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 4427…
2019 GMC Sierra HD engine problems
moderate 6 complaints filed with NHTSA · avg repair $3,100
Complaints
6
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 4 most recent
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,…
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 …
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.
Common questions
How serious is the engine problem on the 2019 GMC Sierra HD?
It's a documented issue but not catastrophic. 6 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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