RoadVitals

2019 GMC Sierra 2500 Engine Problems

Owner-reported complaints naming the engine system, filed with NHTSA

Data refreshed

Engine reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
8
Latest Jul 22, 2026
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
25%
of 32 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
1
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2019 GMC Sierra 2500 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 8 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming engine

Shown in the owner’s own words, exactly as filed

ElectricalEngine
Filed Jul 22, 2026
Fire reported

On 07/10/2026 at approximately 1:10 a.m., the parked and unoccupied vehicle caught fire while turned off. The vehicle had not been driven for several hours. A neighbor was awakened by the horn/alarm and popping noises, observed fire near the passenger-side cab/engine area, and called 911. The fire rapidly spread throughout the cab, engine compartment, rocker-panel areas, wheel wells, and truck bed, creating an explosion hazard and threatening a nearby occupied residence and garage. The fire department extinguished the blaze, but the vehicle was completely destroyed. Before the fire, the vehicle had experienced recurring coolant warnings, a DEF-system warning, and delayed starting associated with the main battery. No smoke, fuel odor, intentional ignition source, charging device, or known external fire source was present before the incident. Weather was calm. The exact failed component and cause remain UNKNOWN. A firefighter stated that the apparent fire origin was near the passenger side of the vehicle. The remains are available for inspection, subject to coordination with the vehicle owner and insurer. The incident has been reported to the fire department, insurer, manufacturer, and NHTSA.

NHTSA ID
11752275
Incident
Jul 10, 2026
Engine
Filed Jul 17, 2025

Emissions Code showed up on the dash display. Tried to fix the fuel filter and cleaned a sensor off and it still shows the emissions code.

NHTSA ID
11674331
Incident
Jul 14, 2025
ElectricalEngine
Filed Oct 3, 2024

The contact owns a 2019 GMC Sierra 2500. The contact stated while driving at various speeds, the vehicle lost motive power. The coolant fan seized and failed to operate as needed. There were no warning lights illuminated. The vehicle was towed to the local dealer to be diagnosed. The contact was informed that the check engine warning light was illuminated, and the knock sensor, coolant fan clutch, injector #6, and unstated wiring harness needed to be replaced. The dealer informed the contact that the parts to repair the vehicle were on back order. The vehicle was not repaired. The manufacturer was contacted and opened a case, but no additional assistance was provided. The failure mileage was approximately 87,000.

NHTSA ID
11617810
Incident
Jan 1, 2024
Mileage
87,000 mi
Engine
Filed Aug 18, 2022

The contact owns a 2019 GMC Sierra 2500. The contact stated while driving 45 MPH, the stabilitrak stopped functioning properly. The contact stated no warning light was illuminated. The contact took the vehicle to the local dealer, where it was diagnosed with needing to reset the computer electronic system. The vehicle was repaired but continued to experience the failure. The contact stated he was also smelling battery acid inside the cabin of the vehicle. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 21V496000 (Engine); the VIN was included. The manufacturer had been informed of the failure. The failure mileage was approximately 32,000.

NHTSA ID
11479903
Incident
Feb 29, 2020
Mileage
32,000 mi
Engine
Filed Oct 21, 2020

TL* THE CONTACT OWNS A 2019 GMC SIERRA 2500. THE CONTACT STATED WHILE DRIVING 5 MPH UP HILL, THE LOW COOLANT AND DEF (DIESEL EXHAUST FLUID) WARNING LIGHTS ILLUMINATED. THE CONTACT STATED THAT THE VEHICLE SHIFTED INTO LIMP MODE. THE CONTACT REVERSED TO LEVEL GROUND AND DECIDED TO DRIVE TO ANOTHER ROUTE TO HIS DESTINATION. THE VEHICLE WAS TAKEN TO PREMIER GMC, LTD. (2000 EASTERN RD, RITTMAN, OH 44270, (888) 564-1107) AND THE DEALER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS 12,200.

NHTSA ID
11365547
Incident
Oct 14, 2020
Mileage
12,200 mi
Engine
Filed Mar 26, 2020

RECALL WAS ISSUED APRIL 25 2019, AS OF TODAY ALMOST 1 YEAR LATER GM IS STILL SAYING I CAN'T GET IT DONE. YET THEY ARE BUILDING AND SELLING VEHICLES WITH UPDATED PARTS IN THEM.

NHTSA ID
11319351
Incident
Apr 25, 2019
Mileage
12,000 mi
Driver assistanceEnginePowertrain (other)
Filed Jan 27, 2020

4X4 LOW RANGE HAS NO POWER. I HAVE NEVER SEEN SUCH A WEAK PULLING TRUCK WHEN IN LOW RANGE

NHTSA ID
11302296
Incident
Jan 25, 2020
Mileage
15,000 mi
Engine
Filed Jan 19, 2020

MAKING TICKING NOISE FROM THE ENGINE WHEN IN MOTION.NEW CAR. BOUGHT TWO MONTHS AGO WITH 40000 MILES

NHTSA ID
11300359
Incident
Jan 5, 2020
Mileage
49,000 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .