2006 CADILLAC STS FOUR WHEEL DRIVE V8. THE REAR DIFFERENTIAL LOCK-UP WITHOUT WARNING GOING AT 65 MPH ON I-94 EB FREEWAY AT THE 10 MILE RD EXIT IN MICHIGAN CAUSING THE VEHICLE TO BE OUT OF CONTROL AND SPIN AROUND THREE TIMES IN A CIRCLE FROM THE LEFT LANE TO THE RIGHT LANE ACROSS THE ENTIRE FREEWAY COMING TO A COMPLETE HALT ON THE RIGHT SIDE SHOULDER. THE VEHICLE CAME CLOSE TO UPENDING AND ROL…
2006 Cadillac STS powertrain problems
moderate 10 complaints filed with NHTSA · avg repair $2,500
What owners are reporting 1 most recent
Common questions
How serious is the powertrain problem on the 2006 Cadillac STS?
It's a documented issue but not catastrophic. 10 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.