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Service bulletins for the 2016 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.

1371 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
PIT5353B2017-11-14. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles. A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.
PIC6265B2017-11-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates thata vehicle may exhibit a Adaptive Cruise Control Unavailable and/or Lane Keep Assist Unavailable message. The technician may attempt to program the Active Safety Control Module (ASCM) and encounter a code E4399. The technician is advised if he encounters this concern to zero the MIC counter by placing the vehicle into and back out of "Transport Mode".
PIP5313C2017-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication advises the technician that the E80 Engine Control Module part numbers 12669908 or 12672502 have been placed on part restriction by General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance Center for further assistance.
PIT5236H2017-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will use Global Diagnostic System 2 to review the Firmware Over-the-Air version and the OnStar Customer Identifier and contact General Motors Technical Assistance Center for further assistance.
PIC6201A2017-10-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides the technician with the steps needed to diagnose and repair a vehicle with Wi-Fi or Bluetooth inoperative or poor performance concern. Technician will need to obtain data from Global Diagnostics Services 2 and call General Motors Technical Assistance Center for further assistance. Technician should be advised that concern only applies to OnStar Wi-Fi Regular Production Option Code (VV4) and Bluetooth Regular Production Option Code (UPF).
PIC6216A2017-10-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles voice recognition inoperative for calling Bluetooth phone contacts. Technician will need to Clear All Private Data and repair any phones that were deleted.
16-NA-3212017-10-15. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This technical bulletin explains to check a RKE transmitter battery first before replacing and advised the customer that placing the RKE within 16ft may cause the vehicle to keep the RKE Transmitter awake.
16-NA-0422017-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on GM offering the Android Auto feature upgrade for 2016 and 2017 model year vehicles and how to proceed with reprogramming the vehicles to include this application for use.
07-08-49-020K2017-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin explains the programming method quick reference guide for the IPC Odometer.
10-00-89-005F2017-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:WIRING. This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information.
PIC5588D2017-10-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician on the programming and activation of the OnStar system. For many 2008 and prior model year GM vehicles, the programming is performed using the Tech 2 and the activation is initiated by a Service Programming System. For the 2010 and UP model year vehicles, the OnStar set-up procedure and OnStar Activation request have been combined into a single programming event called OnStar Set-up and Activation in Service Programming System.
PIP5306F2017-10-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication advises the technician that the Product Quality Center has a part restriction for E82 engine control module Restriction Part Number 12659078. Dealer will have to call General Motors Product Quality Center for further assistance. Restriction has ended as of 6/3/2017and PI updated to reflect this.
08-08-44-015F2017-08-31. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This informational bulletin provides Information on Inappropriate Warranty Claims Submitted for Damaged Radios and Instrument Panel Clusters (IPCs)
11-08-49-001U2017-08-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the transport mode message on and off.
07-08-49-020L2017-08-31. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
03-08-46-004S2017-08-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on OnStar® VCIM is currently restricted parts. By working closely with our dealers and technicians, through the part restriction process, the General Motors team will gain a better understanding of any field concerns that may develop.
PIC61072017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about being unable to receive OnStar ?Over The Air? updates. Technician will need to press the OnStar button and verify they have an active account and that the call connects with data and location.
PIC6049D2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication advises the technician that on November 18th, 2014, part number 23248791 (Wireless Charging Module) will be placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
PIC5953B2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
PIC6216B2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles voice recognition inoperative for calling Bluetooth phone contacts. Technician will need to Clear All Private Data and re-pair any phones that were deleted.
PIT5389B2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to contact General Motors Technical Assistance Center with the scan tool data from the OnStar system.
PIC5932A2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about customers that may complain of various concerns when using Bluetooth components. Technician should use the Preliminary Information to gather information from the customer on their Bluetooth device and the concern they are having before calling General Motors Technical Assistance Center.
PIP53062017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication advises the technician that Product Quality Center has a part restriction for E82 engine control module Restriction Part Number 12659039. Dealer will have to call General Motors Product Quality Center for further assistance.
PIE03652017-08-15. Service bulletin. ELECTRICAL SYSTEM. This engineering information bulletin is requesting information from the dealers on a customer concern that one of the USB ports is not charging, allowing data to transfer.
PI1520B2017-08-15. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This informational bulletin provides information on the need to perform a Battery Sensor Module learn procedure after a stop/start system repair or after any repair where the 12V battery negative cable has been disconnected.

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