Chevrolet Bolt Euv 2017–2023 — technical service bulletin
Bulletin 21-NA-210 · NHTSA communication 10242109 · issued Aug 11, 2023
Technical service bulletin
communication type
Equipment
component
2017–2023
model years
9
vehicle entries
Official summary
This service bulletin provides information on observing visible cracks on A/C Evaporator Hose and that it is a normal condition.
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.