Uluhlu lwezixhobo ezisetyenziselwa ukutshintsha okanye ukugcina indlela yokuqhuba okanye ukubuya umva kwemoto kuthiwa yinkqubo yokuqhuba.Umsebenzi wenkqubo yokulawula imoto kukulawula icala lemoto ngokweminqweno yomqhubi.Inkqubo yokulawula imoto ibaluleke kakhulu kukhuseleko lwemoto, ngoko ke iinxalenye zenkqubo yokulawula imoto zibizwa ngokuba ziindawo zokhuseleko.Inkqubo yokuqhuba imoto kunye nenkqubo yokuqhobosha ziinkqubo ezimbini ekufuneka ziqwalaselwe ukhuseleko lwemoto.