[en] The intermediate-valence compound YbPd exhibit successive structural transitions at T_a = 125 K and T_b = 105 K that may involve valence order. However, little is known about the dynamical nature of the valence order as well as its relationship with the structural transition. In order to shed light on the nature of the structural transition, ¹⁰⁵Pd NMR measurements were performed. In the high-temperature cubic phase, a single-peak ¹⁰⁵Pd NMR spectrum was observed. By contrast, five peaks were observed at 4.2 K due to the appearance of the nuclear quadrupole interaction, which is clear evidence for crystal symmetry lowering. Unexpectedly, a decrease in the NMR intensity was observed from 160 K toward the structural transition at T_a. Since there is no magnetic order at T_a, the results indicate the development of low-energy fluctuations that may originate from Yb valence fluctuations toward the structural transition. (author)