Chevrolet Equinox 2023 — technical service bulletin
Bulletin 23-NA-033 · NHTSA communication 10233348 · issued Mar 8, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2023
model years
2
vehicle entries
Official summary
This service bulletin provides a procedure to replace the ECM to correct customer concerns of a rattle noise during cold start, Malfunction Indicator Lamp (MIL) Illuminated - DTC P2261 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.