1987 metric to english

[robertcadi87]

i own an 87 deville and 87 eldroado i noticed that all the read outs on the deville are all in metric system and since i had my eldo i thought there was a master button to change this bak to the english system but there wasnt on the deville i tryed resting the systems but that dosnt work eigther i think it would be easier if i had the manual but i dont even wen i read things online abot there being a button under the left turn signal but there is no button there. i need som help.