I have recently brought a late 2017 xc60 and it has a function on the remote key that no one can seem to explain...... help please!
If I briefly press the tailgate release button on the key, but not long enough to open the tailgate, the hazards light flash once and a fan type noise starts in the engine bay near the base of the windscreen - this will run for around 30 seconds. Once stopped if I try to repeat the function the hazards will flash twice - no fan noise.
Can anyone advise what this is? Thanks