No it does not..... I can return my truck to original backup that works just fine.... It only gives me that message when I try to install a tune ( towing, 60hp, 80hp etc)

It's says Write failed (failsafe) when I press more info it says ECM: error unlock for reflect(-1) my only option after that is continue and it tells me to unplug tuner.

Yes the truck runs.

Thanks

Predator part number---- u7186

Truck------ 2010 dually, chevy, 3500

Im receiving a "writesafe" failure message when trying to install a performance tune..... I have park brake on, key turned to the on position(truck is not running), radio off, air off, lights off...... I choose 60hp then it runs ...