it is most likely a burnt out fuse, or the whole instrument cluster is shot. that happened to my 2002 impala. all gauges froze, and nothing worked. I would check the fuse first before replacing the entire cluster. Best of luck
look in your owners manual and it will tell you.
rpm and speedometer gauges not working 1995 Chevy silverado 2wd
If your Chevy trailblazer 2004 gauges are not working, check your fuel pump.
There is no speedometer cable anymore, it's all electronic.
If the speedometer is not working but the odometer is, I would suspect the dash cluster is at fault. If both speedometer and odometer are not working I would suspect the speed sensor on the transmission is at fault.
go to a repair shop
If the speedometer is not working it probably needs a new speedometer cable. If the speedometer is actually broken either take it to as speedometer repair shop or replace it.
It has no fuse you have to replace the bulb/s itself
It could be a problem with your transmission. The same thing just happened to me. It required replacing some of the internal transmission parts, but did not require replacing the entire transmission.
The RPM is not working on 2002 chevy impala LS. transmission and engine sounds good- no problem. what's wrong
Check the fuses.
chevy impala