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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.

By type

By component

By trouble code

By topic

Only bulletins with component: Wiring and fuses are shown. Show all

Bulletins, newest first
1300890082023-12-11. Service bulletin. ELECTRICAL SYSTEM:WIRING. GM Wiring Repair Strategy Information
PIT59622023-01-30. Service bulletin. ELECTRICAL SYSTEM:WIRING. This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
PIC5852C2020-08-10. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:WIRING; EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary Information communication provides information to the technician about vehicles that when attempting to start vehicle "No Fob Detected" message is displayed. Technician will find the Key FOB works and the vehicle will start with the key FOB is placed in the pocket. Technician will need to replace the Key FOB with the Key FOB with Passive Entry Passive Start.
100089005G2019-05-13. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
100089005H2019-03-18. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
10-00-89-005C2018-06-04. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT. This informational bulletin is a revision for 10-00-89-005B to add the 2014 model year and labor codes.
PI0924A2018-05-29. Service bulletin. LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK; STRUCTURE:BODY:TRUNK LID; ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNK. This preliminary bulletin provides a procedure to install a new relay to control the trunk opening up when the button has been accidently pressed.
10-00-89-005E2018-05-21. 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.
13-00-89-008A2018-05-07. Service bulletin. ELECTRICAL SYSTEM:WIRING. This informational bulletin communicates GM wiring repair strategy information.
PI0659A2018-04-16. Service bulletin. ELECTRICAL SYSTEM:WIRING; STEERING. This preliminary informational bulletin provides information on inspecting the steering column seal, adjusting the electronic power steering wire harness bracket and replace the steering column seal to remove a groan, squeak or rubbing type noise when turning the steering wheel.
13-08-116-0012018-04-16. Service bulletin. ELECTRICAL SYSTEM:WIRING. This technical bulletin provides a procedure on suspected tampering due to aftermarket ALDL or DLC interface devices causing multiple issues.
PI09242018-04-02. Service bulletin. ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNK. This preliminary information bulletin provides recomandations for Intermitent Unwanted Trunk Opening While Vehicle is Parked Concern.
13-00-89-0082018-04-02. Service bulletin. ELECTRICAL SYSTEM:WIRING. This informational bulletin provides information for GM wiring repair.
100089005D2017-12-22. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty informational bulletin advised the technician that when performing a wiring repair, more information is required.
PI0745C2017-12-22. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS. This preliminary informational bulletin provides a procedure on how to correctly check and adjust fuses within the instrument panel fuse block for concerns with components fused through the instrument panel fuse block
10-00-89-005F2017-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:WIRING. This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information.
13-00-89-008A2017-08-15. Service bulletin. ELECTRICAL SYSTEM:WIRING. This informational bulletin communicates GM wiring repair strategy information.
PIP4920K2017-08-15. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication advises the technician that the Battery Energy Control Module, Auxiliary Transmission Fluid Pump, Starter Generator, Generator Battery Control Wiring Junction Block, Generator Battery Disconnect Relay, Battery Energy Control Module, Battery Disconnect Switch Wiring Harness, Battery Disconnect Switch Wiring Harness, Generator Battery, and Generator Control and Battery Module will be placed on a parts restriction through General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
PIC5670A2017-08-15. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS. This Preliminary Information communication provides information to the technician about vehicles that after several hours of dingy towing the vehicle's battery goes completely dead. Dealer should advise the customer that if they use key to start the vehicle to pull Fuse #22 while towing. Dealer should advise the customer that have Push-To-Start to disconnect the negative battery cable.
PIP4924C2017-08-15. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; ELECTRICAL SYSTEM:WIRING. This Preliminary Information communication provides information to the technician about vehicles that have Service Engine Soon Malfunction Indicator Lamp on and a misfire. Technician may find Diagnostic Trouble Codes P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, P0277, P2146, P2149, P2152, P2155, P216A, and or P216D. Technician will need to inspect the fuel injector wiring harness for rub through or internal wire opens. If this concern is found repair or replace the injector harness as needed.
PIC5720A2017-08-15. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. This Preliminary Information communication provides information to the technician on the steps needed to diagnose and repair vehicles that may have buzz or hum noise is heard in the right front at times. Also may have a Antilock Braking System Malfunction Indicator Lamp, Service Brake Assist Message or Service Engine Soon Malfunction Indicator Lamp may be displayed. The following Diagnostic Trouble Code may be set C027B, C0040 and P0CBE. The technician will inspect for the wire harness under the hood to be contacting the crank pulley, air conditioning compressor pulley or accessory drive belt due to misrouting or not secured properly. Repair wiring as needed or replace the harness, correct routing and properly secure. Once wiring repairs are complete confirm proper brake booster vacuum pump operation.
PIP5209A2017-08-15. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This Preliminary Information communication provides information to the technician about vehicles that have Diagnostic Trouble Code P00C6 and/or P228C set. Technician will need to inspect the terminals at the Engine Control Module for fit and tension as well as the crimp to wire connection. Terminals to inspect in the ECM are connector x2 terminals 3, 18, and 19 for the fuel rail pressure sensor. Also connector x3 terminals 16 and 32 for the high pressure fuel pump.
10-00-89-005F2017-07-18. Service bulletin. ELECTRICAL SYSTEM:WIRING. This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information.
PIC5720B2017-03-17. Service bulletin. ELECTRICAL SYSTEM:WIRING; SERVICE BRAKES, AIR:ANTILOCK. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS NEEDED TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE BUZZ OR HUM NOISE IS HEARD IN THE RIGHT FRONT AT TIMES. ALSO MAY HAVE A ANTILOCK BRAKING SYSTEM MALFUNCTION INDICATOR LAMP, SERVICE BRAKE ASSIST MESSAGE OR SERVICE ENGINE SOON MALFUNCTION INDICATOR LAMP MAY BE DISPLAYED. THE FOLLOWING DIAGNOSTIC TROUBLE CODE MAY BE SET C027B, C0040 AND P0CBE. THE TECHNICIAN WILL INSPECT FOR THE WIRE HARNESS UNDER THE HOOD TO BE CONTACTING THE CRANK PULLEY, AIR CONDITIONING COMPRESSOR PULLEY OR ACCESSORY DRIVE BELT DUE TO MISROUTING OR NOT SECURED PROPERLY. REPAIR WIRING AS NEEDED OR REPLACE THE HARNESS, CORRECT ROUTING AND PROPERLY SECURE. ONCE WIRING REPAIRS ARE COMPLETE CONFIRM PROPER BRAKE BOOSTER VACUUM PUMP OPERATION.
SB12-08-132-001A2013-07-09. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; ELECTRICAL SYSTEM. GENERAL MOTORS: ON SOME TRUCKS AND PASSENGER VEHICLES, ACCESSORY POWER OUTLETS (APO) AND TRAILER LIGHTING ARE COMMON ACCESSED ELECTRICAL SYSTEMS THAT ARE AFFECTED BY DEVICES THAT ARE PLUGGED IN AND BECOME INOPERATIVE DUE TO AN OPEN FUSE AND NO PROBLEM WITH VEHICLE IDENTIFIED. MODELS YEARS 2010-2014 TRUCKS AND PASSENGER. NO MODELS. *PE

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