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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: Transmission and driveline are shown. Show all

Bulletins, newest first
PIP5144B2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This Preliminary Information communication advises the technician that the Aisin TL80SN 8 Speed 81-40LE Transmission Assembly, Torque Converter, Valve Body and Transmission Control Module are on restriction through General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
16-NA-0142017-04-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE STATOR SHAFT SUPPORT TO CORRECT CUSTOMER CONCERN ON A DELAYED ENGAGEMENT WHEN THE TRANSMISSION IS SHIFTED FROM PARK TO REVERSE OR PARK TO DRIVE AFTER THE VEHICLE HAS BEEN SITTING WITH THE ENGINE OFF DUE TO THE TORQUE CONVERTER DRAINING THE TRANSMISSION FLUID BACK INTO THE TRANSMISSION PAN.
PIP5144C2017-03-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE AISIN TL80SN 8 SPEED 81-40LE TRANSMISSION ASSEMBLY, TORQUE CONVERTER, VALVE BODY AND TRANSMISSION CONTROL MODULE ARE ON RESTRICTION THROUGH GENERAL MOTORS PRODUCT QUALITY CENTER. DEALER WILL NEED TO CALL GENERAL MOTORS PRODUCT QUALITY CENTER FOR FURTHER ASSISTANCE.
15584A2017-01-26. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 15584A - SERVICE UPDATE (THE SERVICE PROCEDURE AND WARRANTY TRANSACTION SECTION HAVE BEEN REVISED). THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO INSPECT AND, IF NECESSARY, REPLACE THE TRANSFER CASE OIL DISTRIBUTION TUBE ON CERTAIN VEHICLES. ON SOME VEHICLES, THE TUBE MAY NOT BE FULLY SEATED AND A LEAK COULD DEVELOP.
155842017-01-26. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); EQUIPMENT. 15584 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO INSPECT AND, IF NECESSARY, REPLACE THE TRANSFER CASE OIL DISTRIBUTION TUBE ON CERTAIN VEHICLES. ON SOME VEHICLES, THE TUBE MAY NOT BE FULLY SEATED AND A LEAK COULD DEVELOP.
16-NA-2132017-01-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON TRANSMISSIONS WITH HARSH SHIFTS AFTER MILEAGE ACCUMULATION WITHOUT PREVIOUS REPAIRS AND/OR CALIBRATION UPDATES.
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-1302016-08-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON HOW TO INSPECT THE UPPER VALVE BODY TO DETERMINE THE CORRECT RPO USAGE TO CORRECT A CONCERN THAT AFTER INSTALLATION OF A REPLACEMENT UPPER VALVE BODY, THE TRANSMISSION MAY HAVE NO REVERSE AND NO 2ND GEAR DUE TO THE INSTALLATION OF THE INCORRECT UPPER VALVE BODY.
SB-03-07-29-004K2016-08-06. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. THIS INFORMATIONAL BULLETIN PROVIDE INFORMATION ON THE OPERATING CHARACTERISTICS OF A MANUAL TRANSMISSION.
PI1344B2016-07-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. Some customers may comment that the vehicle has reduced acceleration at low speed and/or transmission is slipping from a launch. Technicians may find DTC P0751 set or stored in history. This condition may be caused by the Clutch Select Solenoid Valve 2 (359), located in the lower valve body, sticking in its bore resulting in a 4th gear start. Note: This condition can be very intermittent and difficult to duplicate.
PI-1448-A2016-02-06. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM. CADILLAC: SOME VEHICLES ARE EXPERIENCING SERVICE TRANSMISSION LIGHT FLASHING, MALFUNCTION INDICATOR LAMP (MIL) ON, VEHICLE NOT SHIFTING CORRECTLY INTO EACH RANGE. MODEL 2014-15 CTS. *PE
SB-08-24-152016-02-04. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER. GENERAL MOTORS: PARTS FOR MOST VEHICLES, CLUTCH, MASTER CYLINDER ASSEMBLY ARE, REQUIRED AND REQUESTED, TO BE RETURNED AND NEED TO REORDER REPLACEMENT PARTS USING SAME PART NUMBERS. *PE
PI-13602015-04-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. GMC/CADILLAC/CHEVROLET: AFTER POSITIONING SHIFT LEVER INTO PARK, IT FAILS TO HOLD AND VEHICLE ROLLS WHEN BRAKE PEDAL IS RELEASED. MODEL 2013-15. ATS, CTS, ESCALADE, AVALANCHE, CAMARO, CORVETTE, EXPRESS, SILVERADO, SUBURBAN, TAHOE, SAVANA, SIERRA, YUKON. *PE UPDATED 2/5/16. *PE UPDATED 2/12/16. *PE

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