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Changing Rear Brake Turn Tail Park Running Light Bulbs (Post 7 of 27)

The tail lights have the main running lights, park, stop & turn signals.

The rear tail light section contains a total of 4 lights within the red lens portion (on each side).
There’s 2 small bulbs, and 2 big bulbs.

THIS post is all about the big bulbs.
(post #9 will show you the small running lights)

The 2 big bulbs, within the drivers side housing:
2nd from left & the far right one (which is the very inner light, next to the backup light).
The passenger side lights being the very inner one on far left & 2nd from right.
These lights stay constantly lit, but also get brighter when the brakes are applied, as well as blink when the turn signals are utilized.

The OEM stock lights are all white bulbs.

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The socket itself is: Standard Motor Products S-502 (GM 90 Degree 3-Wire Stop, Tail, Turn Signal Lamp Socket)
[replacement sockets may have different colored wires, and will not be the molded off-white color found on a stock harness]

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SPECS:

OEM BULB NUMBER: 2057

SOCKET COLOR: yellow

NUMBER OF WIRES ATTACHED: 3

WIRE COLOR & PURPOSE:

LH (driver side) (outer light)
CONNECTOR 1: yellow wire in from LH (inner) light.
CONNECTOR 2: brown wire, power in from junction (from light switch)
CONNECTOR 3: black out to ground.

LH (driver side) (inner light)
CONNECTOR 1: yellow wire in from turn signal switch, WHICH ALSO connects to yellow wire that runs to LH (outer) light.
CONNECTOR 2: brown wire, power in from junction (from light switch)
CONNECTOR 3: black out to ground.

RH (passenger side) (outer light)
CONNECTOR 1: dark green in from RH (inner) light.
CONNECTOR 2: brown wire, power in from junction (from light switch)
CONNECTOR 3: black out to ground.

RH (passenger side) (inner light)
CONNECTOR 1: dark green in from turn signal switch, WHICH ALSO connects to dark green wire that runs to LH (outer) light.
CONNECTOR 2: brown wire, power in from junction (from light switch)
CONNECTOR 3: black out to ground.

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rear brake turn lights wiring diagram

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HOW TO CHANGE BULB:

Remove the 4 thumbscrew nuts (per side) to remove the taillight housings.
An 11 mm socket will take off these nuts if you don’t want to use your hands.
Pull the housing away from the body.
To remove the big bulbs, push the tab in on the socket, twist the plug out, twist the bulb out.
Replace bulb.

Reinstall reversing the order.

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BEFORE WORK STARTS:

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REMOVING THE HOUSINGS:

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REMOVING THE SOCKETS:

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driver side outer tail light socket

driver side inner tail light socket

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bulbs replaced & tail lights on!

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This is part of an ongoing series about the details & specifics on Changing Light Bulbs in your Buick Turbo Regal:

1) Overview
2) Head Lights
3) Bumper Lights (running lights, turn signals)
4) Front Corner Side Marker Lights
5) 5) Front Lower Cornering Lamps (Limited models)
6) Under Hood Light
7) Brake & Turn Tail Lights (THIS page)
8) Backup Lights (reverse light)
9) Rear Running Tail Lights (center & side corner marker lights)
10) License Plate Light
11) Trunk Light
12) Under Dash / Courtesy Lights (driver / passenger side)
13) Glovebox Light
14) Dash plaque (usually on Limited models)
15) Dash Gauges / Side Warning Lights (analog & digital dash)
16) HVAC Light (heater / AC)
17) Console Shifter Indicator Light
18) Ashtray Light on Non-Console Cars
19) radio light bulbs
20) Rear Window Defogger Button Light
21) Rear View Mirror Map Lights (upgraded option, not standard on Regals)
22) Passenger Visor Vanity Mirror Light
23) Dome Light (t-top & hardtop; factory & upgraded hardtop versions)
24) CHMSL (Center High Mounted Stop Light, AKA Third Brake Light)
25) Lower Door Panel Courtesy Lights (Limited models)
26) Aftermarket Dash / Other Extra Add-on Gauge Lights (a-pillar, console under radio, etc)
27) Opera / Coach Lights (Limited models)

You can click any link above and be taken to the light of your choice.

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