Cadillac Repair: E/M switch, digital speedometer, climate control

Question
I have a 1988 Cad, DeVille, on the instrument panel, somehow it got converted to Metric, I would like to convert it back to English. The Owners Manual says there is a switch on the left side of the Odometer, but I cannot find any switch, where would it be located, It's not on the front of the panel, could it be on the back?

Answer
Look on your climate control panel  the last button should say ENGL
                                                              METRIC

Push the button. This IS ONLY if you have a digital speedometer.

If you have the old style needle speedometer let me know.