GM Grand Am/Achieva/Calais/Skylark/Somerset 1985-98

Signal and Marker Lights

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REMOVAL & INSTALLATION



Front Turn Signal and Parking Lights

See Figure 1

  1. Disconnect the negative battery cable.
  2.  
  3. On early model vehicles, unfasten the retaining screws, then remove the bezel and light housing from the front fascia of the vehicle. Remove the bulb.
  4.  



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Fig. Fig. 1: On vehicles such as this 1991 Skylark, you must remove the bezel and housing to access the turn signal/parking light bulb

  1. On later model vehicles, remove the lamp assembly, unfasten the socket from the lamp housing by turning it counterclockwise, then remove the lamp from the socket by pressing in and turning counterclockwise.
  2.  

To install:
  1. Install the replacement lamp into the socket, matching the directional alignment pins on the base of the bulb with the complementary slots in the socket. This will assure that the proper filament is energized at the right time; i.e.: the turn signal filament and not the parking lamp filament is energized when the turn signal is turned on.
  2.  
  3. If you can get to the bulb from the engine compartment, push the lamp into the socket and turn clockwise. Install the socket to the lamp housing by turning clockwise.
  4.  
  5. If the bulb can't be accessed from the engine compartment, after the bulb is installed, fasten the housing and bezel to the front fascia of the vehicle.
  6.  
  7. Connect the negative battery cable.
  8.  
  9. Check operation of the parking lamp and turn signal.
  10.  

Front Side Marker Lights

See Figures 2, 3 and 4

  1. Disconnect the negative battery cable.
  2.  
  3. Unfasten the side marker housing attaching screws.
  4.  



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Fig. Fig. 2: Remove these two bolts to aid extraction of the parking lamp

  1. Lower the housing far enough to remove the socket from the housing by turning 45° counterclockwise.
  2.  



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Fig. Fig. 3: Pull the assembly forward and out

  1. Remove the bulb and socket assembly from the housing, then detach the bulb from the socket.
  2.  

To install:
  1. Position the bulb into the socket making sure it is secure.
  2.  
  3. Install the socket to the lamp housing.
  4.  



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Fig. Fig. 4: Push in, twist and remove the bulb

  1. Secure the socket to the lamp housing by turning 45° clockwise.
  2.  
  3. Install the side marker housing, then fasten using the attaching screws.
  4.  
  5. Connect the negative battery cable.
  6.  

Rear Turn Signal, Brake, and Marker Lights

See Figures 5, 6 and 7

  1. Disconnect the negative battery cable.
  2.  
  3. Open the trunk.
  4.  
  5. Unfasten the nuts or other retainers from the rear trim.
  6.  
  7. Unfasten or release the housing cover retainers.
  8.  
  9. On some vehicles, you may have to remove the rear fascia/body panel and light assembly to get to the sockets.
  10.  



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Fig. Fig. 5: On some vehicles, such as this 1986 Grand Am, you must remove the rear body panel with the lamp

  1. Depending upon vehicle application, remove the lamp socket either by rotating it counterclockwise (approximately 1 /4 turn) until the plastic tabs disengage, or by squeezing the metal tangs while pulling the socket from the light assembly.
  2.  



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Fig. Fig. 6: Remove the lamp socket assembly by turning it counterclockwise, then pulling it out

Generally, side marker lamps use small bulbs with flat, blade-type bases, and tail lights/turn signals use larger, round-based ("bayonet") bulbs.

  1. Remove the bulb from the socket using the appropriate method. Bulbs with blade-type bases pull straight out, while those with round bases and protruding pins (bayonet-type bulbs) must be depressed, then rotated counterclockwise (approximately 1 /8 turn) before pulling out.
  2.  



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Fig. Fig. 7: Remove the side marker bulb from its socket by pulling straight out

To install:
  1. Secure the bulb in the socket using the appropriate method. Bulbs with blade-type bases push straight in, while those with round bases and protruding pins (bayonet-type bulbs) must be inserted, then depressed and rotated clockwise (approximately 1 /8 turn).
  2.  
  3. Install the lamp socket using the appropriate method. Depending on the type of socket, either engage the plastic tabs, and rotate the socket clockwise (approximately 1 /4 turn), or push on the socket until the metal tangs engage.
  4.  
  5. Install the housing cover nuts.
  6.  
  7. If removed, install the rear fascia and light assembly.
  8.  
  9. Install the rear trim.
  10.  
  11. Connect the negative battery cable, then check the operation of the rear lights.
  12.  

High-Mount Brake Light
1986-91 VEHICLES WITHOUT LUGGAGE RACK

See Figures 8 through 12

  1. Unfasten the two lamp housing mounting screws, then remove the housing.
  2.  



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Fig. Fig. 8: Remove the two lower screws near the bottom of the lamp

  1. Detach the electrical connector.
  2.  



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Fig. Fig. 9: Detach the wiring harness from under the lamp assembly

  1. Unfasten the two cover screws remove the cover, then disconnect the bulb from the socket.
  2.  



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Fig. Fig. 10: Remove the two upper cover screws, then ...



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Fig. Fig. 11: ... pull the lamp apart ...



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Fig. Fig. 12: ... and replace the bulb if necessary

Some times when the lamp is being disassembled, the entire assembly falls apart, be aware!

To install:
  1. Position the bulb in the socket.
  2.  
  3. Install the cover and secure with the two retaining screws.
  4.  
  5. Attach the electrical connector.
  6.  
  7. Position the housing, then secure with the retaining screws.
  8.  
  9. Connect the negative battery cable, then check operation of the light.
  10.  

1985-91 VEHICLES WITH LUGGAGE RACK

See Figure 13

  1. Disconnect the negative battery cable.
  2.  
  3. Unfasten the two lens retaining screws, then remove the lens.
  4.  
  5. Remove the bulb from the socket.
  6.  



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Fig. Fig. 13: After unfastening the lens, you can remove the bulb-1985-91 vehicles with a luggage rack

To install:
  1. Install the bulb into the socket.
  2.  
  3. Install the lens, then secure with the two retaining screws.
  4.  
  5. Connect the negative battery cable, then check the operation of the light.
  6.  

1992-98 GRAND AM AND ACHIEVA

See Figure 14

  1. Disconnect the negative battery cable.
  2.  
  3. Pull the center high-mount stop lamp cover to disengage the retaining tabs.
  4.  
  5. Unfasten the lamp retaining screws.
  6.  
  7. Remove the sockets using a suitable prybar to release the retaining tabs.
  8.  
  9. Detach the bulbs from their sockets.
  10.  
  11. Using a suitable prybar to release the tabs, remove the lamp lens.
  12.  



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Fig. Fig. 14: View of the center high-mount stop lamp assembly-1995 Grand Am and Achieva shown

  1. Installation is the reverse to install. Connect the negative battery cable, then check the lamp for proper operation.
  2.  

1992-98 SKYLARK
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the rear seat cushion and seatback.
  4.  
  5. Unfasten and remove the rear quarter trim panels.
  6.  
  7. Remove the rear seat-to-back window trim panel.
  8.  
  9. Detach the electrical connector.
  10.  
  11. Lift the retainers, then slide the tabs from the slots.
  12.  
  13. Remove the lamp assembly, then detach the bulb(s).
  14.  

To install:
  1. Install the bulb(s), then insert the tabs of the lamp assembly into the slots, pushing rearward until secure against rear window.
  2.  
  3. Attach the electrical connector.
  4.  
  5. Install the rear seat-to-back window trim panel, then fasten the quarter trim panels.
  6.  
  7. Install the rear seat cushion and seatback.
  8.  
  9. Connect the negative battery cable, then check the light for proper operation.
  10.  

License Plate Lights

See Figure 15

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the screws from the lamp assembly.
  4.  
  5. Carefully, pull the assembly down.
  6.  
  7. Remove the bulb from the socket by turning counterclockwise.
  8.  



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Fig. Fig. 15: View of the license plate lights-1995 Pontiac and Buick shown

To install:
  1. Install the bulb to the socket by pressing in and turning clockwise.
  2.  
  3. Reposition the lamp assembly.
  4.  
  5. Install the mounting screws.
  6.  
  7. Connect the negative battery cable.
  8.  

Back-up Lamp

See Figures 16, 17, 18 and 19

  1. Disconnect the negative battery cable.
  2.  
  3. On some models it may be necessary to access the lamp from the inside of the trunk compartment.
  4.  
  5. Unfasten the retaining screws, then remove the lens and molding, if equipped.
  6.  



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Fig. Fig. 16: Unfasten the retaining screws, then ...



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Fig. Fig. 17: ... remove the lens assembly from the vehicle

  1. Twist and remove the bulb and socket assembly from the lens, then detach the bulb from the socket.
  2.  



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Fig. Fig. 18: Twist and remove the bulb and socket assembly from the lens, then ...



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Fig. Fig. 19: ... carefully remove the bulb from the socket

  1. Attach the bulb to the socket, then install the bulb and socket assembly into the lens. Install the remaining components in the reverse order of removal. Check operation of the lamp.
  2.  

 
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