Service bulletins for the 2016 Buick LaCrosse
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.
1240 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| PIC6210 | 2016-09-23. 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. |
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| PIC5428G | 2016-09-23. Service bulletin. TRACTION CONTROL SYSTEM; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; SERVICE BRAKES, ELECTRIC. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON HOW TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE THE ANTILOCK BRAKING SYSTEM, SERVICE TRACTION CONTROL SYSTEM, AND/OR SERVICE STABILITRAK LIGHTS ARE ON. THE ELECTRONIC BRAKE CONTROL MODULE MAY HAVE ONE OR MORE OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES C0035-C0050 WITH SPECIFICALLY SYMPTOM 18, 5A, OR 0F. TECHNICIAN WILL GAIN ACCESS TO THE CORRECT WHEEL BEAR PER THE DIAGNOSTIC TROUBLE CODE THAT IS SET. IF DEBRIS IS FOUND ON THE MAGNETIC ENCODER RING IT WILL NEEDED TO BE CLEANED. |
| PIC4788G | 2016-09-23. Service bulletin. EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN OF DIAGNOSTIC INSTRUCTIONS TO TAKE WHEN THE KEY WILL NOT FOLD INTO THE FOB OR WILL NOT STAY IN THE FOLDED POSITION. THE TECHNICIAN MAY COMMENT THAT THE KEY IN THE FOB WILL NOT FOLD CLOSE OR STAY LATCHED CLOSED. DAMAGE TO THE FOLDING MECHANISM COULD RESULT FROM STORING THE KEY IN THE DOOR LOCK CYLINDER AND ACCIDENTLY BUMPING OR MAKING CONTACT WITH THE KEY FOB. PLEASE ADVISE ALL DEALER PERSONNEL TO REFRAIN FROM STORING THE KEY IN THE DOOR LOCK EVEN FOR BRIEF PERIODS. |
| PIC5520U | 2016-09-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN EASSIST DRIVE MOTOR GENERATOR BATTERY MODULE PARTS RESTRICTION HAS ENDED. TO ORDER THE EASSIST DRIVE MOTOR GENERATOR BATTERY SECTION DEALER WILL NEED TO CALL THE BATTERY SERVICE CENTER. |
| PIC-6095-A | 2016-08-26. 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-5301-A | 2016-08-25. 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. |
| PIC-6201 | 2016-08-25. Service bulletin. ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH THE STEPS NEEDED TO DIAGNOSE AND REPAIR A VEHICLE WITH WI-FI OR BLUETOOTH INOPERATIVE OR POOR PERFORMANCE CONCERN. TECHNICIAN WILL NEED TO OBTAIN DATA FROM GLOBAL DIAGNOSTICS SERVICES 2 AND CALL GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR FURTHER ASSISTANCE. |
| PIC-5822-B | 2016-08-24. Service bulletin. STRUCTURE:FRAME AND MEMBERS. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF MILDEW ODOR OR WATER ON FRONT FLOOR ON EITHER SIDE OF THE VEHICLE. TECHNICIAN WILL GAIN ACCESS TO THE FRONT WHEELHOUSE OF THE AFFECTED SIDE. THE FRONT WHEEL HOUSE FLANGE MAY HAVE A VOID IN THE SEALER CAUSING WATER TO LEAK THROUGH AND ACCUMULATE ON THE FLOOR OR WET CARPET WILL BE FOUND. A THUMB GRADE SEALER WILL NEED TO BE PLACED IN THE VOID TO PREVENT THE WATER LEAK INTO THE CABIN. |
| PIP-5394 | 2016-08-24. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE EASSIST DRIVE MOTOR GENERATOR BATTERY SECTION ARE NO LONGER ON RESTRICTION AND DOES NOT REQUIRE GENERAL MOTORS TECHNICAL ASSISTANCE CENTER CASE NUMBER. |
| PIT-5401-F | 2016-08-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF THE RADIO IS INOPERTIVE. NEW SOFTWARE HAS BEEN RELEASED TO CORRECT THIS CONCERN. |
| PIC-5374-D | 2016-08-17. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF RECEIVING FREQUENT "OFF ROUTE" MESSAGES WHILE FOLLOWING TURN BY TURN (TBT) ROUTE NAVIGATION. THE TECHNICIAN IS PROVIDED INSTRUCTIONS FOR RESETTING THE VEHICLE COMMUNICATION INTERFACE MODULE FOR THIS CONCERN. |
| PIC-6078-B | 2016-08-17. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION ON GENERAL MOTORS ENGINEERING IS CURRENTLY WORKING ON INTEGRATED CENTER STECHNICAL ASSISTANCE CENTERK SOFTWARE. CUSTOMER'S TOUCH SCREEN WILL NOT WORK WHEN IT IS TOUCHED. |
| PIC-4935-E | 2016-08-17. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. WHEN PERFORMING BATTERY PARASITIC DRAIN TEST, THERE MAY BE SOME CONFUSION AS TO WHAT THE NORMAL POWER CONSUMPTION READING SHOULD BE FROM THE ONSTAR SYSTEM. |
| PIP-5331-C | 2016-08-16. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR A POSSIBLE RATTLE, TICK, OR KNOCK TYPE NOISE COMING FROM THE ENGINE. |
| PIC-6186-B | 2016-08-16. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER WHEN A CUSTOMER MAY COMMENT THAT THEY WILL HAVE THE RADIO SHUT OFF, AND WHEN RESTARTING THE VEHICLE THE RADIO WILL TURN ON UNWANTED. |
| PIP-5385-A | 2016-08-13. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSING THE CONCERN. THE VEHICLE MAY HAVE A SERVICE ENGINE SOON LIGHT ON OR REDUCED ENGINE POWER MESSAGE ON THE DIVER INFORMATION CENTER. |
| PIC-6191 | 2016-08-12. Service bulletin. SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN TO INSPECT THE CONNECTOR AT THE KR14 BRAKE BOOSTER PUMP RELAY. VEHICLE MAY HAVE A SERVICE BRAKE ASSIST MESSAGE ON THE DRIVERS INFORMATION CENTER (DIC) OR A HARD BRAKE PEDAL ON A COLD START UP. |
| PIC-5260-A | 2016-08-11. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM; VISIBILITY:SUN/MOON ROOF ASSEMBLY. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS. |
| PIC-6186-A | 2016-08-11. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. CUSTOMERS MAY COMMENT THAT THEY WILL HAVE THE RADIO SHUT OFF, AND WHEN RESTARTING THE VEHICLE THE RADIO WILL TURN ON UNWANTED. |
| PIC-6187-A | 2016-08-10. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:SOFTWARE. THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. THE CUSTOMER IS UNABLE TO SELECT RADIO PRESETS FROM THE USB OR SD CARD AS THEY ARE GREYED OUT. |
| SB-16-NA-138 | 2016-08-10. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO ADVISE THE CUSTOMERS THAT HAVE ENROLLED THEIR VEHICLE INTO THE ONSTAR ADVANCED DIAGNOSTICS & REAL TIME DIAGNOSTIC ALERTS THEY MAY RECEIVE ALERTS FROM THEIR VEHICLE WHEN IT IS BEING SERVICED. |
| SB-02-07-30-029Z | 2016-08-10. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. THIS INFORMATIONAL BULLETIN PROVIDE INFORMATION ON THE PRODUCT QUALITY CENTER (PQC) ASSEMBLY REPLACEMENT PROCESS. |
| PI-0659-E | 2016-08-10. Service bulletin. STEERING. THIS PRELIMINARY INFORMATION BULLETIN PROVIDES A PROCEDURE TO INSPECT AND REPLACE THE STEERING COLUMN SEAL TO CORRECT A CUSTOMER CONCERN ON A RUBBER SQUEAK TYPE NOISE WHEN TURNING THE STEERING WHEEL DUE TO THE SEAL FOR THE INTERMEDIATE SHAFT, LOCATED AT THE FRONT OF DASH, RUBBING ON THE ROTATING INTERMEDIATE STEERING SHAFT. |
| SB-16-NA-042 | 2016-08-09. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. THIS INFORMATIONAL BULLETIN ANNOUNCES THAT GM IS OFFERING AN ANDROID AUTO FEATURE UPGRADE FOR 2016 MODEL YEAR VEHICLES. |
| SB-10-08-46-001C | 2016-08-09. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. "THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO CONTACT ONSTAR FOR HARD MUTE REQUEST TO CORRECT A CUSTOMER CONCERN WHEN THE RADIO IS ON, IT DOES NOT MUTE ENOUGH WHEN THE ONSTAR® TURN-BY-TURN NAVIGATION DIRECTIONS ARE ANNOUNCED DUE TO CUSTOMER IMPROPERLY SETTING THE RADIO VOLUME HIGH ENOUGH WHEN THE TURN-BY-TURN NAVIGATION MESSAGES ARE PLAYED. " |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.