Side buttons on dash to left of steering whell the one with I on it keep pressing till come to metric then i believe its second button down from I i havent worked on one for long time so trying to remember from memmory the buttons are there i have my books but not with me at momment
How about on a 1991 (Park Avenue Ultra), any ideas?
If the technology is still mechanical you would need to switch out dash panel for us
Hate the return button
Ok lets see if i can finish this reply now if it has the computer two places it would be for buick in the radio settings awesome radio or the infomation button should be on left side of speedometer looks like right side trip meter button you press or hold it till menu comes up
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