This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
full bulletin at NHTSA ↗2019 GMC Yukon powertrain problems
moderate Owners of the 2019 GMC Yukon have filed 11 NHTSA complaints about the powertrain at roughly $2,500 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See powertrain across all vehicles →
| Model year | powertrain complaints |
|---|---|
| 2015 Yukon | 40 |
| 2016 Yukon | 33 |
| 2017 Yukon | 45 |
| 2018 Yukon | 16 |
| 2019 Yukon (this page) | 11 |
| 2020 Yukon | 14 |
| 2021 Yukon | 43 |
| 2022 Yukon | 26 |
| 2023 Yukon | 34 |
When does it fail?
Of the 11 powertrain complaints filed for the 2019 GMC Yukon, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 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.
Powertrain accounts for 22% of all owner complaints filed against this vehicle, across 5 categories tracked.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
full bulletin at NHTSA ↗This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
full bulletin at NHTSA ↗This Preliminary Information communication provides information to the technician about vehicles that may have a delayed engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears. This may be due to loose stator support to pump cover bolts causing a leak at the stator support to pump cover gasket. Technician will check for the bolts to be loose. If any of the bolts are loose or the gasket is misaligned or leaking, the transmission pump cover must be replaced and the 1234 clutch plates should be inspected for being distressed and repaired as needed.
full bulletin at NHTSA ↗This Preliminary information communicates a possible retainer ring dis-lodged for a DTC P2714, may not have reverse as well.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
The contact owns a 2019 GMC Yukon. The contact stated that while driving at an undisclosed speed, the vehicle briefly hesitated and jerked before returning to normal functionality. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the transmission. The contact was informed that the transmission needed to be replaced. The…
The vehicle experienced a sudden and rapid mechanical failure of the 6-speed automatic transmission (6L80 model) within a span of less than two weeks. The light did not come on until the transmission was past salvage. The failure escalated rapidly from initial minor slipping to a severe loss of vehicle propulsion. A loss of acceleration while driving poses an immediate crash hazard, as the…
Transmission is acting funny. Stuck in low gear /not shifting at low speeds. Vibration sometimes at higher speeds when shifting gears. 8 9 10 gears.
Common questions
How serious is the powertrain problem on the 2019 GMC Yukon?
It's a documented issue but not catastrophic. 11 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Based on the 11 complaints filed, powertrain issues most often appear around 106,290 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 $2,500 for powertrain 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 powertrain?
No active recalls currently cover powertrain 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.