Jeep Grand Cherokee 2021–2022 — technical service bulletin
Bulletin 9004526 · NHTSA communication 10227973 · issued Apr 27, 2022
Technical service bulletin
communication type
Visibility
component
2021–2022
model years
2
vehicle entries
Official summary
COMPRESSOR, Air Conditioning HVAC not blowing cold air, or does not work as designed. Please ensure the HVAC control module is at the latest software level prior to replacing the compressor as per Star Online publication S2224000003. Any questions, or concerns please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair. Software is available for 21MY per TSB 08-043-22 Rev. B and for 22MY per CSN Z33.
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.