Yes, the airbag has not been replaced but I have another SERIOUS SAFETY PROBLEM with this vehicle: The stabilitrak system does NOT work, it is NOT POSSIBLE to shift into gear, if the vehicle is put into use there is a definite possibility that the truck will go into LIMP MODE with a very limited speed (20 mph?) while trying to keep up with the traffic flow at 75+mph while the. transmission sear…
2009 GMC Sierra powertrain problems
moderate 9 complaints filed with NHTSA · avg repair $2,500
Complaints
9
Recalls
0
Crashes
0
Avg fix
$2,500
What owners are reporting 2 most recent
TRANSMISSION DELAY FROM PARK TO DRIVE. AS TRANSMISSION MOVES INTO DRIVE THE TRUCK JERKS FORWARD VIOLENTLY. PARK TO REVERSE DID NOT SEEM TO BE A PROBLEM. DEALER WORKED ON THE TRUCK FOR APPROXIMATELY 8 HOURS, FLUSHED TRANSMISSION, AND PERFORMED OIL CHANGE, DID NOT NOTICE ANY METAL IN THE TRANSMISSION FLUID AND SOUGHT AN UPDATE FOR THE TCM (WAS UP-TO-DATE); HOWEVER, A SMALL AMOUNT OF WATER WAS SEEN …
Common questions
How serious is the powertrain problem on the 2009 GMC Sierra?
It's a documented issue but not catastrophic. 9 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?
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 $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.
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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