Chevrolet Repair: 1985 chev s15 instrument cluster, diagonal line, instrument cluster

Question
Hello there. I have a 1985 chev s15 truck with a 2.8 engine which is carbureted instead of fuel injection. Recently i have a warning light come on and am not sure what this means. It's at the very top of the instrument cluster and it lights up showing a diagonal line running through a circle. Would appreciate any info as to what this might be. Thank you in advance, Leo

Answer
Hi Leo.... mmmmmm you got me on that one, i haven't seen that either. check owners manual there should be something on it there. i will do some checking. some times they have differant symbols for differant markets IE: canada or US but they mean the same thing....