Recent content by GMCMAX

On many GM Duramax trucks, the DEF level PID is inverted, and some scan apps (including Car Scanner Pro) show it backwards. GM often reports DEF as “DEF % empty” (or “used”) instead of “DEF % remaining.” So: 0% = tank is FULL 100% = tank is EMPTY I didn't want to rewrite a custom PID for the...

First, I want to say that I believe the Banks iDash is a great product and works very well for many people. That said, there are a few downsides worth noting. The iDash requires modifying the vehicle’s interior appearance, and the display size can be difficult for some users to see clearly...

I have put together a reminder for the iPhone to turn off the Auto Stop/Start feature. Most of us find it annoying when you come to your first stop and the truck turns off! It is an alternative to having to buy and replacing the wiring harness in the back of the switch. Not a fix but it works if...