MonteCarlo 2000

Exterior Lighting

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Fog & Driving Lights



Specific to:

Buick Century 1997-2000

Buick Regal 1997-2000

Chevrolet Lumina 1997-2000

Chevrolet Monte Carlo 1997-2000

Oldsmobile Cutlass Supreme 1997

Oldsmobile Intrigue 1998-2000

Pontiac Grand Prix 1997-2000

The fog lamps are operated by a separate instrument panel mounted switch. The fog lamps will go off whenever the high-beam headlamps are turned on and when you return to low beam headlamps, the fog lamps will come on again. Most installation have provision for vertical (not horizontal) aim by an adjusting nut located on the rear of the fog lamp.

Installing Aftermarket Auxiliary Lights

Specific to:

Buick Century 1997-2000

Buick Regal 1997-2000

Chevrolet Lumina 1997-2000

Chevrolet Monte Carlo 1997-2000

Oldsmobile Cutlass Supreme 1997

Oldsmobile Intrigue 1998-2000

Pontiac Grand Prix 1997-2000

GM states "Don't add anything electrical to your (vehicle) unless you check with your dealer first. Some electrical equipment can damage your vehicle and the damage won't be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should."

Because of the extensive computer control of your W-Body vehicle, just "tapping in" to an electrical circuit could produce unforeseen problems, not the least of which is corrosion from where the wiring insulation has been compromised. Always consult with your dealer before adding any aftermarket equipment on your vehicle.

Removal & Installation

Specific to:

Buick Century 1997-2000

Buick Regal 1997-2000

Chevrolet Lumina 1997-2000

Chevrolet Monte Carlo 1997-2000

Oldsmobile Cutlass Supreme 1997

Oldsmobile Intrigue 1998-2000

Pontiac Grand Prix 1997-2000



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Fig. Fog lamps are mounted under the bumper either in pockets in the bumper or on small brackets-Pontiac shown



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Fig. These fog lamps are mounted under the bumper on small brackets-Buick shown

  1. Detach the electrical connector from the rear of the lamp.
  2.  
  3. Remove the lamp mounting nuts.
  4.  
  5. Installation is the reverse of the removal process.
  6.  

Front Turn Signal & Parking Lights



Removal & Installation

The front parking/turn signal lamps are located in the left and right side composite headlamp housings (GM also calls them headlamp capsules). The parking lamps can be operated any time using the headlamp switch. When a turn is signaled, the appropriate front parking lamp switches to signal a turn. The turn signals operate only with the ignition switch in the RUN position and will not operate during hazard flasher operation.

Look the job over carefully. On some vehicles, the parking and turn signal lamp bulbs can be replaced by simply twisting the socket free and replacing the bulb. On other vehicles, the lamp assembly must be removed.

  1. Open the hood.
  2.  
  3. If the parking/turn signal bulb can be accessed, twist the socket to free it from the lamp assembly and withdraw the socket and bulb assembly.
  4.  
  5. If the parking/turn signal bulb cannot be accessed, remove the lamp assembly. Twist the socket to free the locking tabs and withdraw the socket and bulb assembly. Some applications may use a locking tab that needs to be depressed so the socket can be rotated.
  6.  



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Fig. This parking lamp/turn signal socket has a locking tab that needs to be depressed to rotate the socket



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Fig. Depress the locking tab with your thumb, then rotate the socket to remove



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Fig. With the socket free, the bulb can be replaced



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Fig. Carefully push in the bulb and turn it counterclockwise to unlock it

Headlights



Aiming

The headlamps must be properly aimed to provide the best, safest road illumination. The lights should be checked for proper aim and adjusted as necessary. Certain state and local authorities have requirements for headlamp aiming; these should be checked before adjustment is made.


CAUTION
About once a year, when the headlamps are replaced or any time front end work is performed on your vehicle, the headlamp should be accurately aimed by a reputable repair shop using the proper equipment. Headlamps not properly aimed can make it virtually impossible to see and may blind other drivers on the road, possibly causing an accident. Note that the following procedure is a temporary fix, until you can take your vehicle to a repair shop for a proper adjustment.

Headlamp adjustment may be temporarily made using a wall, as described below, or on the rear of another vehicle. When adjusted, the lights should not glare in oncoming car or truck windshields, nor should they illuminate the passenger compartment of vehicles driving in front of you. These adjustments are rough and should always be fine-tuned by a repair shop which is equipped with headlamp aiming tools. Improper adjustments may be both dangerous and illegal.



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Fig. Typical composite headlamp aiming rods



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Fig. Typical horizontal and vertical adjuster locations



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Fig. Vehicle headlamp aiming device (RH)-Buick shown, others similar

Before removing the headlamp bulb or disturbing the headlamp in any way, note the current settings in order to ease headlamp adjustment upon reassembly. If the high or low beam setting of the old lamp still works, this can be done using the wall of a garage or a building:

  1. Park the vehicle on a level surface, with the fuel tank about 1 / 2 full and with the vehicle empty of all extra cargo (unless normally carried). The vehicle should be facing a wall which is no less than 6 feet (1.8m) high and 12 feet (3.7m) wide. The front of the vehicle should be about 25 feet from the wall.
  2.  
  3. If neither beam on one side is working, and if another like-sized vehicle is available, park the second one in the exact spot where the vehicle was and mark the beams using the same-side light. Then switch the vehicles so the one to be aimed is back in the original spot. It must be parked no closer to or farther away from the wall than the second vehicle.
  4.  
  5. Perform any necessary repairs, but make sure the vehicle is not moved, or is returned to the exact spot from which the lights were marked. Turn the headlamps ON and adjust the beams to match the marks on the wall.
  6.  
  7. Have the headlamp adjustment checked as soon as possible by a reputable repair shop.
  8.  

Removal & Installation
Composite Headlights

Specific to:

Buick Century 1997-2000

Buick Regal 1997-2000

Chevrolet Lumina 1997-2000

Chevrolet Monte Carlo 1997-2000

Oldsmobile Cutlass Supreme 1997

Oldsmobile Intrigue 1998-2000

Pontiac Grand Prix 1997-2000

The headlamps used on the majority of vehicles covered by this manual are called "composite lamps". Unlike the glass sealed beam units used on older vehicles, these headlamps are made of special plastic using small halogen gas bulbs. The bulbs are replaceable, but they do require special handling.


CAUTION
Halogen bulbs contain a gas under pressure. Handling a bulb improperly could cause it to shatter into flying glass fragments. Always allow the bulb to cool before removal. Always use the following precautions to help avoid personal injury.



Turn the light switch OFF and allow the bulb to cool before changing bulbs. Leave the switch OFF until the bulb replacement procedure is complete.
 
Always wear eye protection when changing a halogen bulb.
 
Handle the bulb only by its base. Avoid touching the glass. Do not drop or scratch the bulb.
 
Keep the bulb away from moisture.
 
Place the used bulb in the new bulb's carton and dispose of it properly. Keep halogen bulbs out of reach of children.
 

Depending on the installation, the low-bean and the high-beam halogen bulbs may actually be removable without removing the entire composite headlamp assembly. Look your application over carefully to see there is enough room behind the headlamp to fit your hand to remove the bulb holder. Since removing the composite headlamp assembly is not difficult, the following procedure assumes that the headlamp is being removed from the vehicle for halogen bulb service.



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Fig. This Pontiac headlamp uses screws as retainers



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Fig. This Buick headlamp uses U-shaped plastic clips as retainers



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Fig. This Chevrolet uses multiple special screw type retainers, although it may be possible to remove the halogen bulbs from behind, without removing the headlamp assembly.



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Fig. This Oldsmobile headlamp uses multiple screws as retainers

  1. Raise the hood and look at the headlamp installation. On some applications, the headlamp is retained by screws and some molded tabs that slip into slots in the sheetmetal mounting bracket. On other applications, two U-shaped clips may hold the headlamp in place. Remove the headlamp retainers and gently work the headlamp free of the vehicle.
  2.  
  3. If the wiring harness is so short that it is difficult to work on the headlamp, simply unplug the electrical connector from the headlamp assembly.
  4.  
  5. The halogen bulb may have a large, knurled plastic ring that retains the socket to the headlamp. Turn this ring to detach it and remove the socket with the halogen bulb.
  6.  



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Fig. This Grand Prix uses two screws to retain the headlamp assembly



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Fig. With the two screws removed, the headlamp assembly is gently moved outboard (away from the vehicle center) to disengage the plastic tabs on the back of the lamp from their retainer slots in the sheetmetal mounting bracket



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Fig. This halogen bulb has a large, knurled plastic ring that retains the socket to the headlamp. Turn this ring to detach it



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Fig. Pull out the socket with the halogen bulb from the headlamp



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Fig. This type of halogen headlamp socket is turned to release and remove, or engage and install



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Fig. After twisting the socket free, pull the bulb and connector rearward, holding the base, NOT the glass



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Fig. Holding the bulb by the base, unplug from the connector



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Fig. Exploded view of a common headlamp bulb replacement

  1. Remove the burned-out bulb and discard safely.
  2.  


WARNING
Do not touch the glass bulb with your fingers. Oil from your fingers can severely shorted the life of the bulb. If necessary, wipe off any dirt or oil from the bulb with rubbing alcohol before completing installation.

  1. Take great care not to touch the new replacement halogen bulb as oil from your skin will burn when the bulb is turned on and may damage the glass, shortening the life of the bulb. Use a clean, dry paper towel to handle the bulb.
  2.  
  3. Installation is the reverse of the removal procedure.
  4.  
  5. Verify that the lights work correctly.
  6.  

Sealed Beam Type

Specific to:

Buick Century 1997-2000

Buick Regal 1997-2000

Chevrolet Lumina 1997-2000

Chevrolet Monte Carlo 1997-2000

Oldsmobile Cutlass Supreme 1997

Oldsmobile Intrigue 1998-2000

  1. Open the hood.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Remove the headlamp bezel retainers and bezel.
  6.  
  7. Remove the spring from the bottom edge of the headlamp assembly.
  8.  


NOTE
Do not apply pressure to the plastic bubble of the vertical aim indicator.

  1. Detach the electrical connector from the assembly.
  2.  
  3. Unfasten the two screws from the headlamp retaining ring.
  4.  
  5. Rotate the retaining ring away from the headlamp.
  6.  
  7. Remove the headlamp from the vehicle.
  8.  



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Fig. This Oldsmobile Cutlass may be equipped with sealed beam headlamps

To install:

  1. Position the headlamp and retaining ring and secure with the two retaining screws. Tighten the screws to 18 inch lbs. (2 Nm).
  2.  
  3. Attach the electrical connector to the assembly.
  4.  
  5. Install the spring to the bottom of the headlamp assembly.
  6.  
  7. Install the headlamp bezel and retainers.
  8.  
  9. Connect the negative battery and test the lights for proper operation.
  10.  

Rear Turn Signal, Brake & Parking Lights



Removal & Installation

The taillamps, stoplamps and rear turn signals lamps are all incorporated into the rear taillamps. The taillamps are lit whenever the parking lamps or headlamps are in operation. The rear turn signal lamps flash with the front turn signal lamps whenever a turn is indicated with the turn signal/headlamp dimmer switch. The stoplamps light whenever the brake pedal is depressed and the stoplamp switch is closed.



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Fig. The trim panel is likely held in place with retainers like this. Back out the screw to release tension on the pin legs and remove the fastener



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Fig. The taillamp is retained by plastic wingnuts



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Fig. Remove the plastic wing nuts from the taillamp housing



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Fig. Remove the taillamp housing from the vehicle to service the light bulbs

  1. Open the rear compartment (trunk).
  2.  
  3. If equipped, unhook the convenience net that stretches between the taillamps. It is attached to hooks molded into the plastic taillamp assembly retaining wingnuts. Loosen the rear compartment trim panel. It is retained by plastic pins with a screw in the center. Back out the screw to release any tension on the plastic pin legs, and pull the trim (thin carpet-like material) for access to the taillamps.
  4.  
  5. Remove the plastic taillamp assembly retaining wingnuts.
  6.  
  7. Remove the taillamp assembly from the vehicle and service the light bulbs as required.
  8.  
  9. Installation is the reverse of the removal process.
  10.  
  11. Test the lights for correct operation.
  12.  

Side Marker Lights



Specific to:

Buick Century 1997-2000

Buick Regal 1997-2000

Chevrolet Lumina 1997-2000

Chevrolet Monte Carlo 1997-2000

Oldsmobile Cutlass Supreme 1997

Oldsmobile Intrigue 1998-2000

Pontiac Grand Prix 1997-2000

The side marker lights are located on the sides of the headlamp assemblies. These lamps will light when the headlamp or parking lights are ON. If the headlamp or parking lamps are OFF when a turn is signaled, the appropriate side marker lamp will flash in unison with the with the front turn signal lamp. If the headlamps or parking lamps are ON when a turn is signaled, the side marker lamp and the front turn signal lamp will flash alternately.

  1. On some applications, the marker lamp bulb socket can be accessed through the engine compartment or from under the front valence panel. On other applications, the headlamp assembly should be removed for access.
  2.  



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Fig. On some applications, the side marker bulb socket can be accessed through the engine compartment or from underneath



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Fig. On this application, the side marker bulb lamp is part of the headlamp assembly



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Fig. Twist the socket to unlock it and pull the bulb from the socket

  1. The side marker lamp socket simply twists to remove.
  2.  
  3. The bulb is a baseless bulb and just pulls out of the socket.
  4.  
  5. Inspect the socket. They are often subject to road splash, dirt and corrosion. Clean as required.
  6.  
  7. Install a new bulb and reassemble in the reverse order of removal.
  8.  

 
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