2012 Buick Lacrosse Technical Service Bulletins

1,830 technical service bulletins (TSBs) are on record for the 2012 Buick Lacrosse. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10125985Jun 27, 2014Electrical system. 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…
• 10126308Jun 26, 2014Suspension. This informational bulletin was created to aid the technician in diagnosing the difference between a shock or strut that has a fluid residule from a possible external source from a leaking shaft seal.
• 10125972Jun 26, 2014Transmission and drivetrain, Engine. 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.
• 10126301Jun 24, 2014Equipment. This preliminary bulletin explains to the technician to use the vin when reprogramming the radio using the techline/service programming systems.
• 10126291Jun 18, 2014Visibility (wipers, defrost, mirrors). This preliminary bulletin provides a procedure on how to reset the power folding mirriors after they been folded manually, to fix the customers concern of the mirriors shaking or fluttering at normal driving speeds.
• 10126285Jun 16, 2014Equipment. This preliminary bulletin provides procedures on how to reset or refresh the XM radio receiver is the customers states that they only get a few channels.
• 10125956Jun 16, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that may not receiving all channels on the XM band. Technician will need to use a scan tool and verify current Digital Radio Receiver Status under Data Display. Technician will need to look at the second line labeled Digital Radio Receiver Status will display a number of 00 - 04. Technician will repair per the status…
• 10125953Jun 16, 2014Equipment. This Preliminary Information communication provides information to the technician on the programming and activation of the OnStar system. For many 2008 and prior model year GM vehicles, the programming is performed using the Tech 2 and the activation is initiated by a Service Programming System.
• 10126280Jun 13, 2014Equipment. This preliminary bulletin provides a information to the dealer for the requirements need for equipment.
• 10126278Jun 12, 2014Equipment. This informational bulletin provides the dealer with information on what to do when requesting a new key code for the customer.
• 10125944Jun 11, 2014Electrical system, Engine cooling. This Preliminary Information communication provides information to the technician about vehicles with a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P011, P0014, P0021, and or P0024. During inspection if no other drivability concerns found inspect the engine EUN sticker for an (A) before the sequence number. If there is an "A" before the sequence number then…
• 10126275Jun 5, 2014Equipment. This information bulletin provides dealers with more information on how to better prep a vehicle for pre-delivery.
• 10125933Jun 3, 2014Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicle that have a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0601, P0603, P0604, P062F or P1621 stored in the Transmission Control Module. Technician will need to ensure that the Diagnostic Trouble Codes are set in the Transmission Control Module. If the Diagnostic Trouble Codes are only set…
• 10252882Jun 1, 2014Visibility (wipers, defrost, mirrors). Engineering Information.
• 10137937May 30, 2014Tires. This informational bulletin provides explanation on using the tire sealent in the GM kit as a temporary fix only untill the tire can be properly repaired under the new tire warranty.
• 10137935May 29, 2014Engine, Transmission and drivetrain. This informational bulletin provides a process to the service agents that are not required to contact PQC, to determine when to replace a assembly as opposed to repairing and if an engine or transmission is being returned, that it has all the information in relation to that part being returned.
• 10137934May 29, 2014Engine cooling, Transmission and drivetrain. This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified.
• 10137932May 28, 2014Electrical system, Equipment. This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not.
• 10112082May 23, 2014Electrical system, Equipment. This Preliminary Information communication provides information to the technician about vehicles that loose connection between the vehicle and a Bluetooth phone. Technician will need to use a scan tool to check the "Firmware Over-the-Air" value. If the "Firmware Over-the-Air" value is up to date and customer's concern is still present contact General Motors Technical Assistance Center for further assistance.
• 10137928May 22, 2014Equipment, Tires. This informational bulletin explains a normal condition of new tires may shake and vibrate for the first few miles.
• 10137927May 22, 2014Equipment, Tires. This informational bulletin provides the technician with information on tire radial force variations and how to balance a tire using the balancer.
• 10137923May 20, 2014Fuel system, Engine cooling, Equipment. This technical bulletin provides a procedure to test for oil consumption and install new pistons and rings if no signs of consumption or oil leaks have been validated.
• 10137919May 19, 2014Equipment. This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary.
• 10137918May 19, 2014Electrical system, Equipment. This informational bulletin explains if the fuse is open when the customer plugs in the trailer, that it may be the cause if diagnostics finds no problems to that point.
• 10112074May 19, 2014Brakes. 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…
• 10137914May 16, 2014Equipment. This informational bulletin provides tips on how to care for the interior of the vehicle using products.
• 10112071May 15, 2014Body and structure, Suspension. This Preliminary Information communication provides information to the technician about vehicles that jerks or bumps on a de-acceleration coast down at about 40 to 30 miles per hour. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
• 10137905May 13, 2014Electrical system. This preliminary bulletin provides information to the technician, to check for loose grounds and the correct labor op to use
• 10112068May 13, 2014Body and structure, Suspension. This Preliminary Information communication provides information to the technician about vehicles that jerks or bumps on a de-acceleration coast down at about 40 to 30 miles per hour. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
• 10137903May 12, 2014Equipment. This preliminary bulletin states to add the DTC symptom byte to the documentation to help aid engineering pinpoint concerns when trying to locate a root cause.
• 10112066May 12, 2014Equipment, Electrical system. This Preliminary Information communication provides information to the technician about vehicles with a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P011, P0014, P0021, and or P0024. During inspection if no other drivability concerns found inspect the engine EUN sticker for an (A) before the sequence number. If there is an "A" before the sequence number then…
• 10137901May 9, 2014Fuel system. This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.
• 10137890May 2, 2014Equipment, Transmission and drivetrain, Engine cooling. This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified.
• 10112049May 2, 2014Engine cooling, Electrical system. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have check engine light and a misfire. Technician will find a P0300 set. If the misfiring cylinder is creating NO or very low power, technician will need to follow these diagnostics steps. 1) Swap the ignition coil and spark plug with another cylinder. 2) Inspect the plug when out for…
• 10246983May 1, 2014Equipment. Checking Smartphone Bluetooth Software Update Status
• 10246913May 1, 2014Back-over prevention (rear camera), Wheels. EBCM Wheel Speed Sensor Diagnostic Aid for ABS Message
• 10246624May 1, 2014Equipment. Car and Truck Fix it Right the First Time Issues
• 10245790May 1, 2014Engine cooling. Excessive Oil Consumption
• 10070960May 1, 2014Equipment. Summary to be provided on a future date.
• 10070044May 1, 2014Equipment. Summary to be provided on a future date.
• 10070043May 1, 2014Equipment. Summary to be provided on a future date.
• 10056237May 1, 2014Electrical system. General motors: due to loose ground terminal connections, in some vehicles and trucks experience, accessories malfunctions, dic messages, ipc warning indicators, ses light on.
• 10055843May 1, 2014Electrical system. Chevrolet/buick: some vehicles may experience malfunction indicator lamp (mil) on, or service charging system message displayed, or charging system light on. Model 2012-2014 lacrosse, regal, malibu, impala.
• 10038468May 1, 2014Brakes. 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.
• 10135233Apr 30, 2014Electrical system. This preliminary bulletin provides a procedure to clear all the codes from the BECM and not replace it until confirmed, and the customers concern of the Service Charging System message has been cleared.
• 10135230Apr 29, 2014Electrical system, Latches, locks and linkages. This preliminary bulletin provides a procedure to install a new relay to control the trunk opening up when the button has been accidently pressed.
• 10135227Apr 28, 2014Equipment. This informational bulletin provides information to the dealers on properly maintaining vehicles in inventory.
• 10111829Apr 25, 2014Engine. This Preliminary Information communication provides information to the technician about vehicles that may have black smoke on a cold start. A dual-pulse injection strategy is utilized during engine cold start to reduce the time required to bring the catalytic converter up to operating temperature. This split injection strategy lasts for about 60 seconds on cold start. This process may cause the customer to see…
• 10135222Apr 22, 2014Equipment. This informational bulletin explains how to cut a new key or how to get a precut key from GM.
• 10135219Apr 22, 2014Exterior lighting. This informational bulletin explains condensation in exterior lights and replacment guidelines for warranty replacement.

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