The engine lost all power while driving down the road and code says p0016 Truck is now at a GMC service station being torn down

- Ward, AR, USA

The contact owns a 2019 GMC Sierra 1500. The contact stated that the vehicle was taken to the dealer for an oil change service. The contact stated that while in the process of picking up the vehicle, the dealer informed the contact that the vehicle had failed to start. The dealer determined that the engine needed to be replaced and provided an estimate for the repair. The vehicle was not repaired due to the cost. The manufacturer was not notified of the failure and informed the contact that the VIN was not included in a recall. The contact was referred to the NHTSA Hotline for assistance. The contact related the failure to NHTSA Action Number: PE25001(Engine, Engine and Engine Cooling). The failure mileage was approximately 115,000.

- Evans, GA, USA

As I was turning left from a county road to a highway my truck died on me. I was able to push it out of the road with the help of two other motorist. This is the second time in 4 months were my truck broke down due to engine failure. I had the motor repaired the first week in June 2025 for a similar instance. My truck is at the dealership right now awaiting repair because GM will not recognize that my 2019 6.2 L87 engine has the same known defects as other 2019 6.2 L87. This is a safety issue which GM refuses to acknowledge on my vehicle.

- Texarkana, TX, USA

Driving 30 MPH on 4 lane city road when engine shut off with many warning lights. Vehicle dead in the road, needed to be towed to dealership where I was informed that the engine had "locked up" They said they have seen many of these 6.2L engines locked up.

- Easley, SC, USA

One of the lifters collapsed resulting in catastrophic engine damage

- Damon, TX, USA

Our GMC engine with VIN# above needs to be recalled due to the failed Active Fuel Management (AFM) lifter which resulted in misfire-??s & engine failure. GMC's defective lifters create a safety concern due to potential engine stalling and power loss while driving, which can lead to dangerous traffic accidents. While GM has implemented extended component coverage for some issues and issued a recall for a related problem with L87 V8 engines, they have not with our GMC Sierra with the VIN# listed above, which has the same safety concern. Our GMC is currently at the dealership and we are determining next steps. Thankfully, my husband pulled over on the side of the road and turned the vehicle off before complete power loss. There was not much notification with the engine light prior to the incident. This could have ended very badly with my husband being injured or even worse my three children also being injured.

- Crownsville, MD, USA

Same issue as the 2021-2024 model. I was driving home from work, it lost all power mid turn, traction control, ABS & engine light are on. It-??s now ticking and knocking Here-??s a list from the shop on what-??s wrong with it. Estimated total to fix it is 12k [Other]: camshaft, all lifters, all lifter guides, cam retainer plate, cam sprocket bolt/valve, 4 pushrods, 3 rockers arms, balancer bolt, head gaskets, head bolts, valve cover gaskets, exhaust manifold gaskets, exhaust seals, exhaust manifold bolts x 10, intake gaskets, high pressure fuel lines, water pump gaskets, oil pump passage seals and suction seal, a/c belt, drive belt, a/c condenser line seals, 3 bond silicone, coolant, earl and filter Speak with your service advisor for more information on this recommended service.

- Pataskala , OH, USA

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving on three occasions and stopped, the vehicle started shaking abnormally. The check engine warning light was illuminated, and the message to "Check Parking Brake" was displayed. The contact engaged and disengaged the parking brake. The vehicle was taken to the dealer where it was diagnosed and determined that the lifers and cam shaft needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 74,000.

- Odessa, TX, USA

Engine failure; according to GM Mechanics, the lifters failed and this resulted in a broken push rod. Vehicle is now waiting for a new engine; $8,882 out of pocket from owner, because current recall does not include the 2019 or 2020; only the 2021 and newer of the same enginee, with the same exact failures. Vehicle has under 75,000 miles and has been serviced for oil change and engine maintenance at GM dealership since purchased. Several different mechanics, on with over 40 years of GM Engine experience, have evaluated the engine all deeming the same failure. Dealership confirms that there is a 6 to 8 week lead time for the new engine because, quote, "there are so many being replaced for the existing recall". I received no warning from the vehicle systems, no information from the local GM dealership or any other communication that my vehicle was at risk for this failure. I am without a vehicle for likely 2 months and will be 'out of pocket' almost $9,000 when this is done. This is my second Sierra Denali 1500 in the past 10 years, and my >10th GM vehicle to own, and for the 'Premium Pick-up Truck' on the market, I have always expected the finest quality and service, and this situation changes everything.

- Battle Creek, MI, USA

Engine failure while driving.

- Guymon, OK, USA

Subject: Urgent Vehicle Safety Complaint -?" 2019 GMC Sierra Denali Escalating mechanical and electrical failures -?" many beginning before 100,000 miles, and continuing as of today, at approximately 110,000 miles. These issues have made the vehicle unreliable and unsafe to drive. Since purchasing the vehicle, I have had it serviced regularly and reported that it was driving rough, jerking into gear, and showing early signs of engine and transmission problems. These issues were noted during multiple multipoint inspection services, yet no lasting solutions were provided. Major issues have included: -??Engine performance failures -??Fuel injector malfunction -??Serpentine belt and idler pulley damage -??A/C compressor belt failure -??Power steering malfunctions -??Vehicle stalling at traffic lights -??Loss of power on major highways -??Rear window water leaks -??Significant and ongoing electrical system problems -??Shaking when brakes applied after having brakes and rotors replace in March -??Screen monitor going out after paying over $ 900 dollars for updated software and repairs to the electronic component that cost over $2500. Despite continued maintenance, on Thursday, July 3, 2025, my truck began losing power and smoking heavily while driving on a busy highway in Georgia. My grandchild, who was riding with me, yelled, -??Grandma, it-??s smoking -?" please get out!-?? as we pulled off the road in fear of a fire. This terrifying incident left us stranded and emphasized just how dangerous this vehicle has become. I filed a formal complaint with the GMC Corporate Office, but no support provided or an investigation. Over the past six months, I have spent more than $5,000 trying to keep this vehicle operational. So many critical systems have failed, despite consistent maintenance, raises serious concerns. Finally, the fuel injector repaired 3 days later a message on dashboard displaying service Tire monitor system and steering wheel shaking when brakes are applied.

- Thomasville, GA, USA

Check engine light came on for the first time. Engine started knocking, had loss in power, took it to the closest shop. Initial report was lifter failure, after taking apart the engine for lifter replacement they deduced the bad lifters also were accompanied by camshaft damage, and bad heads. Overall resulting in engine replacement being required. Again, first time the check engine light has come on.

- Fuquay Varina, NC, USA

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at various speeds, the vehicle would intermittently hesitate upon depression of the accelerator pedal. The contact also stated that the check engine warning light had flashed on the instrument panel. The contact took the vehicle to an independent mechanic, where the mechanic informed the contact that there was a miscommunication between the engine and the transmission. Two dealers were notified of the failure, and each informed the contact that there were no recalls on the vehicle. The contact was also given a diagnostic fee to determine the cause of the failure; however, the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

- Paris, TN, USA

While traveling on the freeway at freeway speeds and with the cruise control on, on 7/22/2025, my vehicle abruptly start making an odd noise, the steering wheel started to vibrate / move as if I had a flat tire. I safely existed the freeway and pulled over to investigate, there was no flat tire yet the vehicle still made the noise and experienced issues when the throttle was applied. I proceeded to call a tow truck, and have the vehicle towed from Alpine, CA to Temecula and Temecula Valley GMC. While there the dealership gave me an initial diagnosis of "Miss fire in cylinder 8". We left the vehicle, and awaited more information. The next day I received a phone call stating that they needed to do an engine teardown to completely diagnose the issue, to the tune of approx. $1,500. In the dealers words, they needed to do the teardown to determine if "They could salvage the engine, or if it had to be condemned". The following day I received another call stating that the engine needed to be completely replaced due to a collapsed cylinder. The estimate for this work is over $13,000. the truck is 6 years old with 58, XXX miles.

- Corona, CA, USA

Yates GMC Replaced my engine a couple of years ago under warranty and my truck has never been the same. I-??ve been to the dealer multiple times. The drive, the way it operates always making cranking snapping sounds.

- Laveen, AZ, USA

On 7/17/25 vehicle was taken to Star Buick/GMC in Easton PA for rear brakes and an oil change. This vehicle has 49,981 miles on it. I was told after the oil change the tech took the truck for a test drive. I was told he made it about 20 feet and the engine seized. Either the tech forgot to refill the crank case or it is another GM 6.2 disaster. Please advise as the dealer is quoting over 12K to replace engine.

- Easton, PA, USA

My 2019 GMC Sierra 1500 truck exhibiting all the same signs as the recent call for the same 2021 truck recall according to the dealership. This is for the L87 V8 engine. The 2021 engine was used in the 2019 trucks but again the 2019 trucks are not a part of the recall. My repair bill is upwards of $10,000 and diagnostics is upwards for $4,000 even though all are aware of the recent recall and my truck having the same engine.

- Schererville, IN, USA

The contact owns a 2019 Chevrolet Silverado 1500. The contact stated that while driving 70 MPH, there was an abnormally loud sound coming from the engine compartment before the vehicle lost automotive power. The vehicle was towed to the local mechanic who diagnosed the vehicle with engine failure. The contact was advised that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were not notified of the failure. The failure mileage was 126,000.

- North, SC, USA

Vehicle motor suddenly stopped working. Vehicle was pulled into a driveway safely then wouldn-??t crank anymore.

- Wetumpka, AL, USA

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving on the highway at 60 MPH, there was an abnormal knocking sound coming from the engine. There was no warning light illuminated. The vehicle was taken to a local dealer where the vehicle was diagnosed, and the contact was advised that the camshaft and lifters were faulty and needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 73,000.

- Woodbridge, VA, USA