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moderate 4 complaints filed with NHTSA · avg repair $1,200 · see fuel system across all vehicles →
Of the 4 fuel system complaints filed for the 2021 GMC Acadia, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
Among the 6 model years of GMC Acadia in our records for fuel system problems, this one ranks #2 by owner-complaint volume.
Improperly attached and seated fuel supply lines may loosen or separate, causing a fuel leak and increasing the risk of a fire.
The contact owns a 2021 GMC Acadia. The contact stated that while his wife was driving at an undisclosed speed, the vehicle inadvertently lost motive power. The driver was able to coast to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the fuel pump…
It's a documented issue but not catastrophic. 4 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
Based on the 4 complaints filed, fuel system issues most often appear around 49,168 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
Independent shops typically charge around $1,200 for fuel system 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.
Yes — 1 active recall(s) cover fuel system issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.