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Toyota Highlander Questions

Get answers to questions about your Toyota Highlander at RepairPal. Find solutions, diagnose problems and get back on the road.

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I have 75,000 miles on it now.

Do I have to use premium grade?

In my Highlander, the check engine light stays on 24-7. Why is this? Even when nothing is wrong, it will not turn off. It makes it difficult for me to know if something is actually wrong or not.

Antilock brakes engage on highway if I lift brake Petal up with foot then fine for a while vib very bad when happens

through all the gears. I believe that it is only shifting to 4th gear. The transmission is a 5 speed automatic. The vehicle is all wheel drive.

Thank you!

which is the best used 2010-2013 SUV for me to purchase for comfort and reabililty?

which is more reliable?
How does a 2013 sequoia compare?

Tachometer was working fine until I was about a mile from home, abs and brake warning lights both came on at the same time and fuel gauge needle began fluctuating. This was all simultaneous. Turned the car off and restarted abs and brake lights both turned off but tachometer still not registering. Aliens or?

Making laud mufful noise back sides
A friend think its wheel bearings
How much is cost to fic it?

Which terminal should l disconnect first?

Where can i find lamp failure module in 2002 toyota highlander? My right rear brake light doesn't have power, i tested on the terminals without the bulb and housing. The park light terminal has power, but the other terminal (brake) doesn't have power even when brake pedal is pressed. Do you happen to know where exactly can i find or how to reveal the brake lights junction (presumably somewhere between the fuel filler lid and left brake light housing)?

Check engine light came on. Purge valve for a 4 cylinder car was ordered and placed inside a 6 cylinder car. Will problems occur or not since the wrong purge valve was installed?

And it has no power and I need to change the plugs so what should I replace and how much should someone charge me to do both ?

have already had both catalytic converters replaced.

What started out as a low hum has progressed to a loud whine or roar accompanied by a vibration in the floor. I have had the front bearings replaced and numerous things checked or fixed. The latest opinion is that it could be the transfer case, but he's not 100% certain and won't be until they get to the transfer case and take it apart. It's an expensive repair that I don't want to do if I don't need it. Is this a common problem? Thanks

Is it more likely a belt or a pump?

cost for inspection of belts and radiator flush

the shoes are still good

How hard is it to add oil to the differential? Can this vehicle be driven in 2 wheel drive without the rear wheel drive?

Hi All,

About 3 years ago, our 2011 Toyota Highlander (6-cylinder, not a hybrid) started having a very wet floor (as in very damp to the touch, and the bottom of the mats were always wet) and smelling mildew-y. Turns out that the tube running from some part of the air conditioner that exhausts out water got a spider-web in it; so whenever we used the air conditioner, water couldn’t drain out and started overflowing from something and into the car. We ended up having to tear out and replace all the carpets, having all sorts of mold/mildew remediation, etc. Took something like 2-3 weeks; not fun. The actual “fix” for the problem (not the fix for all the damage) was apparently just taking canned air and spraying out the tube to get the web out. We were told that spiders building webs like this is a known issue but that there is no way to stop it.

Fast forward to yesterday – we again have a wet floor (although maybe not quite as wet but the mats are wet on the bottom), the mildew smell, etc. We obviously haven’t been using the air conditioning recently (we’re in NJ), but I’m assuming that using the defroster could have the same effect. So, if there is a spider web there, it looks like I may have to have that removed, and then tear out all the carpets and go through all the mold/mildew remediation again.

Am I looking at this correctly? Could it be something else? My wife drives the car, and she doesn’t remember driving through any huge puddles recently. Any thoughts, help or insight would be greatly appreciated.

Also, I seem to remember that last time, the mechanic at the dealership we went to said that from inside the car, near where the driver’s or front passenger’s knees are (I forget which), there is a panel that can be removed and the exhaust tube accessed. Anyone know anything about this?

Thanks for any help.