Subaru OUTBACK 2016 Quick Reference Manual page 15

G
Memory switch (if equipped)
X-mode switch (Outback CVT models)
X-mode assists driving more comfortably even in slippery road conditions including uphill
and downhill.
X-mode switch
X-mode has the following functions.
Hill descent control function :
Driving ability control :
Your desired rear gate height can be registered.
X-mode indicator
Using this function, you can keep the vehicle at a
consistent speed driving downhill. If the vehicle speed
is likely to increase, the brake control system will be
activated to adjust the vehicle speed.
This mode increases the hill-climbing ability and driving
ability as well as enabling smooth application of torque for
easier control of the steering wheel.
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