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Service bulletins for the 2014 Chevrolet Silverado

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.

3313 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
PIP52592017-03-16. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A SERVICE ENGINE SOON WITH DIAGNOSTIC TROUBLE CODE P0300 AND AN ENGINE MISFIRE. TECHNICIAN WILL NEED TO INSPECT THE VALVE OPERATION, IF THE VALVE OR VALVES ARE NOT MOVING THE ACTIVE FUEL MANAGEMENT LIFTERS AND GUIDE ON THE BANK WITH THE CONCERN AND THE OIL PUMP AND OIL PAN ASSEMBLY SHOULD BE REPLACED.
PIP5230A2017-03-15. Service bulletin. EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN BEFORE REPLACING THE CRANKSHAFT TO REVIEW THE FOLLOWING. DEALER SHOULD COMPLETE THE SERVICE INFORMATION DIAGNOSTICS AND THE COST COMPARISON WORKSHEET FOR ASSEMBLY REPAIR VS REPLACEMENT. TECHNICIAN WILL USE THE LATEST VERSION OF 09-06-04-026G TO VERIFY THE ECM CALIBRATION IS NOT AN AFTERMARKET CALIBRATION. IF THE CUSTOMER PREFERS TO KEEP THE ORIGINAL NUMBERS MATCHING ENGINE PLEASE CALL TAC FOR REPAIR DIRECTION.
PIP5204E2017-03-15. Service bulletin. EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE DIESEL OXIDATION CONVERTER PART RESTRICTION HAS ENDED. DEALER CAN NOW ORDER THE PARTS THROUGH THE REGULAR CUSTOMER CARE AND AFTERSALES PARTS PROCESS.
PIP4568R2017-03-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT SOME VEHICLES MAY HAVE A SERVICE ENGINE SOON LAMP, ENGINE MISFIRE ON CYLINDER 1, 4, 6, OR 7 AND/OR TICK NOISE. TECHNICIAN WILL FOLLOW SERVICE INFORMATION DIAGNOSIS FIRST. IF SERVICE INFORMATION DIAGNOSIS DOES NOT ISOLATE THE CAUSE OF THIS CONCERN PERFORM A CYLINDER DEACTIVATION ACTIVE FUEL MANAGEMENT SYSTEM COMPRESSION TEST IN SERVICE INFORMATION. IF THE RUNNING COMPRESSION OF THE MISFIRING CYLINDER STAYS BELOW 25 POUNDS PER SQUARE INCH REGARDLESS OF THE ACTIVE FUEL MANAGEMENT SOLENOID BEING COMMANDED ON OR OFF, AN ACTIVE FUEL MANAGEMENT LIFTER IS MECHANICALLY COLLAPSED/STUCK OR UNLOCKING AS SOON AS THE ENGINE IS STARTED. REPLACE ALL ACTIVE FUEL MANAGEMENT LIFTERS, AND ALL PLASTIC LIFTER GUIDES. ALSO PERFORM THE CYLINDER DEACTIVATION ACTIVE FUEL MANAGEMENT VALVE LIFTER OIL MANIFOLD DIAGNOSIS AND TESTING IN SERVICE INFORMATION. IF IT ISOLATES A CONCERN WITH THE VALVE LIFTER OIL MANIFOLD, REPLACE IT AND REEVALUATE THE CONCERN. THE ACTIVE FUEL MANAGEMENT LIFTERS CAN ALSO BE MONITORED FOR PROPER OPERATION BY CAREFULLY INSPECTING THE CYLINDER 1, 4, 6, AND 7 ROCKERS AND VALVES WHILE CRANKING OR BRIEFLY AND SAFELY RUNNING THE ENGINE WITH THE VALVE COVERS REMOVED. IF THE VALVE OR VALVES OF AN ACTIVE FUEL MANAGEMENT CYLINDER STOP MOVING WHILE DOING THIS TEST, THE ACTIVE FUEL MANAGEMENT LIFTER IS CAUSING THE CONCERN. FOR 2008-2009 FULL SIZE TRUCK/SUV OR A 2007-2009 CHEVROLET TAHOE WITH THE POLICE PACKAGE REPROGRAM THE ENGINE CONTROL MODULE. ON THE 2008-2009 PONTIAC G8, 2010-2011 CAMARO, AND 2007-2010 FULL SIZE TRUCKS WITH ACTIVE FUEL MANAGEMENT, ALSO DETERMINE IF THE ACTIVE FUEL MANAGEMENT PRESSURE RELIEF VALVE SHIELD THAT IS LISTED IN THE LATEST VERSION OF 10-06-01-008 HAS EVER BEEN INSTALLED. ON PASSENGER CARS WITH THE LS4 ENGINE, DETERMINE IF THE UPDATED OIL PAN GASKET THAT IS LISTED IN THE LATEST VERSION OF 11-06-01-007 HAS BEEN INSTALLED.
PIC3278F2017-03-14. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE STEPS NEEDED TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE UNWANTED OR PHANTOM PHONE CALLS. TECHNICIAN WILL NEED TO DETERMINE WHAT TYPE OF CALL THE CUSTOMER IS HAVING THAT IS UNWANTED. THE VEHICLE MAY RECEIVE AN INCOMING CALL JUST LIKE ANY OTHER PHONE. TYPICALLY THE CUSTOMER WILL HEAR THE PHONE RINGING IN THE VEHICLE. THIS SCENARIO ALSO INCLUDES INCOMING BLUETOOTH CALLS. ONE TYPE OF UNWANTED CALL CAN BE MADE IF THE KEY PAD IS FAULTY THE ONSTAR SYSTEM WILL TRY TO MAKE A BLUE BUTTON CALL FOR SHORTED VOLTAGE IN THE CIRCUITS. THE ONSTAR MODULE COULD HAVE AN INTERNAL FAULT AND PRODUCE A PHONE UNAVAILABLE AUDIO MESSAGE ALSO IT MAY HAVE A DIAGNOSTIC TROUBLE CODE U1500 OR B1000. REFER TO DIAGNOSTICS FOR THE DIAGNOSTIC TROUBLE CODE MAKING SURE TO FOLLOW ANY APPLICABLE BULLETINS OR PRELIMINARY INFORMATION SHEETS. A GREADYH OR GONSTAR READYH AUDIO MESSAGE HEARD WHILE DRIVING. IN SOME CASES IT HAS BEEN FOUND THAT THE CUSTOMER IS INADVERTENTLY PRESSING THE PUSH TO TALK BUTTON ON THE STEERING WHEEL CONTROLS. ON RARE OCCASIONS, OTHER ISSUES IN THE STEERING COLUMN OR STEERING WHEEL CONTROL SYSTEM MAY INDUCE THIS CONCERN.
PI0652A2017-03-14. Service bulletin. EQUIPMENT. THIS PRELIMINARY BULLETIN PROVIDES A INFORMATION ON HOW TO REMOVE THE SEIZED TEMPERATURE SENSORS FROM THE DPF.
PI1354D2017-03-13. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; ELECTRICAL SYSTEM; SUSPENSION. THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES INFORMATION ON A PROCEDURE FOR DIAGNOSING AND REPAIRING VIBRATIONS CAUSED BY THE WHEEL AND TIRE, AXLE COMPONENTS AND/OR PROPELLER SHAFTS.
PI1288A2017-03-09. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE RADIO TO CORRECT THE CUSTOMERS CONCERN OF POOR RADIO RECEPTION.
G-1990412017-03-03. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. 14289 - SPECIAL COVERAGE. ON SOME VEHICLES, EQUIPPED WITH E85 FLEX FUEL CAPABILITY (FHS), THE FLEXIBLE FUEL SENSOR MAY BECOME INOPERATIVE DURING NORMAL OPERATION DUE TO AN ELECTRICAL FAILURE CAUSED BY ROAD SALT AND OTHER ENVIRONMENTAL CONTAMINANTS. WITH A FAULTY FLEX FUEL SENSOR, THE SERVICE ENGINE SOON LIGHT WILL ILLUMINATE AND REMOTE START WILL BE INOPERATIVE. DEALERS ARE TO REPLACE THE FUEL FLEX SENSOR. THE REPAIRS WILL BE MADE AT NO CHARGE TO THE CUSTOMER.
14166-A2017-03-03. Service bulletin. AIR BAGS. 14166A - CUSTOMER SATISFACTION (REVISED NET ITEM ALLOWANCE). CERTAIN VEHICLES HAVE DRIVER AND PASSENGER SEAT SIDE IMPACT AIRBAG (SIAB) WIRING HARNESS CONNECTORS THAT MAY HAVE HIGH RESISTANCE. THE VEHICLE SENSING AND DIAGNOSTIC MODULE (SDM) INTERPRETS THE HIGH RESISTANCE AS A FAULT. A FAULT WILL ILLUMINATE THE AIRBAG READINESS LIGHT AND TURN ON A “SERVICE AIR BAG” DRIVER INFORMATION CENTER (DIC) MESSAGE. THE FAULT AND THE WARNING INDICATORS MAY BE INTERMITTENT. DEPENDING ON THE LEVEL OF RESISTANCE, THE SIABS MAY NOT DEPLOY IN A CRASH. REMOVE THE DRIVER AND PASSENGER SIAB WIRING HARNESS CONNECTORS AND INSTALL ELECTRICAL JUMPER WIRES IN THEIR PLACE.
G-1978282017-03-03. Service bulletin. EQUIPMENT. 14151 - CUSTOMER SATISFACTION (MESSAGE ONLY, VIN LIST WAS NOT ATTACHED TO THE PREVIOUS MESSAGE). THIS MESSAGE IS TO ALERT DEALERS THAT GENERAL MOTORS HAS BECOME AWARE THAT SOME CUSTOMERS MAY BE OVERFILLING THEIR COMPRESSED NATURAL GAS (CNG) TANKS IN COLD WEATHER BY ADDING CNG BEYOND THE RECOMMENDED FILL PRESSURE. IF CNG TANKS ARE FILLED TO A HIGHER PRESSURE THAN RECOMMENDED AT A GIVEN AMBIENT TEMPERATURE, THEN MOVED TO A MUCH HIGHER AMBIENT TEMPERATURE ENVIRONMENT, EXPANSION OF THE GAS CAUSED BY THE TEMPERATURE CHANGE MAY CAUSE PRESSURE RELIEF DEVICES ON THE VEHICLE CNG TANK(S) TO RELEASE GAS, AS DESIGNED. IF AN IGNITION SOURCE WERE PRESENT, THIS COULD CREATE A RISK OF FIRE OR EXPLOSION. AN ADVISORY LETTER WAS MAILED TO ALL INVOLVED CUSTOMERS ALONG WITH AND OWNER MANUAL CNG SUPPLEMENT AND TWO LABELS WITH INSTRUCTIONS.
G-1977352017-03-03. Service bulletin. EQUIPMENT. 14151 - CUSTOMER SATISFACTION (MESSAGE ONLY WITH LETTER). THIS MESSAGE IS TO ALERT DEALERS THAT GENERAL MOTORS HAS BECOME AWARE THAT SOME CUSTOMERS MAY BE OVERFILLING THEIR COMPRESSED NATURAL GAS (CNG) TANKS IN COLD WEATHER BY ADDING CNG BEYOND THE RECOMMENDED FILL PRESSURE. IF CNG TANKS ARE FILLED TO A HIGHER PRESSURE THAN RECOMMENDED AT A GIVEN AMBIENT TEMPERATURE, THEN MOVED TO A MUCH HIGHER AMBIENT TEMPERATURE ENVIRONMENT, EXPANSION OF THE GAS CAUSED BY THE TEMPERATURE CHANGE MAY CAUSE PRESSURE RELIEF DEVICES ON THE VEHICLE CNG TANK(S) TO RELEASE GAS, AS DESIGNED. IF AN IGNITION SOURCE WERE PRESENT, THIS COULD CREATE A RISK OF FIRE OR EXPLOSION. AN ADVISORY LETTER WAS MAILED TO ALL INVOLVED CUSTOMERS ALONG WITH AND OWNER MANUAL CNG SUPPLEMENT AND TWO LABELS WITH INSTRUCTIONS.
G-1947842017-02-24. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. 14126 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPROGRAM THE INSTRUMENT PANEL CLUSTER ON CERTAIN VEHICLES. ALSO INVOLVED ARE CERTAIN 2015 MY CHEVROLET SUBURBAN, TAHOE AND GMC YUKON VEHICLES. THESE VEHICLES MAY HAVE AN ODOMETER READING AT “PEEK IN” (I.E. DRIVER INFORMATION CENTER (DIC) SCREEN WHEN THE VEHICLE IS IN THE OFF POWER MODE BUT THE CLUSTER IS AWAKENED BY OPENING THE CAR DOOR OR USING THE KEY FOB) DOES NOT MATCH THE SEASON ODOMETER READING WHEN THE VEHICLE IS IN THE RUN POWER MODE. THE TRIP A/B AND FUEL ECONOMY DISPLAYS MAY ALSO BE INCORRECT. THIS CONDITION OCCURS, WHEN THE VEHICLE SITS FOR AN EXTENDED PERIOD OF TIME AND, NORMAL PARASITIC CURRENT DRAWS DEPLETE THE BATTERY STATE OF CHARGE TO LESS THAN 12 VOLTS AND, THE VEHICLE IS IN THE OFF POWER MODE WHEN THE CLUSTER IS AWAKENED AS DESCRIBED ABOVE.
G-1933602017-02-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14212 - CUSTOMER SATISFACTION. CERTAIN VEHICLES MAY HAVE INACCURATE TOWING CAPACITY VALUES REPORTED IN THE OWNER’S MANUAL. USE OF HIGHER THAN RECOMMENDED MAXIMUM TRAILER WEIGHT COULD RESULT IN A POWERTRAIN COOLING SYSTEM OVERHEAT CONDITION IF OPERATING THE VEHICLE UNDER CERTAIN HIGH AMBIENT TEMPERATURE AND ROAD GRADE CONDITIONS. DEALERS ARE TO PLACE A COPY OF AN UPDATED TOWING CAPACITY TABLE SUPPLEMENT IN THE OWNER MANUAL. GM WILL MAIL THE SUPPLEMENT TO CUSTOMERS OF RECORD.
G-1971522017-02-23. Service bulletin. AIR BAGS. 14166 - CUSTOMER SATISFACTION. CERTAIN VEHICLES HAVE DRIVER AND PASSENGER SEAT SIDE IMPACT AIRBAG (SIAB) WIRING HARNESS CONNECTORS THAT MAY HAVE HIGH RESISTANCE. THE VEHICLE SENSING AND DIAGNOSTIC MODULE (SDM) INTERPRETS THE HIGH RESISTANCE AS A FAULT. A FAULT WILL ILLUMINATE THE AIRBAG READINESS LIGHT AND TURN ON A “SERVICE AIR BAG” DRIVER INFORMATION CENTER (DIC) MESSAGE. THE FAULT AND THE WARNING INDICATORS MAY BE INTERMITTENT. DEPENDING ON THE LEVEL OF RESISTANCE, THE SIABS MAY NOT DEPLOY IN A CRASH.
G-1958782017-02-23. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. 14126A - SERVICE UPDATE (REVISED PROGRAMMING INFORMATION). THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPROGRAM THE INSTRUMENT PANEL CLUSTER ON CERTAIN VEHICLES. THESE VEHICLES MAY HAVE AN ODOMETER READING AT “PEEK IN” (I.E. DRIVER INFORMATION CENTER (DIC) SCREEN WHEN THE VEHICLE IS IN THE OFF POWER MODE BUT THE CLUSTER IS AWAKENED BY OPENING THE CAR DOOR OR USING THE KEY FOB) DOES NOT MATCH THE SEASON ODOMETER READING WHEN THE VEHICLE IS IN THE RUN POWER MODE. THE TRIP A/B AND FUEL ECONOMY DISPLAYS MAY ALSO BE INCORRECT. THIS CONDITION OCCURS, WHEN THE VEHICLE SITS FOR AN EXTENDED PERIOD OF TIME AND, NORMAL PARASITIC CURRENT DRAWS DEPLETE THE BATTERY STATE OF CHARGE TO LESS THAN 12 VOLTS AND, THE VEHICLE IS IN THE OFF POWER MODE WHEN THE CLUSTER IS AWAKENED AS DESCRIBED ABOVE.
141512017-02-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 14151 - CUSTOMER SATISFACTION PROGRAM (REVISED POPULATION, LETTER ONLY). INFORMATION ABOUT CUSTOMERS OVERFILLING THEIR COMPRESSED NATURAL GAS (CNG) TANKS IN COLD WEATHER IN CERTAIN VEHICLES WAS PREVIOUSLY SENT. ADDITIONAL 13 VEHICLES ARE ADDED FOR WHICH WE DO NOT HAVE CURRENT OWNER NAME AND ADDRESS. A LIST IS ATTACHED WITH INVOICING BUSINESS ASSOCIATE CODE, PLEASE USE THE LIST TO ASSIST WITH IDENTIFYING THE OWNER AND LOCATION OF THE VEHICLE. IF YOU ARE ABLE TO LOCATE OWNER INFORMATION FOR ONE OF THESE VEHICLES, FOLLOW THE ORDERING INSTRUCTIONS PROVIDED IN THE ORIGINAL MESSAGE TO OBTAIN A FUEL FILLER DOOR LABEL, A GLOVE BOX HANG TAG AND AN OWNER MANUAL INSERT. UPON RECEIPT, PLEASE FORWARD THE KIT TO THE CUSTOMER FOR SELF-INSTALLATION.
14126B2017-02-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 14126B - SERVICE UPDATE (REVISED PROGRAMMING INFORMATION). THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPROGRAM THE INSTRUMENT PANEL CLUSTER ON CERTAIN VEHICLES. THESE VEHICLES MAY HAVE AN ODOMETER READING AT “PEEK IN” (I.E. DRIVER INFORMATION CENTER (DIC) SCREEN WHEN THE VEHICLE IS IN THE OFF POWER MODE BUT THE CLUSTER IS AWAKENED BY OPENING THE CAR DOOR OR USING THE KEY FOB) DOES NOT MATCH THE SEASON ODOMETER READING WHEN THE VEHICLE IS IN THE RUN POWER MODE. THE TRIP A/B AND FUEL ECONOMY DISPLAYS MAY ALSO BE INCORRECT. THIS CONDITION OCCURS, WHEN THE VEHICLE SITS FOR AN EXTENDED PERIOD OF TIME AND, NORMAL PARASITIC CURRENT DRAWS DEPLETE THE BATTERY STATE OF CHARGE TO LESS THAN 12 VOLTS AND, THE VEHICLE IS IN THE OFF POWER MODE WHEN THE CLUSTER IS AWAKENED AS DESCRIBED ABOVE.
144812017-02-03. Service bulletin. ELECTRICAL SYSTEM:WIRING. "14481 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO INSPECT AND VERIFY THE INSTALLATION OF THE SPARK PLUG WIRES ON CERTAIN VEHICLES EQUIPPED WITH A GEN V GAS 5.3/6.2L V-8 OR 4.3L V-6 ENGINE (RPO L83/L86/LT1/LV3). THESE VEHICLES MAY HAVE LOOSE SPARK PLUG WIRES THAT ARE NOT SECURED AT THE SPARK PLUG OR COIL ATTACHMENT. LOOSE SPARK PLUG WIRES CAN CAUSE A MISFIRE CONDITION RESULTING IN P0300 DTC BEING SET WITH MIL (“SERVICE ENGINE SOON” LIGHT). CONTINUED OPERATION WITH THIS CONDITION COULD RESULT IN DAMAGE TO THE CATALYTIC CONVERTER."
144102017-02-03. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. 14410 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REMOVE AND REINSTALL THE DOOR LATCH FASTENERS ON THE DRIVER'S SIDE FRONT AND REAR DOOR ON CERTAIN VEHICLES. THESE FASTENERS MAY HAVE BEEN INSTALLED BELOW PROPER TORQUE SPECIFICATIONS, AND OVER TIME, COULD ALLOW A REDUCTION IN CLAMP LOAD, RESULTING IN A POTENTIAL DOOR RATTLE.
13318A2017-02-03. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. 13318A - SERVICE UPDATE (REVISED SERVICE PROCEDURE). THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPLACE THE POWER SLIDING REAR GLASS REGULATOR ON CERTAIN VEHICLES, EQUIPPED WITH THE POWER SLIDING REAR WINDOW FEATURE (A48). ON THESE VEHICLES, THE PLASTIC COMPONENTS OF THE CABLE/PULLEY ASSEMBLY MAY DEFORM, CAUSING THE FEATURE TO BECOME INOPERATIVE. IF THE WINDOW IS IN THE OPEN POSITION WHEN IT BECOMES INOPERATIVE, THE WINDOW DEFOGGER CANNOT BE ACTIVATED.
152082017-02-03. Service bulletin. EQUIPMENT. 15208 - CUSTOMER ADVISORY. THE LETTER INFORMS CUSTOMERS WITH VEHICLES THAT ARE EQUIPPED WITH SNOW PLOW PREP PACKAGE (RPO VYU) THAT, UNDER CERTAIN CONDITIONS, THERE MAY BE BRIEF AND INTERMITTENT INTERRUPTIONS OF CERTAIN ELECTRONIC FEATURES WHEN THE VEHICLE IS FITTED WITH A SNOW PLOW. FOR EXAMPLE, A BRIEF OUTAGE OF THE INSTRUMENT PANEL CLUSTER, THE RADIO, AND/OR THE CLIMATE CONTROL SYSTEM COULD OCCUR UPON RELEASING THE SNOW PLOW CONTROL BUTTON AFTER ADJUSTING THE SNOW PLOW BLADE. THESE SYSTEMS WILL RETURN AUTOMATICALLY AFTER THE BRIEF INTERRUPTION.
142842017-02-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES. 14284 - CUSTOMER SATISFACTION PROGRAM. CERTAIN VEHICLES EQUIPPED WITH THE AUXILIARY SWITCH BANK (RPO 9L7) MAY HAVE AN ELECTRICAL ISSUE CREATED WHEN ONE OR BOTH UPFITTER FUSES USED FOR THE INSTRUMENT PANEL MOUNTED AUXILIARY SWITCH BANK ARE MOVED FROM THE BATTERY FEED TO THE IGNITION FEED POSITION. IF THE FUSE POSITIONS ARE ALTERED, THE ENGINE COULD CONTINUE TO RUN AFTER THE IGNITION SWITCH IS TURNED OFF. THERE COULD ALSO BE AN INADVERTENT GLOWING OF THE AUXILIARY SWITCH INDICATORS, ADDITIONAL PARASITIC CURRENT DRAIN, OR A NO START CONDITION. DEALERS ARE TO REPLACE THE UNDERHOOD ELECTRICAL CENTER.
14515 MESSAGE2017-02-02. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM; EQUIPMENT. 14515 - CUSTOMER SATISFACTION PROGRAM (STOP DELIVERY EXPANSION). APPROXIMATELY 8,776 ADDITIONAL VEHICLES HAVE BEEN ADDED TO THE RECALL POPULATION. THESE VEHICLES WERE SERVICED WITH A CHASSIS ELECTRONIC MODULE SUSPECTED OF CONTAINING INTERNAL CONTAMINATION. A VERY SMALL NUMBER OF OLDER MODEL VEHICLES ARE NOW INCLUDED AND IDENTIFIED IN IVH WHICH HAS BEEN UPDATED AS OF DECEMBER 2, 2014. ADDITIONALLY, THE IVH SYSTEM ISSUE THAT WAS COMMUNICATED HAS BEEN RECTIFIED AND ALL INVOLVED VEHICLES SHOULD NOW SHOW "INCOMPLETE – REMEDY NOT YET AVAILABLE".
14725A2017-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:WIRING. 14725A - SERVICE UPDATE (REVISED SERVICE INFORMATION). THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO TIE STRAP THE “MAIN” AND “BCM” BRANCHES OF THE BODY HARNESS (NEAR THE FRONT OF DASH PASS-THROUGH INSIDE THE VEHICLE) TOGETHER TO PREVENT THEM FROM COMING IN CONTACT WITH PARK BRAKE BRACKET ON CERTAIN VEHICLES. THESE VEHICLES MAY HAVE EXPOSED BODY HARNESS WIRES IN CLOSE PROXIMITY TO THE PARKING BRAKE BRACKET AT THE FRONT DASH PASS-THROUGH INSIDE THE VEHICLE. THE EXPOSED BODY HARNESS WIRES CAN RUB AGAINST OR BE PINCHED BY THE BRAKE BRACKET. WHILE THERE IS NO EVIDENCE OF THIS HAPPENING IN CUSTOMER VEHICLES, IF THE WIRES WERE TO BE SUFFICIENTLY DAMAGED FROM RUBBING AGAINST OR BEING PINCHED BY THE BRAKE BRACKET, CERTAIN ELECTRICAL SYSTEMS COULD BE AFFECTED. FOR EXAMPLE, SUFFICIENT DAMAGE TO THE WIRES COULD RESULT IN THE LOSS OF VARIOUS EXTERIOR LIGHTS, WIPERS, THE DRIVER’S AIRBAG TELLTALE LIGHT, THROTTLE CONTROL, DEFOG CONTROLS, OR TRAILER BRAKE CONTROLS. IN ADDITION, WHILE THERE IS NO EVIDENCE OF ANY STALLS RESULTING FROM THIS CONDITION, IT IS POSSIBLE THAT IF THE RUN/CRANK WIRE WAS SUFFICIENTLY DAMAGED, IT COULD RESULT IN AN ENGINE STALL. DEPENDING ON WHICH CIRCUIT IS DAMAGED, A TELLTALE OR DIC MESSAGE MAY BE DISPLAYED ALERTING THE CUSTOMER THAT AN ISSUE EXISTS.

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