20 Most Recent 2005 Toyota Highlander - Page 6 Questions & Answers

If you have a sunroof you likely have clogged sunroof drain holes. See YouTube on to easily clean out.

It's not a common problem that i know of. I would start by checking charging voltage and pressence of AC voltage in the system with the engine on. Low charging voltage and excessive ac voltage can cause odd electrical problems.

Possibly - get your hands on a multimeter and see what voltage is at the battery terminal firstly with the car not started your battery could also be dead if it has dropped a cell it will read under 12-12.5 volts. Then check when the car is running if it is under 13V say 12-12.5 then it is your alternator. Otherwise if there is healthy voltage 13.5+ then the alternator is good and your problem lies elsewhere.

Keep it pointed in the cooling direction... or it may be a manufacturer issue. Toyota dealer can/might help too. Probably for free. Sounds like a relatively simple issue.

take it to the dealer plz

You would need to have someone scan the body computer to check for trouble codes. Most auto parts stores can scan engine computers but not always the body computer.The trouble codes direct you as to what to test.

Even I am having the same problem. In addition to power windows and turn signal, the seat belt sign is also not working. Let me know if you find otu something and same with me, if I figure something out I will let you know