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Service bulletins for the 2014 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.

2068 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Transmission control module are shown. Show all

Bulletins, newest first
PIP4653E2017-12-22. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN. This Preliminary Information communication provides information to the technician about vehicle that have a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0601, P0603, P0604, P062F or P1621 stored in the Transmission Control Module. Technician will need to ensure that the Diagnostic Trouble Codes are set in the Transmission Control Module. If the Diagnostic Trouble Codes are only set in the Transmission Control Module reprogram the Transmission Control Module.
PIC59352017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that the hazard switch does not activate during the first press. Dealer should advise the customer that vehicles built after 10/11/2013 or for vehicles built prior to 10/11/2013 in which the Body Control Module has been reprogrammed, please communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIP52232017-08-15. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This Preliminary Information communication advises the technician that the Engine Control Module part number 12662034 is on restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
PIP5109F2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE. This Preliminary Information communication advises the technician that the Engine Control Module part number 12656993 and 12662034 placed on restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
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.
PIP5209A2017-08-15. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This Preliminary Information communication provides information to the technician about vehicles that have Diagnostic Trouble Code P00C6 and/or P228C set. Technician will need to inspect the terminals at the Engine Control Module for fit and tension as well as the crimp to wire connection. Terminals to inspect in the ECM are connector x2 terminals 3, 18, and 19 for the fuel rail pressure sensor. Also connector x3 terminals 16 and 32 for the high pressure fuel pump.

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