What year? All lights? Check your fuse box.
Yes
dash lights relay
Your dash and tail lights share the same fuse and power feed. Check and replace the fuse first, even if it looks good, and then start to troubleshoot the wiring.
take it to a garrage
You have to replace the whole button.
Check to see if parking and tailights are working - same circuit could be a blown fuse
check your fuses
Still looking for fuse box on 1992 Delta 88....anyone?
How to change a timing chain in a 1998 Oldsmobile delta 88
transmission fluid is checked with the car cooled off -never when running-(daddmac)
Fuse 17 in a 1993 delta 88 Oldsmobile controls the air conditioner
a 93 delta 88 comes stock with a 18 gallon gas tank
No inertia switch on an Oldsmobile.