This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
full bulletin at NHTSA ↗2009 Cadillac STS steering problems
severe Owners of the 2009 Cadillac STS have filed 3 NHTSA complaints about the steering at roughly $700 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See steering across all vehicles →
| Model year | steering complaints |
|---|---|
| 2005 STS | 4 |
| 2006 STS | 5 |
| 2008 STS | 5 |
| 2009 STS (this page) | 3 |
When does it fail?
Of the 3 steering complaints filed for the 2009 Cadillac STS, 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.
No new NHTSA steering complaint has been filed on this vehicle in over 6 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering steering 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 service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
full bulletin at NHTSA ↗This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
full bulletin at NHTSA ↗This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
full bulletin at NHTSA ↗This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
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 car traction control failed and the vehicle had the service stability system come on. The ABS light was lit and the vehicle would not accelerate or turn easily. The vehicle went into the ditch. This vehicle had headlights prior to the incident with bulbs popping out inside and moisture. After the repairs were done by the body shop the new headlights have had that same problem. The airbags…
While driving on the freeway all of a sudden the steering got extremely stiff and I lost my power steering. On the (dic) drivers information center the message displayed " service steering sys" when I stopped the car and let it cool down, normal steering returned. This problem keeps returning every day or two. At slow speed its almost impossible to turn, as when parking. I looked on…
The car simply made a grinding sound and I lost all control of the vehicle. I could not steer, brake or accelerate. The gears were corroded and as a result the gear shift had no control over the car. The car has 47,000 and is only 5 years old and I was told that gm did not put a sealant on the undercarriage and as a result water and ice and all other weather affected the gears and literally…
Common questions
How serious is the steering problem on the 2009 Cadillac STS?
It's a meaningful issue. 3 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $700.
At what mileage does the steering typically fail?
Based on the 3 complaints filed, steering issues most often appear around 57,667 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 $700 for steering 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 steering?
No active recalls currently cover steering 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.