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Service bulletins for the 2015 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.

1797 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
PIC60422018-05-07. Service bulletin. STEERING. This Preliminary Information communication provides information to the technician about vehicles that if replacement of either shift paddle is necessary, the steering wheel does not need to be replaced nor does it need to be removed to replace either shift paddle.
PIC61332018-01-22. Service bulletin. STEERING. This Preliminary Information communication advises the technician to check the intermediate steering shaft boot for being out of position at the cowl if there is a complaint of excessive road or engine noise in the passenger compartment. Most of the time this boot is out of position, reposition the boot and ensure it is fully seated and reevaluate for the concern.
PIC6042A2017-12-14. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; STEERING. This Preliminary Information communication provides information to the technician about vehicles that if replacement of either shift paddle is necessary, the steering wheel does not need to be replaced nor does it need to be removed to replace either shift paddle.
PIC6025C2017-12-14. Service bulletin. STEERING. This Preliminary Information communication provides the technician with a diagnostic tip for vehicles with intermittent no crack with a "Turn Steering Wheel Start Vehicle Again". If there is a Diagnostic Trouble Code B305A stored history in the Body Control Module it may have been caused by a bound up steering wheel. Review the owner’s manual Starting the Vehicle Messages section with the customer.
16-NA-1092017-08-31. Service bulletin. STEERING. This technical 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.
PIC6048A2017-08-15. Service bulletin. STEERING; LANE DEPARTURE: ASSIST; POWER TRAIN. This Preliminary Information communication advises the technician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from the steering wheel. No Chimes or haptic in the seat. Lane Keep Assist icon is flashing amber; Forward Camera Module is actively commanding torque to Electronic Power Steering. This will also be accompanied with Lane Departure Warning chimes and haptic in the seat feedback based on the setting chosen in the vehicle settings. This will take place when the vehicle has crossed lane marking by (40 cm) or (15.75 in).
PIC6048F2017-08-15. Service bulletin. STEERING; LANE DEPARTURE; POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary Information communication advises the technician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from the steering wheel. No Chimes or haptic in the seat. Lane Keep Assist icon is flashing amber; Forward Camera Module is actively commanding torque to Electronic Power Steering. This will also be accompanied with Lane Departure Warning chimes and haptic in the seat feedback based on the setting chosen in the vehicle settings. This will take place when the vehicle has crossed lane marking by (40 cm) or (15.75 in).
PIC60482017-08-15. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE; STEERING; POWER TRAIN. This Preliminary Information communication advises the technician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from the steering wheel. No Chimes or haptic in the seat. Lane Keep Assist icon is flashing amber; Forward Camera Module is actively commanding torque to Electronic Power Steering. This will also be accompanied with Lane Departure Warning chimes and haptic in the seat feedback based on the setting chosen in the vehicle settings. This will take place when the vehicle has crossed lane marking by (40 cm) or (15.75 in).
PIC6048G2017-08-15. Service bulletin. LANE DEPARTURE; ELECTRICAL SYSTEM; STEERING. This Preliminary Information communicates to thetechnician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from the steering wheel. No Chimes or haptic in the seat. Lane Keep Assist icon is flashing amber; Forward Camera Module is actively commanding torque to Electronic Power Steering. This will also be accompanied with Lane Departure Warning chimes and haptic in the seat feedback based on the setting chosen in the vehicle settings. This will take place when the vehicle has crossed lane marking by (40 cm) or (15.75 in).
PI15232017-08-15. Service bulletin. STEERING:LINKAGES:ARM:IDLER AND ATTACHMENT. This preliminary informational bulletin provides repair information to correct a customer concern of a rough idle while vehicle is in gear.
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.
16-NA-0912017-08-15. Service bulletin. STEERING; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to reprogram the steering column lock module for vehicles that have the condition of service column lock message displayed due to an internal calibration concern within the module
PIC60252017-08-15. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR; STEERING:COLUMN; STEERING. This Preliminary Information communication provides information to the technician about vehicles that has an intermittent no crank with a "Turn Steering Wheel Start Vehicle Again" message. If the steering is bound up so the column lock cannot retract when the vehicle start button is pressed the Body Control Module will not allow the vehicle to start. Dealer should review the owner's manual description for this message in the Starting the Vehicle Messages section which states: "TURN STEERING WHEEL START VEHICLE AGAIN" with the customer.
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.
PIC5784A2017-08-15. Service bulletin. STEERING:COLUMN LOCKING:ANTI-THEFT DEVICE; STEERING. This Preliminary Information communication provides information to the technician about vehicles that may have a grunt or buzz noise heard from the steering column area when the Ignition is turned on and again when the Ignition is turned off and the driver door is opened. Technician will need to have the Steering Column Lock actuator several times while listening to the column lock actuator cycle. Technician will replace the Steering Column Lock actuator if the locking is much louder the unlocking.
PIC6073C2017-05-05. Service bulletin. STEERING. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT THE MEDIA ORIENTED SYSTEMS TRANSPORT BUS DIAGNOSTIC TOOL KIT (EL-51578) HAS BEEN RELEASED TO HELP DIAGNOSE ANY OF THE MEDIA ORIENTED SYSTEMS TRANSPORT BUS CONCERNS. THE KIT CONTAINS HEADER CONNECTORS THAT ARE INSTALLED TO BYPASS MEDIA ORIENTED SYSTEMS TRANSPORT BUS MODULES. THE BYPASS CONNECTOR ALSO CONTAINS A TERMINAL FOR VERIFYING MEDIA ORIENTED SYSTEMS TRANSPORT CONTROL CIRCUIT VOLTAGES. TECHNICIAN SHOULD REVIEW MEDIA ORIENTED SYSTEMS TRANSPORT BUS DESCRIPTION AND OPERATION AND DIAGNOSTIC TROUBLE CODE U0028 DIAGNOSTIC PROCEDURES.
PIC6048B2017-03-17. Service bulletin. EQUIPMENT; SEATS; STEERING:ELECTRIC POWER ASSIST SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT SOME CUSTOMER MAY COMMENT ON THE OPERATION OF THEIR HAPTIC SEAT DURING A LANE KEEP ASSIST EVENT. LANE KEEP ASSIST WORKS DIFFERENTLY THAN LANE DEPARTURE WARNING. THE LANE KEEP ASSIST ICON IS SOLID AMBER, FORWARD CAMERA MODULE IS ACTIVELY COMMANDING A TORQUE TO ELECTRONIC POWER STEERING. THIS MEANS THAT THE DRIVER SHOULD ALSO FEEL SOME FEEDBACK FROM THE STEERING WHEEL. NO CHIMES OR HAPTIC IN THE SEAT. LANE KEEP ASSIST ICON IS FLASHING AMBER; FORWARD CAMERA MODULE IS ACTIVELY COMMANDING TORQUE TO ELECTRONIC POWER STEERING. THIS WILL ALSO BE ACCOMPANIED WITH LANE DEPARTURE WARNING CHIMES AND HAPTIC IN THE SEAT FEEDBACK BASED ON THE SETTING CHOSEN IN THE VEHICLE SETTINGS. THIS WILL TAKE PLACE WHEN THE VEHICLE HAS CROSSED LANE MARKING BY (40 CM) OR (15.75 IN).
PIC-6025-A2016-08-25. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR; STEERING. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH A DIAGNOSTIC TIP FOR VEHICLES WITH INTERMITTENT NO CRACK WITH A "TURN STEERING WHEEL START VEHICLE AGAIN". IF THERE IS A DIAGNOSTIC TROUBLE CODE B305A STORED HISTORY IN THE BODY CONTROL MODULE IT MAY HAVE BEEN CAUSED BY A BOUND UP STEERING WHEEL. REVIEW THE OWNER’S MANUAL STARTING THE VEHICLE MESSAGES SECTION WITH THE CUSTOMER.
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.
SB-16-NA-1092016-08-06. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. "THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO INSPECT THE STEERING GEAR FOR A NORMAL CONDITION OF GREASE OR SEALANT ON EXTERIOR CASE OF GEAR DUE TO THE MANUFACTURING PROCESS."
15-NA-0462016-06-22. Service bulletin. STEERING. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIC4986E2016-06-13. Service bulletin. STEERING. SUMMARY TO BE PROVIDED ON A FUTURE DATE.

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