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: Torque converter are shown. Show all
| PIP5144B | 2017-08-15. 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. |
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| PIP5144C | 2017-03-15. 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.