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Service bulletins for the 2011 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.

1641 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Brakes are shown. Show all

Bulletins, newest first
PIC5428F2017-08-15. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP; SERVICE BRAKES, AIR:ANTILOCK; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE; SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have the Antilock Braking System, Service Traction Control System, and/or Service Stabilitrak lights are on. The Electronic Brake Control Module may have one or more of the following Diagnostic Trouble Codes C0035-C0050 with specifically symptom 18, 5A, or 0F. Technician will gain access to the correct wheel bear per the Diagnostic Trouble Code that is set. If debris is found on the magnetic encoder ring it will needed to be cleaned.
PIT4943C2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442 has been verified do not disturb any of the fuel system components. The technician now can use the scan tool to close the Evaporative Emissions System. If possible change the tank pressure sensor units from inch_H2O to milimeter_Hg for better resolution. Now the vehicle can be stared to monitor the tank pressure sensor output value for approximately two minutes. If the tank pressure sensor value does change, pressurize the fuel tank side of the purge solenoid with the GE 41413-A / J 41413-A and the necessary adaptors. Now add smoke and allow pressure to stabilize for 2 minutes. If smoke is allowed to pass through the purge solenoid, replace the purge solenoid. If the tank pressure sensor value does not change, then install CH-48096 adaptor between the purge line from the canister and the purge solenoid. With the Evaporative Emissions System closed, pressurize the system through the CH-48096 adaptor and allow the system to completely stabilize, by observing the Press / Vac Gauge for a minimum of 5 minutes. Now add smoke to the system with GE 41413-A / J 41413-A after system stabilization. Now inspect the purge solenoid, engine side, fuel cap, canister vent solenoid filter and any line quick connects. When the leak is unable to be located, test under a vacuum condition. his type of leak may be detected by using the scan tool Purge/Seal function to create a vacuum in the Evaporative Emissions System and then observe the FTP sensor parameter for vacuum decay.
PIT5076D2017-08-15. Service bulletin. ELECTRICAL SYSTEM; STEERING; SERVICE BRAKES. 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.
PIC5428G2016-09-23. Service bulletin. TRACTION CONTROL SYSTEM; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; SERVICE BRAKES, ELECTRIC. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON HOW TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE THE ANTILOCK BRAKING SYSTEM, SERVICE TRACTION CONTROL SYSTEM, AND/OR SERVICE STABILITRAK LIGHTS ARE ON. THE ELECTRONIC BRAKE CONTROL MODULE MAY HAVE ONE OR MORE OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES C0035-C0050 WITH SPECIFICALLY SYMPTOM 18, 5A, OR 0F. TECHNICIAN WILL GAIN ACCESS TO THE CORRECT WHEEL BEAR PER THE DIAGNOSTIC TROUBLE CODE THAT IS SET. IF DEBRIS IS FOUND ON THE MAGNETIC ENCODER RING IT WILL NEEDED TO BE CLEANED.
PIC5692B2016-06-22. Service bulletin. SERVICE BRAKES. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIC57982016-06-22. Service bulletin. SERVICE BRAKES. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIC-57982013-04-19. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT. BUICK: WHILE DRIVING AT NORMAL SPEEDS (20-30), MANEUVERING BANKED TURNS, AN INTERMITTENT GRIND, RATCHET OR ABS PUMP MOTOR NOISES CAN BE HEARD, IN FRONT OF VEHICLE AND STABILITRAK WOULD FLASH AND REDUCTION IN THE THROTTLE. MODEL 2010-2013 LACROSSE. *PE
PIC 56922012-08-28. Service bulletin. EXTERIOR LIGHTING:BRAKE LIGHTS; SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES. GENERAL MOTORS: BRAKE PEDAL DOES NOT RAISE AFTER APPLY BRAKES REMAIN APPLIED OR BRAKE LIGHTS ON UNWANTED. THE CONDITION MAY OCCUR IN HIGH TEMPERATURE AND HUMIDITY CONDITIONS AND MAY NOT BE REPEATABLE. *JS UPDATED 08/28/2012 *JS UPDATED 10/15/14. *PE UPDATED 2/12/16. *PE
PIC-5512B2011-10-04. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK. SAAB/BUICK: DUE TO ALL FOUR WHEEL SENSOR, ABS BRAKE MIL COMES ON. *PE
PIC-54842011-08-01. Service bulletin. SERVICE BRAKES, ELECTRIC; ELECTRONIC STABILITY CONTROL (ESC). GM: 2010-2011 LACROSSE. THE SERVICE STABILITY AND SERVICE BRAKE ASSIST LIGHTS ARE ON. *RM
PI-04772011-06-27. Service bulletin. SERVICE BRAKES, ELECTRIC. GM: A SOFTWARE PROBLEM IS CAUSING A SERVICE STABILITRAK MESSAGE TO BE ON. 2011 LACROSSE. *RM
PIC-54282011-06-15. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING. GM: THE BRAKE, TRACTION, OR STABILITY LIGHTS ARE ON BECAUSE OF DEBRIS STUCK ON THE WHEEL SPEED SENSOR. UPDATED ON 06/15/2011. *KB UPDATED ON 06/20/2011. *RM UPDATED 6/27/11. *PE UPDATED 10/3/11. *PE UPDATED 05/08/2013 *JS UPDATED ON 7/9/2013. *KB UPDATED 7/28/14. *PE
PIC-5333A2011-05-21. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS. GM: THERE IS AN EBCM BRAKE BLEED PROCEDURE AVAILABLE. 2010-2011 LACROSSE. *RM
PB-102572011-05-11. Service bulletin. SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH; SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE. GM: CERTAIN 2011 BUICK LACROSSE VEHICLES A BRAKE PRESSURE RELIEF VALVE THAT MAY CAUSE THE BRAKES TO STAY LOCKED DURING AN ANTI-LOCK BRAKE SITUATION. *RM UPDATED 5/17/11. *PE UPDATED 6/22/11. *PE
SB-08-05-23-006E2011-05-11. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR; SERVICE BRAKES, AIR:DISC:ROTOR. GM: DUE TO NEW BRAKE ROTOR STYLE THERE MAY BE A NOISE OR PULSATION FELT IN THE BRAKES. THERE IS A PROPER DIAGNOSTIC PROCEDURE. *RM

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