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Service bulletins for the 2021 Buick Encore GX

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
N2223725912022-11-22. Service bulletin. ENGINE AND ENGINE COOLING. Certain vehicles may have a condition in which ice or sludge can accumulate in the Charge Air Cooler (CAC) or Closed Crankcase Ventilation (CCV) system when driving in extremely cold weather conditions (-18°C (0°F) or less). Dealers will reprogram the Engine Control Module.
PIT5940A2022-11-21. Service bulletin. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. This Preliminary information communicates that a customer may notice that the gridlines on the backup camera are very dim. They may mention that this occurred after an OTA update. The dealer technician is advised to perform no repairs. The technician is advised that engineering is looking into a resolution and the resolution will be communicated through this PI or a bulletin when it becomes available.
22-NA-1272022-11-09. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer concerns of radio software issues.
22-NA-1882022-11-03. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of MAF Sensor Calibration Update - DTCs P227C and P10BC Set After ECM Replacement.
22-NA-0082022-11-03. Service bulletin. ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM. This bulletin provides a procedure to locate a possible short in the wiring harness near the MAF sensor.
22-NA-2052022-11-02. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on Module Harvesting.
99-00-89-019X2022-10-28. Service bulletin. STRUCTURE. This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.
10-00-89-006I2022-10-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).
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).
22-NA-1952022-10-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on Handling Requests for Modifications to Permanently Import/Export Vehicles Between the U.S. and Canada.
22-NA-0092022-10-12. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
15-00-89-004E2022-10-11. Service bulletin. POWER TRAIN; SUSPENSION; ENGINE AND ENGINE COOLING; SERVICE BRAKES, HYDRAULIC; STEERING. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
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.
09-06-04-026W2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
07-06-01-016H2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
06-00-89-031H2022-10-11. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
05-06-04-022T2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
05-00-89-072F2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.
04-06-04-051G2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
01-06-01-011M2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
01-00-89-010Q2022-10-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
00-06-01-012L2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
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.
16-NA-2222022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
11-00-89-005U2022-10-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

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