Toyota 4Runner owners have reported 2 problems related to rear window defogger (under the visibility category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Toyota 4Runner based on all problems reported for the 4Runner.
Tl the contact owns a 2007 Toyota 4runner. When the rear defroster was activated, the rear window fractured. The vehicle was taken to hamer Toyota (11041 sepulveda blvd, mission hills, CA 91345, 818-365-9621) where burnt wires were found. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 216,800.
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Tl the contact owns a 2007 Toyota 4runner. After the rear window defroster was activated, the rear hatch glass exploded. The contact was informed that the warranty period expired on April 30, 2018. The vehicle was repaired by kalispell Toyota (located at 2845 u. S. 93 s, kalispell, mt 59901, (406) 755-6060). The manufacturer was contacted regarding the warranty extension for similar failures with the vehicle and the contact was informed that no assistance would be offered. The approximate failure mileage was 118,000.