To decrease the speed (by brake pedal)

1. Depress the brake pedal to release cruise control temporarily.

2. When the speed decreases to the desired speed, press the “RES/SET” switch to the “SET” side once. Now the desired speed is set and the vehicle will keep running at that speed without depressing the accelerator pedal.

    See also:

    Brake booster
    If the brake booster does not operate as described in the following, have it checked by your SUBARU dealer. 1. With the engine off, depress the brake pedal several times, applying the same pedal forc ...

    Engine
    ...

    Lubrication oil circulation in the refrigerant circuit
    Operate the air conditioner compressor at a low engine speed (at idle or low driving speeds) a few minutes each month during the off-season to circulate its oil. ...