The contact owns a 2016 GMC Sierra 3500. The contact stated while driving 20 MPH, there was an abnormal rattling sound coming from the engine compartment. The vehicle lost motive power and stalled. The vehicle was towed to the residence. The vehicle was towed to an independent mechanic where it was diagnosed that the crankshaft, lower bearings, head gasket seals, and the long block needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 105,000.

- Camden, NC, USA

I own a 2016 GMC 3500 Diesel that had a serious mechanical breakdown while traveling on the freeway. The truck lost all motive power and needed to coast across 4 freeway lanes. Once towed to a local GMC Dealer, they diagnosed the problem as the Bosch CP4 fuel pump internally came apart while driving. I have to have this vehicle working so I got it repaired at a cost of $16,145. This is a known issue and losing all power while at highway speeds could have caused a serious incident. Please address this issue before someone dies.

- Queen Creek, AZ, USA

The contact owns a 2016 GMC Sierra 3500. While passing a boat ramp hauling a boat trailer, the brakes and steering failed to function. The contact was able to maneuver the vehicle and noticed that the serpentine belt became detached. The contact was able to reconnect the serpentine belt. The vehicle was taken to legacy Buick GMC (293 E howze beach rd, slidell, la 70461, (985) 231-5256) where it was awaiting diagnostic testing. The manufacturer was notified. The failure mileage and VIN were not available.

- Slidell, LA, USA