Chevrolet Blazer 2020–2022 — technical service bulletin
Bulletin 21-NA-248 · NHTSA communication 10217066 · issued Jul 18, 2022
Technical service bulletin
communication type
Equipment
component
2020–2022
model years
5
vehicle entries
Official summary
This technical bulletin provides a procedure on the A/C blows warm air intermittently and/or takes a long time to cool.
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.