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Service bulletins for the 2016 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.

1240 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
PIC61072017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about being unable to receive OnStar ?Over The Air? updates. Technician will need to press the OnStar button and verify they have an active account and that the call connects with data and location.
PIT5461A2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have a random infotainment system resets while driving, screen temporarily goes blank and then returns after approximately 5 seconds, radio volume control inoperative, Heater-Vent-Air Conditioning controls function but will not show changes on the display, seek buttons on the front controls will not function, when using CarPlay the map is intermittently bright at night, front pedestrian icon "Check Box" disappears after changing selection, over-temp Pop-up displayed randomly, displays a quick blue screen when shifting to reverse, infotainment system resets when a device with a large amount of songs is connected, XM not showing Station List, and or Radio shows XM Station ID 0 intermittently. Technician should USB program the Human Machine Interface. After USB programming has been completed reprogram the Human Machine Interface module this time using the Service Programming System with the latest calibrations available on TIS2WEB.
PIC5953B2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
PIC5520R2017-08-15. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication advises the technician that the eAssist Drive Motor Generator Battery Powerpack has been place on parts restriction by General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
PIP5095C2017-08-15. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon and may also have an oil or coolant leak. Technician may find coolant or oil in a spark plug tube. If the Spark Plug Tube is leaking and it is determined that the oil or coolant is not coming from a leak above the spark plug then replace the cylinder Head, spark plug and coil.
PIC6216B2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles voice recognition inoperative for calling Bluetooth phone contacts. Technician will need to Clear All Private Data and re-pair any phones that were deleted.
PIT5389B2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to contact General Motors Technical Assistance Center with the scan tool data from the OnStar system.
PIC5932A2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about customers that may complain of various concerns when using Bluetooth components. Technician should use the Preliminary Information to gather information from the customer on their Bluetooth device and the concern they are having before calling General Motors Technical Assistance Center.
PIE03652017-08-15. Service bulletin. ELECTRICAL SYSTEM. This engineering information bulletin is requesting information from the dealers on a customer concern that one of the USB ports is not charging, allowing data to transfer.
PI0592D2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on service programming system (SPS) errors.
09-06-04-026M2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. This informational bulletin provides information on identifying non-GM (aftermarket) engine calibrations for gasoline engines using Tech 2 or GDS 2.
17-NA-1422017-08-15. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information on Wireless Charging Module Diagnosis.
17-NA-1032017-08-15. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM. This informational bulletin explains how the airbag electrical connector may not be installed completely and may need to be re connected to correct the codes the were set.
15-06-03-002F2017-08-15. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. This informational bulletin provides information on approved warranty part numbers for original equipment batteries
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.
PIP4992C2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication provides information to the technician some vehicles may have a drive motor generator, battery control module and cooling fan may become inoperative due to low system voltage. There may have been a charging system message, battery warning lamp or service hybrid system message displayed and may have Diagnostic Trouble Code P0C32 and or P0A7E. If the voltage level drops to a predetermined level approximately 9 direct current volts use Global Diagnostic System 2 to command the battery pack cooling fan motor on to make sure it operates. If the fan does not operate it will need to be replaced. Technician may need to run the vehicle through several drive cycles to ensure that there is not another root cause for the low voltage condition. Technician will need to reprogram the generator control module.
PIC61872017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication advises the technician that some vehicles intermittently the favorites saved from a USB drive or SD card are grayed out and not selectable. Please communicate to the customer that we apologize for this inconvenience and that General Motors is currently evaluating this concern.
PIC5520T2017-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication advises the technician the drive motor generator battery module is being placed on restriction through the General Motors Technical Assistance Center. Technician will need to call General Motors Technical Assistance Center for further assistance.
11-08-49-001O2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This technical bulletin provides repair procedure information to correct a customer concern of Transport Mode On message displayed in Driver Information Center (DIC) and/or battery light is flashing.
15-00-89-0032017-08-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on dealer reimbursement procedures for Customer Assistance Center (CAC) Tier 1 and Tier 2 empowerment tools: diagnostic fee, short term rental, and up-front towing (U.S. only).
PIT5389C2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
PIC4935F2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to help the dealership technicians perform a parasitic drain test for the OnStar module. When performing battery parasitic drain test, there may be some confusion as to what the normal power consumption reading should be from the OnStar system.
PIC5626B2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication provides information to the technician about vehicles that have the 12V Battery is discharged with a Service Charging System Message, a Malfunction Indicator Lamp and Red Battery Light on.
PIP4723B2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

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