2002 Century Instrument Cluster lights and tail lights went out.

Check 20Amp LP Park Fuse in Underhood Fuse Block (mounted to right strut tower) Check 15Amp Tail Lic. Lamp Fuse In IP Fuse Block.

check fuses under dash and under hood

There are a total of six fuses that control exterior lights and dash lights. Check all of these Fuses: 10, 21, 3, 7, 13, 33
Does the high mount stop light work when you apply the brakes?

is it on the dash?...digital?..near the odometer?

your instrument cluster may need repair.
common problem.
check out ebay for "instrument cluster repair"
eg
http://shop.ebay.com/i.html?_nkw=instrument+cluster+repair&_sacat=0&_dmpt=Motors_Car_Truck_Parts_Accessories&_odkw=buick+century+instrument+cluster+repair&_osacat=0&_trksid=p3286.c0.m270.l1313

just do a little searching on ebay

let me know if this helps..

same as my 2003 buick regal..
a common problem..
i sent mine to have it repaired. about $120 i think it was..

go to ebay. and search "instrument cluster repair"...or if you ar confident..go to youtube and search " buick instrument cluster repair"

let us know how it goes for ya

Replace the fuse. Most of the time when the tail light fuse is blown it will go un-noticed. This is why they combine the instrument cluster lighting, and tail lights on the same fuse. That way if the dash lights are out you know the tail lights must be out also.

the odometer display on this speedo is a LED, they burn out and must be replaced as a module, u will need to pull the instrument cluster out and send it in for repair, cost is around $250

if its not the fuse then you have a bad headlight switch

No. 2001 to 2003 are interchangeable. I am currently looking to replace mine on a 2002 and have consistently been told those years are the same. These babys are pricey, perhaps you can trade your 2004 for one that will work.

The fuse box box cover panel is on the left of steering column.
Fuse #41- 10A* Instrument cluster
Fuse #17- 15A* Exterior lamps
See inside of fuse box cover for a full chart of fuses and relays.