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Service bulletins for the 2017 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.

1203 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
PIP4902Q2023-01-30. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
15-NA-0872022-11-03. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This technical bulletin advises the technician to rest the MIL and diagnose additional DTCs for why the code is setting and disabling the start/stop system.
22-NA-2052022-11-02. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on Module Harvesting.
PI0592G2022-10-13. Service bulletin. ELECTRICAL SYSTEM. This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
13-08-116-001H2022-10-11. Service bulletin. ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
21-NA-0682022-10-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.
PIT5569B2022-08-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.
PIP4670J2022-04-18. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.
21-NA-0362022-03-30. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT. This service bulletin advises the technician of a diagnostic test for a possible issue with a damaged OCV solenoid that may cause an oil leak and misfire, illuminating the MIL and setting DTCs P0300, P0302 and/or P0305.
PIC64502022-03-14. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates a process to correct the concern of Unable to contact OnStar after the 3G EOL on 2015-2022 model year vehicles in the United States.
PIC6048N2022-02-14. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; STEERING; AIR BAGS; LANE DEPARTURE; BACK OVER PREVENTION. 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).
N182188250 012022-02-07. Service bulletin. ENGINE; ELECTRICAL SYSTEM; POWER TRAIN. Special Coverage. Certain vehicles may have a condition which affects the electrical connection to one of the vehicle?s accelerator pedal position sensors. If this electrical connection is interrupted, the accelerator pedal will still function, but the vehicle will enter a reduced engine power mode in which the vehicle?s maximum acceleration and torque are reduced. Additionally, the Malfunction Indicator Light (Check Engine Light) will illuminate, the ?Engine Power is Reduced? message will display, and a diagnostic trouble code for Accelerator Pedal Position Sensor Correlation (P2138) will be set when this condition occurs. Dealers are to replace the accelerator pedal and position sensor assembly as necessary and repair the engine wire harness (Malibu LFV only). The repairs will be made at no charge to the customer.
21NA2782021-12-27. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides diagnostic strategy information to aid in diagnosing a Ticking, Tap or Rattle Noise from Engine with Possible Misfire, Malfunction Indicator Lamp (MIL) Illuminated.
20NA1322021-12-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
PIC6265F2021-09-13. Service bulletin. ELECTRICAL SYSTEM. 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".
PIT5698B2021-09-13. Service bulletin. ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS. This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
PIC5650J2021-09-13. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.
21NA1582021-08-09. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This service bulletin provides information on High Voltage Battery Module Replacement.
21NA1472021-08-09. Service bulletin. ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING. This service bulletin provides a repair procedure to correct a customer concern of Coolant and/or Oil Leak, Malfunction Indicator Lamp (MIL) Illuminated?.
21NA1392021-08-09. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.
19NA0442021-07-19. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
21NA1242021-07-06. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
20NA1322021-05-03. Service bulletin. ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
PIC4996C2021-04-19. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION. 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.
150603002H2021-04-16. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers Correct battery cold cranking amperage (CCA) ratings and type are critical for proper test results when using the EL-50313. Access to the battery specification label, which contains the OEM part number and CCA rating and type, may be difficult without component removal. Refer to the table below for the original equipment ratings and part numbers used to set up a proper battery test. There has been some confusion as to the correct ACDelco battery warranty replacement. Refer to the table below for the correct battery warranty replacement. The correct ACDelco battery warranty replacement in the catalog is designated by the "Original Equipment Replacement" note in the description field.

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