The contact works for a company that owns a 2023 GMC Sierra 2500. The contact stated that the vehicle experienced intermittent electrical failures. While driving, the vehicle stalled upon acceleration, followed by a total loss of electrical power. The vehicle was towed to a dealer for inspection; however, the failure could not be duplicated. The failure mileage was 177,000.
2023 GMC Sierra HD electrical problems
moderate Owners of the 2023 GMC Sierra HD have filed 3 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of October 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
| Model year | electrical complaints |
|---|---|
| 2019 Sierra HD | 8 |
| 2022 Sierra HD | 11 |
| 2023 Sierra HD (this page) | 3 |
| 2024 Sierra HD | 30 |
When does it fail?
Of the 3 electrical complaints filed for the 2023 GMC Sierra HD, here's the actual mileage breakdown — failures cluster heaviest at 150,000+ 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.
Of the 4 model years of GMC Sierra HD we track for electrical problems, this one has the fewest owner complaints on file (3).
Owners are still filing on this — the most recent NHTSA electrical complaint for this vehicle was logged 7 days ago.
What owners are reporting 1 most recent
Common questions
How serious is the electrical problem on the 2023 GMC Sierra HD?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Based on the 3 complaints filed, electrical issues most often appear around 105,000 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.
What does it cost to fix?
Independent shops typically charge around $850 for electrical 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 electrical?
No active recalls currently cover electrical 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.