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Service bulletins for the 2016 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.

1669 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
15-06-01-002D2017-05-25. Service bulletin. ENGINE AND ENGINE COOLING. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE VALVE LIFTER OIL MANIFOLD AND THE LIFTERS TO CORRECT THE CUSTOMERS CONCERN OF ENGINE MISFIRE, TICK NOISE AND MIL ON.
PIT5384B2017-05-24. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE THE ONSTAR WIRELESS FIDELITY INOPERATIVE. TECHNICIAN WILL NEED TO CONTACT GENERAL MOTORS TECHNICAL ASSISTANCE CENTER WITH A SCAN TOOL CONNECT TO THE VEHICLE FOR FURTHER ASSISTANCE.
PIP54242017-05-19. Service bulletin. ELECTRICAL SYSTEM; ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT THE ENGINE MAY SHUT OFF AFTER WIDE OPEN THROTTLE MANEUVERS ALSO THE SERVICE ENGINE SOON MALFUNCTION INDICATOR LAMP ON. TECHNICIAN MAY FIND DIAGNOSTIC TROUBLE CODES P0121, P2101 AND P2119 SET. DEALER SHOULD COMMUNICATE TO THE CUSTOMER NOT TO DRIVE THE VEHICLE AGGRESSIVELY ON TRACK LIKE CONDITIONS. DEALER SHOULD ALSO ADVISE THE CUSTOMER ENGINEERING WORKING ON FIX TO ADDRESS THIS ISSUE.
PIP54232017-05-19. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A SERVICE ENGINE SOON MALFUNCTION INDICATOR LAMP ON. TECHNICIAN MAY FIND DIAGNOSTIC TROUBLE CODES P0106 AND P0506. TECHNICIAN WILL INSPECT FOR A BROKEN VALVE SPRING AND REPLACE AS NEEDED.
PIP5319D2017-05-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT SOME VEHICLES MAY HAVE A RATTLE COMING FROM THE TURBO ON A COLD START. IF THE TECHNICIAN HAS VERIFIED THE RATTLE NOISE WHEN COLD IS FROM THE TURBOCHARGER, AND THE NOISE IS UNFORCED, THERE IS A REVISED PART AVAILABLE FOR THIS CONCERN.
PIP5282A2017-05-18. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ABOUT THE CALCULATION AND OPERATION OF THE ENGINE OIL LIFE MONITOR. THE MONITOR CALCULATES THE PERCENT OF OIL LIFE REMAINING, BASED ON 3 PATHWAYS. THE FIRST PATHWAY FOR OIL LIFE CALCULATION IS ENGINE REVOLUTIONS. THE SECOND PATHWAY FOR OIL LIFE CALCULATION IS THE MILEAGE FORM THE LAST REST FOR ALL GENERAL MOTORS POWERTRAINS EXCEPT THE VOLT. THE THIRD PATHWAY FOR OIL LIFE CALCULATION IS THE AMOUNT OF TIME THE OIL IS IN THE ENGINE. THE VOLT USES A 2 YEAR TIMER INSTEAD OF 1 YEAR. IT ALSO USES THE ENGINE REVOLUTION COUNTER. IT DOES NOT USE THE MILEAGE PATHWAY TO COUNT DOWN.
PIP5159B2017-05-17. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A SERVICE ENGINE SOON MALFUNCTION INDICATOR LAMP ON AND DIAGNOSTIC TROUBLE CODE P0300 - P0308 MAY SET. TECHNICIAN WILL INSPECT FOR LOSE SPARKPLUG WIRE. IF A SPARK PLUG WIRE IS FOUND LOSE CHECK FOR A MISSING “C” CLIP ON THE WIRE END FOR THE IGNITION COIL. IF THE CLIP IS MISSING REPLACE THE WIRE.
PIC62202017-05-15. Service bulletin. BACK OVER PREVENTION: CAMERA SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES WITH AN INTERMITTENT LOSS OF GRIDLINES IN THE REAR CAMERA DISPLAY SCREEN AND A "SERVICE REAR VISION SYSTEM" MESSAGE THAT BOTH HAPPEN AT THE SAME TIME. TECHNICIAN SHOULD CHECK FOR DIAGNOSTIC TROUBLE CODES AND FOLLOW PUBLISHED SERVICE INFORMATION DIAGNOSTICS FOR THE DIAGNOSTIC TROUBLE CODES. IF NOT DIAGNOSTIC TROUBLE CODES STORED AND THE CONCERN WAS DUPLICATED OR THE CUSTOMER DESCRIBED THE CONCERN, DEALER SHOULD COMMUNICATE TO THE CUSTOMER THAT WE APOLOGIZE FOR THIS INCONVENIENCE AND THAT GENERAL MOTORS IS CURRENTLY EVALUATING THIS CONCERN.
PIC62162017-05-15. 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.
PIC6193B2017-05-05. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT THE RADIO WILL NOT SAVE XM FAVORITES. TECHNICIAN WILL NEED TO REPLACE THE RADIO TO ADDRESS THE CONCERN.
PIC6177A2017-05-05. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH INFORMATION ON VEHICLES WITH NAVIGATION RADIO REGULAR PRODUCTION OPTION CODE IO6 OR UY4 THAT DEFAULTS TO WEST VIRGINIA INSTEAD OF VIRGINIA ON A MANUAL ENTRY. GENERAL MOTORS ENGINEERING IS CURRENTLY WORKING ON A SOLUTION FOR THIS CONCERN.
PIC6104B2017-05-05. Service bulletin. EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE THE LOWER CENTER SECTION OF THE DISPLAY WILL NOT WORK WHEN PRESSED. TECHNICIAN WILL NEED TO REPLACE THE INTEGRATED CENTER STACK FOR THIS CONCERN.
PIC6086B2017-05-05. Service bulletin. VISIBILITY:WINDSHIELD. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH STEPS TO RESOLVE THE ISSUE OF AN OILY SUBSTANCE THAT MAY BE FOUND ON THE INSIDE WINDSHIELD SURFACE, AND APPEARS TO BE LEAKING FROM THE REAR VIEW MIRROR AREA. TECHNICIAN WILL REMOVE THE MOISTURE SENSOR AND CLEAN THE GLASS AND MOUNTING BRACKET WITH ALCOHOL WIPE. IF THE GEL SEPARATES FROM THE SENSOR THE SENSOR WILL NEED TO BE REPLACED.
PIC6073C2017-05-05. Service bulletin. STEERING. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT THE MEDIA ORIENTED SYSTEMS TRANSPORT BUS DIAGNOSTIC TOOL KIT (EL-51578) HAS BEEN RELEASED TO HELP DIAGNOSE ANY OF THE MEDIA ORIENTED SYSTEMS TRANSPORT BUS CONCERNS. THE KIT CONTAINS HEADER CONNECTORS THAT ARE INSTALLED TO BYPASS MEDIA ORIENTED SYSTEMS TRANSPORT BUS MODULES. THE BYPASS CONNECTOR ALSO CONTAINS A TERMINAL FOR VERIFYING MEDIA ORIENTED SYSTEMS TRANSPORT CONTROL CIRCUIT VOLTAGES. TECHNICIAN SHOULD REVIEW MEDIA ORIENTED SYSTEMS TRANSPORT BUS DESCRIPTION AND OPERATION AND DIAGNOSTIC TROUBLE CODE U0028 DIAGNOSTIC PROCEDURES.
PIC6048E2017-05-05. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT SOME CUSTOMERS MAY COMMENT ON THE OPERATION OF THEIR HAPTIC SEAT DURING A LANE KEEP ASSIST EVENT. LANE KEEP ASSIST WORKS DIFFERENTLY THAN LANE DEPARTURE WARNING. THE LANE KEEP ASSIST ICON IS SOLID AMBER, FORWARD CAMERA MODULE IS ACTIVELY COMMANDING A TORQUE TO ELECTRONIC POWER STEERING. THIS MEANS THAT THE DRIVER SHOULD ALSO FEEL SOME FEEDBACK FROM THE STEERING WHEEL. NO CHIMES OR HAPTIC IN THE SEAT. LANE KEEP ASSIST ICON IS FLASHING AMBER; FORWARD CAMERA MODULE IS ACTIVELY COMMANDING TORQUE TO ELECTRONIC POWER STEERING. THIS WILL ALSO BE ACCOMPANIED WITH LANE DEPARTURE WARNING CHIMES AND HAPTIC IN THE SEAT FEEDBACK BASED ON THE SETTING CHOSEN IN THE VEHICLE SETTINGS. THIS WILL TAKE PLACE WHEN THE VEHICLE HAS CROSSED LANE MARKING BY (40 CM) OR (15.75 IN).
PIC5491J2017-05-02. Service bulletin. ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE AN ONSTAR SYSTEM THAT WILL NOT POWER UP. TECHNICIAN SHOULD TURN OFF THE IGNITION AND CANCEL RETAINED ACCESSORY POWER. AFTER THE VEHICLE HAS POWERED DOWN REMOVE POWER TO THE ONSTAR MODULE FOR FIVE MINUTES. AFTER THE POWER HAS BEEN REMOVED FOR FIVE MINUTES, IF THE ONSTAR SYSTEM IS WORKING RELEASE THE VEHICLE. IF THE ONSTAR SYSTEM IS STILL INOPERATIVE CONTINUE WITH PUBLISHED SERVICE INFORMATION DIAGNOSTICS.
16-NA-1112017-04-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO INSPECT THE AIR BOX AND AIR FILTER SEAL AND REPLACE IF NECESSARY TO CORRECT A CUSTOMER CONCERN THAT THE MALFUNCTION INDICATOR LIGHT (MIL) IS ILLUMINATED DUE TO EXCESSIVE SAND AND/OR DEBRIS ENTERING THE AIR FILTER BOX AND BYPASSING THE SEAL OF THE AIR FILTER CAUSING DAMAGE TO THE HO2 SENSOR AND THE CATALYTIC CONVERTER TO BECOME BLOCKED WITH SAND AND DEBRIS PARTICLES.
16-NA-0142017-04-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE STATOR SHAFT SUPPORT TO CORRECT CUSTOMER CONCERN ON A DELAYED ENGAGEMENT WHEN THE TRANSMISSION IS SHIFTED FROM PARK TO REVERSE OR PARK TO DRIVE AFTER THE VEHICLE HAS BEEN SITTING WITH THE ENGINE OFF DUE TO THE TORQUE CONVERTER DRAINING THE TRANSMISSION FLUID BACK INTO THE TRANSMISSION PAN.
PIT4720D2017-03-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT AFTER REPLACING THE INSTRUMENT PANEL CLUSTER THE EXCHANGE CENTER IS UNABLE TO PROGRAM THE ACTUAL MILEAGE ON THE ODOMETER OR THE ACTUAL MILEAGE IS UNKNOWN. DEALER WILL NEED TO FOLLOW DEALER TO THE GENERAL MOTORS SERVICE POLICIES AND PROCEDURES MANUAL SECTION 5.2.4 ODOMETER SERVICING.
PIP5319C2017-03-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT SOME VEHICLES MAY HAVE A RATTLE COMING FROM THE TURBO ON A COLD START. IF THE TECHNICIAN HAS VERIFIED THE RATTLE NOISE WHEN COLD IS FROM THE TURBOCHARGER, AND THE NOISE IS UNFORCED, THERE IS A REVISED PART AVAILABLE FOR THIS CONCERN.
PIP5248B2017-03-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:MANUAL TRANSMISSION. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE STALLING SHUDDER AND/OR HARD SHIFTING INTO 1ST GEAR OR REVERSE VIBRATION ON LAUNCH (WITH EXCESSIVE CRANKSHAFT END PLAY). TECHNICIAN WILL TEST TO DETERMINE IF THE CRANK SHAFT END PLAY IS WITHIN SPECIFICATION 0.0015–0.0086 INCH. IF END PLAY IS FOUND TO BE OUT OF SPECIFICATION, REMOVE ENGINE AND INSPECT FOR POSSIBLE CRANKSHAFT THRUST BEARING AND/OR CRANKSHAFT FOR WEAR. INSPECT THRUST BEARING FOR WEAR ON ONE SIDE AND CRANKSHAFT ON THAT “MATING” SURFACE. IF THE THRUST BEARING HAS THREE VERTICAL CHANNELS WORN OFF REPLACE CONNECTING ROD BEARINGS, MAIN BEARINGS, THRUST BEARING AND CRANKSHAFT. IF WORKING ON A CORVETTE THE OIL TANK WITH LINES AND OIL COOLER ARE BOTH REQUIRED TO BE REPLACED IF EQUIPPED.
PIP5226A2017-03-21. Service bulletin. EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT FINDING NEEDLE BEARINGS DURING AN OIL CHANGE. TECHNICIAN WILL GAIN ACCESS TO THE ROLLER ROCKERS TO INSPECT THEM. ONLY REPLACE THE ROLLER ROCKER THAT IS MISSING NEEDLE BEARINGS. BE SURE TO CLEAN THE OIL DRAINS TO RETRIEVE THE NEEDLE BEARINGS. EACH ROLLER ROCKER HAS 66 BEARINGS.
PIC61702017-03-17. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN WITH THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLE THAT MAY HAVE A CONCERN WITH NAVIGATION ICON NOT SHOWING THE CORRECT LOCATION THEN JUMPING TO THE CORRECT LOCATION. THE POSITION INDICATOR MAY SHOW THE VEHICLE TURNING IN THE OPPOSITE DIRECTION OR MAY SHOW THE VEHICLE TRAVELING OFF THE ROAD. TECHNICIAN WILL INSPECT THE HUMAN MACHINE INTERFACE MOUNTING. FOLLOW SERVICE INFORMATION FOR THE CORRECT ORIENTATION OF THE HUMAN MACHINE INTERFACE.
PIC6167A2017-03-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; PARKING BRAKE. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN DURING A PARALLEL PARKING MANEUVER, THE VEHICLE WILL PARK BETWEEN CARS BUT ONLY SLIGHTLY INTO THE SPOT. ALSO DURING A PERPENDICULAR PARKING MANEUVER, THE SYSTEM MAY INDICATE AN OPEN PARKING SPACE BUT TRY TO PARK NEXT TO THE OPEN SPOT. DEALER SHOULD REPROGRAM THE K182 PARK ASSIST CONTROL MODULE WITH THE LATEST CALIBRATION.
PIC6048B2017-03-17. Service bulletin. EQUIPMENT; SEATS; STEERING:ELECTRIC POWER ASSIST SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT SOME CUSTOMER MAY COMMENT ON THE OPERATION OF THEIR HAPTIC SEAT DURING A LANE KEEP ASSIST EVENT. LANE KEEP ASSIST WORKS DIFFERENTLY THAN LANE DEPARTURE WARNING. THE LANE KEEP ASSIST ICON IS SOLID AMBER, FORWARD CAMERA MODULE IS ACTIVELY COMMANDING A TORQUE TO ELECTRONIC POWER STEERING. THIS MEANS THAT THE DRIVER SHOULD ALSO FEEL SOME FEEDBACK FROM THE STEERING WHEEL. NO CHIMES OR HAPTIC IN THE SEAT. LANE KEEP ASSIST ICON IS FLASHING AMBER; FORWARD CAMERA MODULE IS ACTIVELY COMMANDING TORQUE TO ELECTRONIC POWER STEERING. THIS WILL ALSO BE ACCOMPANIED WITH LANE DEPARTURE WARNING CHIMES AND HAPTIC IN THE SEAT FEEDBACK BASED ON THE SETTING CHOSEN IN THE VEHICLE SETTINGS. THIS WILL TAKE PLACE WHEN THE VEHICLE HAS CROSSED LANE MARKING BY (40 CM) OR (15.75 IN).

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