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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.
well its a tricky situation, we do not know if this is the best way but we made it work...
1. start the engine and turn the tires to the left all the way, shut off the engine. in front of the front passenger tire there will be 4 phillup head screws. remove all 4 phillup head screws that are attached to the bumper molding, and remove the 10 millimeter hex head bolt that is near the bottom screw. then spread the plastic molding away from the bumber molding which will give you limited access to the blinker bulb assembly. now this is the tight spot. quarter turn counter clickwise and remove the bulb assembly from the lamp fixture. carefully spread the tabs that hold the bulb assembly to the socket. and then replace and remove the bulb and then put it all together again. or you could go and get it fixed. Good luck!
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
If they are sealed bearings, you will need a press to get them out. If they are bolt in, just remove the brake pads/rotors, then the axle nut, then the bolts holding the wheel bearing in. Install in reverse order.
ithere are 4 bolts that hold it in...the top 2 are obvious..the others are behind the bumper. the bumper must be removed to acces them...here are the manuals instructions..
Headlamp assembly bolts (3 required)
Headlamp assembly nut
Electrical connectors Removal and Installation NOTE: Make sure the headlamp switch and the ignition switch are in the OFF position.
Remove the front bumper cover. For additional information, refer to Section 501-19.
Remove the 3 headlamp assembly bolts.
To install, tighten to 5 Nm (44 lb-in).
Remove the headlamp assembly nut and the headlamp assembly.