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
Only bulletins with component: Transmission and driveline are shown. Show all
| 02-07-30-029V | 2018-05-21. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING; EQUIPMENT. This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified. |
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| PI0938A | 2018-05-21. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. This preliminary bulletin provides information on what labor operation number to use for various electrical/electronic control issues. |
| 17-NA-066 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow test. |
| 100729001C | 2018-05-21. Service bulletin. POWER TRAIN. This informational bulletin provides information for the 6-Speed manual transaxle (RPOs MF3, MR5, MR6, MZ0, MZ4, MZU) current service strategy for transmissions requiring internal repairs (ie: synchronizer, gear or bearing replacement) is to replace the unit as an assembly. |
| 080730035C | 2018-05-21. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid. |
| 060089031E | 2018-05-21. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. This informational bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification. |
| 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. |
| PIP5090F | 2018-05-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary Information communication provides information to the technician about vehicles that may have a noise, vibration or shudder on acceleration from a stop. Technician should replace the right hand axle shaft retaining ring using part number 90223082. Technician will need to inspect the splines on the half shaft for damage. |
| PIC5611C | 2018-05-07. Service bulletin. POWER TRAIN; BACK OVER PREVENTION. This Preliminary Information communication provides information to the technician about the rear view camera options on the vehicles equipped with rear view camera. The rear view camera brightness can be adjusted on some models while the transmission is in reverse and using the Menu or Select button. To turn off or on the guidelines in the rear view camera, use the radio display Config icon then Display, then the guidelines option. |
| PIP5090E | 2018-05-07. Service bulletin. POWER TRAIN. This Preliminary Information communication provides information to the technician about vehicles that may have a noise, vibration or shudder on acceleration from a stop. Technician should replace the right hand axle shaft retaining ring using part number 90223082. Technician will need to inspect the splines on the half shaft for damage. |
| 16NA338 | 2018-05-07. Service bulletin. POWER TRAIN. This Bulletin provides guidelines for Dealers to determine whether or not they need to contact the PQC for an engine, transmission or transfer case assembly replacement and information explaining the PQC process, Global Warranty Management Transaction submission, vehicle repair record retention and proper handling of assembly returns. |
| PI1219 | 2018-05-07. Service bulletin. POWER TRAIN. This preliminary bulletin provides information not to replace the turbocharger for a crack found during inspection. |
| PIP5296B | 2018-01-22. Service bulletin. POWER TRAIN. This Preliminary Information communication advises the technician of a possible grind or growl noise from the transmission while moving. If the technician disassembles the transmission, technician may find a front differential drive pinion gear bearings and or differential carrier bearings are damaged. Technician will need to contact General Motors Technical Assistance Center before attempting to remove the damaged bearings. |
| 06-00-89-031C | 2017-12-22. Service bulletin. POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information to dealership personnel on proper engine and automatic transmission/transaxle identification. |
| 030729004I | 2017-12-22. Service bulletin. POWER TRAIN. This informational bulletin was created for the Manual Transmission Operating Characteristics. The different noises caused by driver habit, weather conditions , and normal manual transmission noises. |
| 040310013I | 2017-12-22. Service bulletin. POWER TRAIN. This informational bulletin provides information on driving characteristics of rear wheel drive vehicles and winter tires, tire responses to road conditions and application tips. |
| 16-NA-338 | 2017-08-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 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. |
| PIP5296A | 2017-08-15. Service bulletin. POWER TRAIN. This Preliminary Information communication advises the technician of a possible grind or growl noise from the transmission while moving. If the technician disassembles the transmission, technician may find a front differential drive pinion gear bearings and or differential carrier bearings are damaged. Technician will need to contact General Motors Technical Assistance Center before attempting to remove the damaged bearings. |
| PIP4993C | 2017-08-15. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Charging System, Battery Saver message Or Malfunction Indicator Lamp on, and/or charging system inoperative. Technician will use Global Diagnostic System 2 and clear the Diagnostic Trouble Codes in the Hybrid Powertrain Control Module and the Battery Energy Control Module. Then turn the ignition off for a minimum of 2 minutes to allow the high speed local area network and powertrain expansion bus to power down. Start the car and monitor the charging system voltage. If the charging system is still inoperative there may be a logic lock condition. Disconnect the 12V battery and perform a Global Capacitive Discharge and repeat steps again. |
| PIT5442 | 2017-08-15. Service bulletin. POWER TRAIN; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician of an engine power reduced message on the driver information center after performing the Canada Onstar® 4G upgrade. If the concern is present park the vehicle outside and call General Motors Technical Assistance Center. |
| PIP5296 | 2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary Information communication advises the technician of a possible grind or growl noise from the transmission while moving. If the technician disassembles the transmission, technician may find a front differential drive pinion gear bearings and or differential carrier bearings are damaged. Technician will need to contact General Motors Technical Assistance Center before attempting to remove the damaged bearings. |
| PI1521 | 2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STEERING; POWER TRAIN. This preliminary informational bulletin provides repair information to correct a customer concern of loss of power steering assist, hard to steer, and/or "Service Power Steering" message on in DIC. |
| PIP4990C | 2017-03-20. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT SOME VEHICLES MAY HAVE A SERVICE ENGINE SOON THAT COMES ON. TECHNICIAN MAY FIND A DIAGNOSTIC TROUBLE CODE U0101 CURRENT OR STORED HISTORY. TECHNICIAN SO CHECK TERMINAL PIN FIT AT TRANSMISSION CONNECTOR, UNDER HOOD FUSE BLOCK. ALSO THE TRANSMISSION CONTROL MODULE GROUND WILL NEED TO BE INSPECTED. TECHNICIAN WILL REVIEW THE APPROPRIATE SERVICE INFORMATION DIAGNOSTICS FOR DTC U0101. |
| SB-03-07-29-004K | 2016-08-06. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. THIS INFORMATIONAL BULLETIN PROVIDE INFORMATION ON THE OPERATING CHARACTERISTICS OF A MANUAL TRANSMISSION. |
| SB-08-24-15 | 2016-02-04. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER. GENERAL MOTORS: PARTS FOR MOST VEHICLES, CLUTCH, MASTER CYLINDER ASSEMBLY ARE, REQUIRED AND REQUESTED, TO BE RETURNED AND NEED TO REORDER REPLACEMENT PARTS USING SAME PART NUMBERS. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.