there are several possibilities first off check all your fuses before anything and make sure battery cables are tight with no corrosion second chevy has a problem with ignition switches spiking voltage and going out youll need a way to measure the voltage drop at the ignition switch third the cluster itself could be bad and there are companies that u can send them off to that rebuild them for cheaper than a oem replacement
led lights inside cluster
if the cluster still lights up but the speedo still inop possible cause is the speed sensor in the transmition
My dash lights went out and the cause was a bad alternator. new alternator fixed the problem
I found this on my 1997 Silverado and found the connection from the wiring harness to the back OS the switch itself was loose, I could wigle it arouns and make the lights come back on.
If the parking/tailight fuse is good - then it may be a bad headlight switch No tail lights but the bulbs are working? Please explain.
The lights on the odometer on a 1999 Chevy Blazer might not work because of a burned out fuse. They might also not work if the lights are burned out.
Replace the light bulbs that are burned out, usually from the back side of the instrument cluster.
One thing that could cause this would be a faulty ignition switch, specially if you do not have ignition (cluster) lights. Just a thought...
- Damaged or burnt wiring - Bad or corroded earth connection in the brake lamp cluster - Failed bulbs. (although it's unlikely that all your brake lights have blown) You can use a meter and a volunteer to check that power is reaching the bulb holder. If power is reaching the bulbs and they are working, then a bad earth connection may be the cause. Corrosion around the lamp cluster is a common cause of this. There may be problems with the other lights if the vehicle has a shared lamp cluster At any rate, it wouldn't do any harm to let a vehicle electrician take a look
Did you check for a blown fuse? Look for one marked TAIL LIGHTS. This is the one that would affect that would affect the tail lights and license plate light.
multi switch is bad
Press dome override button 3 or 4 times till you here a beep to put headlights and interior lights back on auto