166 complaints reported

2019 GMC Sierra 1500 Engine

Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.

Reports
166
Crashes
0
Fires
0
Injuries
0

Complaint Timeline

Chronological view of owner reports

Jan 2025

So August 29, 2023, at 46,000 miles, my engine failed completely with no warning or anything, while driving to work, was at the dealership until October 4th. Then December 10th, 2024 with 83,000 miles my engine failed again while my little brother and I were driving home late that night, on the highway at 70mph , suddenly losing power, causing us to be stranded on the side of the highway at 2am. Has been at the dealership since December 11th, with no eta in sight, and we're at 36 days and counting. A spac case was opened to escalate getting a part. This truck has been a problem and I want to get rid of it as its a safety hazard to myself, family members, and other on the road. GM customer service has also been giving me a runaround as well.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Oct 2024
Jan 2025

Engine oil cooler lines leaking from crimp joints. "Oil Pressure Low Turn Vehicle Off" display showed on dashboard. Oil is present all over the bottom of my truck as well as a trail along the road and the parking lot where I parked it. I have not brought it to the dealership yet. There has been a Customer Service Program notice about this issue, I got my truck after the issue was sent out so I did not get the letter or supposedly this truck is not part of it even thought it is the exact issue. Customer Service Program number N212326940.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Nov 2025
Jan 2025

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at various speeds, the vehicle hesitated and failed to properly accelerate while the accelerator pedal was depressed. No warning light was illuminated. In addition, the contact was aware of excessive oil consumption and the vehicle was previously taken to a local dealer. An appointment with the same local dealer was scheduled to inspect the vehicle. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 87,000.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Nov 2025
Jan 2025

I keep getting low oil warning even after oil change

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Jan 2025
Jan 2025

Engine Failure. 1. The lifter in cylinder 5 failed (dropped) this prompted me to bring the truck in initially. 2. Upon further inspection all the cam bearings were scored and out of spec. Waited 4 months for an engine replacement from GM. Eventually I cut my losses and sent the block to a machine shop. This was all paid out of pocket. Truck had 74,000 miles on it.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Jun 2025
Jan 2025

Engine suddenly lost power at highway speed. Truck was still running so I was able to get off the highway. Engine failure was caused by bent lifter. Lifter failure also caused damage to the camshaft. Vehicle was at dealership for significant time with a large repair bill that GM is not willing to cover due to the vehicle being 5 weeks out of warranty

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Sep 2025
Jan 2025

The contact owns 2019 GMC Sierra 1500. The contact stated while reversing and depressing the brake pedal, the vehicle stalled. The contact shifted to park(P), turned off and restarted the vehicle, but the failure persisted. The vehicle was towed to an independent mechanic, where the starter was replaced, and the contact was informed that the engine needed to be replaced. The vehicle was then towed to the dealer, where it was diagnosed that the engine had failed and needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Action Number: PE25001 (Engine, Engine and Engine Cooling). The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 84,000.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Jun 2025
Jan 2025

Truck is at the Jim Gauthier GMC dealership on Mcphillips in Winnipeg, Canada. Engine endured catastrophic failure and is currently waiting for a new engine.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Jun 2025
Jan 2025

The engine lifters failed with out notice twice. Upon inspection of the vehicle it was determined that there was no issues that contributed to this failure. I paid to have the problem fixed within a year the same problem happend again. I was on the expressway and my car just shut off with out warning while cruising at expressway speeds and refused to cut back on for about 2 hrs.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Mar 2025
Jan 2025

During city driving my L87 engine losses power during acceleration. The start and stop feature makes loud scratching noises when it starts up.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Oct 2024
Jan 2025

I was driving my truck from lunch and out no where the truck stalled and did crank back had it towed to the dealership and said needed new engine because the timing had jump..

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Jan 2024
Dec 2024

I have a 2019 gmc sierra 1500 elevation. The dash indicated low oil with 60lbs of oil pressure. I stop park my vehicle and see there is a puddle of oil underneath my truck. It appears to be leaking (extremely high flow rate) from the oil cooler lines where the rubber has given way from the metal crimping. Apparently after calling the dealership and reading online there isn't any type of recal for this issue even tho there is a Customer Satisfaction Program N212326940 implemented for Alaska and Canada due to the cold weather climate causing the failure. I live in western Pennsylvania and currently had a cold snap of 11°F. The dealership wants me to pay out of pocket and take my vehicle in to get diagnosed for service , which also means paying to have it towed to the dealership since it is un-drivable . Then pay for the very obvious service and file to see if I can be potentially reimbursed. This vehicle has less than 70,000 miles on it and is outside of the warranty. However this is a reported common issue online and even through the service department in Zelienople Pennsylvania because the tech. Told me they have the parts in stock because they do alot of them when I was inquiring into the issue.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Dec 2024
Nov 2024

The engine of the vehicle malfunctioned. The vehicle is available, but however it was taken to a certified dealership to be repaired. My safety and the safety of my three nieces, who were in the vehicle at the time, were put at risk as the vehicle all of a sudden staled in the middle of the Interstate while driving at 75 miles speed rate. The dealership repaired the vehicle by replacing the engine because the camshaft was scored, one of the lifters had failed, and a pushrod was bent. The only warning lamp/message was at the time of stale which read service ESC, Service parking break, and there was a third message but could not remember. I have only had the vehicle for sixteen months. The vehicle was taken in for it regularly scheduled oil changes and tire rotations. There were no issues or warnings prior to the engine replacement which cost me $8623.00.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Jul 2024
Oct 2024

While driving the transmission lurches forward when I give it gas after slowing down or when I come to a complete stop. Also it makes a shuddering type noise randomly when driving and it feels like the truck is about to shut off. These issues happen on multiple occasions.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Sep 2024
Oct 2024

Oil line separates causing massive oil leak causing engine to fail

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Jan 2024
Oct 2024

Lifter cam failure. Twice

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Sep 2023
Sep 2024

2019 GMC SIERRA 1500, Fuel Injectors. This was a recall back in April of 2021. My vin is not on the recall list but am having the same problems. While driving the check engine light came on alone with no power check abs system and parking brake.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Sep 2024
Feb 2024

Engine oil cooler line crimp connections are not properly crimped and leaking oil whether the truck is operating or sitting off. It also appears the flare or threaded connection has failed. I went to the GM dealership who said my truck wasn’t part of the recall but my lines are very clearly the same affected parts and would not be available for repair under the recall. I suspect there are other trucks like mine that were missed in the initial recall. I had the lines inspected at another repair shop but all the GM oil cooler lines were unavailable and no back order was permitted. There have been no warning lights for low oil pressure yet but the worst level I have seen so far was only 3 of 8 in quarts in the oil pan. I’m afraid of the lines blowing out on the road and causing a total uncontrollable engine failure and oil slick for other drivers.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Sep 2023
Nov 2023

Engine Oil Cooler Line detached from Crip fitting. Vehicle: 2019 Sierra 1500 powered with 6.2L L87. GM has a published policy for a specific 530 vehicles, GM Claims my VIN was not covered hence no recall police "Customer Satisfaction Program N212326940" letter was released for subject VIN. It's clear, this issue exists beyond the scope of 530 vehicles. No know warnings existed prior to the incident. Vehicle has been repaired at owners expense and not supported by GM.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Nov 2023
Oct 2023

With only 89K miles on my vehicle I’m having to replace 13K dollars worth of parts due to a known issue with the 5.3L V8 engine with the AFM DOD system that GM hasn’t fixed and refuses to help cover the cost cause I’m outside my warranty. I feel they need to extend the warranty miles and time frame due to the common occurrence of this issue

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Sep 2023
Aug 2023

The lifter valves for the dynamic fuel management system have failed twice resulting in an immediate loss of power, rough driving, and low speed. To replace the first time, it cost $3500 at a mechanic. The 2nd time that it happened (8 months later), we now have to have the engine replaced and it cost almost $10,000. GM has refused to take any ownership in these faulty lift valves and someone is going to lose control of their vehicle when this occurs.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Jul 2023
Apr 2023

The contact owns a 2019 GMC Sierra 1500. The contact stated while driving 10 MPH, the low oil pressure warning light illuminated. The contact stated that he parked the vehicle and became aware that oil was leaking underneath the vehicle. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the engine oil cooler line to be replaced. The vehicle was not repaired. Upon investigation, the contact associated the failure with Customer Satisfaction Program Number: N212326940 (Engine Oil Cooler Lines Detaching from Crimp); however, the VIN was not included. The manufacturer had been informed of the failure. The failure mileage was approximately 82,000.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Mar 2023
Apr 2023

The contact owns a 2019 GMC Sierra 1500. The contact stated while driving 25 mph, the oil pressure low/turn vehicle off warning light was illuminated. The contact was able to park the vehicle at a near parking lot. The contact exited the vehicle and hear an abnormal noise exiting under the vehicle and saw an oil leak. The contact stated her father-in-law came to the location to add oil but the vehicle keep leaking. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with the engine cooler line needed to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 84,000.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Mar 2023
Mar 2023

Engine had catastrophic failure while driving down highway with no warning. No check engine light. Loud bang and loud metal on metal slapping with violent shaking of front end of truck. Towed to dealer. So far they say lifter failed, and push rod collapsed and drove through engine block. 40000miles, 2019 Sierra 1500 Denali with 6.2l V8.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Mar 2023
Mar 2023

I have faulty lifters and it has been inspected by a GM dealer. I believe this issue should have a service bullentin to have it fixed. They have others for faulty valve lifters in the same model truck that I have.

Type: Vehicle, Vehicle: 2019 GMC SIERRA 1500, Manufacturer: General Motors, LLC
Incident: Jan 2023

Trend Over Time

Complaints by year

Quick Summary

The 2019 GMC Sierra 1500 has 166 Engine complaints on file. Review the timeline above for detailed owner experiences.