NISSAN 2015 Altima Sedan - Owner's Manual - Manual (Page 351)

4. Slowly rock the vehicle forward and back-
ward.
● Shift back and forth between R (Reverse)
and D (Drive).
● Apply the accelerator as little as possible
to maintain the rocking motion.
● Release the accelerator pedal before
shifting between R (Reverse) and D
(Drive).
● Do not spin the tires above 35 mph
(55 km/h).
5. If the vehicle cannot be freed after a few
tries, contact a professional towing service
to remove the vehicle.
6-14 In case of emergency