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Service bulletins for the 2015 GMC Sierra

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.

3109 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
G-2082292016-09-28. Service bulletin. STEERING. 14713 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPLACE THE STEERING GEAR ASSEMBLY ON CERTAIN VEHICLES. THE STEERING GEAR ON SOME OF THESE VEHICLES MAY HAVE BEEN ASSEMBLED WITH AN INCORRECT THRUST BEARING. IF NOT CORRECTED, THIS CONDITION COULD CAUSE THE DRIVER TO FEEL LASH (LOOSE / FREE PLAY) IN THE STEERING WHEEL.
G-2085702016-09-28. Service bulletin. STEERING. 14608 - SERVICE UPDATE. THIS BULLETIN PROVIDES A FURTHER SERVICE PROCEDURE TO INSPECT VEHICLES AND REPLACE THE POWER STEERING COOLER ASSEMBLY AS NEEDED ON CERTAIN VEHICLES THAT WERE PREVIOUSLY SERVICED PRIOR TO SEPTEMBER 9, 2014 PURSUANT TO RECALL BULLETIN 14356 (SINCE SUPERSEDED BY BULLETIN 14356A). THESE VEHICLES MAY HAVE BEEN BUILT WITH A HOSE CONNECTION WITHIN THE POWER STEERING COOLER ASSEMBLY THAT IS MISSING THE FERRULE OR FERRULE CRIMP. IF THE VEHICLE IS DRIVEN WITHOUT THE FERRULE OR FERRULE CRIMP, THERE MAY BE A LOSS OF POWER STEERING FLUID.
G-2045632016-09-28. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). 14395 - CUSTOMER SATISFACTION. ON SOME VEHICLES, A PERFORMANCE ISSUE WITH THE ONSTAR® MODULE MIGHT IMPACT THE VEHICLE'S BATTERY LIFE. THIS CAN CAUSE A DEAD BATTERY IF THE VEHICLE IS NOT STARTED FOR APPROXIMATELY 4 DAYS. THIS CONDITION CAN OCCUR EVEN IF THE ONSTAR® SYSTEM IS NOT ACTIVE. DEALERS ARE TO REPLACE THE ONSTAR® MODULE. IF THE CUSTOMER DOES NOT HAVE AN ACTIVE ONSTAR® SUBSCRIPTION, THE ONSTAR® MODULE IS TO BE DEACTIVATED AFTER REPLACEMENT.
G-2033562016-09-28. Service bulletin. EQUIPMENT. 14541 - CUSTOMER SATISFACTION. IF CERTAIN VEHICLES ARE DINGHY TOWED, THEIR TRANSFER CASE MAY BECOME LOCKED IN NEUTRAL WHEN PREPARING TO DISCONNECT THE VEHICLE ACCORDING TO THE PROCEDURES IN THE OWNER MANUAL. SPECIFICALLY, WHEN THE CUSTOMER CONNECTS THE BATTERY AND STARTS THE VEHICLE AS PART OF THE “DISCONNECTING THE TOWED VEHICLE” PROCEDURE (SEE OWNER MANUAL AT STEPS 3, 4, AND 5 OF THE “DINGHY TOWING”), A CODE IS SET THAT LOCKS THE VEHICLE’S TRANSFER CASE IN NEUTRAL. WHEN THIS OCCURS, THE DRIVER’S INFORMATION CENTER PANEL WILL DISPLAY A “SERVICE 4WD” MESSAGE AND THE VEHICLE WILL NEED TO BE TOWED TO A DEALERSHIP TO HAVE THE CODE CLEARED. DEALERS ARE TO PLACE A COPY OF AN UPDATED DINGHY TOWING SUPPLEMENT IN THE OWNER MANUAL. THIS INFORMATION REPLACES THE INFORMATION LOCATED UNDER “RECREATIONAL VEHICLE TOWING” FOUND IN SECTION 10 OF THE OWNER MANUAL. GM WILL MAIL THE SUPPLEMENT TO CUSTOMERS OF RECORD.
G-2019682016-09-27. Service bulletin. ENGINE. 14461 - CUSTOMER SATISFACTION. CERTAIN VEHICLES EQUIPPED WITH THE DURAMAX DIESEL ENGINE MAY HAVE A MAIN ENGINE WIRING HARNESS THAT IS NOT PROPERLY FASTENED AND MAY COME INTO CONTACT WITH A SHARP GASKET TAB USED FOR CONTROLLING EMISSIONS (EGR GASKET VERIFICATION TAB). THE SHARP GASKET TAB CAN CUT INTO THE WIRING HARNESS AND EVEN SEVER WIRES IN THE HARNESS. DEPENDING ON WHICH WIRE IS AFFECTED, YOU MAY RECEIVE A “REDUCED POWER MODE” INDICATOR LIGHT IN THE INSTRUMENT PANEL, OR YOU MAY NOT BE ABLE TO START YOUR VEHICLE. IF YOU ARE UNABLE TO START YOUR VEHICLE, IT MAY NOT RESTART AND WILL NEED TO BE TOWED TO THE NEAREST DEALER. DEALERS ARE TO INSPECT AND/OR REPAIR THE MAIN ENGINE HARNESS FOR CONTACT WITH THE EGR GASKET VERIFICATION TAB. THE EGR VERIFICATION TAB WILL THEN BE MODIFIED TO PREVENT FURTHER CONTACT.
PIT5361B2016-09-27. Service bulletin. SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES; SERVICE BRAKES. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE ISSUES WERE THE CUSTOMER WILL NEED INCREASED EFFORT TO DEPRESS THE BRAKE PEDAL. TECHNICIAN MAY FIND FLUID IN THE BRAKE BOOSTER AND/OR THE BOOSTER VACUUM LINE. TECHNICIAN WILL NEED TO REPLACE VACUUM PUMP, BRAKE BOOSTER, MASTER CYLINDER, VACUUM PUMP BELT AND THE VACUUM LINE BETWEEN THE BOOSTER AND THE PUMP.
PIP5395A2016-09-27. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON HOW TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE RATTLE OR TICKING NOISE THAT IS LOUDER INSIDE THE VEHICLE THAN OUTSIDE. THE NOISE MAY ALSO SOUND LIKE A LIFTER TICK. IF THE NOISE IS HEARD BEST AT THE FUEL LINE AND THE SOUND WILL BE REAL LOUD WITH A STETHOSCOPE. THE FUEL LINE WILL NEED TO BE REPLACED.
PIP5094A2016-09-26. Service bulletin. ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT ,WHEN TESTING ANY CIRCUIT FOR OPEN OR RESISTANCE, IT IS IMPERATIVE THAT ALL RELATED TERMINAL PIN FIT AND TENSION BE CHECKED WHEN THE TEST STEPS REQUIRE DISCONNECTION OF THE CONNECTOR OR COMPONENT, PRIOR TO ANY COMPONENT REPLACEMENT. ALWAYS USE THE RECOMMENDED TERMINAL TEST TOOL DURING THESE TESTS.
SB-140692016-09-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14069 - STOP DELIVERY CANCELLATION (CWNFA). ON FEBRUARY 26, 2014, (27) VEHICLES WERE PLACED ON STOP DELIVERY VIA GLOBALCONNECT MESSAGE G-_0000186344. ON FEBRUARY 28, 2014 (GLOBALCONNECT MESSAGE G_0000186555), (25) OF THE VEHICLES WERE RELEASED FROM STOP DELIVERY WITH NO FURTHER ACTION REQUIRED; HOWEVER, THE 2 VEHICLES REMAINED ON STOP DELIVERY. THE 2 REMAINING VEHICLES LISTED BELOW ARE NOW REMOVED FROM STOP DELIVERY. NO FURTHER ACTION IS REQUIRED.
PIC62102016-09-23. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATES THE PROCEDURE TO THE TECHNICIAN HOW TO REGAIN BLU-RAY/CD/DVD PLAYER FUNCTION ON ALL NEW GENERATION INFOTAINMENT SYSTEMS WITH REGULAR PRODUCTION OPTION CODE U42 OR UWG BLU-RAY PLAYERS. IF THIS CONCERN IS ENCOUNTERED, CYCLE THE CD PLAYER/MEDIA DISC PLAYER FUSE AND RE-EVALUATE THE CONCERN.
PIP54072016-09-21. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON HOW TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE DIAGNOSTIC TROUBLE CODE P06DD OR NO OR LOW OIL PRESSURE. TECHNICIAN WILL REPLACE TIMING CHAIN TENSIONER GUIDE. IF OIL PUMP FACE IS DAMAGED AND OR WORN THRU REPLACE OIL PUMP. INSPECT BEARINGS FOR DAMAGE WEAR DUE TO DEBRIS FROM OIL PUMP.
PIT5311B2016-09-21. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; ELECTRICAL SYSTEM:WIRING. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE AN INTERMITTENT "CHECK TRAILER WIRING" OR "SERVICE TRAILER BRAKE" MESSAGE ON THE DRIVER INFORMATION CENTER. TECHNICIAN WILL INSPECT AND CLEAN THE GROUND WIRE (NORMALLY WHITE WIRE) CONNECTION ON THE TRAILER SIDE OF THE 7-PIN CONNECTOR. INSPECT THAT THE WIRES INSIDE THE TRAILER SIDE CONNECTOR ARE CLEAN AND SECURELY FASTENED. IF THE VEHICLE’S 7-WAY CONNECTOR SOCKET TERMINALS ARE DEFORMED OR HAVE EXCESSIVE WEAR, IT WILL BE NECESSARY TO REPLACE THE TRUCK SIDE CONNECTOR FROM GENERAL MOTORS CUSTOMER CARE AND AFTERSALES ALONG WITH THE TRAILER'S 7-WAY CONNECTOR PLUG.
PIP5211E2016-09-21. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE STEPS NEEDED TO DIAGNOSE AND REPAIR VEHICLES WITH A ROUGH IDLE AND/OR VIBRATION AT IDLE IN DRIVE. THIS CONDITION WILL NOT BE PRESENT IN PARK, OR NEUTRAL. THIS CONCERN MAY BE CAUSED BY GROUND OUT WITHIN THE ONE OR BOTH ENGINE MOUNTS. TECHNICIAN WILL USE CH-51450-A (PICO OSCILLOSCOPE) TO MEASURE THE VIBRATION DISTURBANCE. IF THE VIBRATION CONCERN IS E1.5 IN THE HORIZONTAL / LATERAL DIRECTION WITH PICO SENSOR MOUNTED IN SEAT TRACK AS INDICATED – CONTINUE WITH STEPS TO REDUCE THE AMPLITUDE OF THE VIBRATION BY ADDING SPACERS IN KEY LOCATIONS TO REDUCE GROUND OUT WITHIN THE ENGINE MOUNTS. THE 6.2L ENGINE HAS A CHARACTERISTIC E1 WHICH CAN BE FELT, AND MAY BE DESCRIBED AS A LOPEY IDLE. DO NOT CONFUSE 6.2L E1 CHARACTERISTIC (NOT CAUSED BY MOUNT GROUND-OUT), WITH E1.5 NORMAL IDLE CHARACTERISTICS BEING TRANSMITTED INTO THE TRUCK VIA GROUND-OUT THRU THE ENGINE MOUNTS. IF MEASURING HIGH AT THE SEAT TRACK 12 MG OR GREATER; REPLACEMENT OF THE ENGINE MOUNTS SHOULD HELP REDUCE THE AMPLITUDE OF THE VIBRATION. IF THE DISTURBANCE MEASURES AT THE SEAT TRACK AS E1.5 LATERAL IN THE RANGE OF APPROXIMATELY 2.5 - 8 MG USING A TRI-AXIS SENSOR. THEN PLACE TRI-AXIS PICO SENSOR ON THE INBOARD SEAT TRACK FORWARD-MOST LOCATION TO RECORD MEASUREMENT OF THE ROUGH IDLE VIBRATION CONCERN. WITH THE HEATER-VENT-AIR CONDITIONING ON PERFORM SEVERAL SHORT HEAVY LAUNCH EVENTS FROM STOP TO STOP TO BRING THE TEMPERATURES BACK UP WHILE ATTEMPTING TO RE-CREATE THE ROUGH IDLE VIBRATION IN DRIVE WITH PICO SENSOR PLACED ON INBOARD SEAT TRACK; WHILE THE VIBRATION IS ACTIVE – RECORD PICO READING. THIS METHOD SEEMS TO PROVIDE BETTER RESULTS THAN EXTENDED TEST DRIVES. IF THE PICO READING FOR E1.5, WITH VIBRATION ACTIVE, AT SPECIFIED SEAT TRACK LOCATION MEASURES CLOSE TO 2MG OR LESS USE SERVICE INFORMATION TO DIAGNOSE ROUGH IDLE / VIBRATION.
PIP5337D2016-09-21. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEP TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE A SHAKE OR SHUDDER DURING LIGHT THROTTLE ACCELERATION, BETWEEN 30 AND 65 MPH STEADY STATE DRIVING. ALSO SHUDDER FEELING THAT MAY BE DESCRIBED AS DRIVING OVER RUMBLE STRIPS OR ROUGH PAVEMENT. TECHNICIAN WILL DRIVE THE VEHICLE AND MONITOR THE TORQUE CONVERTER CLUTCH SLIP. THE TORQUE CONVERTER CLUTCH SLIP SPEED SHOULD BE 10 RPM OR LESS ALSO NOTE IF THE SHUDDER TAKES PLACE DURING TORQUE CONVERTER CLUTCH APPLY. IF THE TORQUE CONVERTER CLUTCH SLIP SPEED IS IN THE RANGE OF 10 RPM OR LESS THE CONDITION IS POSSIBLY RELATED TO ENGINE PERFORMANCE. IF THE SHUDDER IS ONLY PRESENT IN 4 CYLINDER MODE AND TORQUE CONVERTER CLUTCH SLIP IS 10 RPM OR LESS DEEM THE SHUDDER CONCERN NORMAL CHARACTERISTIC OF ACTIVE FUEL MANAGEMENT. IF THE SLIP SPEED IS BEYOND 10 RPM OR THERE IS SHUDDER DURING TORQUE CONVERTER CLUTCH APPLY THE TORQUE CONVERTER WILL NEED TO BE REPLACED.
SB-140562016-09-21. Service bulletin. ELECTRICAL SYSTEM:WIRING; SERVICE BRAKES, ELECTRIC. 14056 - MESSAGE NO BULLETIN. CERTAIN VEHICLES, EQUIPPED WITH THE TRAILERING PACKAGE (RPO Z82 WITHOUT RPO JL1), WERE SHIPPED TO DEALERS WITHOUT THE ELECTRIC BRAKE CONTROLLER WIRE HARNESS. THE MISSING HARNESSES ARE BEING SHIPPED TO DEALERS FROM THE WARRANTY PARTS CENTER (WPC) FOR VEHICLES IN DEALER INVENTORY. THIS SHIPMENT WILL BEGIN MARCH 1, 2014, VIA UPS 3-DAY SHIPPING. IF A VEHICLE ASSIGNED TO YOU HAS BEEN SOLD OR DEALER TRADED, PLEASE MAKE ARRANGEMENTS TO PROVIDE THE CUSTOMER OR DEALER WITH THE HARNESS. GM WILL MAIL THE HARNESS TO CUSTOMERS OF RECORD.
SUB-140342016-09-20. Service bulletin. EQUIPMENT. 14034 - SERVICE UPDATE. VEHICLES INVOLVED IN THIS SERVICE UPDATE WERE PLACED ON STOP DELIVERY FEBRUARY 3, 2014. ONCE THE SERVICE PROCEDURE CONTAINED IN THIS BULLETIN HAS BEEN PERFORMED ON THE VEHICLE, THE VEHICLE IS RELEASED FROM STOP DELIVERY AND CAN BE DELIVERED TO THE CUSTOMER. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO ENSURE THAT THE FUSE BLOCK, LOCATED ON TOP OF THE PASSENGER SIDE SHOCK TOWER IN THE ENGINE COMPARTMENT, IS PROPERLY RETAINED ON CERTAIN VEHICLES EQUIPPED WITH A 220 AMP GENERATOR (KW5). THE RETENTION CLIPS THAT ATTACH THE FUSE BLOCK TO THE BODY CAN BECOME LOOSE ALLOWING THE FUSE BLOCK TO MOVE OUT OF POSITION. IF THIS OCCURS, EXPOSED CONDUCTORS IN THE FUSE BLOCK MAY CONTACT THE MOUNTING STUDS CAUSING A SHORT TO GROUND EVENT AND POSSIBLY AN ENGINE COMPARTMENT FIRE.
SB-140692016-09-20. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 14069 - STOP DELIVERY CANCELLATION (CWNFA). ON FEBRUARY 26, 2014, (27) VEHICLES WERE PLACED ON STOP DELIVERY VIA GLOBALCONNECT MESSAGE G-_0000186344. ON FEBRUARY 28, 2014 (GLOBALCONNECT MESSAGE G_0000186555), (25) OF THE VEHICLES WERE RELEASED FROM STOP DELIVERY WITH NO FURTHER ACTION REQUIRED; HOWEVER, THE 2 VEHICLES REMAINED ON STOP DELIVERY. THE 2 REMAINING VEHICLES LISTED BELOW ARE NOW REMOVED FROM STOP DELIVERY. NO FURTHER ACTION IS REQUIRED.
G-2096582016-09-08. Service bulletin. UNKNOWN OR OTHER. ANCELLATION OF STOP DELIVERY ORDER - LASER WELD INVESTIGATION (DEALER MESSAGE ONLY). NO ACTION TAKEN
G-2091032016-09-08. Service bulletin. STRUCTURE:BODY:BUMPERS. 14731 - SERVICE UPDATE. REPLACE THE FRONT BUMPER ASSEMBLY ON CERTAIN 2015 MODEL YEAR GMC SIERRA HD VEHICLES EQUIPPED WITH ALL TERRAIN APPEARANCE PACKAGE (RPO GAT). THESE VEHICLES MAY HAVE BEEN BUILT WITH FRONT BUMPERS THAT INCLUDE FRONT PARKING ASSIST ALARM SENSORS. THESE SENSORS SHOULD NOT HAVE BEEN INCLUDED IN THE STANDARD ALL-TERRAIN OPTION PACKAGE. THESE FRONT PARK ASSIST ALARM SENSORS ARE NOT FUNCTIONAL.
G-2090122016-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. STOP DELIVERY ORDER. LASER WELD INVESTIGATION.
G-2084552016-09-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 14584 - SERVICE UPDATE. REPROGRAM THE BODY CONTROL MODULE (BCM) WITH AN UPDATED TOP SPEED CALIBRATION ON CERTAIN 2015 MODEL YEAR CHEVROLET SILVERADO HD CREW CAB AND GMC SIERRA HD CREW CAB VEHICLES EQUIPPED WITH LIQUEFIED PROPANE GAS (LPG) / COMPRESSED NATURAL GAS (CNG) ENGINE (RPO LC8), 6-SPEED AUTOMATIC TRANSMISSION (RPO MYD) AND 4.10 GEAR RATIO REAR AXLE (RPO GT5). IF THIS CONDITION IS NOT CORRECTED, HIGH STRAINS MAY OCCUR IN SOME POWERTRAIN STRUCTURAL AREAS AND PROLONGED EXPOSURE COULD RESULT IN CASE FRACTURES OF THE TRANSMISSION AND/OR TRANSFER CASE, AND FLUID LOSS COULD FOLLOW.
G-2085702016-09-07. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS. SERVICE UPDATE (REVISED PART INFORMATION). INSPECT VEHICLES AND REPLACE THE POWER STEERING COOLER ASSEMBLY AS NEEDED ON VEHICLES THAT WERE PREVIOUSLY SERVICED PRIOR TO SEPTEMBER 9, 2014 PURSUANT TO RECALL BULLETIN 14356 (SINCE SUPERSEDED BY BULLETIN 14356A). THESE VEHICLES MAY HAVE BEEN BUILT WITH A HOSE CONNECTION WITHIN THE POWER STEERING COOLER ASSEMBLY THAT IS MISSING THE FERRULE OR FERRULE CRIMP. IF THE VEHICLE IS DRIVEN WITHOUT THE FERRULE OR FERRULE CRIMP, THERE MAY BE A LOSS OF POWER STEERING FLUID.
PIC-6095-A2016-08-26. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH A DIAGNOSTIC AID FOR IDENTIFYING INFOTAINMENT COMPONENTS ON THE VEHICLES TO ENSURE THAT THE CORRECT COMPONENT IS ORDERED OR REPLACED AND THE CORRECT LABOR CODE IS USED FOR WARRANTY SUBMISSION.
PIT-55082016-08-25. Service bulletin. STEERING:HYDRAULIC POWER ASSIST SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON HOW TO DIAGNOSE AND REPAIR VEHICLES WITH ONE OF THE TWO CONCERNS. VEHICLE MAY HAVE AN INTERMITTENT "SERVICE POWER STEERING, DRIVE WITH CARE" ON THE DRIVER INFORMATION CENTER AND A DIAGNOSTIC TROUBLE CODE C0545 SYMPTOM 00 SET IN THE POWER STEERING CONTROL MODULE. OR THE VEHICLE MAY HAVE INOPERATIVE AIR CONDITION CAUSED BY ANY OF THE FOLLOWING DIAGNOSTIC TROUBLE CODE B393B, FUSE F60UA OR F35UA BEING OPEN, OR A POOR AIR CONDITION COMPRESSOR CLUTCH GROUND. TECHNICIAN WILL GAIN ACCESS TO THE WIRE HARNESS UNDER THE AIR CONDITION COMPRESSOR, INSPECT FOR DAMAGE WIRES AND REPAIR THE WIRES.
PIT-5301-A2016-08-25. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT DIAGNOSTIC TROUBLE CODE B127E IN THE HUMAN MACHINE INTERFACE WITH REGULAR PRODUCTION OPTION CODE U42 OR UWG WILL BE CURRENT WHEN PLAYING A DVD OR BLU-RAY ON THE INTEGRATED CENTER STACK DISPLAY. WHEN THE DISC IS EJECTED THE DIAGNOSTIC TROUBLE CODE WILL BE HISTORY. IF THE DIAGNOSTIC TROUBLE CODE B127E REMAINS CURRENT AFTER EJECTING THE DISC FOLLOW SERVICE INFORMATION DIAGNOSTIC PROCEDURE INSTRUCTIONS FOR B127E WITH REGULAR PRODUCTION OPTION CODE U42 OR UWG.

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