It almost always happens with the a/c or heat on. “why does my toyota highlander make noise when off?” is a question that can cause worry for any owner If you are posting a question about a car problem, please be aware that we do not allow these types of posts in this sub (check rule 5)
Toyota Highlander humming sound while driving - YouTube
In which case, your post will be deleted at some point.
A loud, deep, hollow resonate sound that could be the result of your driveshaft spinning out of true due to its universal joints
When this happens, waves are created which push up on your vehicle’s floorboard. 2007 toyota highlander awd has a strange noise coming from the serpentine belt area It started randomly as i was exiting a parking lot It gets louder when i turn the steering wheel or.
Normally, the sound disappears within a minute or two after the engine warms up If the sound persists or becomes sharper, then it's necessary to check for belt aging or the exhaust system While driving on the streets, i didn't get much sound that was beyond normal/ no cross wind noise The most common reason for a toyota highlander alarm going off at random is due to a faulty hood switch or faulty door switch
Another common cause is that the 12v battery is about to die.
