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Chevrolet Tahoe Headlight Bulbs Replacement Guide
How to change the low beam, high beam, turn signal, DRL or side marker bulbs in a 2000-2006 GM Chevy Tahoe.

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2006 Tahoe Headlight
Top of Headlight
Metal "L" Bar

This automotive maintenance tutorial was specifically written to assist owners of the second generation (2000, 2001, 2002, 2003, 2004, 2005 & 2006) GM Chevrolet Tahoe SUV in changing a burnt out low beam, high beam, front turn signal, DRL (daytime running lamp) or side marker light bulb in the headlight housings.

Owners of other General Motors GMT800 series SUV or truck vehicles such as the Chevy Silverado, Suburban, Avalanche, GMC Yukon, Sierra, Hummer H2 and the Cadillac Escalade may also find these DIY instructions to be helpful.

Replacement bulbs with their part numbers are as follows: Low Beam # 9006, High # 9005, Turn Signal # 3157A (also 3157NA or 4157NA), DRL 4114K and Front Side Marker # 194.

No tools are needed to change any of the bulbs in either the driver or passenger side headlight assembly.

Rotate Bar Forward
Released From Bracket
Lift Out Metal Bar
The first step is to open the hood.

Then locate the two metal "L" shaped bars that secure the upper headlight housing to the vehicle.

Pop the top part of the "L" bars out of their sockets and swing them forward towards yourself.

Lift the two metal bars straight out of their holes and set them aside in a safe place.

Pulling Out 2nd Bar
Pull Headlight Housing
Turn Over Access Bulbs
Carefully pull the upper part of the headlight housing out of the front of the vehicle.

Turn over the upper part of the housing and rest it on the lower part of the light housing to access the bulbs.

The Low Beam bulb is located near the outer edge of the housing.

Base Low Beam Bulb
1/4 Turn CC
Pry Up Retaining Clip
Rotate the base of the old low beam bulb 1/4 turn counterclockwise and pull it straight out of the housing.

If you have trouble removing the electrical connector, use a flathead screwdriver to gently pry up the retaining clip.

Electrical Plug Removed
Old Low Beam Bulb
Sylvania 9006
Pull the power plug straight off the base of the old bulb.
Insert New 9006 Bulb
1/4 Turn Clockwise - Lock
Push On Power Plug
Avoid touching the glass part of the new halogen bulb with your fingers or anything greasy in the engine bay.

If you do get the new bulb dirty, wipe it clean with an alcohol moistened paper towel.

Insert a new # 9006 bulb in to the housing and rotate it 1/4 turn clockwise to secure it in place.

Push the electrical connector straight on to the base of the new bulb until the retaining clip clicks in place.

Base of Old High Beam
1/4 Turn CC
Disconnect Power Plug
The High Beam bulb is located near the inner edge of the upper headlight housing.

Rotate the base of the old bulb 1/4 turn counterclockwise and pull it straight out of the housing.

Gently pull up on the retaining clip before sliding the power connector straight off the base of the old bulb.


9005 12V 65W Bulb
Insert New High Beam
1/4 Turn Clockwise Lock
Insert a new # 9005 bulb in to the housing and rotate it 1/4 turn clockwise to secure it in place.

Push the power plug straight on to the base of the new bulb.

Push On Power Plug
DRL - Lower Housing
DRL Bulb Socket
The DRL (daytime running light) bulb is located at the inner edge of the lower housing.

The base of the bulb socket is secured in place by a plastic retaining tab.

Tab Locked Against Post
Push In Tab To Release
1/4 Turn CC
Gently push in the retaining tab until it is clear of the plastic peg.

Rotate the socket 1/4 turn counterclockwise and pull it straight out of the housing.

Be careful when you remove the old DRL bulb. The old bulb shattered as I was attempting to remove it from the socket and I cut my thumb. I would recommend wearing gloves or using a pair of needle nose pliers to carefully pull it out at the base.

Insert a new 4114K (or a 3157) light bulb straight in to the socket.

Re-insert the socket in to the housing and rotate it 1/4 turn clockwise to secure it in place.

Turn Signal Bulb
Push In Tab - 1/4 Turn CC
Pull Out Old Turn Signal
The Front Turn Signal bulb is located at the center of the lower housing.

Push in the retaining tab until it is clear of the plastic peg.

Rotate the socket 1/4 turn counterclockwise and pull it straight out of the housing.

Old # 3157A Bulb
1/4 Turn Clockwise - Lock
Replace Headlight
Pull out the old bulb and push in a new amber colored # 3157A (also 3157NA or 4157NA).

Re-insert the socket in to the housing and rotate it 1/4 turn clockwise to secure it in place.

The Front Side Marker bulb is located at the outer edge of the lower housing.

Rotate the small bulb socket 1/4 turn in the counterclockwise direction.

Pull the old light bulb straight out of the socket. Push in a new number 194 light bulb straight into the socket.

If you would like to have brighter side marker lights, install some compatible replacement 194 LED bulbs.

Position In Place
Re-Insert Metal Bar
Pop Bar In To Socket
Line up the upper headlight housing and slide it back in to place.

Align the holes in the mounting bracket with the holes in the upper headlight housing.

Secure 2nd Metal Bar
Test New Low Beam
Testing High Beam Bulb
Slide in the two "L" shaped metal bars, rotate the top of the bars towards the back of the car and pop them in to their sockets.

Test the new bulbs by turning on the headlights, activating the hazard signals and flashing the high beams.

For more, check out my other 2000-2006 GM Chevrolet Tahoe DIY Repair & Maintenance Guides.

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