Buick LaCrosse Service Bulletins (2018)

992 manufacturer communications on file.

• December 11, 2018•Document ID: 10154981

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  18NA153

  Date Added:

  March 25, 2019

  Manufacturer:

  BUICK

  Summary

  This technical bulletin provides a procedure to replace the GEN I charging system with a GEN II charging system only if vehicles apply within the settings.

  Associated Products (95)

  2018 Buick LaCrosse2018 Buick Regal2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Cadillac XT52018 Cadillac XTS2018 Chevrolet Bolt EV2018 Chevrolet Camaro2018 Chevrolet Colorado2018 Chevrolet Cruze2018 Chevrolet Equinox2018 Chevrolet Impala2018 Chevrolet Malibu2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 Chevrolet Volt+ 75 more
  Associated Documents

  • DownloadMC-10154981-0001.pdf↗
• December 11, 2018•Document ID: 10154580

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5545B

  Date Added:

  March 18, 2019

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates a possible noise from the water pump causing a DTC and the diagnostics for the repair.

  Associated Products (31)

  2019 Buick LaCrosse2019 Cadillac ATS2019 Cadillac CT62019 Cadillac CTS2019 Cadillac XT52019 Chevrolet Camaro2019 Chevrolet Colorado2019 GMC Acadia2019 GMC Canyon2018 Buick LaCrosse2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Cadillac XT52018 Chevrolet Camaro2018 Chevrolet Colorado2018 GMC Acadia2018 GMC Canyon2017 Buick LaCrosse2017 Cadillac ATS+ 11 more
  Associated Documents

  • DownloadMC-10154580-0001.pdf↗
• December 7, 2018•Document ID: 10154974

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SERVICE BRAKES

  Mfr Comm. #:

  17NA021

  Date Added:

  March 25, 2019

  Manufacturer:

  BUICK

  Summary

  This technical bulletin provides a procedure for replacing the oil pump, power brake booster and power brake booster vacuum hose to eliminate a hard brake pedal and/or air type noise heard upon brake apply due to oil in the brake booster.

  Associated Products (19)

  2018 Buick LaCrosse2018 Buick Regal2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Cadillac XT52018 Chevrolet Camaro2018 GMC Acadia2017 Buick LaCrosse2017 Cadillac ATS2017 Cadillac CT62017 Cadillac CTS2017 Cadillac XT52017 Chevrolet Camaro2017 GMC Acadia2016 Cadillac ATS2016 Cadillac CT62016 Cadillac CTS2016 Chevrolet Camaro
  Associated Documents

  • DownloadMC-10154974-0001.pdf↗
• December 6, 2018•Document ID: 10154566

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5540B

  Date Added:

  March 18, 2019

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.

  Associated Products (815)

  2018 Buick Cascada2018 Buick Enclave2018 Buick Encore2018 Buick Envision2018 Buick LaCrosse2018 Buick Regal2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Cadillac XT52018 Cadillac XTS2018 Chevrolet Aveo2018 Chevrolet Bolt EV2018 Chevrolet Camaro2018 Chevrolet Colorado2018 Chevrolet Corvette2018 Chevrolet Cruze2018 Chevrolet Equinox+ 795 more
  Associated Documents

  • DownloadMC-10154566-0001.pdf↗
• December 5, 2018•Document ID: 10155012

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; SEATS

  Mfr Comm. #:

  060850009J

  Date Added:

  March 25, 2019

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information for information on passenger presence sensing system (PPS or PSS) concerns with custom upholstery, accessory seat heaters or other comfort enhancing devices.

  Associated Products (502)

  2019 Buick Cascada2019 Buick Enclave2019 Buick Encore2019 Buick Envision2019 Buick LaCrosse2019 Buick Regal2019 Cadillac ATS2019 Cadillac CT62019 Cadillac CTS2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Cadillac XT42019 Cadillac XT52019 Cadillac XTS2019 Chevrolet Blazer2019 Chevrolet Bolt EV2019 Chevrolet Camaro2019 Chevrolet Colorado2019 Chevrolet Corvette2019 Chevrolet Cruze+ 482 more
  Associated Documents

  • DownloadMC-10155012-0001.pdf↗
• December 5, 2018•Document ID: 10155011

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  060847001N

  Date Added:

  March 25, 2019

  Manufacturer:

  PONTIAC

  Summary

  This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module.

  Associated Products (664)

  2019 Buick Cascada2019 Buick Enclave2019 Buick Encore2019 Buick Envision2019 Buick LaCrosse2019 Buick Regal2019 Cadillac ATS2019 Cadillac CT62019 Cadillac CTS2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Cadillac XT42019 Cadillac XT52019 Cadillac XTS2019 Chevrolet Blazer2019 Chevrolet Bolt EV2019 Chevrolet Camaro2019 Chevrolet Colorado2019 Chevrolet Corvette2019 Chevrolet Cruze+ 644 more
  Associated Documents

  • DownloadMC-10155011-0001.pdf↗
• December 5, 2018•Document ID: 10155008

  Service Bulletin/Repair Instructions
  TIRES

  Mfr Comm. #:

  000310003X

  Date Added:

  March 25, 2019

  Manufacturer:

  GMC

  Summary

  This warranty administration bulletin provides information on The tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty.

  Associated Products (515)

  2019 Buick Cascada2019 Buick Enclave2019 Buick Encore2019 Buick Envision2019 Buick LaCrosse2019 Buick Regal2019 Cadillac ATS2019 Cadillac CT62019 Cadillac CTS2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Cadillac XT42019 Cadillac XT52019 Cadillac XTS2019 Chevrolet Blazer2019 Chevrolet Bolt EV2019 Chevrolet Camaro2019 Chevrolet Colorado2019 Chevrolet Corvette2019 Chevrolet Cruze+ 495 more
  Associated Documents

  • DownloadMC-10155008-0001.pdf↗
• December 4, 2018•Document ID: 10207988

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); EXTERIOR LIGHTING; ELECTRICAL SYSTEM; AIR BAGS

  Mfr Comm. #:

  1823901

  Date Added:

  February 14, 2022

  Manufacturer:

  CHEVROLET

  Summary

  Emissions Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles, equipped with 4-cylinder engines (RPO LHN, LEX, L3A, LYX, LKN, LE2, LCV or LTG). On some vehicles, an electrical connection in the circuit board may fail in the engine control module. If this occurs, a malfunction indicator lamp (MIL), such as the Check Engine Light may illuminate. Replace the Engine Control Module (ECM).

  Associated Products (13)

  2018 Buick LaCrosse2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Chevrolet Camaro2018 Chevrolet Colorado2018 Chevrolet Cruze2018 Chevrolet Equinox2018 Chevrolet Malibu2018 Chevrolet Volt2018 GMC Acadia2018 GMC Canyon2018 GMC Terrain
  Associated Documents

  • DownloadMC-10207988-0001.pdf↗
• December 4, 2018•Document ID: 10207697

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

  Mfr Comm. #:

  18239 01

  Date Added:

  February 7, 2022

  Manufacturer:

  CADILLAC

  Summary

  Emissions Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles, equipped with 4-cylinder engines (RPO LHN, LEX, L3A, LYX, LKN, LE2, LCV or LTG). On some vehicles, an electrical connection in the circuit board may fail in the engine control module. If this occurs, a malfunction indicator lamp (MIL), such as the Check Engine Light may illuminate. Replace the Engine Control Module (ECM).

  Associated Products (13)

  2018 Buick LaCrosse2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Chevrolet Camaro2018 Chevrolet Colorado2018 Chevrolet Cruze2018 Chevrolet Equinox2018 Chevrolet Malibu2018 Chevrolet Volt2018 GMC Acadia2018 GMC Canyon2018 GMC Terrain
  Associated Documents

  • DownloadMC-10207697-0001.pdf↗
• December 4, 2018•Document ID: 10154557

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  PIC6344

  Date Added:

  March 18, 2019

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates that a vehicle may come to the dealer with a complaint of a no start or a stall condition. The dealer technician is directed to inspect for the ground cable to G103 either not properly installed or loose. The technician is directed to install the cable to G103 located on the left frame rail or to properly torque the cable if it is already installed.

  Associated Products (2)

  2019 Buick LaCrosse2018 Buick LaCrosse
  Associated Documents

  • DownloadMC-10154557-0001.pdf↗
• December 3, 2018•Document ID: 10154552

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

  Mfr Comm. #:

  PIP4925B

  Date Added:

  March 18, 2019

  Manufacturer:

  PONTIAC

  Summary

  This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and ultrasonic leak detector tools.

  Associated Products (816)

  2018 Buick Cascada2018 Buick Enclave2018 Buick Encore2018 Buick Envision2018 Buick LaCrosse2018 Buick Regal2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Cadillac XT52018 Cadillac XTS2018 Chevrolet Aveo2018 Chevrolet Bolt EV2018 Chevrolet Camaro2018 Chevrolet Colorado2018 Chevrolet Corvette2018 Chevrolet Cruze2018 Chevrolet Equinox+ 796 more
  Associated Documents

  • DownloadMC-10154552-0001.pdf↗
• November 26, 2018•Document ID: 10151876

  Service Bulletin/Repair Instructions
  STRUCTURE; EQUIPMENT

  Mfr Comm. #:

  PIC5822F

  Date Added:

  December 17, 2018

  Manufacturer:

  BUICK

  Summary

  This Preliminary Information communication provides the technician with the steps to diagnose and repair the concern of mildew odor or water on front floor on either side of the vehicle. Technician will gain access to the front wheelhouse of the affected side.  The front wheel house flange may have a void in the sealer causing water to leak through and accumulate on the floor or wet carpet will be found. A thumb grade sealer will need to be placed in the void to prevent the water leak into the cabin.

  Associated Products (39)

  2019 Buick LaCrosse2019 Buick Regal2019 Cadillac XTS2019 Chevrolet Impala2019 Chevrolet Malibu2018 Buick LaCrosse2018 Buick Regal2018 Cadillac XTS2018 Chevrolet Impala2018 Chevrolet Malibu2017 Buick LaCrosse2017 Buick Regal2017 Cadillac XTS2017 Chevrolet Impala2017 Chevrolet Malibu2016 Buick LaCrosse2016 Buick Regal2016 Cadillac XTS2016 Chevrolet Impala2016 Chevrolet Malibu+ 19 more
  Associated Documents

  • DownloadMC-10151876-0001.pdf↗
• November 26, 2018•Document ID: 10151873

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  PIC4996A

  Date Added:

  December 17, 2018

  Manufacturer:

  CHEVROLET

  Summary

  This PI offers diagnostic tips to a technician when diagnosing a possible fuel level sensor concern. The tech is advised to ohm test the sensor at the terminals located on top of the fuel module while performing a sweep test. If the test fails the technician is instructed to replace the sensor and then perform the sweep test again. If the test passes the technician is instructed to reinstall the fuel module in the tank and if the test fails with the new sensor the technician is advised to replace the fuel module.

  Associated Products (33)

  2018 Buick LaCrosse2018 Chevrolet Impala2017 Buick LaCrosse2017 Chevrolet Impala2016 Buick LaCrosse2016 Chevrolet Impala2015 Buick LaCrosse2015 Chevrolet Impala2014 Buick LaCrosse2014 Chevrolet Impala2013 Buick LaCrosse2013 Chevrolet Impala2012 Buick LaCrosse2012 Chevrolet Impala2011 Buick LaCrosse2011 Chevrolet Impala2010 Buick LaCrosse2010 Chevrolet Impala2009 Buick LaCrosse2009 Chevrolet Impala+ 13 more
  Associated Documents

  • DownloadMC-10151873-0001.pdf↗
• November 21, 2018•Document ID: 10151869

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

  Mfr Comm. #:

  PIT5353C

  Date Added:

  December 17, 2018

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles. A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.

  Associated Products (726)

  2018 Buick Cascada2018 Buick Enclave2018 Buick Encore2018 Buick Envision2018 Buick LaCrosse2018 Buick Regal2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Cadillac XT52018 Cadillac XTS2018 Chevrolet Aveo2018 Chevrolet Bolt EV2018 Chevrolet Camaro2018 Chevrolet Colorado2018 Chevrolet Corvette2018 Chevrolet Cruze2018 Chevrolet Equinox+ 706 more
  Associated Documents

  • DownloadMC-10151869-0001.pdf↗
• November 20, 2018•Document ID: 10151865

  Service Bulletin/Repair Instructions
  ENGINE; POWER TRAIN

  Mfr Comm. #:

  PIC6341

  Date Added:

  December 17, 2018

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates that a customer may bring a vehicle in with a complaint that the engine rpm increased and/or the vehicle downshifted for no reason. The dealer is instructed to test drive the vehicle and check for codes. If no cause of the concern is found and it cannot be duplicated the dealer technician is instructed to review operation of the tap shift operation in the owner's manual. The technician is then instructed to drive the vehicle with the customer and downshift the vehicle using temporary tap shift mode to demonstrate this feature to the customer and see if this is what the customer is experiencing. If the customer states that this is what they are experiencing the dealer is advised to educate the customer on the tap shift operation.

  Associated Products (3)

  2019 Buick LaCrosse2018 Buick LaCrosse2017 Buick LaCrosse
  Associated Documents

  • DownloadMC-10151865-0001.pdf↗
• November 19, 2018•Document ID: 10151861

  Service Bulletin/Repair Instructions
  SEATS; LANE DEPARTURE

  Mfr Comm. #:

  PIC6048J

  Date Added:

  December 17, 2018

  Manufacturer:

  BUICK

  Summary

  This Preliminary Information communicates to the technician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering.  This means that the driver should also feel some feedback from the steering wheel.  No Chimes or haptic in the seat. Lane Keep Assist icon is flashing amber; Forward Camera Module is actively commanding torque to Electronic Power Steering.  This will also be accompanied with Lane Departure Warning chimes and haptic in the seat feedback based on the setting chosen in the vehicle settings.  This will take place when the vehicle has crossed lane marking by (40 cm) or (15.75 in).

  Associated Products (37)

  2019 Buick Envision2019 Buick LaCrosse2019 Cadillac ATS2019 Cadillac CT62019 Cadillac CTS2019 Cadillac XT42019 Cadillac XT52019 Cadillac XTS2019 Chevrolet Equinox2019 GMC Acadia2019 GMC Terrain2018 Buick Envision2018 Buick LaCrosse2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Cadillac XT52018 Cadillac XTS2018 Chevrolet Equinox2018 GMC Acadia+ 17 more
  Associated Documents

  • DownloadMC-10151861-0001.pdf↗
• November 15, 2018•Document ID: 10151851

  Service Bulletin/Repair Instructions
  LANE DEPARTURE; VEHICLE SPEED CONTROL:CRUISE CONTROL

  Mfr Comm. #:

  PIC6265D

  Date Added:

  December 17, 2018

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that a vehicle may exhibit a Adaptive Cruise Control Unavailable and/or Lane Keep Assist Unavailable message. The technician may attempt to program the Active Safety Control Module (ASCM) and encounter a code E4399. The technician is advised if he encounters this concern to zero the MIC counter by placing the vehicle into and back out of "Transport Mode".

  Associated Products (10)

  2019 Buick LaCrosse2019 Cadillac CT62019 Chevrolet Malibu2018 Buick LaCrosse2018 Cadillac CT62018 Chevrolet Malibu2017 Buick LaCrosse2017 Cadillac CT62017 Chevrolet Malibu2016 Cadillac CT6
  Associated Documents

  • DownloadMC-10151851-0001.pdf↗
• November 13, 2018•Document ID: 10151836

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIP5568C

  Date Added:

  December 17, 2018

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates there is an investigation into cause and correction for this group of DTC's setting together. (P0011, P0014, P0021, P0024). Revised to include the possibility of setting in pairs and some drivability concerns.

  Associated Products (24)

  2019 Buick Enclave2019 Buick LaCrosse2019 Buick Regal2019 Cadillac ATS2019 Cadillac CT62019 Cadillac CTS2019 Cadillac XT52019 Chevrolet Traverse2018 Buick Enclave2018 Buick LaCrosse2018 Buick Regal2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Cadillac XT52018 Chevrolet Traverse2017 Buick LaCrosse2017 Cadillac ATS2017 Cadillac CT62017 Cadillac CTS+ 4 more
  Associated Documents

  • DownloadMC-10151836-0001.pdf↗
• November 5, 2018•Document ID: 10155101

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  18NA099

  Date Added:

  March 25, 2019

  Manufacturer:

  BUICK

  Summary

  This bulletin provides information for use on a Product Assistance Claim (PAC), which is formally known as a Product Allegation Resolution (PAR) claim.

  Associated Products (361)

  2019 Buick Cascada2019 Buick Enclave2019 Buick Encore2019 Buick Envision2019 Buick LaCrosse2019 Buick Regal2019 Cadillac ATS2019 Cadillac CT62019 Cadillac CTS2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Cadillac XT42019 Cadillac XT52019 Cadillac XTS2019 Chevrolet Blazer2019 Chevrolet Bolt EV2019 Chevrolet Camaro2019 Chevrolet Colorado2019 Chevrolet Corvette2019 Chevrolet Cruze+ 341 more
  Associated Documents

  • DownloadMC-10155101-0001.pdf↗
• November 2, 2018•Document ID: 10155102

  Service Bulletin/Repair Instructions
  SUSPENSION:FRONT:CONTROL ARM:LOWER ARM; SUSPENSION:FRONT:CONTROL ARM

  Mfr Comm. #:

  18NA163

  Date Added:

  March 25, 2019

  Manufacturer:

  BUICK

  Summary

  This technical bulletin provides a procedure to replace both front lower control arms to correct the condition of Front End Rattle Noise when Braking Moderate or Hard on Rough Surfaces due to metal on metal contact within the control arms.

  Associated Products (3)

  2018 Buick LaCrosse2018 Buick Regal2017 Buick LaCrosse
  Associated Documents

  • DownloadMC-10155102-0001.pdf↗