Service bulletins for the 2006 Cadillac STS
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
755 on file from NHTSA, as of 2026-10-19.
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By component
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Only bulletins with component: Steering are shown. Show all
| 03-00-91-001I | 2023-11-22. Service bulletin. WHEELS; POWER TRAIN; STEERING; SUSPENSION; ENGINE AND ENGINE COOLING. 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. |
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| 120232002B | 2020-08-10. Service bulletin. STEERING. This technical bulletin provides a procedure to eliminate a power steering noise due to extremely low temperatures. |
| PI0671A | 2018-05-21. Service bulletin. STEERING. This preliminary information bulletin provides information for diagnosing a power steering fluid leak at the fluid reservoir. |
| 12-02-32-002A | 2018-04-23. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; STEERING. This technical bulletin provides a revision for 12-02-32-002 to add the 2013-2014 model years, add noise as a possible condition and add a Note in the Instructions section. |
| PIC3278G | 2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STEERING. This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. Technician will need to determine what type of call the customer is having that is unwanted. The vehicle may receive an incoming call just like any other phone. Typically the customer will hear the phone ringing in the vehicle. This scenario also includes incoming Bluetooth calls. One type of unwanted call can be made if the key pad is faulty the OnStar system will try to make a blue button call for shorted voltage in the circuits. The OnStar module could have an internal fault and produce a ″Phone Unavailable″ audio message also it may have a Diagnostic Trouble Code U1500 or B1000. Refer to diagnostics for the Diagnostic Trouble Code making sure to follow any applicable Bulletins or Preliminary Information sheets. A “Ready” or “OnStar ready” audio message heard while driving. In some cases it has been found that the customer is inadvertently pressing the ″push to talk″ button on the steering wheel controls. On rare occasions, other issues in the steering column or Steering Wheel Control system may induce this concern. |
| PIC3171E | 2017-08-15. Service bulletin. ELECTRONIC STABILITY CONTROL (ESC); STEERING:COLUMN; STEERING. This Preliminary Information communication provides information to the technician about vehicles that have unwanted Stabilitrak activation and/or a "STABILITY SYS ACTIVE" message on the Driver Information Center when turning. Technician may find Diagnostic Trouble Code C0252 or C0710 set. Technician should monitor the Steering Wheel Position Sensor Phase A and Phase B parameters under Vehicle Stability Enhancement System data. Technician will need to inspect the lower steering column bearing for damage, if the Steering Wheel Position Sensor Phase A and Phase B is incorrect. If movement is noted, replace the steering column assembly or install a steering column kit. |
| 4268 | 2007-01-30. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID. POWER STEERING FLUID LEAK FROM PRESSURE LINE FITTING AT THE REAR. *KB |
| 4105 | 2006-07-14. Service bulletin. STEERING:COLUMN. STEERING COLUMN DAMAGE WHEN SUSPENDING CRADLE FROM INTERMEDIATE SHAFT. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.