  We study the impact of the dynamical Lorentz symmetry breaking induced by the
auxiliary gauge fields of neutrino on the oscillations probability at DUNE. The
DLSB introduces an alternative energy-momentum relation of the neutrinos and
thus results in a new oscillation probability. We extend the previously
proposed four-Majorana fermion model that gives rise to DLSB after the type II
seesaw mechanism by considering the electron neutrino forward scattering when
passing through a medium. Moreover, we incorporate the three-flavor neutrino
states, which introduce the CP-violation term inside the oscillation
probability. The impact of DLSB parameters around the order of
$10^{-2}-10^{-3}$, which are at a strong coupling regime, on the oscillation
probability is found to be measurable at DUNE within the 20 years through
$\nu_e$ and $\overline{\nu}_e$ disappearance signals. We also compare the
predicted spectra of the DLSB oscillations and the oscillation with the
CP-violating term equal to $\pi/2$ to conclude that the presence of DLSB would
increase the systematic uncertainty for the measurement of CP-violation at
DUNE.
