this is a breakdown of the dash http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/17/13/9a/0900823d8017139a.jsp
pull the top off of the shift indicator..replace bulb.. !!! I believe they are talking about the shift indicator in the instrument panel. An astro van is on the column and the indicator on the newer ones I believe is an LCD, 95 may be like my Tahoe though where there is just a back lit line under a printed legend. If that is the case I would assume it is a bulb but don't know for sure.
You have to replace the entire instrument cluster
If the vehicle will stall and will not restart or appears to be out of fuel but the fuel gauge reads above empty, replace the fuel sensor assembly and auxiliary tank fuel level sensor if equipped. if not, replace the instrument cluster.
you cannot service panel lights on 2000 impala . you hav to replace the instrument cluster.
The illumination switch may be in the off position.
You need to remove the dash in order to get back there to replace any blown bulbs.
You have to remove the instrument cluster to service the light bulbs.
You can't you have to replace the whole dashboard instrument cluster assy.
Hard to do , didn't Corsicas only start in 88??
See {Warning Lights, Gages and Indicators} on page 3-26 of your "Owner's Manual", under Section 3: Instrument Panel.....
There is no m on the indicator
If you mean illumination for nighttime on the dashboard it can be the fuse or the dimmer itself. All the illumination runs through a single 20A fuse in the panel on the side of the dashboard. All power runs through the dimmer switch so that can also be bad.