What does the mode button do on an Allison automatic?
What does the mode button do on an Allison automatic? Every time you start the motorhome, the transmission is in Performance Mode. This is the default setting. If you push the mode button, it goes to Economy Mode and the light illuminates. What do you need to know about Allison transmissions? This series had no diagnostic software or computer, but you could retrieve codes from the shift selector. Allison is the world’s largest manufacturer of fully automatic transmissions and hybrid propulsion systems for commercial-grade vehicles. These transmissions can be found at work in a wide variety of applications, from mining...