I have a 2003 Sequoia. I need to change the bulb in my break light on the passenger side. How can I do this?

Me too, same problem here.

Over time corrosion can accumulated and rust out a tail light socket and render it non-functioning. Yes it can be replaced and in your case for about $6.00. You can find these at most any auto parts store.

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yes

Drivers side- stick your hand behind the headlight and remove the rubber cover, and twist out the light.

Passenger side- remove the air cleaner top, and move the air cleaner out of the way. You now have complete access to this side to remove the rubber boot covering the bulb.

check the electrical contacts within the bulb fixture for oxidation or damage. Check also the wires and wire harness for damage or connection problems.

How do you change a light bulb on the passenger side mirror of a 2006 ford expedition?

Remove the two screws holding the tail light cover in place along the edge of the tail light assembly.

After you remove the two screws in the back panel, you have to pull the assembly out towards the side of the vehicle. You cannot pull it straight back from the trunk or you will break the pins that hold the lens cover onto the side of the SUV.

There are two pins that allow the light cover to be secured against the back of the truck. One pin is towards the top, the other pin is towards the bottom.

Twist out the bulb assembly.
Pull out the bulb
Insert the new bulb
Twist back in the bulb assembly
Place the pins over the pin holes in the light cover mold on the side of the truck
Push in gently Replace screws and you are done.

Check the common earth connection is present at the lamp socket.

OPEN THE HOOD, THE BULB IS HELD IN PLACE BY A ROUND TWIST TO LOCK/UNLOCK RETAINER, PULL THAT BACK AND REMOVE THE BULB BY WIGGLING IT AND PULLING STRAIGHT BACK.
CAUTION, DON'T TOUCH THE NEW BULB, IT WILL BREAK SOON AFTER YOU TURN IT ON FORM THE OIL ON YOUR SKIN, IF YOU DO TOUCH IT CLEAN IT OFF WITH RUBBING ALCOHOL.

Assuming you are talking about the side marker bulb in the bumper, you need to get behind the bumper and un bolt the lens from the back side to change lens or if just bulb replacement twist socket counterclockwise to remove from lens and then change bulb. Keep in mind if the bumper has been hit this will be very difficult to do unless you loosen up bumper and pull out.