GM Cutlass RWD 1970-1987 Repair Guide

Signal and Marker Lights

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REMOVAL & INSTALLATION



See Figures 1, 2 and 3

Front Turn Signal & Parking Lights
  1. To replace the bulb's, reach up and in behind the bumper then twist the lamp socket counterclockwise until it can be pulled backward and out.
  2.  
  3. Lightly depress the lamp and turn it counterclockwise to release it.
  4.  
  5. Install in the reverse of removal.
  6.  



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Fig. Fig. 1: Reach in and remove the protective cover



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Fig. Fig. 2: Twist the lamp socket counterclockwise until it can be pulled backward and out



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Fig. Fig. 3: Lightly depress the lamp and turn it counterclockwise to release it

If the entire housing must be replaced:

  1. Remove the lamp sockets as described above. Loosen the three screws securing the lamp housing to the bumper and remove it.
  2.  
  3. Remove the three J-nuts from the old housing and install them onto the new one.
  4.  
  5. Install the new housing in the reverse of removal.
  6.  

Side Marker Lights

See Figures 4 and 5

  1. To replace the bulb, reach up behind the housing and twist the lamp socket counterclockwise until it can be pulled away from the housing and out.
  2.  
  3. Depress the lamp slightly and turn it counterclockwise to release it. Install in reverse order.
  4.  



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Fig. Fig. 4: Reach up behind the housing and twist the lamp socket until it can be pulled away from the housing and out



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Fig. Fig. 5: Slightly depress the lamp and turn it counterclockwise to release it

If the entire housing must be replaced:

  1. On some models it may be necessary to remove the headlight bezel.
  2.  
  3. Remove the two fasteners that retain the marker light housing.
  4.  
  5. Reverse the procedure for installation.
  6.  

Rear Turn Signal Brake and Parking Lights

See Figures 6, 7 and 8

A few lenses are attached with screws that are accessible from the rear. To remove these, simply remove the screws and remove the lens.

Once the lens is removed, the bulb can be replaced simply by depressing it, turning it counterclockwise, and removing it. Install in reverse order.

On some vehicles, open the trunk lid turn the socket and remove the bulb, reverse to install.

Most rear lenses are fastened in place from inside the luggage compartment. A stud is attached to the lens and passes through the sheet metal at the rear of the body. In some cases, the rear inner wheelhouse panel has to be removed. Remove the attaching nuts from inside the luggage compartment and pull this type of lens off.

Center High-Mount Brake Light
  1. Remove the two screws, one on each lamp base, and slide the assembly rearward.
  2.  
  3. Disengage the electrical connector and remove the assembly.
  4.  
  5. Remove the two screws on the outside edges of the assembly.
  6.  
  7. Separate and remove the bulb.
  8.  
  9. Installation is the reverse of removal.
  10.  

Dome Light
  1. Unscrew the dome light cover by hand.
  2.  
  3. Remove the bulb.
  4.  
  5. Installation is the reverse of removal.
  6.  

Passenger Area Lamps

To replace the courtesy and glove box lamps, simply remove the bulb through the access hole. To replace the ashtray lamp, it is necessary to remove the ashtray and the ashtray retainer first.

License Plate Lights

See Figures 9, 10 and 11

  1. Remove the lamp attaching bolts or screws.
  2.  
  3. Remove the lamp socket then remove the bulb.
  4.  
  5. Installation is the reverse of removal.
  6.  



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Fig. Fig. 6: Remove the light bezel fasteners and remove the bezel



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Fig. Fig. 7: Remove the light lens



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Fig. Fig. 8: Twist the lamp counterclockwise to remove



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Fig. Fig. 9: Remove the socket attaching fasteners. Soaking fasteners with penetrating oil will make removal easier



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Fig. Fig. 10: Remove the socket from the lens



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Fig. Fig. 11: This spade type of bulb can be removed by simply pulling it out of the socket

 
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