WenmarOpen by Wenmar Pro

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: Equipment and accessories are shown. Show all

Bulletins, newest first
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.
09-00-89-002L2018-05-21. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ENGINE. This informational bulletin provides information to dealership personnel on properly maintaining vehicles in dealer inventory.
03-06-03-003E2018-05-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information on ACDelco® replacement battery warranty procedures.
03-00-89-006L2018-05-21. Service bulletin. EQUIPMENT. This informational bulletin provides dealership personnel with information on new vehicle Pre-Delivery Inspection (PDI) process and to encourage delivering quality vehicles and generating higher CSi scores.
01-08-51-003E2018-05-21. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE. This informational bulletin provides recommendations and product information for application of anti-corrosion materials
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-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.
06-08-47-001M2018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This information bulletin explains the labor operation numbers used for submitting warranty claims and how to setup, and reprogram modules.
16-NA-3892018-05-21. Service bulletin. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin provides a procedure to reprogram the FVCM if the battery has issues that are related to the front camera module.
16-NA-3872018-05-21. Service bulletin. EQUIPMENT; SEATS:FRONT ASSEMBLY:HEAD RESTRAINT; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides a procedure to correctly install the j-clips that might have been installed incorrectly during PDI causing a rattle or buzz noise or the rear wheel house liners loose or falling off.
16-NA-3862018-05-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT. This technical bulletin provides repair information to correct a customer concern of loss of driver and/or passenger front HVAC floor duct airflow, or hearing a popping noise from IP area.
16-NA-3702018-05-21. Service bulletin. EQUIPMENT; VISIBILITY:SUN/MOON ROOF ASSEMBLY. This technical bulletin provides sunroof noise repair information to correct various customer concerns of hearing a rattle, creak, tick, and/or double click noise during sunroof operation.
16-NA-1072018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Technical Bulletin provides a fix to reprogram the radio for vehicles that may experience any of the following conditions: DTC U0184 Set, Radio Inoperative, Blue Screen, AM Clipping Noise, HD On/Off Status Not Retained in Stations, Time Lag on Transitions, No Audio with Internal Amp, Park Assist Symbol Position Wrong in Rear View Camera
03-06-03-004N2018-05-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin provides information to dealership personnel regarding warranty codes generated by EL-50313 Midtronics GR8 Battery Tester/Charger required for claim processing on labor operations 4041510, 4041520 and 250 mile/400 km labor operation restriction (North America ONLY).
PIC6296A2018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT. This Preliminary Information communication provides information to the technician that when scanning a vehicle for Diagnostic Trouble Codes, may find a temporary loss of Human Machine Interface communication with Global Diagnostic System 2. Technician should not replace the Human Machine Interface for this concern, power cycling of the Human Machine Interface fuse should restore communication. Technician should be advised that the Human Machine Interface and Global Diagnostic System 2 interaction concern has been reported to engineering for root cause and correction.
PIC62982018-05-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary information communicates to the dealer technician a check procedure to perform if complaint of loss of airflow on 2016 - 2018 Cadillac CT6 and to contact GM technical assistance if the evaporator is confirmed to be freezing.
PIC5932B2018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL. 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.
PIP5493C2018-05-21. Service bulletin. ENGINE; EQUIPMENT:MECHANICAL. This Preliminary information communicates diagnostic tips for misfires on active fuel management cylinders and engineering investigations into cylinder 6 misfire on XT5 and cylinder 4 misfire on LaCrosse both of which are 2017.
17-NA-1702018-05-21. Service bulletin. EQUIPMENT. This informational bulletin explains the Road Force balancers and what they can do for customer concerns.
17-NA-1572018-05-21. Service bulletin. EQUIPMENT; ENGINE. This informational bulletin explains the difference in oil filters and the possibilities of what may happen using the incorrect filter.
16-NA-3832018-05-21. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up.
16-NA-3002018-05-21. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER; EQUIPMENT. This Technical bulletin provides a procedure to reprogram the BCM with latest calibrations to correct a concern of an inoperative heated ventilated seat/Indicator light and power sounder alarm not canceling.
11-00-89-004B2018-05-21. Service bulletin. EQUIPMENT. This warranty administration bulletin provide policy information on the change in product field action customer reimbursement procedure.
04-06-04-051E2018-05-21. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. This informational bulletin provides information for maintenance cleaning of the fuel injectors.
01-03-10-003M2018-05-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; TIRES; EQUIPMENT. This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (Base Warranty Coverage). For vehicles within this warranty period, defective tires will be replaced on a pro rata adjustment basis according to the published distance-based schedule.

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