Chevrolet Volt 2016–2019 — technical service bulletin
Bulletin 24-NA-080 · NHTSA communication 11010577 · issued Oct 12, 2024
Technical service bulletin
communication type
Engine
component
2016–2019
model years
4
vehicle entries
Official summary
This service bulletin advises the tech to check the wiring harness to validate that the harness is not the cause of the check engine light and to replace the EGR to correct a customer concern of MIL Illuminated.
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.