Owners of other Toyota, Lexus and Scion vehicles such as the 4Runner, Avalon, 86, C-HR, Camry, Corolla, iM, Land Cruiser, Mirai, Prius, RAV4, Sequoia, Sienna, Tacoma, Tundra, Yaris, FR-S, xB,  xD, tC, xA, CT 200h, ES 250, ES 300, ES 330, ES 350, IS 250, IS 350, RX 300, GS 250, NX 300 and RX 350.

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

No tools are needed to access and replace the low beam or high beam bulbs. To change the front turn signal or side marker, you'll need a small flathead screwdriver or a small plastic pry bar tool.

The low beam light is located near the middle of the headlight assembly. The lens resembles a "robot eye", in my opinion.

Reach in behind the headlight housing and locate the round grey plastic dust cap.

Rotate the dust cover 1/4 turn in the counterclockwise direction before pulling it straight out of the housing.

Set the dust cap aside in a safe place.

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

Slide the power plug straight off the base of the old low beam bulb.

Try to avoid touching the glass part of the new halogen light bulb with your fingers or anything greasy in the engine bay.

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

Push the electrical connector straight on to the base of a new number H11 until it clicks securely into place.

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

Push in the release tab on the black plastic electrical connector before sliding it straight off the base of the old high beam light bulb.

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

The front turn signal and side marker light bulbs are located near the outer corner of the headlight housing.

In order to access the two bulb sockets, you will need to remove the black plastic cover located on top of the rear corner of the headlight housing.

There are two round black plastic pop rivet fasteners that secure the cover in place.

Then carefully pry out the base of the fastener.

Lift the black plastic cover off the rear outer corner of the headlight housing.

Rotate the turn signal bulb socket 1/4 turn in the counterclockwise direction before pulling it straight out of the housing.

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

Push a new amber colored part number 7444NA light bulb straight into the socket.

The side marker bulb socket is located closer to the outer edge of the housing.

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

Push a new number 2825 (also known as W5W) 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.

Lower the black plastic cover back into place.

Re-insert the two pop rivets to secure the cover into place.

Be sure to record the bulb change in your vehicle's service records.

Please check out all of my 2014-2018 Toyota Highlander DIY Repair & Maintenance Guides.