Checking Tow Light Wiring Fuse on 2020 Toyota Highlander
Updated 06/02/2026 | Published 08/26/2020
Question:
Easy connect, good fit, but no power to the flat four. No action on voltmeter on any of the 3 circuits when vehicle lights on. Thought it was great that my 2020 Highlander had the connector behind the bumper but......
asked by: Bruce D
Expert Reply:
The most likely issue is a blown or missing fuse for the trailer lighting. Locate the fuse panel under the hood, on the driver's side, near the fender. Your Owner's Manual can additionally provide you a picture of the location and instructions for opening it. Locate position 15 in the panel and determine if the fuse is missing or blown. I have attached a picture showing the location of that fuse in the panel.
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Marlin
5/30/2025
The fuse box is not numbered as advised. The owners manual has no useful information about fuses , nor is the any tlr turn (left or right) ,nor trl light, trl stop abb on under hood fuse box cover. Nothing helpful or bad fuses. Checked factory connector under rear bumper and found no vdc. Geesh! How about a bread crumb of real useful information Toyota!