The 2020 GMC lineup receives a number of new tech updates. 
Both Sierra and Sierra HD models now have 10-speed transmissions.
The AT4, an aggressive 4×4 trim, is available on more GMC models for 2020.   

Listen up all you working Joes and Josephines! The details, changes, and new features for the 2020 GMC lineup have been announced. So, if you work with your hands for a living, have to haul a lot of people and/or things, but want a little extra luxury while doing so, you might want to consider what GMC is up to for 2020.
For starters, GMC has re-done the entire line with a styling update while adding new safety and tech features. The first-ever AT4 Acadia is on offer, a more aggressive off-road version of the already popular SUV. The Acadia now joins the Sierra 1500 and Sierra HD as the newest member of the AT4 sub-brand. Terrain
We’ll start with a look at the 2020 Terrain. The smaller SUV is updated for 2020 with GMC Pro Safety, now standard across all trim levels. The expanded safety package includes Automatic Emergency Braking; Forward Collision Alert; Lane Keep Assistance with Lane Departure Warning; Following Distance Indicator; Front Pedestrian Braking; and IntelliBeam Headlamps.
There is a bunch of optional safety stuff, like the Driver Alert Package for example. That includes Adaptive Cruise Control; Lane Change Alert; Side Blind Zone Alert; Rear Cross Traffic Alert; Rear Park Assist and Safety Alert Seat.
Terrain Denali & Elevation Edition
For...