From what I gather, your stove has electronic ignition. Chances are you have a button on your stove that looks like the one in the below picture? If you unscrew the silver portion you will find a AA battery. Try replacing that battery.
'07 K3500 Silverado LT Crew Duramax (LBZ)
2016 Salem 27RKSS
1984 CHEV SCOTTSDALE K20 2GCGK24J0E1XXXXXX (Chevrolet Legends-Class of 2019)
"...exhaust fluid? We don't need no stinkin' exhaust fluid"