Buick Encore GX 2020–2023 — technical service bulletin
Bulletin 21-NA-293 · NHTSA communication 11013244 · issued Jan 17, 2025
Technical service bulletin
communication type
Engine
component
2020–2023
model years
7
vehicle entries
Official summary
This technical bulletin provides repair information to correct a customer concern of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler Icing - Malfunction Indicator Lamp (MIL) Illuminated, DTC P0299, P0234, P0236, P00C7 Set.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.