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Service bulletins for the 2012 Buick LaCrosse

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.

1830 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
PIP4959E2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician with information regarding high misfire rates always on #1 cylinder. A customer may complain of misfires or roughness on cold start up with a P0300 diagnostic trouble code. Technician is to add coolant dye to the system and run the engine through warm up to circulate the dye. Pressurize the cooling system after a cold soak and inspect the cylinder with a bore scope for coolant dye. Dye is used to identify coolant over residual fuel being that might be left in the cylinder. The technician is not to replace the cylinder head as it will not correct this concern. In some cases it is necessary to remove the head for inspection. Do not replace the engine for small surface pock marks or a pitting appearance this is normal and do not connect to coolant passages. Usually if porosity is present there will be a break in the carbon ring. Only replace the engine if true porosity is found. Technician is to call Product Quality Center with the latest version of bulletin 02-07-30-029 if porosity is found and engine replacement is required.
PIP5209C2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication advises the technician to follow this Preliminary Information if there is a diagnostic trouble code P00C6 and or P228C set and normal Service Information diagnostics didn?t lead to a repair. Technician is to recheck the terminals at the Engine Control module for fit and tension as well as the crimp to the wire. The engine control module terminals to inspect are in the X2 connector. Inspect terminal number 3, 18 and 19 for the fuel rail pressure sensor and in the X3 connector terminals 16 and 32 for the high pressure fuel pump. The diagnostic trouble codes could set with as little as a 2 ohm resistance reading on these circuits. If any concerns are found replace the affected terminals and verify the repair.
PIT53992017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about connectivity concerns when connecting an Apple device via USB cord. Technician should insure the customer is using an original equipment manufacturer Apple USB cable.
PIC4310L2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
PIC5953A2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
PIT5264C2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Due to the existing cellular provider not having roaming agreements in areas outside of Canada to support transmitting of the packet data required for Turn-By-Turn feature to operate. The customer has 3 options while traveling through the United Sates. First if the vehicle is equipped with a navigation radio they can request a "Destination Download" to the vehicle. Second if the customer uses the OnStar RemoteLink app they can send the directions to the vehicle. The third option would be to have the vehicle loaded with a "500 phone number" The customer will no longer be able to use their Hands Free Calling minutes when the new 500 phone number is loaded. If a customer chooses to restore Hands Free Calling in the future a new phone number will be assigned to the vehicle; previous phone numbers are not available.
PIC6060A2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary Information communication provides information to the technician about vehicles that may have a no crank concern with a fob program message displayed. The customer may indicate at times after unlocking the vehicle using the unlock button on the key fob, they enter the vehicle and depress the start button and the vehicle does not respond. If this concern is duplicated the technician should exit and lock the vehicle. Wait 5 minutes, depress the unlock button on either fob 3-5 times within 10 seconds, and then enter the vehicle. Technician will find that the vehicle will not crank and a message may display on the Driver Information Center ?! Remote Learn Pending Please Wait? or ?Ready For Fob Three? there will be no other response from the vehicle. If either message is displayed or the customer has commented on a similar concern, use the key to check the rotation of the driver?s door lock cylinder. If the key rotates further when unlocking then the normal 90 degrees, the vehicle may have been assembled with the incorrect door lock cylinder to latch rod. Technician will replace the incorrect rod.
PIP4548D2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This Preliminary Information communication advises the technician what to inspect if codes P0016 and/or P0017 are setting on a properly timed engine or a condition of the vehicle cranks but will not start. Technician should inspect the respective intake or exhaust camshaft reluctor to see if it has spun on the camshaft. The reluctor cannot be repositioned so the camshaft must be replaced. The new camshafts come with the reluctor already pressed on in the correct position.
PIP52642017-08-15. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician on the step to diagnose and repair vehicles that may have engine misfire and check engine light with any or all cylinder misfires only on deceleration. Technician will need to remove the accessory belts and drive or brake stall at signature RPM. If the concern is gone inspect for debris in the belt or pulleys causing a jump and false misfires. Also lift the engine to unload the engine mounts and test again. If concern is gone then inspect for a ground out concern with the mounts causing false misfires.
PIP4993B2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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.
PIC3278F2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. Technician will need to determine what type of call the customer is having that is unwanted. The vehicle may receive an incoming call just like any other phone. Typically the customer will hear the phone ringing in the vehicle. This scenario also includes incoming Bluetooth calls. One type of unwanted call can be made if the key pad is faulty the OnStar system will try to make a blue button call for shorted voltage in the circuits. The OnStar module could have an internal fault and produce a "Phone Unavailable" audio message also it may have a Diagnostic Trouble Code U1500 or B1000. Refer to diagnostics for the Diagnostic Trouble Code making sure to follow any applicable Bulletins or Preliminary Information sheets. A "Ready" or "OnStar ready" audio message heard while driving. In some cases it has been found that the customer is inadvertently pressing the ?push to talk? button on the steering wheel controls. On rare occasions, other issues in the steering column or Steering Wheel Control system may induce this concern.
PIC4310K2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
14-00-89-003A2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and now is refered to Article 3.2.9 of the 1st addition manual for details of Technician Identification and Accounting of Labor Time
07-08-49-020I2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides a quick guide to updating which model vehicle after replacing the IPC.
04-00-89-015H2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause and correction; Labor Time; Technician ID and acoutablity of labor time; Proper documentation and retension of warranty parts; Accurate sublet charges and receipts; Add on concerns after the Job Card has been written.
08-08-44-015E2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This informational bulletin provides information on Inappropriate Warranty Claims Submitted for Damaged Radios and IPCs
04-00-89-015I2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause and correction; Labor Time; Technician ID and acoutablity of labor time; Proper documentation and retension of warranty parts; Accurate sublet charges and receipts; Add on concerns after the Job Card has been written.
06-00-89-026M2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty bulletin provides labor operation numbers for customer concerns that can't be duplicated.
13-00-89-004J2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary.
11-00-89-005H2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty bulletin clarifies the use of dealer empowerment to satisfy the customer.
PIC5611E2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; BACK OVER PREVENTION: CAMERA SYSTEM. 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.
PI0281F2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
16-NA-3552017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. this informational bulletin provides Information on Using MyBuick, MyCadillac, MyChevrolet, and MyGMC Phone Applications to Control GM Accessory Remote Start Kits.
11-00-89-005K2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information on Dealer Empowerment Labor Operations and Customer Enthusiasm.
10-08-110-001F2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on proper use of floor mats.

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