The GMC Sierra HD line of heavy-duty pickups was reengineered for 2011, with a new frame, new front and rear suspensions, bigger brakes, more powerful Duramax 6.6-liter turbo diesel and a luxurious new top-line Denali.
As a result, changes for 2012 are minor: The 2012 Sierra HD Work Truck now comes with cruise control and a spare tire lock as standard, vertical camper mirrors standard on 3500 Work Truck, and a new HDD navigation system with AM/FM/SiriusXM stereo with CD/DVD player, MP3 compatibility and USB port available on middle trim levels.
GMC Sierra HD heavy-duty pickups are well-suited for real-world … Full Review
The GMC Sierra HD line of heavy-duty pickups was reengineered for 2011, with a new frame, new front and rear suspensions, bigger brakes, more powerful Duramax 6.6-liter turbo diesel and a luxurious new top-line Denali.
As a result, changes for 2012 are minor: The 2012 Sierra HD Work Truck now comes with cruise control and a spare tire lock as standard, vertical camper mirrors standard on 3500 Work Truck, and a new HDD navigation system with AM/FM/SiriusXM stereo with CD/DVD player, MP3 compatibility and USB port available on middle trim levels.
GMC Sierra HD heavy-duty pickups are well-suited for real-world … Hide Full Review
