I am afraid car will burn up?
I am having same problems with fuel pump and relay switch, 850.later any recalls on 2009 Buick Lucerne
run the VIN# for info. on any recalls. not under warranty? then bring to an independant shop for diagnostic and repair. dealership usually cost more $.
fuse and relay panel fault. possible contact between fused legs in top panel allowing too much current to flow into relay.
call dealer and they will adv on any recalls