Subaru Ascent 2019–2024 — technical service bulletin
Bulletin 09-117-24 · NHTSA communication 10253953 · issued Apr 9, 2024
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2024
model years
16
vehicle entries
Official summary
This bulletin announces the availability of new reprogramming files developed to address cases of DTC P0890 (TCM Power Relay Sense Circuit Low) detected by the Engine Control Module (ECM).
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.