Model Without Manual Mode
WARNING: This page is about a different car, the 2020 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
Drive in D range at [50 - 60 km/h (31 - 37 MPH)], and shift to "L" range. Check if the indicator of combination meter switches "D" → "L". At the same time, check the engine brake in L range.