Great truck, has served well in snowy to over 100 temps. Have hauled trailers and 10000 pounds of hay with no problems, using t/h switch is very good as it lowers tranny temp. 53 k miles with 0 problems. avergage mileage is 13.2. Not bad for a 9600 GVW rating with 410 axle. Hauls 3000 pounds of block in bed with no problems.
Like the thermometer, heated seats, and comforts. Towing switch
Put more aggresive tires from factory. Tires it came with were more for highway, put and open shoulder tire to clean out mud and snow better. Other than that been a great truck.
I have been driving this truck for almost 2 years, so I know all of its little nuances. Unfortunately, I am not impressed. I have had many GM vehicles and this has been one of the worst. Warranty issues include: new radiator, new brake rotors, power seat motor, tranny problems, etc. I can only attribute this stuff to the fact that GM is rabidly seeking the cheapest suppliers on the globe, which has to hurt quality. I must admit that I use my truck heavily, but what good is a pickup truck that can't handle a little beating? Considering the msrp on this thing was around $39000, GMC must do better with its 2007 model. If not, Tundra and Titan will have Sierra for lunch!
Good suspension and 4wd
Overall build and materials quality is not up to industry standards.
Very comfortable truck. I'm a sales manager and I drive over 45k miles a year. Seats are great, good gas mileage for a fullsize V 8 truck. I recently made a trip from Atlanta to Houston pulling a small trailer with a 4 wheeler in it, did not meet my expectations for pulling, keeps downshifting.