I asked Google what an HCM filter is and Google says the following (note the kudos to BajaRon in the last paragraph)
An HCM (Hydraulic Control Module) filter on a Can-Am Spyder (
https://www.google.com/search?q=can-am+spyder&kgmid=/m/05s_m87) is a specialized secondary transmission oil filter used exclusively on semi-automatic (SE6) models. (1, 2)
## What It Does
* Protects the Transmission: It is a double-layer suction filter (featuring a 10-micron fiberglass fleece and a 50-micron metallic screen) that traps tiny metallic bits and debris. (1)
* Supports Semi-Automatic Shifting: Because the SE6 semi-automatic transmission relies on hydraulic pressure and tight-tolerance electronic solenoids to shift gears, clean oil is vital to prevent clogs, wear, and shifting errors. (1, 2)
* Model Specificity: It is only found on semi-automatic (SE6) 1330 ACE engines (such as the Spyder F3 and RT). Manual transmission (SM6) Spyders do not have an HCM or an HCM filter; that area on the engine block is left blank. (2)
## Maintenance & Replacement
* Location: The filter is hidden behind the vehicle's body panels ("tupperware") near the clutch/transmission housing, meaning side panels must be removed to access it. (3, 4)
* Replacement Interval: While factory or community recommendations vary, many owners and aftermarket suppliers like BajaRon note that it has a long service life (often rated around 24,000 to 28,000 miles/45,000 km), though checking it during major services is recommended. (5, 6, 7, 8)