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Service bulletins for the 2017 Cadillac CT6

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.

1316 on file from NHTSA, as of 2026-10-19.

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By component

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Bulletins, newest first
16NA3892018-06-04. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides a procedure to reprogram the FVCM if the battery has issues that are related to the front camera module.
16NA3562018-06-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. This technical bulletin provides a procedure to clear the codes and re-evaluate the XM radio channels to correct a condition of audio muting when listening to some Sirius XM channels but if they change channels they will find others that experience normal audio. This could be due to interference from transmitting sources outside of Sirius XM?s frequency range.
16NA1582018-06-04. Service bulletin. EQUIPMENT. This bulletin describes the Dealer special tool loan program process.
070604019F2018-06-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC P2138 set.
040730013D2018-06-04. Service bulletin. POWER TRAIN; ENGINE; EQUIPMENT. This informational bulletin provides information to dealership personnel on automatic transmission shift and engine drivability concerns and/or MIL ON due to aftermarket oil bath air filter use.
010601011J2018-06-04. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
17NA1422018-06-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This informational bulletin provides information on Wireless Charging Module Diagnosis and cell phone compatibility.
PIP4112R2018-05-21. Service bulletin. EQUIPMENT; POWER TRAIN; ENGINE. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to first gear.
PIC62692018-05-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. The Preliminary Information communication advises the technician that the Technical Assistance Center has aParts Restriction for Drive Motor Power Inverter Control Module for the new vehicle launch of the 2017 Cadillac CT6 Plug In Hybrid.The dealer technician is advised to call the GM Technical Assistance Center for further assistance.
PIC62702018-05-21. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). The Preliminary Information communication advises the technician that the Technical Assistance Center has a Parts Restriction for Hybrid Powertrain Control Module 2 for the new vehicle launch of the 2017 Cadillac CT6 Plug In Hybrid. The dealer technician is advised to call the GM Technical Assistance Center for further assistance.
PIC62642018-05-21. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. The Preliminary Information communication advises the technician that the Technical Assistance Center has aParts Restriction for Drive Motor Battery Charger (OBCM) and the charge receptacle for the new vehicle launch of the 2017 Cadillac CT6 Plug In Hybrid.The dealer technician is advised to call the GM Technical Assistance Center for further assistance.
PIC62632018-05-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The Preliminary Information communication advises the technician that the Technical Assistance Center has aParts Restriction for the Accessory Power Module for the new vehicle launch of the 2017 Cadillac CT6 Plug In Hybrid.The dealer technician is advised to call the GM Technical Assistance Center for further assistance.
PIE04002018-05-21. Service bulletin. ENGINE AND ENGINE COOLING. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Oil Leak Between Upper and Lower Oil Pan.
PIE0385B2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This engineering information bulletin ends the need for information from the field on vehicles that have the concern of a noisy water pump.
PI0671A2018-05-21. Service bulletin. STEERING. This preliminary information bulletin provides information for diagnosing a power steering fluid leak at the fluid reservoir.
99-04-20-002J2018-05-21. Service bulletin. SUSPENSION. This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operations.
17-NA-0992018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This bulletin provides a procedure to replace the crankshaft balancer if found the cause of the customers concerns of noises or sparks.
17-NA-0962018-05-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin explains why the brakes are applying in reverse and to not replace parts but wait for a software update.
17-NA-0932018-05-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin has a procedure to reprogram the HPCM to to correct the customers concern.
17-NA-0732018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information with the field action courtesy transportation policy.
17-NA-0672018-05-21. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information on On rare occasions, a security code input message with SPS error code E5659, M5304, and/or M5530 may be displayed in TIS2web when the technician is programming any module. If this concern is encountered, the technician should start by ensuring that the module being programmed is not a used module and that the VIN matches on VIN plate, TIS2web programming screen, and GDS2 module identification information screen.
17-NA-0662018-05-21. Service bulletin. POWER TRAIN. This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow test.
17-NA-0402018-05-21. Service bulletin. SERVICE BRAKES. This technical bulletin provides a procedure to apply copper paste to the brake calipers to correct a condition of Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies.
17-NA-0392018-05-21. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides additional information on what oil to use in the 2.0L engines to eliminate the risk of engine/piston failure.
17-NA-0252018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This technical bulletin is providing a procedure to reprogram the HMI module to correct multiple conditions including Waiting for Update Media Message, Voice Command For Calling Bluetooth Phone Contacts Inoperative, Intermittent Loss of Rear Camera Gridlines, Service Rear Vision System Message, Radio Turns On Unwanted At Startup, and/or Navigation Radio Destination State Defaults To WV, Intermittent Radio/display Resets, Volume Control Inoperative.

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