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Service bulletins for the 2013 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.

1884 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIP4902J2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
GCUS-3-8482017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. 44180 02 - Customer Satisfaction. Certain vehicles may have key codes which were inappropriately handled by a third party which could increase the risk of vehicle theft. Dealers are to replace all applicable keys and lock cylinders with new key configurations.
PIC6018B2017-08-15. Service bulletin. VISIBILITY:WINDSHIELD; VISIBILITY:GLASS, SIDE/REAR. This Preliminary Information communication provides information to the technician about vehicles that may have cracks that cannot be felt from outside the glass. Technician will need to inspect the window for impact. If there is no impact found, replace the windshield.
PIP5180A2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have hard start, extended crank, or black smoke from the exhaust when starting. Technician will need to perform fuel quality test, spark test, and a compression test. Technician should also install a vacuum gauge prior to cold start and watch needle for signs of a sticking valve. Technician will need to review the latest version of PIP5029 and perform a cold compression test if the concern is only a Hard Start Cold.
PIT4733K2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This Preliminary Information communication provides information to the technician that customers may inquire as to the availability of OnStar bluetooth on their vehicle. Technician should be advised that Vehicles with Regular Production Option Code (UPF or UWE) offer Bluetooth through the OnStar system.
PIC5759B2017-08-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician about vehicles that have a message on the radio ?maximum number of phones are currently paired to the vehicle?. Dealer should advise the customer this is normal operation of the vehicle due to the maximum number of five phones can be paired to a vehicle.
PIT5236J2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will need to ensure campaigns 14395 or 15086 are completed. Technician will need to use Global Diagnostic System 2 and gather information and contact General Motors Technical Assistance Center for further assistance.
PIC4541F2017-08-15. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication provides information to the technician with a diagnostic tip for the OnStar back-up battery failure. Technician may find Diagnostic Trouble Code B1446 or B1447 and the OnStar LED is red. Technician should never disconnect the main vehicle battery or remove the OnStar fuse with the ignition key in any position other than off.
PIC5491C2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down, remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle. If the OnStar system is still inoperative continue with published Service Information diagnostics. Technician may need to contact General Motors Technical Assistance Center depending on the STID, Station ID, or OnStar Customer Identifier.
PIC5779D2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary Information communication provides the technician with information on the proper washing of the bright aluminum moldings to avoid the moldings from getting damaged. It is recommended that a non-alkaline solution be used for preparation & washing of the bright aluminum moldings.
PIT4911U2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
PIC58672017-08-15. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have that after the fuel tank is filled the gauge does not indicate full. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
PIT3099K2017-08-15. Service bulletin. EQUIPMENT. This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Technician can also contact Partech for assistance.
PIT5063C2017-08-15. Service bulletin. STEERING. This Preliminary Information communication provides information to the technician with a diagnostic tip service steering message or service stability message. Technician may find a Diagnostic Trouble Code C056E Sym 42 and a Diagnostic Trouble Code C0569 Sym 3A setting after a new steering gear assembly was installed. If Diagnostic Trouble Code C0710 Sym 71 is set it must be addressed first before performing a steering gear ?set-up? in Service Programming System. Steering Angle Sensor module Diagnostic Trouble Code C056D Sym 00 and it must be address first. Technician should be advised that Diagnostic Trouble Codes DTC C056E Sym 42 or C0569 Sym 3A will set when a steering gear assembly when is was replaced without Service Programming System programming.
PIC5822A2017-08-15. Service bulletin. STRUCTURE:FRAME AND MEMBERS; WHEELS; STRUCTURE:BODY. 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.
PIC5883A2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician about vehicles that have poor AM or FM radio reception. Technician will need to use Global Diagnostic System 2 and check the radio signal strength and compare with a like vehicle. If signal strength values are low on a strong radio station, inspect for proper orientation of the antenna connector at the back glass antenna grid.
PIC5870A2017-08-15. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles with radio speakers have poor audio quality, buzz, pop, static type noise or no audio. Technician should inspect the trunk mounted radio amplifier for any signs of moisture. Technician will need to Replace the amplifier if water is present and replace any terminals that have corrosion. Also water test the trunk, sunroof, back glass and roof areas. Technician will need to fix any water leaks and clean out all drain tubes.
PIC59042017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that the OnStar system will not connect. Technician should record module info per the latest version of PIC4310 and contact General Motors Technical Assistance Center.
PIC59012017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about the Samsung Galaxy S III will lose connection to the vehicle or does not connect to the vehicle. Customer can update the phone with the latest Android system software which begins with Android 4.4 version.
PIP4112M2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to first gear.
PIP4112L2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to first gear.
PIC5398B2017-08-15. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This Preliminary Information communication provides information to the technician about vehicles that have a mist from Instrument Panel vents, moisture on inside of windshield, water drips on driver?s foot or floor is wet. Technician will need to reposition the shift cable to the driver?s side of the vehicle and push slack of the cable and the insulator forward into engine compartment. Technician will also reposition the passenger side front carpet to inspect the evaporator case drain hose.
PIC5257C2017-08-15. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). This Preliminary Information communication provides information to the technician about vehicles that have a Service Stability message in the Driver Information Center. Technician may find a Diagnostic Trouble Code U0710 set. Technician should follow published Service Information diagnostics for Diagnostic Trouble Code C0710 and not U0710.
PIC58702017-08-15. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This Preliminary Information communication provides information to the technician about vehicles with radio speakers have poor audio quality, buzz, pop, static type noise or no audio. Technician should inspect the trunk mounted radio amplifier for any signs of moisture. Technician will need to Replace the amplifier if water is present and replace any terminals that have corrosion. Also water test the trunk, sunroof, back glass and roof areas. Technician will need to fix any water leaks and clean out all drain tubes.
PIC58692017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician that the compact disc player is unable to pause a song. These vehicles were not built with a pause button. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.