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Service bulletins for the 2008 Cadillac CTS

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.

1138 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Steering are shown. Show all

Bulletins, newest first
03-00-91-001I2023-11-22. 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.
15-00-89-004F2023-09-08. Service bulletin. STEERING; SUSPENSION; ENGINE AND ENGINE COOLING; POWER TRAIN. 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.
15-00-89-004E2022-10-11. Service bulletin. POWER TRAIN; SUSPENSION; ENGINE AND ENGINE COOLING; SERVICE BRAKES, HYDRAULIC; STEERING. 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.
120232002B2020-08-10. Service bulletin. STEERING. This technical bulletin provides a procedure to eliminate a power steering noise due to extremely low temperatures.
PI0671A2018-05-21. Service bulletin. STEERING. This preliminary information bulletin provides information for diagnosing a power steering fluid leak at the fluid reservoir.
12-02-32-002A2018-04-23. 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.
17-NA-0472017-08-31. Service bulletin. WHEELS; STEERING. This bulletin provides information on how to properly clean wheel speed sensors and wheel bearings that may cause conditions of EBCM Wheel Speed Sensor Diagnostic Aid for ABS Message -Click Or Ratchet Noise- Service Traction Message - Service Stabilitrak Message - Service Steering Message due to dirt and debris.
PIC3278G2017-08-15. 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.
PIP4404E2017-08-15. Service bulletin. STEERING:LINKAGES:ARM:IDLER AND ATTACHMENT. This Preliminary Information communication provides information to the technician vehicles with a slight rough idle. Technician should compare the concern with a like vehicle. If the concern is worse than a like vehicle, technician should follow published Service Information diagnosis and repair as necessary.
PIC4986D2017-08-15. Service bulletin. STEERING; WHEELS. This Preliminary Information communication provides information to the technician about vehicles that have a bind condition when the car is in reverse or driving forward and the steering wheel is turned to the full-lock position. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIC5511A2017-08-15. Service bulletin. STEERING. This Preliminary Information communication provides information to the technician about vehicles that have a notched feeling, or a steering shudder, during slow steering input at idle with the vehicle stationary. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIC4986E2017-08-15. Service bulletin. STEERING. This Preliminary Information communication provides information to the technician about vehicles that have a bind condition when the car is in reverse or driving forward and the steering wheel is turned to the full-lock position. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIC4986F2016-10-25. Service bulletin. STEERING. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE CONDITION IS A NORMAL OPERATING CHARACTERISTIC OF THEIR VEHICLE. A CUSTOMER MAY COMMENT THAT THEY FEEL A STEERING BIND CONDITION WHEN THE CAR IS IN REVERSE, OR DRIVING FORWARD AND THE STEERING WHEEL IS TURNED AT OR NEAR THE FULL-LOCK POSITION.
PIC-49862016-08-16. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; STEERING:GEAR BOX:SHAFT SECTOR; STEERING. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE CONDITION IS A NORMAL OPERATING CHARACTERISTIC OF THEIR VEHICLE. A CUSTOMER MAY COMMENT THAT THEY FEEL A STEERING BIND CONDITION WHEN THE CAR IS IN REVERSE, OR DRIVING FORWARD AND THE STEERING WHEEL IS TURNED AT OR NEAR THE FULL-LOCK POSITION.
PIC4986D2016-06-22. Service bulletin. STEERING; POWER TRAIN. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIC4986E2016-06-13. Service bulletin. STEERING. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIC5058B2012-05-02. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. GM: SERVICE POWER STEERING MESSAGE POSSIBLE DTC C0450. *JS
PIC-4986-C2012-02-07. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR. CADILLAC: VEHICLE MAY EXPERIENCE A BINDING OR EXCESSIVE TIGHTNESS CONDITION SIMILAR TO BEING IN 4WD WHEN STEERING WHEEL IS IN FULL LOCK POSITION EITHER DRIVING FORWARD OR REVERSE. *PE UPDATED ON 6/26/2013. *KB
PIC-50582009-03-12. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM; STEERING:HYDRAULIC POWER ASSIST SYSTEM. GENERAL MOTOR: SERVICE POWER STEERING-C0450 (INSP HARNESS NEAR CYLINDER HEAD). THE CAUSE MAY BE ENGINE WIRE HARNESS IS CHAFING ON THE RIGHT CYLINDER HEAD. *PE UPDATED 11/04/09. *PE UPDATED ON 5/1/12. *JS
08-02-35-0022008-05-20. Service bulletin. STEERING:COLUMN. POWER TILT/TELESCOPE STEERING COLUMN INOPERATIVE, DTC B2860/B2880 SET (REPLACE STEERING COLUMN TILT WHEEL POSITION SENSOR). *NJ

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.