Turn signal flasher may be defective
Blown bulb.
pull the blinker lever towards you. and they will click off
There is a long bolt on top of the headlight/blinker assembly. Remove this bolt and slide the entire headlight/blinker assembly out just enough that you can see the bulb socket. Twist the socket and it will pop right out.
Because its a 1988 Buick LeSabre
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