GM Bonneville/Eighty Eight/LeSabre 1986-1999

Signal and Marker Lights

Print

REMOVAL & INSTALLATION



The replacement of all the light bulbs is straightforward. First look for the easiest way to access the connector. If you can reach under the car to the connector with your hand, then you won't need to remove the lens assembly. If there is no way to reach the bulb or the connector, you must check for an access cover or see if the lens cover has screws. If the lens is secured by screws, removing the lens would be best access to the bulb. If the lens has no screws showing on the outside of the vehicle, then access is from the back side. Once you have access to the bulb, simply grasp the connector and turn counterclockwise to align the slots, then remove the bulb from the lens housing.

Front Turn Signal and Parking Lights

See Figures 1, 2, 3 and 4

  1. Depending on the vehicle and bulb application, either unscrew and remove the lens, or disengage the bulb and socket assembly from the rear of the lens housing.
  2.  



Click image to see an enlarged view

Fig. Fig. 1: The front turn signal/parking light bulb can usually be accessed from behind



Click image to see an enlarged view

Fig. Fig. 2: Depress and twist this type of bulb counterclockwise, then pull the bulb straight from its socket

  1. To remove a light bulb with retaining pins from its socket, grasp the bulb, then gently depress and twist it 1 / 8 turn counterclockwise, and pull it from the socket.
  2.  



Click image to see an enlarged view

Fig. Fig. 3: For the turn signal/parking light bulb, carefully push the bulb in and turn it counterclockwise in order to unlock it ...



Click image to see an enlarged view

Fig. Fig. 4: ... then carefully remove the bulb from the socket

To install:
  1. Before installing a light bulb into the socket, ensure that all electrical contact surfaces are free of corrosion or dirt.
  2.  

Before installing the light bulb, note the positions of the two retaining pins on the bulb. They will likely be at different heights on the bulb, to ensure that the bulb is installed correctly. If, when installing the bulb, it does not turn easily, do not force it. Remove the bulb and rotate it 180 degrees from its former position, then reinsert it into the bulb socket.

  1. Insert the light bulb into the socket and, while depressing the bulb, twist it 1 / 8 turn clockwise until the two pins on the light bulb are properly engaged in the socket.
  2.  
  3. To ensure that the replacement bulb functions properly, activate the applicable switch to illuminate the bulb which was just replaced. If the replacement light bulb does not illuminate, either it too is faulty or there is a problem in the bulb circuit or switch. Correct if necessary.
  4.  
  5. If applicable, install the socket and bulb assembly into the rear of the lens housing; otherwise, install the lens over the bulb.
  6.  

Side Marker Light

See Figures 5, 6 and 7

  1. Disengage the bulb and socket assembly from the lens housing.
  2.  



Click image to see an enlarged view

Fig. Fig. 5: The driver's side marker light can be accessed through the engine compartment. On the passenger's side (shown), you may have to reach under the vehicle

  1. Gently grasp the light bulb and pull it straight out of the socket.
  2.  



Click image to see an enlarged view

Fig. Fig. 6: Twist the light bulb and socket to unlock it, remove the assembly and pull the bulb from the socket



Click image to see an enlarged view

Fig. Fig. 7: Simply pull this side marker light bulb straight from its socket

To install:
  1. Before installing the light bulb into the socket, ensure that all electrical contact surfaces are free of corrosion or dirt.
  2.  
  3. Line up the base of the light bulb with the socket, then insert the light bulb into the socket until it is fully seated.
  4.  
  5. To ensure that the replacement bulb functions properly, activate the applicable switch to illuminate the bulb which was just replaced. If the replacement light bulb does not illuminate, either it too is faulty or there is a problem in the bulb circuit or switch. Correct as necessary.
  6.  
  7. Install the socket and bulb assembly into the lens housing.
  8.  

Rear Turn Signal, Brake and Parking Lights

See Figures 8 through 12

  1. Most rear lamps can be accessed from inside the trunk. Open trunk and look for access past the carpet.
  2.  
  3. By pulling back the carpet or removing the large plastic carpet retaining nuts, you can see the back of the light assembly.
  4.  



Click image to see an enlarged view

Fig. Fig. 8: Once the carpet is pulled down, you can see the retaining wingnuts which must be removed to access the rear bulbs

  1. If you can reach the bulb from inside the trunk, you don't need to remove the lens assembly to replace the bulbs. But, if you can't reach the bulb and connector assembly, you may need to remove the lens assembly.
  2.  
  3. If necessary, remove the tail light panel screws and the lens assembly.
  4.  



Click image to see an enlarged view

Fig. Fig. 9: Carefully pull the rear light assembly away from the vehicle for access to the bulbs

  1. You can now simply turn the bulb connector assembly counterclockwise and remove it from the lens housing.
  2.  



Click image to see an enlarged view

Fig. Fig. 10: Depress the bulb and socket retaining tabs, turn the socket ...



Click image to see an enlarged view

Fig. Fig. 11: ... then pull the bulb and socket from the rear of the lens



Click image to see an enlarged view

Fig. Fig. 12: Carefully press the bulb in and twist it approximately 1/8 turn counterclockwise to remove it from the socket

To remove the bulb, turn the twist lock socket (at the rear of the housing) counterclockwise1/4turn, then remove the socket with the bulb; replace the bulb if defective.

To install:
  1. Install the bulb in the socket.
  2.  
  3. Check that the connector is properly connected to the bulb and try the lights. Don't assemble everything until you are certain the bulb works. If the bulb doesn't work, check the grounds and use a 12 volt test light to make certain you have power to the bulb.
  4.  
  5. When you're sure the lights work, install the bulb into the lens housing.
  6.  
  7. If removed, install the lens housing and carpeting.
  8.  

Rear Side Marker Light Bulb

See Figures 13, 14, 15 and 16

  1. If equipped, remove the side marker lens assembly retaining screws. The lens may be secured with Torx® screws, depending upon the year of your vehicle.
  2.  



Click image to see an enlarged view

Fig. Fig. 13: Use a Torx® driver to unfasten the rear side marker lens retaining screws

  1. If there are no lens retaining screws, use a flat-bladed tool wrapped in cloth to carefully pry the lens off, to access the bulbs.
  2.  

  1. Pull the lamp assembly away from the side of the vehicle to access the light bulb and connector.
  2.  



Click image to see an enlarged view

Fig. Fig. 14: Pull the lamp assembly out in order to access the bulb and connector

  1. Turn the bulb and socket to disengage the lens retainers, then remove the bulb and socket from the lamp.
  2.  



Click image to see an enlarged view

Fig. Fig. 15: The pins (1) have to be disengaged from the lens retainers (2) in order to remove the bulb and socket assembly

  1. Pull the bulb straight out of the socket and replace if necessary.
  2.  



Click image to see an enlarged view

Fig. Fig. 16: Remove the bulb by pulling it straight out of the socket

  1. Installation is the reverse of the removal procedure.
  2.  

High-Mount Brake Light

See Figures 17, 18 and 19

Depending upon the vehicle, the center high-mount brake light may be accessed from outside the vehicle, through the trunk, or through the passenger compartment.

  1. Remove the center high-mount bracket light lens retaining screws.
  2.  



Click image to see an enlarged view

Fig. Fig. 17: Use a screwdriver to unfasten the center high-mount lens retaining screws ...

  1. Remove the lens in order to get to the bulbs.
  2.  



Click image to see an enlarged view

Fig. Fig. 18: ... then remove the lens for access to the bulbs

  1. Carefully pull the bulb away from its retaining clip contacts.
  2.  



Click image to see an enlarged view

Fig. Fig. 19: Pull the light bulb from the retaining clips

  1. Installation is the reverse of the removal procedure. Before installing the lens, make sure the brake light operates properly by having an assistant depress the brake pedal.
  2.  

License Plate Lights

See Figures 20, 21 and 22

  1. Remove the license plate light retaining screws.
  2.  



Click image to see an enlarged view

Fig. Fig. 20: Unfasten the license plate light retaining screws

  1. Carefully lower the license plate light assembly. Disengage the bulb and socket from the lens.
  2.  



Click image to see an enlarged view

Fig. Fig. 21: Lower the assembly, then twist and unlock the bulb and socket from the lens

  1. Carefully pull the bulb straight out of the socket.
  2.  



Click image to see an enlarged view

Fig. Fig. 22: Remove the bulb by pulling it straight out of the socket

  1. Installation is the reverse of the removal procedure. Before raising the assembly into position, turn on the headlights, and check that the license plate bulb(s) illuminate.
  2.  

Trunk Lights

See Figure 23

The trunk, or cargo area, bulb is replaced simply by pulling it straight out of the socket.



Click image to see an enlarged view

Fig. Fig. 23: To remove the trunk light, depress the bulb, rotate it 1/8 turn, then remove it from the socket

 
label.common.footer.alt.autozoneLogo