Certain vehicles have a left or right rear suspension toe link that could separate because of an incorrect weld
If this were to occur, the affected rear wheel would be able to turn in or out, affecting vehicle control, which could result in a crash.
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severe Owners of the 2005 Cadillac STS have filed 5 NHTSA complaints about the suspension at roughly $900 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See suspension across all vehicles →
| Model year | suspension complaints |
|---|---|
| 2005 STS (this page) | 5 |
| 2006 STS | 3 |
If this were to occur, the affected rear wheel would be able to turn in or out, affecting vehicle control, which could result in a crash.
The manufacturer has issued service bulletins covering suspension 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 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 ↗This preliminary information bulletin provides a procedure for suspension connector diagnosis and replacement due to the magnetically controlled suspension electrical connector not seated.
full bulletin at NHTSA ↗Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Improper diagnosis may lead to unnecessary component replacement. Use the following information to determine if the condition is normal acceptable seepage or a defective component
full bulletin at NHTSA ↗This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new
full bulletin at NHTSA ↗This informational 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 ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
It's a meaningful issue. 5 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $900.
Based on the 5 complaints filed, suspension issues most often appear around 101,255 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.
Independent shops typically charge around $900 for suspension 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.
Yes — 1 active recall(s) cover suspension issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.