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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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By component

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Bulletins, newest first
G-1720822017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 12312A - Customer Satisfaction (revised expiration date, population added). GM recently introduced into production a software update for the oil life monitor system. This new software will enhance the way the engine oil is monitored. In most cases, this update will recommend more frequent oil changes. Dealers will reprogram the engine control module.
G-1718372017-08-15. Service bulletin. ENGINE. 12313A - Special Coverage (revised part information). The chrome layer on the balance chain pins may wear, allowing the chain to stretch. This would cause an engine noise, and if left untreated, could cause the chain to break, leading to engine damage. In addition, the fuel pump plunger shaft seal may wear and allow fuel to leak into the crankcase, setting P0172 DTC, and illuminating the Malfunction Indicator Light. This can cause engine run-on and/or the engine to run rough. If this condition occurs within the stated terms, dealers will replace the engine balance chain and fuel pump.
G-1694702017-08-15. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL. 12313 - Special Coverage. The chrome layer on the balance chain pins may wear, allowing the chain to stretch. This would cause an engine noise, and if left untreated, could cause the chain to break, leading to engine damage. In addition, the fuel pump plunger shaft seal may wear and allow fuel to leak into the crankcase, setting P0172 DTC, and illuminating the Malfunction Indicator Light. This can cause engine run-on and/or the engine to run rough. If this condition occurs within the stated terms, dealers will replace the engine balance chain and fuel pump.
G-1581412017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 12312 - Customer Satisfaction Program. GM recently introduced into production a software update for the oil life monitor system that will enhance the way the engine oil is monitored and is providing it to customers who do not have this updated software.
PI0281F2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
17-NA-1262017-08-15. Service bulletin. WHEELS:LUGS/NUTS/BOLTS/STUDS. This informational bulletin provides information on Non-Design Intent Wheel Lock Nuts and Lug Nuts.
16-NA-3552017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. this informational bulletin provides Information on Using MyBuick, MyCadillac, MyChevrolet, and MyGMC Phone Applications to Control GM Accessory Remote Start Kits.
10-08-110-001F2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on proper use of floor mats.
03-06-03-004U2017-08-15. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
PIT5236G2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will check Global Warranty Management system for customer satisfaction program 15086 status. If the status of the customer satisfaction program 15086 was not completed follow the steps to get the Telematics Communication Interface Control Module replaced. If the status of customer satisfaction program 15086 is found completed contact General Motors Technical Assistance Center OnStar group for further assistance.
PIP53852017-08-15. Service bulletin. FUEL SYSTEM, GASOLINE. This Preliminary Information communication provides information to the technician with the steps to diagnose and repair vehicles that may have Service Engine Soon lamp or reduced engine power message came on and was cleared after cycling the key. Also technician may find a P228C set as current or history, and a prior history of High Pressure Fuel Pump replacement, and the customer has been using E85 fuel. If the Diagnostic Trouble Code is current follow Service Information instruction for the repair. If the code is set in history and there are no current drivability concerns take a large fuel sample and let it sit for a couple of hours looking for contamination. Verify the fuel pressure using a scan tool the actual and desired fuel pressures are very close to the same. If contamination is found in the tank then completely flush the fuel system and add e-10 fuel. Also remove the high pressure fuel pump inlet line from both ends. Using regulated air down to about 60 pounds per square inch or lower, blow through the inlet side of this pipe / hose. Inspect for restriction in the check valve built into this hose. If restricted then replace the pipe run a tank of premium fuel through the vehicle and reevaluate the concern.
PIC61812017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication advises the technician after the OnStar Canada upgrade the OnStar Vehicle Diagnostic Email report is inoperative. Please communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
PIP5232C2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the coil grounds ring terminal at the engine block for the bank with the concern and repair the wire.
PIP4936C2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. This Preliminary Information communication provides information to the technician that vehicles with engine Regular Production Option Codes LY7, LLT, LAU, LF1, or LFW that there is a new cylinder head design. When replacing cylinder heads on High Feature V6 engines if you are using a 2011 new style "saddle cap" cylinder head, spacer shims are not to be used. The saddle cap design cylinder heads will not work with the 2004-2006 and first design 2007 engines.
11-00-90-001A2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on the proper oils to use on GM vehicles including information regarding the differences of the Dexos oils.
12-06-01-0092017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on the release of 3 high feature v6 timing chain part kits. To help ease the ordering of large amounts of parts during service.
11-00-89-005C2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This warranty administration bulletin provides information on the Clarification of Use for Dealer Empowerment Labor Operations and Customer Enthusiasm
PI0324E2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This preliminary information bulletin provides information on doing a pressure line test prior to replacement and removal of the transmission for conditions relating to No Forward, No Reverse, No Crank, Engine Cranks But Will Not Start.
10-00-89-017X2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides a list off all the issues revolving around new vehicles for a one stop place to find growing concerns around them.
PI0124E2017-08-15. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This preliminary information bulletin provides information the proper ways of adjusting the center trim bezel to correct the condition of the CD/DVD will not eject from the instrument panel mounted player.
PI0774B2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This preliminary information bulletin provides a descritption of operation of the echo control and noise cancellation settings for concernc regarding noice drop outs during calls and muffled sound.
08-09-41-007I2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information regarding the Passenger Presence System (PPS) May Command Seat Belt Reminder Chime and Passenger Airbag Indicator On When Electronic Devices or Conductive Objects are Placed on Front Passenger Seat, DTCs 5045 or B0074 0F May Set in PPS Module
10-08-110-001D2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on the proper use of GM floor mats.
00-06-01-026G2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage.
07-00-89-037H2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information on courtesy transportation and roadside assistance programs.

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