The Intelligent Detroit™ DT12™

Transmissions 06/28/2017

Technology is permeating the trucking industry faster than ever, and it’s bringing a host of benefits with it. The combination of computational analysis and control, instant vehicle performance data and more exact manufacturing methods are enhancing durability and fuel economy.

With the Detroit DT12 automated manual transmission, all of these technologies are used to create one of the most intelligent transmissions available on the market. Using features like the ones listed below, Detroit combines this intelligence with manufacturing excellence to offer industry-leading performance.

True Powertrain Integration

When you get the DT12 as part of the Integrated Detroit Powertrain (IDP), you combine components that are designed to work together. Using a Common Powertrain Controller, the IDP communicates seamlessly between the Motor Control Module on the engine and the Transmission Control Module on the DT12. This offers a level of efficiency and integration that is only available with the IDP.

Intelligent Powertrain Management

Intelligent Powertrain Management (IPM) is a predictive cruise control technology that is designed for efficiency on hilly or mountainous roads. By accessing pre-loaded terrain maps and the truck’s GPS, IPM looks over 1.2 miles ahead to determine the best gears, acceleration pattern, engine braking schedule and coasting times to achieve optimum fuel efficiency in any terrain.

Skip Shifting

The faster your truck gets to its RPM ‘sweet spot,’ the better fuel your fuel economy will be. In order to get there as fast as possible, the DT12 analyzes load, grade and more to select the best starting gear for your truck.


Analyzing the truck’s momentum and grade, eCoast engages when your truck will keep its determined speed without the help of the engine. This mix of idling and coasting increases fuel economy in the short term and maintenance savings (through less wear-and-tear) in the long term.

Creep Mode

To increase maneuverability in low-speed areas, Creep Mode is available on the DT12. It can be activated in forward or reverse, assisting in smooth operation in close quarters that can sometimes be difficult to maneuver, such as docks and parking lots.

Hill Start Aid

When your truck is on a grade of 3% or more, Hill Start Aid is activated. This keeps your truck from rolling back until takeoff without needing to apply the brake.

Auto Neutral

Auto Neutral will engage when certain conditions apply, e.g. parking brake is engaged or vehicle shut-down. When one of these conditions is recognized, the transmission electronics command "Neutral" gear.


With these features, the DT12 blends quality manufacturing with technological innovation to deliver unmatched durability and efficiency. If you demand the best, Demand the Detroit DT12.

Detroit Connect Portal

The Detroit™ Connect portal is easy-to-use, one-stop-shop for all vehicle performance data gathered, transmitted and analyzed by Detroit Connect.  The portal gives you access to insights delivered by  Detroit Connect Virtual Technician℠. The Detroit Connect portal will also give you access to new features, such as Remote Updates, and Analytics, available late 2017.

Detroit connect portal login


All DDCSN content has been migrated to our DTNAConnect web portal. All information previously on the DDCSN is now on DTNAConnect. We have created a quick reference guide to help you locate the migrated content on DTNAConnect. Existing DDCSN login credentials will also work with DTNAConnect. Please work with your security administrators for login or content issues. If you do encounter any technical issues, please contact the Software Support Center at 855-639-8680 or


DTNA Connect Portal

DTNA Connect is the starting point for working with all brands and franchises that fall under the Daimler Truck North America umbrella: Detroit, Thomas Built Buses, SelecTrucks, Sterling, Freightliner, and Western Star. Here, you can access the full spectrum of online applications, resources and tools you need. Whether you use DTNA online resources to complete repairs, purchase parts, submit warranty claims, spec new vehicles or track the status of your truck orders, DTNAConnect streamlines the tasks and activities that are part of your daily work routine.

DTNA Connect Portal Login