2019 GMC SIERRA 1500 Complaints

Engine seized it won’t crank we swapped the alternator 2 times the battery once the and the starter once we also swapped the battery chip 3 times and it would turn off out of no where. We thought it was because of the miles but it was working fine. And took care of it nicely. We took it to a dealership and they told us that it needed a new motor because it was seized. But before that it would start up and turn off after 15 minutes. We took it somewhere else in a tow truck and they told us that the engine was seized.

On Jan 7, 2024, we went to Walmart to shop (DeRidder, LA). The truck was running normal. All gauges were normal and the reason I can say this is because our truck broke down in 2023, so we have a habit of checking them when we start the truck before driving and during driving periodically. When leaving Walmart we were at the red light and the truck just stopped. A message came on and said to shift into Neutral, which we did. The truck then died and would not stop. Pushed it into the parking lot and had it towed to Billy Navarre Chevrolet, Lake Charles, LA. After they looked at the truck on Jan 9, they said the engine was seized and we needed a new one. They couldn't say why. They said that would be figured out when the old motor was shipped back. After putting in the new motor, the POC at the dealership called and said we needed a new water pump that the one he took off was bad. They insinuated that was the cause of the engine seizing. However this wasn't determined until they went to put the old one on. If the water pump failed, we believe it should have started showing engine overheat and there was no such thing.

Complete engine failure. Absolutely insane. All lights on dash, engine seized while driving!!!!!!!!!!!!!! Unbelievable that GMC keeps making us fix issues and pay for it! They won't cover the cost. This has been happening too much and putting my family at risk!

Transmission has had shifting, shudder and failure to go into gear from day 1 of owning the truck. Has been to the dealer on several occassions for the same issue just to be told that they either could not reproduce the issue or it was normal. On another occasion the dealer was able to notice some shudder and shifting issue and replaced the valve body under warranty. Now that the vehicle is out of warranty I’m being told the vehicle needs a complete transmission rebuild and torque converter at an out of pocket cost to me of $8500. I know of many others with the same issues from the onset of owning these vehicles.

Engine failure- sent in old engine as a core piston broke off the rod causing the engine to seize replacing with reman engine from GM

Driving home on a rural two-lane road the engine started make a load banging noise on the drivers side, than it started to skip and not running on eight cylinders. it than lost oil pressure.

I was driving down the highway with my teen daughter heading to a hockey tournament in Michigan. We live in Illinois. While in Michigan on the highway driving around 80 mph, I went to pass a vehicle and several service warning lights starting flashing on the dashboard. The ones that flashed were: Service ESC, Service Parking Break, Steering Assist is Reduced Drive with Care. At the time, the engine started making rattling noises and sounded rough. I could feel there was a problem right away. I carefully pulled over and turned the truck off. I waited a few minutes and then turned the truck back on. The service warning lights were still on and the engine was still running and sounding rough. I tried turning it off and on again but the same problem persisted. I then drove the truck about one mile to the next exit just to get off the highway. I was doing about 45mph during this time. I then pulled into a parking lot and contacted On Star to diagnosis the vehicle. They diagnosed a P300 code and said it was an engine misfire. I then found a local repair show and drove another 2 miles to get there. They looked at it for an hour and said they could not help me. They were also getting the cylinder misfire code. I had the vehicle towed to a dealership that same day. I had to rent a car to return back to Illinois with my daughter. After a week and a half, the dealer started looking into the issue. They diagnosed a lifter failure and said a new engine was needed. We purchased the new engine for $10,490 and the dealer installed it. Three weeks later, the vehicle was ready and we had to drive to Michigan to pick it up. I’ve reached out to GM and they just apologized and offered us 15,000 points in our GM account. We declined. We asked for financial assistance and they also declined and said it was out of warranty and it’s our responsibility to pay for all costs.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving approximately 25 MPH, there was a ticking sound coming from the engine compartment. The contact pulled over to the side of the road where the engine seized. There were no warning lights illuminated. The vehicle was towed to the dealer who diagnosed that the engine had seized and needed to be repaired. The engine was rebuilt. The manufacturer was made aware of the failure. The failure mileage was 114,660.

The contact owned a 2019 GMC Sierra 1500. The contact stated that while driving 25 MPH, there was an abnormal sound coming from the rear of the vehicle before the vehicle jerked forward. There was no warning light illuminated. The contact was able to pull over on the side of the road. The contact also stated that the radio would turn on, but there was no image on the screen. The contact took the vehicle to the dealer; however, no cause for the failure was found. The vehicle was not diagnosed nor repaired. The manufacturer was made aware of the failure and informed the contact that the vehicle was no longer covered under an undisclosed Customer Satisfaction Program. The contact stated that the abnormal sounds and failure persisted, and the manufacturer was contacted again. The vehicle was taken to the dealer and was diagnosed with a misfire and that the brake lights needed to be replaced. The vehicle was not repaired. The failure mileage was approximately 42,000.

The transmission is experiences periodic rough shifting, a shudder and droning noise between 1,000 and 1,500 RPM. An independent transmission specialty shop states the transmission is starting to fail. The transmission, differentials and transfer case fluids were changed at 53,000 miles and again at 104,000 miles.