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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: Transmission and driveline are shown. Show all

Bulletins, newest first
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.
PIT5076C2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT:ELECTRICAL; STEERING:ELECTRIC POWER ASSIST SYSTEM. This Preliminary Information communication advises the technician to insure that global diagnostic service 2 diagnostic packages are up to date prior to learning the steering angle sensor for a diagnostic trouble code C710 symptom code 71 set in the electronic brake control module or the power steering control module. When rechecking for diagnostic trouble codes a U0074 U0077, U0180D, U01293, U0126, U0125, C0186, C0196, or C0287 are set and will not clear diagnose the Chassis bus. If no fault is found in the chassis bus check for an multiple diagnostic interface to data link connector issue. Technician is to try a different multiple diagnostic interface cable and attempt the steering angle sensor learn again following service information instruction then try to clear the codes again.
PIP5090D2017-08-15. Service bulletin. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL; POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT. 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. Technician will need to inspect the splines on the half shaft for damage. Technician should also inspect the splined end of the Power Transfer Unit for excessive wear.
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.
PIP4112N2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. 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.
PIP4990A2017-08-15. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This Preliminary Information communication provides information to the technician about vehicles with the service engine soon lamp that comes on. Technician may find Diagnostic Trouble Code U0101. Technician should review the appropriate Service Information diagnostics for DTC U0101. Also gather all other diagnostic trouble codes in the vehicle and which modules they are set in. The transmission connector pins should be checked for damaged terminals or poor terminal fit. Also inspect the under hood fuse block for damaged terminals or poor terminal fit and mis-positioned fuses in fuse block. Inspect the ground for the Transmission Control Module. Technician should refer to Service Information automatic transmission controls schematics to determine the ground identification.
PIP4990C2017-03-20. 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-03-07-29-004K2016-08-06. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. THIS INFORMATIONAL BULLETIN PROVIDE INFORMATION ON THE OPERATING CHARACTERISTICS OF A MANUAL TRANSMISSION.
PI0703B2016-06-13. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP5090D2016-04-26. Service bulletin. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-12222-B2016-04-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-12222B-A2016-03-16. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP-5090-D2014-01-29. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. GM: SOME VEHICLES MAY EXPERIENCE A VIBRATION OR SHUDDER UPON ACCELERATION FROM A STOP. THE RIGHT FRONT AXLE SHAFT MAY NOT B FULLY SEATED INTO THE PTU. *JS
PI-0703-B2013-04-23. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. CADILLAC/BUICK: ON DRIVER INFORMATION CENTER (DIC), SERVICE REAR AXLE MESSAGE WILL APPEAR AND REQUIRES AN UPDATE CALIBRATION TO REAR DIFFERENTIAL CLUTCH CONTROL MODULE (CCM). MODELS 2010-2012 LACROSSE, SRX. *PE
SB-120822012-06-18. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY. GM: SERVICE UPDATE FOR INVENTORY VEHICLES ONLY. REAR DIFFERENTIAL MODULE SEAL LEAK. EXPIRES MAY 31,2013. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPLACE THE CLUTCH PISTON SEAL IN THE REAR DIFFERENTIAL MODULE. *JS
PI0670B2012-05-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. GM: DIAGNOSTIC TIPS FOR DTC P0776, SLIPS WHEN REVERSE IS SELECTED OR NO REVERSE. SLIP OR FLARE WHEN SHIFTING INTO THIRD/ FIFTH GEAR OR NO THIRD/FIFTH GEAR. ALSO INCLUDED MODEL CHEVROLET CAPTIVA SPORT MODEL YEAR 2012. MODEL CHEVROLET ORLANDO (CANADA) MODEL YEAR 2012. *JS
PI-0324-C2012-04-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE AND ENGINE COOLING. GMC/CHEVROLET/BUICK: TRANSMISSION PUMP NEEDS INSPECTING DUE TO ENGINE CRANKING BUT FAILS TO START, HAS NO FORWARD, NO REVERSE, TRANSMISSION LEAKS, HARD SHIFT AND NO CRANKING. *PE UPDATED 2/25/13. *PE UPDATED 1/29/2014 *JS
PI-06702012-04-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. GMC/BUICK/CHEVROLET: TRANSMISSION SLIPS WHEN IN REVERSE OR NOT IN REVERSE, 3RD GEAR OR NO 3RD GEAR, FLARE SHIFTING TO 5TH OR NO 5TH GEAR. *PE UPDATED 4/17/12. *PE
PIP-49932012-04-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). BUICK/CHEVROLET: DUE TO A COLLISION THAT CAUSED CONTACTORS TO OPEN, SERVICE CHARGING SYSTEM MESSAGE, MIL MAY BE INOPERATIVE. *PE
PIP-4624-M2012-04-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. CHEVROLET/BUICK/GMC: RESTRICTION, THROUGH THE PQC, HAS BEEN PLACED ON THE VALVE CONTROL SOLENOID (TEHCM) P/N 24256524 AND 24265367, TO ASSIST ENGINEERING FEEDBACK PRODUCT. *PE
PIP-49902012-03-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. BUICK/CHEVROLET/GMC/PONTIAC/SATURN: SOME MODEL YEAR VEHICLES MAY EXPERIENCE SERVICE ENGINE SOON (SES) LAMP ILLUMINATED. ISSUE MAY BE CAUSED BY THE CONTROL SOLENOID/MODULE ASSEMBLY OR MAY HAVE DAMAGED OR POOR TERMINALS FOR UNDER HOOD FUSE BLOCK. *PE

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