Subaru Crosstrek 2019–2022 — technical service bulletin
Bulletin 18-225-24 · NHTSA communication 11008272 · issued Sep 19, 2024
Technical service bulletin
communication type
Electrical System
component
2019–2022
model years
4
vehicle entries
Official summary
This Bulletin announces the diagnostic procedures to be followed when diagnosing DTC B145C (Heat Pump ECU Communication).
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.