Service bulletins for the 2015 Buick Regal
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.
1526 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 22-NA-074 | 2022-12-03. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system. |
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| 17-NA-040 | 2022-12-03. Service bulletin. SERVICE BRAKES, HYDRAULIC. This service bulletin provides a procedure to correct a condition of Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies. |
| 18-NA-180 | 2022-11-03. Service bulletin. ELECTRICAL SYSTEM. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information. |
| 22-NA-205 | 2022-11-02. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on Module Harvesting. |
| 99-00-89-019X | 2022-10-28. Service bulletin. STRUCTURE. This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program. |
| 10-00-89-006I | 2022-10-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only). |
| PIC5453D | 2022-10-17. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician that General Motors and General Motors of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation into the USA. |
| PIT5698C | 2022-10-17. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus. |
| PIP5621C | 2022-10-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN. This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC. |
| PIP5640A | 2022-10-17. Service bulletin. POWER TRAIN. This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission. |
| PI0592G | 2022-10-13. Service bulletin. ELECTRICAL SYSTEM. This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961). |
| 22-NA-195 | 2022-10-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on Handling Requests for Modifications to Permanently Import/Export Vehicles Between the U.S. and Canada. |
| 22-NA-009 | 2022-10-12. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters. |
| 15-00-89-004E | 2022-10-11. Service bulletin. POWER TRAIN; SUSPENSION; ENGINE AND ENGINE COOLING; SERVICE BRAKES, HYDRAULIC; STEERING. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. |
| 13-08-116-001H | 2022-10-11. Service bulletin. ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. |
| 09-06-04-026W | 2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2. |
| 07-06-01-016H | 2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement. |
| 06-00-89-031H | 2022-10-11. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification. |
| 05-06-04-022T | 2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. |
| 05-00-89-072F | 2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management. |
| 04-06-04-051G | 2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive. |
| 01-06-01-011M | 2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption. |
| 01-00-89-010Q | 2022-10-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern. |
| 00-06-01-012L | 2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts. |
| 16-NA-222 | 2022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.