Service bulletins for the 2020 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.
638 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 1008110001I | 2021-05-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on proper use of floor mats. |
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| 21NA055 | 2021-05-03. Service bulletin. EQUIPMENT. This service bulletin provides repair information to correct a customer concern of Volume Level Difference When Switching Between FM and Sirius XM Audio Sources. |
| 20NA138 | 2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management. |
| 20NA132 | 2021-05-03. Service bulletin. ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements. |
| 20NA121 | 2021-05-03. Service bulletin. STRUCTURE. This service bulletin provides a procedure to locate and fix a possible leak in the roof area due to missing sealant to correct customer concerns of Various Electrical Issues, No Start, Stall, Brake Lamp Not Off, Radio Inoperative, Remote Key Inoperative, Malfunction Indicator Lamp (MIL) Illuminated. |
| 20NA028 | 2021-05-03. Service bulletin. VISIBILITY. This bulletin is to inform dealers that in extreme cold weather, a grille winter cover needs be added during PDI to avoid the customer returning with concerns related to charge air cooler icing. |
| 20NA024 | 2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a information and diagnostic steps/tips for vehicles that are slow to heat up in cold temperatures. |
| 19NA200 | 2021-05-03. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797. |
| 18NA306 | 2021-05-03. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). |
| 18NA099 | 2021-05-03. Service bulletin. EQUIPMENT. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
| 16NA109 | 2021-05-03. Service bulletin. STEERING. This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear. |
| PIP5712B | 2021-04-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR; POWER TRAIN. This Preliminary information communicates to the technician a service Diagnostic / Repair tip to avoid causing the crankshaft sprocket to disengage from the crankshaft during crankshaft balancer or cam drive system component related service procedures. |
| PIT5745B | 2021-04-19. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw. |
| PIP5712A | 2021-04-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. This Preliminary information communicates to the technician a service Diagnostic / Repair tip to avoid causing the crankshaft sprocket to disengage from the crankshaft during crankshaft balancer removal. |
| PIP5733M | 2021-04-19. Service bulletin. POWER TRAIN. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation |
| PIE0605A | 2021-03-08. Service bulletin. EQUIPMENT; SERVICE BRAKES. This engineering information (EI) Lite is requesting technicians follow the steps in this EI and submit a Field Product Report with the requested information and Submit in regards to a front brake noise Condition. |
| 150089004C | 2021-03-08. Service bulletin. SUSPENSION:FRONT:MACPHERSON STRUT; SUSPENSION:FRONT:SHOCK ABSORBER; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. 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. |
| 21NA026 | 2021-03-08. Service bulletin. EQUIPMENT; STRUCTURE; EQUIPMENT ADAPTIVE/MOBILITY. This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen. |
| 21NA014 | 2021-03-01. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT. This technical bulletin provides a procedure to relocate the ground wire from the G58 Emission Purge Pump to the engine block directly to correct the customers concern. |
| 21NA004 | 2021-03-01. Service bulletin. POWER TRAIN; EQUIPMENT. This service bulletin provides information explaining possible normal CVT automatic transmission performance. |
| 20NA121 | 2021-03-01. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This service bulletin provides a procedure to locate and fix a possible leak in the roof area due to missing sealant. |
| 18NA073 | 2021-03-01. Service bulletin. ENGINE. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. |
| PIE0605 | 2021-03-01. Service bulletin. SERVICE BRAKES. This engineering information (EI) Lite is requesting technicians follow the steps in this EI and submit a Field Product Report with the requested information and Submit in regards to a front brake noise Condition. |
| PIE0565B | 2021-03-01. Service bulletin. EQUIPMENT; FORWARD COLLISION AVOIDANCE. This engineering information (EI) closure ends the need for information from the field in regards to the Lane Keep Assist/Forward Collision Alert (if equipped)/Adaptive Cruise Control being inoperative. |
| 040089015V | 2021-03-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.