IMPORTANT New UI Bulletins

Improper Engine Block Heater (Option K05) Usage - Continuous Power

UI Bulletin #117 has just been posted to the Technical Bulletin page... This bulletin provides important usage information of the Engine Coolant Heater on diesel engines.  Please take a moment to review this very important informational update.

Upfitter Configurable Auxiliary Circuits

UI Bulletin #118 has just been posted to the Technical Bulletin page... This bulletin provides important usage information 5W4/9C1 upfitter provisioned circuits