general problems of the 2017 GMC Sierra 1500

Total loss of power while in motion on highway going 70 when first happened, got video of problem for shop while going lower speeds. Truck will loose all power the dash will turn off and then turn back on sometimes the engine will cut out completely.

The vehicle would shudder when trying to accelerate. I almost was hit by a semi truck trying to merge onto the freeway. Made an appointment with the mechanic then a couple days later I was at a stop sign and the vehicle would not accelerate at all. I placed in park the tried shifting back into drive and still nothing. I had to turn the vehicle on and off twice before I was able to shift it in drive an it actully would accelerate. Even then it would shudder and not accelerate fully. Very dangerous. Just hit 100k miles. GMC certified mechanic said the transmission is shot and needs to be replaced. Cost to replace over $6,000. 00 bought the truck in 2020 for $35,500 and just paid it off.

When stationary I pushed in on the gas throttle to go it didn't go so I pushed in a little more and it accelerated to fast then like it jumps. It also is shaking at certain speeds.

Lost of acceleration at a set speed the throtal stopped to increase the speed and just flooped to floor. When the speed slowed to a set point, acceleration control returned. When it hit the high setting it again lost control to increase speed. This happened every time I reached the drop off speed. Why dose this happen??? one time I was on a highway passing two trucks on a upgrade when this happened the #2 truck went to pass #1, the #2 truck was on my rear thank god acceleration returned. I reported this occurance to manufacture & to "NHTSA" over a year ago. I got "no" answers or responce from anyone!!!.

The truck lurches forward as if the accelerator is being depressed while coming to a stop obviously while depressing the brake. This causes dangerous situations every day in traffic. I have not found any solutions to the problem online. Reprogramming computer and replacing other speed control modules has not solve the problem for other drivers.