Question about 2003 Buick Regal

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2003 Buick Regal rear tail lights

Tail lights mounted on deck lid and license plate light are out on left side but work on right side. Brake lights and turn signal on both sides do work. Only one fuse for both sides in fuse box and it is good.

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  • Expert
  • 202 Answers

Common water leak issue with the rear applique: Buicks 96-04. Remove entire assembly, remove all bulbs. Check for rust / corrosion. Spray all sockets with electrical cleaner and dab dielectric grease in sockets. Seal entire housing with a bead silicone and check for gaps. I know this sounds labor intensive , but it is the only way to fix GM's design flaw permanently. Good Luck and vote 4 me !

Posted on Jan 26, 2015

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  • Buick Master
  • 5,628 Answers

Could be rust.

Posted on May 10, 2013

  • Stephen Harvey May 11, 2013

    I live in the South. We don't have rust problems. It's an electrical component gone bad somewhere. Brake Lights and turn signals ARE WORKING on both sides. Only the left side (trunk lid mounted) tail lights and left side license plate light are out. This is a right VS, left side problem. One side works, the other does not.

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Posted on Jan 02, 2017

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SOURCE: 95 buick regal brake lights burn out when i turn on signal

could be a short in the wiring some where

Posted on Apr 28, 2009

  • 1 Answer

SOURCE: No tail lights or turn signal,just running lights and flashers

I had the same problem about a month ago myself. I had to replace a fuse which was under the driver side under the dash it cost me $6 to replace. I cant remember the name of the part but call a auto store and explain to them the problem. I think it was called a relay fuse or something! Good luck with that!

Posted on Jun 20, 2009

dmftrucker
  • 1922 Answers

SOURCE: How to replace a 2003 Buick Century rear tail light assembly?

open the trunk and unscrew the plastic nuts on the back side of the light assy and replace

Posted on Oct 26, 2009

  • 181 Answers

SOURCE: rear brake lights and rear turn signal lights not

R/S IP panel if not it I would be happy to help.

Posted on Feb 10, 2010

Testimonial: "thanks mastech01 u were right on for buick regal 03 rear lights.greatly appreciated"

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Head 25A- headlights IG 2 30A- Ignition switch IG coil 15A -Ignition coil, condenser,generator IC regulator, diagnostic connector. O2 down 10A- Rear O2 sensor O2 up 10A- Front O2 sensor Fuel pump 10A -Fuel pump unit Injector 10A -Fuel injector ,camshaft positioning sensor, purge solenoid valve, EVAP, IAC actuator, Mass Airflow sensor, EGR stepper motor. fuel pump relay coil, vehicle speed sensor. A/Con 10A - A/C compressor controls, cooling fan BTN 30A- Brake light , high mounted stop light. Tail light LH 10A- License plate light, tail light , rear combo light, instrument panel illumination Tail light RH 10A-License plate light, tail light , rear combo light, instrument panel illumination Head low 15A- Headlight Head Hi 15A-Headlight Horn 15A- Horn jlmacman.png jlmacman_0.png

Inside kick panel jlmacman_1.png

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