Probable High Pressure Fuel Pump (CP4) failure resulting in the vehicle stalling without warning. This event has not yet occurred, however due to the high number of vehicles involved in the Stellantis recall which are using the same CP4 pumps which are known to fail, I am scared to drive my truck as the CP4 pump may fail at any time. I have spoken to MANY other GM truck owners who have experienced this failure and it has cost them tens of thousands of dollars. Please open a recall for the CP4 High Pressure Fuel Pump for 2011-2016 GM trucks using this HPFP. Thank you,

- New Lothrop, MI, USA

Rear passenger side, brakes, locking up keeping the truck from rolling. Replaced the brake fluid line and also both calipers. The brakes are still locking up.

- Franklin , TN, USA

The contact owns a 2016 Chevrolet Silverado 3500. While driving 65 mph, the reduced engine power mode warning indicator illuminated. The vehicle was taken to medved Chevrolet Buick GMC (located at 1506 S wilcox St, castle rock, co 80104, (303) 688-3137) where it was diagnosed that the indirect fuel injector filter and a fractured particulate filter needed to be replaced. The contact stated that the vehicle was repaired, but the failure recurred. The manufacturer was notified of the failure and provided case number: 8-467007708. The approximate failure mileage was 50,486.

- Elbert, CO, USA

The contact owns a 2016 Chevrolet Silverado 3500. While driving 40-45 mph, the reduced engine speed warning indicator illuminated and the vehicle stalled. The contact was unable to restart the vehicle. The vehicle was towed to herb easley motors (1125 central E fwy, wichita falls, tx 76306, (940) 723-6631) where it was diagnosed that the failure was due to contamination of metal shavings in the fuel pump and fuel rails. In addition, the fan clutch failed and needed to be replaced, including the entire fuel system. The vehicle was repaired, but the failure recurred several months later. The vehicle was taken back to the dealer where it was diagnosed that the fuel system needed to be replaced again. The vehicle was not repaired due to cost. The manufacturer was notified of the failures and case number: 8-4064184145 was opened. The approximate failure mileage was 38,000.

- Plainview, TX, USA

We have had repeated instances, where engine light comes on, and fuel guage flat lines. If you can not get to a qualified dealer soon enough, vehicle shuts down without warning[actually it remains running until it almost comes to a complete stop]. we have had to instances of shut down, and at least 6 instances altogether of engine light/ fuel guage flat line. This has all happened since vehicle was put in service in January / 2016. We use this vehicle to travel across the lower 48, and parts of Canada, to pick up breeding bulls, that have values ranging as high as 1 million or more. These animals have all been tested for Transport back to our facilities in plain city, oh, and once on the trailer, are not to be removed, unless it is an absolute emergency, because of regulations. Our concern is that, what happens if this vehicle is going up a mountain hwy or any other situation where there is another vehicle following to closely and they hit us and end up killing the animals, me, the person that hit me, or all of us over a fuel transfer pump that GM says is not part of it's powertrain warranty or no longer in it's bumper to bumper warranty. Their line is, that the vehicle is currently repaired, and functioning properly, therefore there is no issue or any reason to keep a case file # on it. We have learned thru other instances, that there is a dealer service bulliten for the same problem we have been experiencing, and supposedly they are trying to find a solution, which has yet to come to light. All instances on this matter have happened in various states across the country, while cruising at speeds between 65 & 70 mph on interstate hwy to this date, with the last instance being on 12/01/2016. We have expressed concerns to GM of safety, and an actual fix for this issue, and so far the best we get from them is, we're sorry for your inconvenience.

- Plain City, OH, USA