2014–2019 Toyota Highlander
By Tom Becker ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026
Save $225 by doing it yourself! Shop cost: $500
Quick answer: Headlight Assembly Replacement on a 2014–2019 Toyota Highlander is rated Advanced and takes about 60–120 minutes. You'll need 6 tools for this job, and parts cost about $275. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name | Part Number | Price | Buy |
|---|---|---|---|
| Headlight Assembly | TRQ HLA88374 | $250.00 | |
| 10mm Bolts | — | $5.00 | |
| Headlight Bulbs | — | $20.00 |
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Follow these steps carefully
This is a full headlight assembly replacement for the 2014–2019 (third-generation) Highlander — the job you do when the lens is hazed, cracked, or leaking, not when a bulb burns out.
I confirm it's the lens that's failed before ordering the assembly — I've seen people buy a whole housing for a burned bulb, and the price difference is painful.
Open the hood. Along the top of the headlight housing you will find the upper mounting bolts — a 10mm socket takes them out. Lift the grille section on the working side just enough to free the top of the headlight.
Remove the screws along the top edge of the bumper cover, the screws hidden inside the wheel well where the liner meets the bumper, and the fasteners along the bottom.
Remove it with the 10mm socket and keep it with the top bolts. Double-check that no mounting bolts remain: the housing should now feel loose but still be held by its wiring.
Lift the old assembly straight up and out. Compare it side by side with the new unit: mounting tabs, connector shape, and lens style should all match before the new one goes in.
If your replacement housing came without bulbs, transfer them from the old unit — never touch the halogen bulbs' glass. Set the new assembly into place, start all the mounting bolts by hand to avoid cross-threading, then snug them with the 10mm socket. Reconnect the main connector until the tab clicks.
Push the bumper cover onto its clips and reinstall the screws. Switch on and verify low beam, high beam, turn signal, and daytime running light work. Check the aim at night against a wall — a misaimed beam blinds oncoming drivers; have it adjusted if the cutoff looks off.
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
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