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Service bulletins for the 2012 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.

1830 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
PIC5520G2023-12-11. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY THERMAL:MANAGEMENT:SOFTWARE; ELECTRICAL SYSTEM. eAssist Generator Control And Battery Module Exchange Process And Order Instructions.
PIC5520F2023-12-11. Service bulletin. ELECTRICAL SYSTEM. eAssist Generator Control And Battery Module Exchange Process And Order Instructions.
PIC5520E2023-12-11. Service bulletin. ELECTRICAL SYSTEM. eAssist Generator Control And Battery Module Exchange Process And Order Instructions.
PIC5398C2023-12-11. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Mist From Instrument Panel Vents, Moisture On Windshield Or Water On Floor
PIC5398B2023-12-11. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Mist From Instrument Panel Vents, Moisture On Windshield Or Water On Floor.
13142B2023-12-11. Service bulletin. ELECTRICAL SYSTEM. PSR-Replace Generator Control Module - Equipped with eAssist
13142A2023-12-11. Service bulletin. ELECTRICAL SYSTEM. PSR-Loss of Battery Charge - Inspect Generator Control Module -Equipped with eAssist
131422023-12-11. Service bulletin. ELECTRICAL SYSTEM. PSR-Loss of Battery Charge - Inspect Generator Control Module
13136C2023-12-11. Service bulletin. ELECTRICAL SYSTEM. PSR-Loss of Battery Charge - Inspect Generator Control Module
13136B2023-12-11. Service bulletin. ELECTRICAL SYSTEM. PSR-Loss of Battery Charge - Inspect Generator Control Module
13136A2023-12-11. Service bulletin. ELECTRICAL SYSTEM. PSR-Loss of Battery Charge - Inspect Generator Control Module
131362023-12-11. Service bulletin. ELECTRICAL SYSTEM. PSR-Loss of Battery Charge - Inspect Generator Control Module
1300890082023-12-11. Service bulletin. ELECTRICAL SYSTEM:WIRING. GM Wiring Repair Strategy Information
1300890032023-12-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Vehicle Software Enhancements
23-NA-1622023-12-09. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; POWER TRAIN. This service bulletin advises the tech of updated Diagnostic procedures in Service Information (SI) to avoid misdiagnosis when addressing a customer concern of Service Rear Axle Message displayed on the Driver information Center (DIC).
PIT5236B2023-12-04. Service bulletin. ELECTRICAL SYSTEM. OnStar Module Does Not Support All B101D Symptom Codes.
12238D2023-12-04. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Loss of Battery Charge ? Inspect Generator Control Module
12238C2023-12-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Loss of Battery Charge ? Inspect Generator Control Module
12238B2023-12-04. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Loss of Battery Charge ? Inspect Generator Control Module
12238A2023-12-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Loss of Battery Charge ? Inspect Generator Control Module
120601009A2023-12-04. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; TRAILER HITCHES. Accessory Power Outlet and Trailer Lighting Fuse Replacement Labor Operation N1720 Fuse Replacement
1200890082023-12-04. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT. High Voltage Battery Section Serviceability - Essential Tool EL-50332
120089002A2023-12-04. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER; EQUIPMENT. Requesting a New Key Code for Customer with Lost or Stolen Keys
PIT5030E2023-11-20. Service bulletin. ELECTRICAL SYSTEM. Intermittent No Crank When Ignition Key Is Turned To The Crank.
07-08-49-020R2023-10-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. This informational bulletin provides information for the IPC odometer programming method quick reference guide.

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