2011 Buick Lacrosse Technical Service Bulletins

1,642 technical service bulletins (TSBs) are on record for the 2011 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.

• 10044235Apr 1, 2012Steering. Gm: guidelines for nj1 power steering powerpack (module) replacement and parts restriction instructions.
• 10043943Mar 1, 2012Latches, locks and linkages. Gm: door lock actuators inoperative - passive entry and/or button press.
• 10043936Mar 1, 2012Steering. Buick/chevrolet: intermittent service power steering message with dtc u0131.
• 10041504Feb 1, 2012Electrical system, Other or unknown. Buick/cadillac/chevrolet/gmc: valve, control solenoid will be placed on restriction. *pe updated 4/18/12.
• 10038345Feb 1, 2012Engine cooling. Buick/cadillac/chevrolet/gmc/pontiac/saturn: there may be an intermittent engine hesitation or flutter. The camshaft sensor terminals likely have poor connections. *rm updated 8/1/11. *pe updated 4/16/12.
• 10038294Jan 1, 2012Seat belts. Gm: there are seat belt problems: difficulty latching and unlatching buckle. Buckle release button is sticking. Seat belt warning light illuminated. Likely caused by sticky beverages that are spilled into the buckle assembly. *rm updated 4/3/12.
• 10043320Dec 1, 2011Transmission and drivetrain, Engine cooling. 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.
• 10043306Dec 1, 2011Engine cooling. Gmc/buick/chevrolet: noise can be heard coming from rear of engine when hood is open or while vehicle is idling.
• 10035986Dec 1, 2011Body and structure, Latches, locks and linkages. Buick/cadillac/chevrolet/gmc/saturn: intermittent unwanted liftgate or trunk opening, liftgate or trunk inoperative. Technician may determine that they are unable to duplicate these intermittent conditions. *pe updated 3/12/12.
• 10042384Oct 1, 2011Body and structure, Latches, locks and linkages. Buick: certain vehicles experience inoperative door handle, inside/outside, and inoperative door lock, unlocking or locking.
• 10037184Oct 1, 2011Seat belts. Gm: service bulletin explaining when the safety belts are supposed to lock. *rm updated 12/6/11.
• 10040502Sep 1, 2011Engine cooling. Gm: see document search button for owner letter. 2011 lacrosse, equinox, terrain. The malfunction light will come on along with, rough idle, poor driveability, and/or possible stalling at low throttle opening. This is due to a problem with the camshaft. *rm updated 10/4/11. *pe updated 12/5/11.
• 10041484Aug 1, 2011Brakes. Saab/buick: due to all four wheel sensor, abs brake mil comes on.
• 10039590Aug 1, 2011Steering. Gm: 2011 buick regal/lacrosse. Power steering fluid is leaking from the vehicle. No root cause determined. *rm updated 10/3/11.
• 10040501Jun 1, 2011Electrical system. Gm service campaign: see document search button for owner letter. The battery may not be up to specifications and could prevent the vehicle from starting. 2011 buick lacrosse.
• 10039510Jun 1, 2011Electronic stability control, Brakes. Gm: 2010-2011 lacrosse. The service stability and service brake assist lights are on.
• 10039484Jun 1, 2011Electrical system. Gm: 2010-2011 buick lacrosse. When turning off the ignition, the vehicle stays running. A ground may be loose.
• 10038745May 1, 2011Brakes. Gm: a software problem is causing a service stabilitrak message to be on. 2011 lacrosse.
• 10038705May 1, 2011Steering. Gm: the steering wheel adjustment is binding or sticking. This is caused by the steering wheel lever adjustment nut tightening.
• 10038684May 1, 2011Electrical system, Engine cooling. Gm: check engine light is on with a stored trouble code.
• 10039028Apr 1, 2011Engine cooling. Gm: 2010-2011 buick lacrosse. Service engine soon light is on with multiple trouble codes stored.
• 10038706Apr 1, 2011Transmission and drivetrain. Gm: malfunction light is on with four possible trouble codes stored.
• 10044124Mar 1, 2011Electrical system. General motors: due to the parasitic drain/discharge on 2011 vehicles and trucks, a no crank/no start and dead battery would occur. Cadillac sts and chevrolet volt not included.
• 10038652Mar 1, 2011Steering. Gm: a service stability/traction light is on. There may also be various stored trouble codes. Updated on 06/24/2011. *kb updated on 06/27/2011.
• 10038510Mar 1, 2011Engine cooling. Gm: there may be noise coming from the cylinder head, because of low oil pressure which is caused by debris.
• 10037212Mar 1, 2011Brakes. 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.
• 10038511Feb 1, 2011Engine cooling. Gm: there may be a short rattle noise from the front of the engine when it is started. It could be a problem with cam phasers or the engine belt.
• 10038465Feb 1, 2011Transmission and drivetrain. Gm: the malfunction indicator light is on and the transmission may slip due to debris entering the channel plate.
• 10038295Feb 1, 2011Other or unknown. Gm: information on fixing multiple situations right the first time.
• 10041429Jan 1, 2011Fuel system. Buick/chevrolet/gmc: indicator lamp is malfunctioning intermittently.
• 10037943Jan 1, 2011Engine cooling. Gm: there may be a service engine soon light on, the engine may misfire, or the engine may run rough. *rm updated 09/19/2013
• 10037932Jan 1, 2011Tires. Gm: tire pressure monitor malfunction light is on.
• 10035484Jan 1, 2011Latches, locks and linkages. Cadillac/buick: engineering information-door lock (latch) replacement. Engineering attempting to determine the root cause of the door lock replacement. *pe updated on 06/08/2011.
• 10035984Dec 1, 2010Transmission and drivetrain. Buick: correct transfer case (ptu) vent hose routing. Transfer case vent hose may have been routed incorrectly during assembly. If the transfer case vent hose is routed incorrectly, and depending on where it is misrouted, a customer may comment on a passenger compartment odor or a slight fluid leak under the vehicle. *pe updated 5/31/11.
• 10037355Nov 1, 2010Brakes. Gm: there is an ebcm brake bleed procedure available. 2010-2011 lacrosse.
• 10037350Nov 1, 2010Body and structure. Gm: on some 2010-2011 buick lacrosse vehicles the front carpeting is wet on the passenger side from a plugged hvac evaporator tube.
• 10037218Oct 1, 2010Electrical system, Engine cooling. Gm: the engine may stall when coming to a stop or turning in hot weather. The engine will restart. There is a service procedure for reprogramming the ecm.
• 10037164Oct 1, 2010Brakes. Gm: due to new brake rotor style there may be a noise or pulsation felt in the brakes. There is a proper diagnostic procedure.
• 10037134Oct 1, 2010Steering. Gm: a service power steering message may be present with the driver complaining of intermittent steering difficulty.
• 10036005Sep 1, 2010Electrical system, Exterior lighting. Buick: during start up an intermittent afl lamps need service message displayed or afl lamps need service message displayed continuously and one headlamp bulb will not illuminate (inspect and replace headlamp bulb and/or ballast, reprogram headlamp control module using tis2web and sps).
• 10036104Aug 1, 2010Electrical system, Steering. Buick/cadillac/chevrolet/gmc: service stability message with code u07010. After further investigation you may notice trouble code 70710 set by the steering angle sensor.
• 10033984Jul 1, 2010Transmission and drivetrain, Engine cooling. Buick/chevrolet/gmc: service update for inventory and customer vehicles; increased rpm during certain shifts-expires with base warranty. Provides a service procedure to reprogram the transmission control module on certain vehicles equipped with 6 speed transmission (6t70/6t75).

← All problems reported for the 2011 Buick Lacrosse