We have studied the low‐field magnetoresistance of the two‐dimensional electron gas in GaAs/<m1;&33>AlxGa1−xAs in the presence of a two‐dimensional lateral surface superlattice (2D LSSL) potential, and observed, for the first time, the guiding‐center drift resonance, previously reported for one‐dimensional LSSL structures. The 2D LSSL potential is created by applying a voltageVgto a 200 nm period grid‐gate structure fabricated on top of the sample and can be tuned continuously from being repulsive to attractive by tuningVg.