How can I replace right front turn signal assembly?

Bad bulb ,& or socket

Changing front, right turn signal on 2005 Buick Terraza: Open hood; when facing the front of vehicle, the right turn signal is on the passenger side (left). The headlight assembly needs to be removed to easily reach the turn signal. On my vehicle, there is a 10 mm screw on the left side. Remove it. There is L-shaped pin on the right side of the headlight assembly. Swing the pin counter-clockwise (to the left). Pull the pin straight up to remove. The headlight assembly is now loose, but there is a pin snapped in a socket on the back of the assembly that still holds the assembly. Pull the headlight assembly hard and straight to the front of the vehicle. When it snaps loose, the assembly is now held just by the rubber gasket surrounding the assembly. You need to gently work the right side of the gasket out of the grill cowling. The assembly should pull straight out. The wires are long enough to lay the headlight assembly in the engine compartment. Finally, the turn signal is now accessible. Twist the light holder counter-clockwise and pull out the light holder. Change the bulb. Do not punch your man-card for credit until you have successfully reinstalled the headlight assembly. It goes back in a little easier the second time. Once you have put the L-pin in place, the screw back, and successfully tested the lights, you can now punch your man-card.

I give the mechanical engineers and designers a D-minus instead of an F only because I was successful on the first try. No light bulb on anything commonly used by people should be this hard to figure out.

There are detailed instructions in the the manual. If you do not have a manual, here is how to do it (directions assume removing drivers-side headlight assembly and viewing the area from the front of the van): Remove the thumb screw on the left side of the headlight assembly as well as the thumb screw on the top of the head light assembly. The third thumb screw simply anchors the turn-signal assembly to the head light assembly. Initially, just loosen that screw. The whole assembly is now loose but still held in by two plastic posts on the bottom of the headlight assembly and two plastic posts on the end of the turn-signal assembly closest to the fender/wheel area. Pull the whole assembly kind of up, out, and down. It takes a bit of juggling but it will come out. Once the whole assembly is out you can separate the turn-signal assembly from the head light assembly and put the headlight assembly back in place. To separate the assemblies remove the third thumb screw (if its too tight to remove by hand you will need a Torx screw driver of size T-30; if you don't have a Torx a small flathead screw can work); also, you will notice the hidden clip that is the final anchor holding the turn-signal assembly to the head light assembly. Use a flat-head screw driver to release it. Now the units should be separated. To remove the turn signal bulb socket from the turn-signal assembly, simply turn it counter-clockwise while pressing down on the safety clip and pull it out of the back of the turn-signal assembly. The owners manual lists the type of bulb. It should be an amber 3157. The bulb pulls straight out of the socket.

Replace the bulb. Place the socket back into the turn-signal assembly (turn it clockwise until the safety clip snaps). Replace the Headlight assembly (two thumb screws and the two plastic alignment posts anchor it), but do not tighten the screws until the turn-signal assembly is in place. Replace the turn-signal assembly by first aligning the plastic posts and then anchoring it to the head light assembly with the third thumb screw. Make sure everything is aligned properly and tight all the thumb screws. An experienced person can probably make this change, start to finish, in 15 minutes. First timers will probably take 30 minutes as it takes some time to understand how the designers anchored everything.

Good luck and thank you for using Fixya

1. Remove the front turn signal assembly mounting screws and slide the assembly forward, out of the vehicle body.

2.Twist the bulb socket a quarter turn counterclockwise, then remove the bulb assembly from the housing

3.The defective bulb can then be removed from the socket and replaced.

4. Installation of the front turn signal assembly is the reverse of removal.

1.Remove the front turn signal assembly mounting screws and slide the assembly forward, out of the vehicle body.
2.Twist the bulb socket a quarter turn counterclockwise, then remove the bulb assembly from the housing
3.The defective bulb can then be removed from the socket and replaced.
4. Installation of the front turn signal assembly is the reverse of removal.

Remove the splash shield that fits across the top (under the hood). You need to carefully pry the six bolt-style plastic clips off that hold it.
The signal lamp assembly is removed by releasing a clip which is located between the headlamp assembly and signal lamp assembly. There is a slot in the top to insert a screwdriver. Push down on the clip and the signal assembly should slide right out.

check once more the front turn bulbs, connections, fuse if front and rear have a separate one. Once you connect the front turn signal, blinking frequency should normalize.

Well, seeing that you have a multimeter, check power at the socket and make sure it has power there. If there isn't then your wiring has an issue somewhere.

There is one screw on top of headlight assembly that holds turn signal lens in place you have to remove that screw and pull lens straight out. As far as head lamps go its just a matter of getting your hand behind headlight assembly to remove the collar that holds the bulbs in place.

*The Turn signal on the Side of the car next to the headlight*
1. Open the retractable headlights.
2. Remove the plastic shroud around the headlight: two screws in front and one on each side.
3. Look to the outside of the headlight and you will see a single screw in a small plastic cover on the front inside edge of the signal light assembly. The headlight prevents you from getting at the screw straight-on. I broke it loose with an offset phillips screwdriver, and then backed it out with a regular phillips.
4. Remove the plastic cover, and you will see two screws. Remove them.
5. Now you can pull the turn signal assembly forward and out.
6. To remove the bulb holders from the assembly, twist counterclockwise and pull out.
7. Pull straight outward to remove the bulbs. To assemble, follow the steps in reverse. Note that there are two plastic rods on the back end of the turn signal assembly that you will insert into two holes in the channel of the fender

*The turn signal in the bumper*
1. You will need a phillips head And Flat head screw driver, right below the turn signal there is a panel that you can pop out, (or its allready gone, Looks like a Fog light can go in there.)
2. once u find that, (Pretty easy to find) Look directly up in there., there is styrofoam up there and u will also notice a little hole,
3. Stick the Phillips head screw driver in that hole and turn it counter clockwize, The screw will not fall out,
4.once it feels like the screw is loose put the flat head in between the turn signal lense and bumper, the side where you unscrewed it and SLOWLY pry it out,
4. once out, just twist the plug and replace light bulb
to replace just reverse instructions