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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

Bulletins, newest first
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.
PIC62962018-05-21. Service bulletin. ELECTRICAL SYSTEM. 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.
PIE0400A2018-05-21. Service bulletin. ENGINE. This engineering informational bulletin is ending the need for information from the field on vehicles that have the condition of Oil Leak Between Upper and Lower Oil Pan.
PI1520D2018-05-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This preliminary information advises the technician to perform a battery sensor module learn if the battery has been disconnected.
PI1410B2018-05-21. Service bulletin. PARKING BRAKE. This preliminary informational bulletin provides information regarding the normal characteristic of instrument panel red brake light intermittently comes on.
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.
17-NA-1532018-05-21. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE. This informational bulletin provides information and operating tips for the hands free lift gate.
17-NA-0662018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow test.
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.
11-08-49-001T2018-05-21. Service bulletin. ELECTRICAL SYSTEM. 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.
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.
06-08-64-001D2018-05-21. Service bulletin. VISIBILITY:GLASS, SIDE/REAR; STRUCTURE:BODY:DOOR. This Informational bulletin describes warranty part reviews where door glass had chips or scratches.
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.
00-03-10-003V2018-05-21. Service bulletin. TIRES; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This warranty administration bulletin provides information on The tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty.
15-NA-0872018-05-21. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin advises the technician to rest the MIL and diagnose additional DTCs for why the code is setting and disabling the start/stop system.
05-00-89-029D2018-05-21. Service bulletin. EQUIPMENT. This informational bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.
04-00-89-015O2018-05-21. Service bulletin. EQUIPMENT. This warranty administration bulletin provide policy information on required operating procedures.
03-00-89-006N2018-05-21. Service bulletin. EQUIPMENT. This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores.
00-06-01-012G2018-05-21. Service bulletin. ENGINE. This informational bulletin advises the possible issues that may occur using a scotch brite pad or highly abrasive disk on engine surfaces.
00-03-10-002K2018-05-21. Service bulletin. WHEELS. This informational bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels.
18NA1412018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL. This informational bulletin provides information on Audio Volume Stuck High or Low with No DTCs and that this is a normal characteristic.
18NA1252018-05-21. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information for engine oil life monitor operation calculation.

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