Garanti y'imashini izaba amezi 12 uhereye igihe umucuruzi agurishirije imashini ku mukoresha wa nyuma.
Ushinzwe gutanga garanti ku mashini azaha umukoresha wa nyuma garanti n'umucuruzi. Ushinzwe gutanga mashini agomba gutanga serivisi nziza ku mukoresha wa nyuma, harimo n'amahugurwa ya tekiniki yo gukoresha no kubungabunga no gusana mashini.
Isosiyete ya Gookma itanga ubufasha mu bya tekiniki ku mucuruzi. Umucuruzi ashobora kohereza abatekinisiye be muri Gookma kugira ngo bahugurwe mu bya tekiniki, bibaye ngombwa.
Gookma itanga ibikoresho byihuse byo gutanga ku bacuruzi.
