This truck on has 43,000 miles. I bought it new. I has never been used as a 4X4 and has been cared for. It still looks brand new. However, I have replace the evap valve twice ($500.00 each), power drivers seat needs to repaired ($500.00), growl in turning mechanism (cost ?), mirrors will not retract (cost ?), problem with the lights dimming (ext. $500.00). Engine light on again!!! I will never buy another GM product! Friend had one, same year and model, same problems.
Replaced a disaster 6.0 PSD (too many warranty invoices overloaded glove box) and went back to gasser GMC. Truck is fully fitted out and has never been in the shop for any warranty work. Averaging 19.7 mpg city/hwy and consistently get over 20 on the hwy at 75 mph (about what I expected for this heavy truck). Auto 4WD is great in the snow and wet weather, and tow/haul functions as designed. Can cruise all day at 75-80 mph on the interstate--comfortable with smooth ride. Good leg room in the back seat for adults. Reasonably quiet ride with lots of room--tight finish, no rattles or squeaks.
I got this truck in July 09. It was a replacement for a 06 Lincoln Mark LT that was nothing but trouble. I said I'd never buy another ford so I went back to the GMC dealer(previous vehicle was an 03 avalanche). got the all terrain package, sunroof, 4X4, bluetooth, rear sliding window and rain sense wipers for less than a silverado! I had a lift on the LT and lifted the Sierra. Just drove it to NC from FL and got over 13 MPG with 6" lift! doing 75-80. 6spd tranny is a little clunky at times but I noticed it a lot less with the lift and it helps with gas mileage. Lincoln could never get over 9MPG. every brand has problems but GMC beats ford any day. pulled my bud's F250 out of the mud to
When I started shopping for a new truck I made a concerted effort to be objective. I drove them all. The trucks I test drove (in this order) were the Ford F-150, Nissan Titan, Dodge Ram, Chevy Silverado, Toyota Tundra, and GMC Sierra. I returned to test drive the the Ford and the Dodge. When it was all said and done; the GMC is the truck that stood out above all others. A combination of its appearance, comfort, features, and just the way the truck felt and drove simply overshadowed the other trucks. This truck has plenty of power, great ergonomics, and I like the features. The 6sp Auto and 5.3L are a pleasure to drive and run as smooth and quiet as I expect a truck to be. Solid Truck!