Why did my battery light come on while driving my 2004 Oldsmobile silhouette?

SOURCE: Replacing dashboard lights on an 2000 Oldsmobile Silhouette Van?

the light bulbs are not replacable unless you can solder, you have to replace the complete instrument cluster, get one from a junk yard 100 bucks.

SOURCE: 2002 Oldsmobile Silhouette ABS Light is on and

The first thing i would check is all 4 abs sensors at the wheels.You can do this with a volt meter set on ac voltage and spin the wheel if it generates voltage at all on the meter its good.

SOURCE: Dead battery in 1999 Oldsmobile silhouette

you have to take the fuse box out. unhook the hot wire from the front of the fuse box.then there is a little black holder with which you can take a flat head screwdriver and lift the little peg in the middle of it which will then come out. then just pull the fuse box off to the side and u should be to the battery.hope this helps

SOURCE: 2004 Oldsmobile Silhouette abs and all wheel drive disabled light

MOST LIKELY A BAD WHEEL SPEED SENSOR/WHEEL BEARING ASSEMBLY.

SOURCE: changed battery oldsmobile 2001 silhouette

a. try turning the key to accessory and leaving it there until the error light goes out. b. if you haven't yet, drive it 20-30 miles and let the main computer reset itself.
hopefully, that should solve the problem!
good luck!