2004 Toyota Highlander Electrical system Problems

“When driving the heater or the air will just come on, usually when you would drive over a rough spot in the street.usually the air will come on in the winter and the heater will come on in summer.call Toyota they said cost about 800.00. I had it fix by an independent garage.it still cost me 370.00. Then I go on line and out there's hundreds if not lots more people that have the same problem.I think since there is so many people that this same problem that Toyota should reimburse us at least partly.”

“I noticed that my original equipment/manufacturer passenger-side low-beam headlight lens had a burnt spot on the inside of the lens (clearly melted lens material). I checked the headlight bulb, which is a factory-installed kaito model hb3 low-beam bulb. The bulb was discolored black and smoky looking with an obvious bulge of melted glass in one side of the bulb. The low-beam headlights still work, but the bulb seemingly has overheated, melting both the bulb glass and the inside of the lens assembly.”

“Intermittent loss of A/C and/or heat and finally total loss of A/C on my 2004 Toyota Highlander. Initial fix was to tighten the nut on the temperature control. I found that this problem was inherent after going to the web and learning of the many problems with the assembly and the quick fix. Essentially the A/C stopped working entirely. I brought it to my private mechanic and he found that the cable from the temperature control to the mother board was broken. …”

“A 2004 Toyota Highlander signal light (safety item) is malfunctioning and when I took it to Toyota dealer (darcars), I was told I have to change the navigation system (luxury item) which currently is working. I have no idea why they had to integrate these two functions when one is a safety and the other one is luxury items. Besides, it costs $6000 + labor + tax to change the navigation system. After intensive search on the internet I found out that Toyota knows about the problem except they only cover the problem under the 36,000mile/3 year warranty. …”

“I bought a 2004 Toyota Highlander in november of 2003 because my husband and I found out we were pregnant and needed a bigger car. Three months and 5000 miles later I had to be towed to the dealership because of a defect in a chip in the motherboard. (some sensor defect that caused the asc mechanism to foul up.) anyway, on monday, the same thing happened again at 50500 miles, but this time the cause was a steering sensor actuator. Of course, the car is no longer under warranty. …”