2019 Gmc SIERRA 2500 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
32 owner complaints analyzed
7 distinct recall campaigns
28,729 mi median reported failure mileage
Scope: 2019 model year. Data snapshot: . 12 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 9 of 32 complaints (28.1%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 7 | 21.9% |
| Fuel system concerns | 6 | 18.8% |
| Braking behavior | 5 | 15.6% |
| Transmission and shifting | 2 | 6.3% |
| Engine operation | 1 | 3.1% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 9 |
| Engine | 6 |
| Service Brakes | 4 |
| Equipment | 2 |
| Exterior Lighting | 2 |
| Fuel System, Diesel | 2 |
| Fuel/Propulsion System | 2 |
| Power Train | 2 |
Electrical System: 9; Engine: 6; Service Brakes: 4; Equipment: 2; Exterior Lighting: 2; Fuel System, Diesel: 2; Fuel/Propulsion System: 2; Power Train: 2
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 5 |
| 25,000 to 49,999 | 4 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 5; 25,000 to 49,999: 4; 50,000 to 74,999: 1; 75,000 to 99,999: 1; 100,000 to 149,999: 1; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (5). 20 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2019 | 1 |
| 2020 | 5 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 5 |
| 2026 | 3 |
2019: 1; 2020: 5; 2021: 2; 2022: 5; 2023: 5; 2024: 6; 2025: 5; 2026: 3
Pattern summary
Electrical System leads the component reports. Electrical and battery issues appears in 7 complaint narratives. Fuel system concerns appears in 6 complaint narratives. Braking behavior appears in 5 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11462140 · 2022-04-25 (April 25, 2022)
The sockets in the rear brake lights had excessive corrosion and was causing the terminals on the bulbs to deteriorate. The lights were malfunctioning in all situations from braking, turn indicator and running lights. I was notified by the system that there was a problem. After trying to resolve the problem and replacing the bulbs the condition only worsened. I was then pulled over by law enforcement that told me I had nearly no rear lights at night. After banging the plastic light frames I was able to make it home. I brought my truck into the …
Owner-reported narrative. Look up ODI 11462140 at NHTSA ↗
Owner report 11479903 · 2022-08-18 (August 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: 21V4960…
Owner-reported narrative. 32,000 miles reported. Look up ODI 11479903 at NHTSA ↗
Owner report 11433049 · 2021-09-15 (September 15, 2021)
The contact owns a 2019 GMC Sierra 2500. The contact stated while stationary at a traffic light, he started to smell diesel fumes inside the cabin of the vehicle. The contact stated no warning light was illuminated. The contact was able to drive to his residence and while inspecting the vehicle, he noticed a fuel leak located near the engine. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The VIN was associated with NHTSA Campaign Number: 21V496000 (Equipment). The manufacturer…
Owner-reported narrative. 25,458 miles reported. Look up ODI 11433049 at NHTSA ↗
Owner report 11507696 · 2023-02-16 (February 16, 2023)
The connectors to the fuel pump have failed causing the truck to mechanically fail and not operate. This is a common problem per the diesel technician who diagnosed our truck and in his opinion should not be happening as often as it does. It’s specifically the cylinder 4 injector control circuit and diagnosis states the pins are corroded.
Owner-reported narrative. Look up ODI 11507696 at NHTSA ↗
Owner report 11490822 · 2022-10-25 (October 25, 2022)
I purchased a 2019 GMC Certified 2500 Diesel Truck with 48000 miles I started getting alerts on my dash stating TRAILER BRAKE SYSTEM over and over. I would press the dismiss button but it would not stop from appearing and dinging over and over. I took vehicle to dealer ship since I have remaining bumper to bumper and extended warranty coverage. To my dismay I find out the Dash Trailer Brake System switch is faulty. Good thing I had an extended warranty since the bumper to bumper does not cover electrical. While truck was still under warranty t…
Owner-reported narrative. Look up ODI 11490822 at NHTSA ↗
Owner report 11365547 · 2020-10-21 (October 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, [phone removed]) AND THE DEALER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAI…
Owner-reported narrative. 12,200 miles reported. Look up ODI 11365547 at NHTSA ↗
Owner report 11669560 · 2025-06-26 (June 26, 2025)
While merging into highway traffic the truck surged with RPM going to 5,000. Shortly after this event there was a grinding or rattling noise in the transmission bell housing along with unusual shifting behavior and a repeatble vibration + rotational noise between 50 and 60 MPH. The vehicle was brought to the dealer for inspection at least 4 times with claims they could not hear the obvious noise that did not go away. On the last drop off, I picked up the vehicle and the noise was gone but the shifting behavior and the constant vibration from…
Owner-reported narrative. Look up ODI 11669560 at NHTSA ↗
Owner report 11619152 · 2024-10-10 (October 10, 2024)
The contact owns a 2019 GMC Sierra 2500. The contact stated while driving 10 MPH, the vehicle lost motive power and stalled and shut off independently. The vehicle was towed to a dealer and was diagnosed, and it was determined that the fuel pump control module needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 33,000.
Owner-reported narrative. 33,000 miles reported. Look up ODI 11619152 at NHTSA ↗