Owners of other General Motors vehicles from Chevrolet, GMC, Cadillac, Buick and Holden such as the Trax, Equinox, Traverse, Blazer, Tahoe, Suburban, Sonic, Cruze, Trailblazer, Spark, Malibu, Impala, Volt, Bolt, Corvette, Camaro, Silverado, Express, Regal, LaCrosse, Cascada, Encore, Enclave, Envision, Canyon, Sierra, Terrain, Acadia, Yukon, XT4, XT5, XT6, Escalade, CT5, CTS, XTS, CT6, ATS, Astra and Commodore may also find these DIY instructions to be helpful.

The compatible replacement light bulb parts numbers are as follows: Low Beam # H11, High Beam # 9005, Front Turn Signal # 7444NA and Side Marker # 2825 (or W5W).

No tools are required to change any of the light bulbs in the driver side housing.

To access the light bulbs in the passenger side headlight housing, you'll need a flat head screwdriver and possibly also a pop rivet removal tool.

The first two steps are to open the hood and then move to the side of the truck with the burnt out bulb.

This guide will start with the driver side headlight housing. For the steps needed to remove the plastic cover in order to access the bulbs in the passenger side housing, skip down to near the bottom of the page.

The low beam light bulb is situated near the outer area of the housing.

Reach in behind the headlight housing and twist off the black plastic dust cap 1/4 turn in the counterclockwise direction.

Rotate the base of the old low beam bulb 1/4 turn in the counterclockwise direction before pulling it straight out of the housing.

The OEM (original equipment manufacturer) light bulb was an Osram H11 12V 55W.

If you do get the new bulb dirty, wipe it clean with a paper towel and some rubbing alcohol.

Insert a new number H11 halogen low beam light bulb into the housing and rotate it 1/4 turn in the clockwise direction to secure it into place.

If you would like to have brighter low beam lights, install some compatible replacement H11 LED bulbs.

You should hear or feel the power plug "click" securely into place.

Replace the dust cap by twisting it on 1/4 turn in the clockwise direction.

(If you need to change the front side marker light bulb, leave the dust cap off the back of the low beam housing for easier access.)

The high beam light bulb is situated near the top inner corner of the headlight housing.

Reach in behind the housing and twist off the round black plastic dust cap 1/4 turn in the counterclockwise direction.

Gently pry back the two tabs on the retaining clip before pulling the electrical connector straight off the base of the old high beam light bulb.

The OEM high beam light bulb in this 2019 Colorado LT was a Sylvania 9005 12V 60W.

If you do get the new bulb dirty, wipe it clean with a paper towel and some rubbing alcohol.

Grease or oil on the new bulb can cause hot spots which may lead the bulb failing prematurely.

Install the new number 9005 high beam light bulb into the housing and rotate it 1/4 turn in the clockwise direction to secure it into place.

If you would like to have brighter high beams that will also last a log longer before burning out, install some compatible replacement 9005 LED bulbs.

Push the power plug straight on to the base of the new high beam bulb until it clicks securely into place.

Rotate the grey and black plastic bulb socket 1/4 turn in the counterclockwise direction before pulling it straight out of the housing.

Gently pull the old light bulb straight out of the socket.

If you have trouble removing the old bulb due to rust or debris, try carefully wiggling it back and forth while pulling it straight out.

Avoid using excessive pressure on the old bulb to prevent from having it break and cut your fingers.

If you would like to have brighter front turn signal lights, install some compatible replacement 744NA LED bulbs.

Re-insert the front turn signal bulb socket into the housing and rotate it 1/4 turn in the clockwise direction to secure it into place.

Reach in behind the housing past the low beam and towards the front quarter panel.

If you have trouble reaching the front side marker bulb socket, remove the round black plastic dust cap on the back of the low beam bulb housing.

Rotate the long black plastic tab on the end of the side marker bulb socket 1/4 turn in the counterclockwise direction before pulling it straight out of the housing.

Push a new number 2825 miniature wedge base light bulb straight into the socket.

If you would like to have brighter side marker lights, install some compatible replacement 2825 LED bulbs.

Re-insert the side marker bulb socket into the housing and rotate it 1/4 turn in the clockwise direction to secure it into place.

To replace any of the bulbs in the passenger side headlight housing, follow the steps below.

Use a pop rivet removal tool to pry off the fastener that secures the hose to the top of the engine bay.

Use a flat head screwdriver to gently pry out the smaller round center of the fasteners to remove the locking pins.

Then pry out the base of the fastener.

Gently pull back the plastic trim cover to access the bulb sockets in the passenger side headlight housing.

Follow the previous steps to replace any of the bulbs.

Re-attach the pop rivet to secure the coolant hose back into place.

To test the new light bulbs, turn on the headlights, activate the hazard lights and flash the high beams.

Don't forget to write down the bulb change in your truck's service records.

Please check out all of my 2015-2019 GM Chevrolet Colorado DIY Repair & Maintenance Guides.