2006 Toyota 4runner Lights Problems

Your headlights have failed multiple times because water is getting inside the sealed headlight assembly. You've had the entire headlight assembly replaced three times at your own expense, but the problem keeps happening with each new unit. Three different body shops, including two authorized Toyota dealers, confirmed there's no design flaw that should cause this water intrusion, suggesting a manufacturing or assembly defect. The fix will likely require Toyota to either redesign the headlight assembly seal or replace it with a corrected version.