new to my 2001 blazer. cannot seem to change the numbers on the overhead display....as in Gallons used or Miles per gallon etc? have tried holding the button ( appears to be a reset button ) in, but nothing happens. What am i doing wrong?

 

Not looking in your owner manual?

http://www.extendedgmwarranty.com/ow...let-Blazer.pdf

 

thanks pettyfog...i actually read that thing from front to back, but spaced out on the overhead somehow