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
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Only bulletins with component: Cooling system are shown. Show all
| 21NA257 | 2021-12-27. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This service bulletin provides a service procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3075 Set. |
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| 20NA028 | 2021-12-20. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This service 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. |
| 20NA154 | 2020-09-28. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This Technical bulletin provides a procedure to correct a customer concern of a Flutter or Boom Noise around 1100 RPM. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.