suburban/Yukon XL) begins in Janesville and at Silao Assembly in Silao, Guanajuato, in March. The Avalanche will be produced only in Silao, while the Escalade will be based in Arlington.
The SUVs began to show up at dealers in January 2006. Sales initially exceeded expectations, but by 2008, General Motors announced they were significantly cutting back production. GM has closed the SUV plant in Janesville, Wisconsin, consolidating SUV production in Arlington, Texas.
Due to a long-lasting downturn in sales of full-size trucks and SUVs in the United States (up to a 30% down through the first nine months of 2008), General Motors cancelled the next-generation CXX truck program in May 2008. Along with it, the replacements for the Chevrolet Tahoe and Suburban and their siblings at GMC and Cadillac.
On January 14, 2010, General Motors announced that they will resume development of full-size trucks and SUVs.
|GMT900||2007-2013||Chevrolet Silverado||Regular Cab
|GMT901||August 2, 2006 at The Texas State Fair||Silao
Oshawa August–September 2006
|GMC Sierra||Regular Cab
|?-2009||Hummer H2||Crew cab pickup||GMT913|
|GMT920||2007-2014||Chevrolet Tahoe||4-door SUV||GMT921||NAIAS January 2006||Arlington December 1, 2005
Janesville early 2006
|Cadillac Escalade||GMT926||Arlington January 1, 2006|
|GMT930||Chevrolet Suburban||4-door extended SUV||GMT931||GLAAS January 2006||Janesville March 2006
Silao March 2006
|GMC Yukon XL||GMT932|
|Cadillac Escalade ESV||GMT936||Arlington March 2006||May 2006|
|GMT940||2007-2013||Chevrolet Avalanche||4-door pickup/SUV||GMT941||CAS February 2006||Silao|
|Cadillac Escalade EXT||GMT946||Arlington March 2006||May 2006|
- "General Motors Death Watch 69: Running Out of Gas". The Truth About Cars. April 27, 2006. Retrieved 2009-06-01.
- Vlasic, Bill; Bunkley, Nick (October 25, 2008). "General Motors, Driven to the Brink". New York Times. Retrieved 2009-06-01.
- "Cadillac Escalade to go Lambda". Left Lane News. September 9, 2008. Retrieved 2009-06-01.
- "Crucial GM Full-size Truck Program Launches Early". Ward's AutoWorld. Retrieved December 9, 2005.[dead link]
- "New Trucks Won't Save GM". Ward's AutoWorld. Archived from the original on February 8, 2006. Retrieved March 8, 2006.
- "Tahoe's Heady Mission". Ward's AutoWorld. Retrieved March 8, 2006.
- "Escalade ESV, EXT Due in May". Ward's AutoWorld. Retrieved March 8, 2006.
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