I see there was a recall from GM #17399 for the 2015 dual fuel tank sending unit problem. This is only for the 6.0 L gas engine. I have the duramax 6.6L engine in mine. I had the same problem with mine. The sending unit did not turn off the transfer pump and overfilled the front tank causing fuel to pour out all over the road. I caught it before the drive line caused any damage. I had it towed to the dealer and while we moved it to pull it up on the tow truck it was pushing fuel out of the filler neck of the front tank. The dealer ship refused to cover the cost saying its not part of the recall. They said it wasn't the same problem. It sure was. I have attached the repair order and the recall notification below. I am wondering if it is part of the recall and they are just not doing their job and honering it.

- South Jordan, UT, USA

I was traveling on a busy roadway at 40 mph when fuel filter warning light came on suddenly and vehicle lost all power - including the loss of power steering and power braking. Thankfully I had not yet entered the highway and was able to slow vehicle down but with great difficulty and not injure anyone around and that day was not towing a load. Vehicle would not restart. I had it towed to nearest dealership who then informed me that the "Bosch CP4 fuel pump" had exploded sending metal shrapnel throughout the entire engines fuel system. The only fix was the entire replacement of the fuel system at a cost of over $11K. I had just purchased the truck 3 months prior. Upon hearing this, I see this has been a frequent safety problem affecting a whole line of 2011 - current GM, Ford, Dodge, and Jeep diesel vehicles equipped with the CP4 pumps. There are numerous lawsuits underway for this failure including one of a major accident while towing (what these trucks are made for) because of loss of power steering and braking upon engine stall after fuel pump explosion. The GM technical service bulletin for reference is #16-na-102. In addition, the NHTSA has received two manufacturer technical service bulletins on this very safety issue. This is very much a recall worthy safety issue. Losing engine power and loss to all power steering and power braking in these vehicles is beyond dangerous. In addition, when it is happening to vehicles designed to tow weights in excess of 30K pounds trailer load behind the affected vehicle the danger is amplified that much greater. Please issue a recall immediately. People's lives are very much at stake for GM's failure to remedy a known safety issue. GM lists it as only a "hard start or no start". they do not recognize in writing the danger of full power loss at highway speeds which is most often how it presents itself.

- Duncanville, TX, USA