Service bulletins for the 2015 Cadillac XTS
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.
1634 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 14891 | 2017-02-01. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. 14891 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REMOVE THE A/C ACTUATOR, ROTATE THE BYPASS DOOR TO THE FULL-OPEN POSITION, AND REINSTALL THE ACTUATOR ON CERTAIN VEHICLES. THESE VEHICLES MAY HAVE BEEN BUILT WITH AN INCORRECT A/C VENT ASSEMBLY. THIS CONDITION WILL PREVENT ADEQUATE HEATING AND COOLING FOR PASSENGERS IN THE REAR SEATS. |
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| 14395A | 2017-02-01. Service bulletin. ELECTRICAL SYSTEM. 14395A - CUSTOMER SATISFACTION PROGRAM (REVISED LABOR TIME). ON SOME 2015 MODEL YEAR BUICK ENCORE, LACROSSE, REGAL, AND VERANO; CADILLAC ATS, CTS, ELR, ESCALADE, SRX AND XTS; CHEVROLET COLORADO, CORVETTE, CRUZE, EQUINOX, IMPALA, MALIBU, SILVERADO, SONIC, SPARK, SS, SUBURBAN, TAHOE, TRAX, AND VOLT; AND GMC CANYON, SIERRA, TERRAIN, AND YUKON 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. |
| 15038 MESSAGE | 2017-01-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 15038 - DEALER MESSAGE ONLY. SELECT 2015 VEHICLES WILL RECEIVE A SOFTWARE DOWNLOAD VIA ONSTAR® TO UPDATE THE SOFTWARE FOR THE ELECTRONIC CLIMATE CONTROL (ECC) SYSTEM. THE UPDATE WILL BE PERFORMED ON DEALER INVENTORY VEHICLES, WITH THE UPDATE OCCURRING DURING THE NIGHT TIME HOURS OF 1AM TO 5AM EDT. UPDATES WILL BE ROLLED OUT TO THE INVENTORY STARTING 6/29/2015 AND COMPLETE BY END OF SEPTEMBER 2015. NO FURTHER ACTION IS REQUIRED BY THE DEALER. THIS UPDATE WILL TAKE APPROXIMATELY 15 MINUTES. |
| 11-08-49-001R | 2017-01-19. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REMOVE THE TRANSPORT MODE ON MESSAGE DISPLAYED IN THE DIC DUE TO VEHICLES SHIPPED OVER LONG DISTANCES OUTSIDE THE U.S. AND CANADA. |
| 07-03-10-008E | 2017-01-19. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; TIRES. THIS INFORMATIONAL PROVIDES INFORMATION ON SLIGHT OR MILD TIRE FEATHERING AND RECOMMENDED PRACTICES. |
| PIT5401F | 2016-11-03. 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. |
| PIT5389A | 2016-11-03. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS FOR DIAGNOSING THE CONCERN. THE VEHICLE MAY BE UNABLE TO CONNECT TO ONSTAR USING THE WHITE, BLUE OR RED ONSTAR BUTTONS. |
| PIP5331C | 2016-11-03. 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. |
| PIP5189B | 2016-11-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF BLACK SMOKE WHEN STARTING THE VEHICLE AFTER SITTING. |
| PIP5168E | 2016-11-01. Service bulletin. ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE THE CONCERN, AND THE STEPS TO REPAIR THE CONCERN OF THE VEHICLE CRANKS BUT DOES NOT START. THE TECHNICIAN IS TO INSPECT FOR A SHEARED CAM PIN IN THE ENGINE. |
| PIC6198A | 2016-11-01. Service bulletin. ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON STEPS TO PERFORM TO DETERMINE IF THE CUSTOMER'S BATTERY DRAIN CONCERN IS BEING CAUSED BY A KNOWN CONCERN WITH BLUETOOTH CALL TRANSFER OPERATION WHEN EXITING THE VEHICLE. IF THE CONCERN IS DUPLICATED AT THE DEALER WITH THE ONSTAR LED IS STILL GREEN AFTER THE VEHICLE IS TURNED OFF AND THE BLUETOOTH CALL WAS DISCONNECTED. DEALER SHOULD ADVISES THAT ENGINEERING IS AWARE OF THE CONCERN AND IS CURRENTLY INVESTIGATING THE ISSUE. |
| PIC6195 | 2016-11-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN REPAIR INFORMATION PER MODEL YEAR AND OPTION CONTENT TO HELP DIAGNOSE THE SERVICE DRIVER ASSIST MESSAGE ON THE DRIVERS INFORMATION CENTER. |
| PIC6193A | 2016-10-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER FOR FURTHER INSTRUCTIONS. THE CONCERN IS THE RADIO MAY BE UNABLE TO SAVE XM FAVORITE STATIONS. |
| PIC6193 | 2016-10-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN NOT TO MAKE ANY REPAIRS OR REPLACE ANY PARTS. THE TECHNICIAN IS TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER TO REVIEW A CONCERN WHEN THE VEHICLE'S RADIO IS UNABLE TO SAVE A XM PRESET AFTER SAVING PRESETS. |
| PIC6187A | 2016-10-26. Service bulletin. EQUIPMENT:ELECTRICAL. 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. |
| PIC6110B | 2016-10-25. Service bulletin. EQUIPMENT:ELECTRICAL. THIS PRELIMINARY INFORMATION COMMUNICATION FOR THE DEALER TO PLEASE COMMUNICATE TO THE CUSTOMER THIS CONDITION IS A NORMAL OPERATING CHARACTERISTIC OF THEIR VEHICLE. CUSTOMER'S RADIO TIMESHIFT AUDIO PLAYBACK IS CHOPPY, DISTORTED, SKIPPING, OR GARBLED. |
| PIC6054C | 2016-10-25. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN NOT TO REPLACE ANY PARTS AND TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. VEHICLE'S RADIO DISPLAY MAY BE SLOW TO TURN ON WHEN STARTING THE VEHICLE IF THE DOORS WERE NOT LOCKED. |
| PIC5374D | 2016-10-25. 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. |
| PIC5260A | 2016-10-25. Service bulletin. VISIBILITY; EQUIPMENT. 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. |
| PIC5088F | 2016-10-25. 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. THE VEHICLE'S XM RADIO ONLY HAS XM PREVEIW CHANNELS. |
| PIC4935E | 2016-10-25. Service bulletin. 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. |
| PIC4707E | 2016-10-25. Service bulletin. EQUIPMENT:ELECTRICAL. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN TO DIAGNOSE THE CONCERN AND THE STEPS TO REPAIR THE CONCERN. THE VEHICLE'S XM TRAVEL LINK MAY BE INOPERTIVE. |
| PIT5074J | 2016-10-21. Service bulletin. ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT THE USE OF J-35616-64B TERMINAL TEST PROBE, REPLACEMENT TERMINALS, AND TERMINATED LEADS. THE J-35616-64B IS THE LATEST TEST PROBE RELEASED FOR CHECKING TENSION OR PROBING THE .64 SERIES TERMINALS. THE TEST PROBE TERMINAL HAS BEEN RELEASED IN THE TERMINAL REPAIR KIT (J-38125-620H) LOCATED IN LEAR TRAY 7 PART NUMBER 963716-2. THERE ARE 5 TERMINATED LEADS IN A PACKAGE PART NUMBER IS 13505346, WHICH CAN BE ORDERED THROUGH YOUR NORMAL GENERAL MOTORS CUSTOMER CARE AND AFTERSALES PARTS CHANNEL |
| PIP4786C | 2016-10-20. Service bulletin. ENGINE AND ENGINE COOLING. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE LOW OIL PRESSURE MESSAGE. TECHNICIAN MAY ALSO FIND A DIAGNOSTIC TROUBLE CODE P0521 IN THE ENGINE CONTROL MODULE. TECHNICIAN SHOULD FOLLOW ALL PUBLISHED SERVICE INFORMATION DIAGNOSIS. WHEN USING A SCAN TOOL IF THE OIL PRESSURE IS LOW BUT THE OIL PRESSURE AT THE OIL FILTER HOUSING IS CORRECT, TECHNICIAN SHOULD INSPECT THE VALVE LIFTER OIL FILTER FOR DEBRIS/SLUDGE THAT COULD BE RESTRICTING OIL FLOW TO THE OIL PRESSURE SENSOR. TECHNICIAN SHOULD REMOVE THE VALVE LIFTER OIL FILTER AND CLEAN IT. IF THE VALVE LIFTER OIL FILTER CANNOT BE CLEANED REPLACE IT. |
| PIC6198 | 2016-10-20. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF A DEAD BATTERY AFTER LEAVING THE VEHICLE DURING A BLUETOOTH CALL. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.