in my 84 Z28 i have never once seen any of the lights that come on on the lower part of the guage panel, and then one day i started my car and all the sudden the fasten belts light came on and then faded away, its been doing this every other day or time i start the car, not sure why, but also the Upshift light came on once too, its in an automatic car but the 145 gauges i think came outta a 86 IROC with manual tranny. i was just wondering maybe why it did this, and if theres a cure to get all of the lights to work....

 

the fasten belt light should always come on then go away. but the upshift light i never heard of.