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
| 030603004W | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements. |
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| 18NA045 | 2018-05-21. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to install a pigtail harness to correct the rear tail lights from flashing fast when hot. |
| 18NA073 | 2018-05-21. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Bulletin provides graphics, information and guidelines for engine component wear that require repair and not engine replacement. |
| 18NA067 | 2018-05-21. Service bulletin. WHEELS; SERVICE BRAKES. This informational bulletin provides information for cleaning brake dust off of aluminum or chrome wheels. |
| 16NA338 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. This Bulletin provides guidelines for Dealers required to contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns. |
| 15-NA-069 | 2018-05-21. Service bulletin. EQUIPMENT. This informational bulletin provides information for technicians on the reuse of fasteners and the proper reading of torque specifications. |
| 00-03-10-006L | 2018-05-21. Service bulletin. TIRES; TIRES:TREAD/BELT; TIRES:BEAD; WHEELS:RIM. This informational bulletin provides additional information to the technician on how to check for Tire Radial Force Variations and the difference between balancing a flange and flangeless rim. |
| PI1187B | 2018-05-21. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES; VISIBILITY:WINDSHIELD. This preliminary informational bulletin provides windshield replacement information to correct a customer concern that the inside rear view mirror is loose or that the mirror mounting bracket is loose or has fallen off. |
| 15-06-03-002A | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:ELECTRICAL. This informational bulletin provides information to dealership personnel regarding original equipment battery part numbers and AC Delco replacement battery approved warranty part numbers. |
| 10-00-89-005E | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty administration bulletin adds the 2016 model year to a communication which provides dealership personnel revised wiring repair labor operations and required additional information. |
| PI1374F | 2018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This preliminary informational bulletin provides radio programming information to correct customer concerns about no XM audio or time shift, radio lock-up, slow response, vertical line between clock and temperature, poor FM reception (Truck Only). |
| 15-NA-046 | 2018-05-21. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR; AIR BAGS:FRONTAL. This technical bulletin provides repair information for replacing the steering wheel airbag to correct a customer concern that the steering wheel airbag is not flush to the steering wheel and/or it is difficult to depress airbag to engage the horn. |
| PIC5822E | 2018-05-21. Service bulletin. STRUCTURE. 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. |
| 05-08-46-009D | 2018-05-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin adds the 2014 and 2015 model years to information of a language change for OnStar System (U.S. and Canada only). |
| 12-07-30-001E | 2018-05-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on the Product Quality Center (PQC) assembly replacement process for Service Agents not required to contact PQC prior to assembly replacement. |
| PI1445 | 2018-05-07. Service bulletin. EQUIPMENT. This preliminary informational bulletin provides repair information for a customer concern of Malfunction Indication Lamp (MIL) on, and a technician my find DTC P2227 set. |
| 12-06-01-003B | 2018-05-07. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information for repairing engine front cover oil leak, sealing surface preparation and applying RTV sealant. |
| PI1440 | 2018-05-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system. |
| 13-00-89-008A | 2018-05-07. Service bulletin. ELECTRICAL SYSTEM:WIRING. This informational bulletin communicates GM wiring repair strategy information. |
| 09-00-89-016D | 2018-05-07. Service bulletin. EQUIPMENT. This warranty administration bulletin provides retail and wholesale service personnel with the policies and the warranty claims submission procedures that support Labor Operation 0600014 ? Suspected Tampering or Vehicle Modifications. |
| 12-06-01-008B | 2018-05-07. Service bulletin. EQUIPMENT. This informational bulletin provides dealership personnel information on unscheduled supplemental services (including flushing services and additives) and proper use of GM simplified maintenance schedules (Canada only). |
| PI1435 | 2018-05-07. Service bulletin. EQUIPMENT. This preliminary informational bulletin provides technicians a diagnostic tip for BCM DTC B101D SYM F0 set with no other symptoms. |
| 15-00-90-001 | 2018-05-07. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides technicians with diagnostic tips for preventing oil leaks after changing oil and filter. |
| 02-07-30-029X | 2018-05-07. Service bulletin. EQUIPMENT. This informational bulletin provides information on the PQC assembly replacement process - for dealers required to contact PQC prior to replacing an assembly (U.S. and Canada only). |
| PIC6042 | 2018-05-07. Service bulletin. STEERING. This Preliminary Information communication provides information to the technician about vehicles that if replacement of either shift paddle is necessary, the steering wheel does not need to be replaced nor does it need to be removed to replace either shift paddle. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.