WHAT DOES THE INSTRUMENT CLUSTER ON A 2000 BUICK CENTURY CONTROL? WHAT CAN GO WRONG WITH A BAD CLUSTER?

There is not a single fuse for the fuel gauge , there are a few that power up the whole instrument cluster ! If there were a fuse out more then just your fuel gauge wouldn't work .You probably have a bad sending unit in the fuel tank or the stepper motor for that gauge is bad ! The thing to do would be to take to the dealer or some other capable ASE certified repair shop that has a up scale scan tool that can check codes in the instrument cluster ! Or you can take a chance an replace the instrument cluster !
Fuel Gage Inaccurate or Inoperative
Inspect for any stored instrument cluster Diagnostic Trouble Codes (DTCs). Are any DTCs stored in memory?
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Go to Diagnostic Trouble Code (DTC) List/Type
Go to Step 3

3

1. Install a Scan Tool scan tool.
2. Turn the ignition switch to the RUN position.
3. Establish communication with the instrument cluster.
4. Select special functions under the main menu.
5. Select output control under special functions.
6. Select fuel gauge sweep test under output control main menu.

Does the fuel gauge perform a full sweep when commanded?
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Go to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 3.1L
or
Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 3.8L
Go to Step 4

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..

The instrument cluster in the 2000 Buick Century features an analog odometer that is back-lit, making it possible to see during night driving. Over time this light has a tendency to burn out, which can make for unsafe night driving as the driver will not be able to see all of the information usually at his disposal while driving. Replacing this light takes some time and requires you to be careful when disconnecting the wiring harnesses.
jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); }); Difficulty: Moderate Instructions

1. Pry off the fuse box over on the passenger side and then remove the screw inside with a screwdriver.
   
2. 2 Unscrew the screw on the far right side of the dash panel and then remove the panel.
   
3. 3 Remove the two screws underneath the temperature controls and then pry off the plastic trimming.
   
4. 4 Unscrew the one screw on the dash panel underneath the steering wheel.
   
5. 5 Disconnect the wiring harness from behind the interior panel and then pry off this entire panel.
   
6. 6 Unscrew the four screws around the instrument panel.
   
7. 7 Pull out the instrument panel and disconnect the wiring harness on the back of it.
   
8. 8 Twist the back of the bulb counterclockwise and then pull it out.
   
9. 9 Unscrew the old lightbulb and then screw in the new one.
   
10. 10 Reverse the steps to reassemble your dashboard.
    

probably you dimmer switch.Have you tried adjusting it when they flicker or go out? Or tap on the switch.

Sounds like your are going to have to send your instrument cluster out for repair also could possiablly be a dimmer problem.

The problem is blown resistors on the instrument panal circut board. the dash needs to be removed and instrument cluster. Resistors are on the circut board. between six and ten..

Sadly no, there is no fuse or bulb to replace. You either have to send the instrument cluster out for repair or replace it with a new unit from the dealer. You could also obtain a serviceable one from a salvage yard. Most shops should be able to replace the instrument cluster or advise who can repair it.

My experience has been they are not interchangeable - a number of sensors are usually unique to the specific cluster type installed.

it will register the car it came out of and you can not change the milage you would nrrd to send it out

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.