How do you replace the front turn signal bulb in a 2003 Buick Century? Looks like you have to remove the plastic guard?

Check this video John. Front Turn Signal Change Buick Century 1997 2005 1999 Buick Century...

open hood look for the light assembley powercords that go into the headlamp..turn right or left to loosen ... you may have to just take a screw driver and remove the cover over the signal light. press in and turn and replace.

its the same bulb but a different filament in the bulb.open the trunk and you may have to move the trunk rug out of the way and you should see about what looks like 6 wing nuts that have to be removed then pulled out the tailight assembly to change the bulb.

if im thinking rigth, the turn signal is in the front bumper if is reach in behind bumper & twist bulb out

there is a flasher for both 4 way & regular turn signals ( check to make sure the bulbs are good
the backs are easy >>> Just step on the brake, If the lights light up the bulbs are good you my have to remove the bulbs one at a time in the front check your ground wires to the lights if everything is good replace the flasher unit if that fails replace the turn signal switch

u wont it should just pry off

You will need to remove the lights in most cases. There should be a panel to remove and some plastic windnuts.

There is a plastic valve on the driver side of the radiator ,but to find it you must remove black plastic guard/shield under the radiator which is held in by5 or 6 screws. the plastic valve can then be opened with a 1/4 " ratchet

It is the blinker bulb more than likely. When one burns out it does this so you know to replace. Just open up the trunk and remove assembly from inside trunk remove bulb and replace. Should fix it.

check wire contacts in socket. If they are melted change the socket
It can be removed easily just unplug the wires.
I have replaced both front sockets on my 1999 Buick Century.
Hope this helps.
Ron