Select from the voice navigation dropdown. Click Preview (this activates the sound in the background).
: Confirmed for the Freight Market and External Contracts.
: Other road or trailer tire sound mods must be disabled to prevent conflicts. Reefer trailer sound addon for ETS2 - Steam Community REEFER TRAILER SOUND ADDON V1.0.8 1.46
: Fully supports base game trailers and specific DLC packs including Schwarzmüller , Krone (Cool Liner), TIRSAN (SRI), and Schmitz Cargobull (S.KO Cool).
For owned trailers or unsupported third-party mods, the developer included a manual workaround via the menu: Navigate to Audio Settings . Select from the voice navigation dropdown
: Adds a constant engine hum that is audible both outside the trailer and from within the truck cabin.
As reefer sounds are not yet a standard SCS Software feature, players should note: : Other road or trailer tire sound mods
: Functional, though you may need to disconnect and reconnect the trailer once to trigger the sound cycle. The "Voice Navigation" Workaround