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Problems with 2015 GMC Sierra 1500 VEHICLE SPEED CONTROL

On average, the 2015 GMC Sierra 1500 starts to “feel” problems with the VEHICLE SPEED CONTROL and its various aspects after 21 675 miles.

Recently reported VEHICLE SPEED CONTROL problems on 2015 GMC Sierra 1500

Vehicle is shutting off at any given speed, ie. 35 mph in town or 70 mph on a highway with oncoming traffic. when vehicle shuts off, loss of all control of the vehicle takes place. no brakes, no steering, nothing until the vehicle randomly turns back on. this is not a consistent occurrence to know when it is going to happen or be prepared for it to happen. i watched my husband shoot across the road into the other lane and almost put the vehicle over a bank one night when it happened. this has been an issue since january 2018 for us, we have taken it to the dealer where it was purchased multiple times for them to tell us they can't duplicate the issue and nothing is coming up in their system for an error code. it has caused a major inconvenience for my family, as we don't dare put our children in the truck leaving the responsibility solely on one parent to transport the kids to and from daycare. i worry for the safety of my husband on a daily basis.

Truck has vibration in the steering wheel and gas pedal between the speeds 30-75 mph. when driving the truck at any of the listed speeds and have the speed steady at said speed, vibration can be felt in the steering wheel and gas pedal in the 2wd and 4wd-auto modes. also when the engine shifts from v8 to v4 modes. truck has been to three (3) dealers so far and did not see much improvement in the vibration. *tr

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