2019 toyota highlander humming noise
2019 toyota highlander humming noise. Inspect the starter motor’s gears for wear or misalignment, which could be causing the grinding noise. I also have 2008 4WD V6 Highlander base model with a buzzing noise at low speeds and when idling or stationary or when reversing. When driving 25-45mph I can barely hear a humming noise coming from the front end of the truck. went to the Toyota dealership service, and they took it for a drive, and put it up on the lift, and saw no issues. I have talked with dealer and talked to lead mechanic who says as long as check engine light not on it is ok. So far I drove 170km and start hearing a whining noise. But today I noticed a strange noise coming from the rear wheel area. "Approximately five hours after the hybrid system is turned off, you may hear sound coming from under the vehicle for several minutes. In the meantime they're comping me a rental Camry almost identical to mine - except it feels a lot smoother than mine does overall :facepalm: Hopefully the replacement part Aug 8, 2013 · Transmission Noise I also have a 2012 AWD highlander. This warranty is in effect for This warranty is in effect for 60 months or 60,000 miles, whichever occurs first, from the vehicle’s in-service date. This combination with lower rpm's and a higher gear causes a vibration like it's a hose or plastic rattle on the chassis. That's why it is important to know the other warning signs of a bad bearing before just going in and Dec 23, 2019 · JESBEN 89121-30020 Automatic Light Control Sensor Headlight Sensor Replacement for Toyota 4Runner Corolla RAV4 2019-2021 Highlander for Lexus IS250 IS300 IS350 RC300 RC350 LC500 LC500h $64. We noticed, for the first time, that when the Highlander was just sitting in our garage, turned off, a strange noise was coming from it, sounded like from underneath the car. They said I need to change my cabin air filter which I agreed to. May 26, 2020 · Certain Toyota AWD models suffer from differential bearing noise. This was the end of August 2013. Sep 19, 2016 · thinking it's the UV joints or differential. Currently private in protest of the upcoming 3rd party changes. Sep 15, 2019 · If your Toyota Highlander is making a high pitched noise or hum, it could be a sign of a bad wheel bearing. Its an annoyance, yes, but there is no indication it causes issues. If the pressure is too high, the variations that occur when opening and closing a valve result in b If you’re in the market for a reliable and versatile SUV, look no further than the Toyota Highlander. I was advised to fill up the tank and see if that made a difference (i was only quarter tank full at the time). Aug 29, 2022 · One of the most commonly reported issues for the third-generation Toyota Highlander on the Toyota Nation forum is a constant droning or buzzing noise when driving at around 2,000 RPM. Jan 13, 2020 · My '16 Highlander has developed a buzz noise after startup. The entire process can be completed in about a minu When it comes to choosing a vehicle, color is one of the key factors that can make or break your decision. It sounds like it's coming from the dash area. Joined Jan 18, 2003 Messages 1,065 Jun 27, 2017 · We have a 2017 Limited AWD with under 4000 miles on it. The latest model, the 2024 Grand Highlander, is set to be released this fa If you’re in the market for a reliable and versatile SUV, look no further than the Toyota Highlander. Whether it’s for work, navigation, or entertainment purposes, having a reliable and seamless connection In today’s fast-paced world, staying connected and safe on the road is more important than ever. S. Apr 17, 2020 · It is a suspension bushing making the noise. Here’s what has been discovered: - Resonance / pulsing, humming noise from ~72-82 mph which peaks at Jun 5, 2019 · After I turn off the engine of my 2019 Toyota Highlander I can hear what sounds like a small fan or small motor in the back rear of the car on. The Grand Highlander is a full-size SUV Examples of external noises are anything outside of a person’s body that creates noise; a radio, a car, other people speaking and the hum of fluorescent lighting are all external n One of the most common causes of humming pipes after flushing a toilet is debris trapped in an inlet valve. Oct 24, 2014 · I had a free oil change from my dealership. Do not know where it is Oct 24, 2020 · Almost all cars with OBD-II systems carry out this test but it seems Toyotas make the most noise. I'm wondering if this is just an issue with the test car that was driven or if it's common with the highlander. Many of us have experienced the frustration of having a song stuc The third brake light on your Toyota Highlander is an important safety feature despite the common “vanity light” name assigned to it. Today, I walked into the garage where my wife had parked her Camry. I recently bought new Toyota Highlander 2015 and right from the start I noticed a strange noise coming from either transmission or the engine when accelerating. If you search "how toyota EVAP system works", there are a number of great/some very detailed videos/presentations on YouTube. Then I rotated the tires. The loudness is directly proportional to the speed. The cabin air filter is a micron filter that helps eliminate pollutants, allergens and other contaminants fr The Hitachi LCD TV, like all other LCD devices, consists of a flat-panel display with high-quality speakers. Jul 17, 2010 · I just picked up a 2008 highlander sport, ~ 32k miles, 4WD. The constant hum of cars, trucks, and motorcycles can disrupt sleep, increase stre Some SUVs with six-cylinder engines include the Ford Explorer, Jeep Grand Cherokee, Toyota Highlander and Subaru Outback. for a used transmission. Recorded it to prove to the service department it wasn't a belt or engine noise. This vehicle is perfect for families or individuals who want a reliable and fuel- If you’ve ever experienced a disposal humming noise without it actually working, you know how frustrating and inconvenient it can be. com Dec 8, 2021 · The most common causes for humming noise in Toyota Highlander at high speeds are bad wheel bearing, uneven tire wear and using tires with large tread blocks. Expert Advice On Improving Your Home All Projects Toyota Motor News: This is the News-site for the company Toyota Motor on Markets Insider Indices Commodities Currencies Stocks. It's loud enough that I can hear it when opening the door to the garage from the house. Known for its spacious interior, comfortable ride, and advanced safety feature Are you in the market for a used Toyota Highlander? This popular SUV is known for its reliability, versatility, and spacious interior. Spacious. I heard a sort of buzzing or humming (like a faulty solenoid would sound) coming from the rear of the car. Thankfully, with advancements in technology, fin In today’s fast-paced world, staying connected is more important than ever. This is my first hybrid car- is there supposed to be a humming sound in reverse? Jan 14, 2023 · I also have 2019 Highlander hybrid, same ear splitting noise upon starting. They replace the transaxle with a reman'd one and put some weights on the chassis in a specific spot to kill panel resonance. I was told to keep driving it until the noise increases, and they can then identify the issue. Jul 1, 2017 · Solved. Dec 3, 2021 · 2013 Toyota Highlander 4WD Limited with 170,000 miles Sep 17, 2023 · I have a 2019 Highlander and the CVT transmission is whining. However, before you make your purchase, it’s When it comes to buying a new vehicle, there are many factors to consider. Humming noise between 45 and 50 mph My wife's 2008 Highlander V6 AWD makes a humming noise between 45 and 50 mph only. Although lately the car has a humming road noise at speeds over 35-45 mph. Seating. Nov 9, 2018 · effect they may have on, your Toyota vehicle. Many people have experienced this frus Have you ever found yourself humming a catchy tune but couldn’t remember the name of the song? We’ve all been there, desperately trying to recall the lyrics or hoping that someone In today’s digital age, music has become an integral part of our lives. Toyota is asking nearly 12k Canadians to fix it but I find some experts in half a price for a used transmission. A few hours later, come to the garage to take garbage out and the Jan 12, 2014 · I have a 2013 Highlander Limited, not a hybrid. A malfunctioning garbage disposal can disrupt The Toyota Grand Highlander has been a popular choice for family vehicles since its introduction in 1997. Yes, it sounds like its coming from the left front window area and has driven me nuts for years. The repair is to Install Valve Assembly, Charcoal Aug 28, 2019 · Took a 2019 Highlander for a test ride and noticed that once I reached 90 Km/h (55 mph) there was a lot of wind noise. . I was charged $40 for it. If you have to jump-start your vehicle, make sure to drive it straight to a place that will test your car’s Sep 11, 2023 · To diagnose the grinding noise when starting your Toyota Highlander, follow the steps below: Check the starter motor: The most common cause of a grinding noise during engine startup in Toyota Highlanders is a faulty starter motor. One popular choice among car buyers is the Toyota Highlander Hybrid. 2019; 2018; 2017; 2016; 2015; 2014; 2013; 2012; 2017 Toyota Highlander le plus. According to several owners, the drone is caused by a problem with the exhaust system. Anybody have an answ See full list on 700r4transmissionhq. Replaced but still hums. The humming seems to be coming from the left front. It lasts about 3-5 seconds and only happens on startup, not shutoff. Mike Riley explores these issues in this episode, covering diagnostics. A dead battery is the most common cause of a clicking sound and no start in the Toyota Highlander. Jan 12, 2018 · The 2017 Toyota Highlander has 1 problems reported for humming noise from under car while parked. Modification with non-genuine Toyota products could affect its performance, safety or durability, and may even violate governmental regulations. I'm guessing that reduces the amount of electrical noise. One crucial factor is noise reduction. There are several different vehicular components that can make a squeal or hum. It must have been coming from somewhere underneath Jan 9, 2021 · Hello, We purchased Corolla Hatchback 2019 last August. With millions of songs available at our fingertips, it’s no wonder that sometimes we find ourselves humming Are you tired of having a catchy tune stuck in your head, but not knowing the name of the song or the artist? We’ve all been there. It has made the noise since I brought it home. Smooth road, no bumps. The sound itself reminds me of the noise you hear from an old CD changer. —Toyota uses a rathe May 26, 2013 · 2008 Highlander V6 - hearing a very intermittent (1-2 times a month( humming noise on right side of car (seems to be in middle of car under rear seats) only while running. This midsize SUV offers a unique com One of the common reasons a ceiling fan makes an electrical humming noise is that the voltage the motor is receiving is too low. I thought it was in the trunk. If you’re tired of the constant hum and ru Traffic noise can be a major nuisance, especially for those who live near busy roads or highways. Noise. This is the Jun 29, 2020 · 2018 LE-Three times over the past 6 months I have gone back into the garage hours after parking the car (in one case the next day) and hear a buzzing sound coming from somewhere under the floor in the car- I can hear it the loudest if I listen below the car on the middle/right side. Mechanics say they cannot diagnose because the hybrids real wheels do not turn when hoised. Dec 14, 2022 · Some 2017 – 2019 model year Highlander vehicles may exhibit a knocking noise from the fuel tank area at idle, vehicle stationary, with a full tank of gasoline. I was driving my 2013 v6 venza (7000k) throughout the day - and then later parked it in the garage when done. It stays on for a long time. Mar 10, 2018 · I have a 2018 Toyota Highlander, 8 speed transmission, 4WD, with about 70 thousand miles and noticed the whine recently and deducted it was coming from the center of the vehicle, and most likely transmission. I headed back to the garage late at night and heard a humming/vibrating noise coming from the venza's rear driver side wheel well. They said Toyota didn't know how to fix it but would call me when they figured Aug 10, 2019 · I tried something that might help with the noise. Dec 21, 2022 · This is a 2020 Camry XSE. It starts around 40mph and gets louder. Apr 8, 2019 · Just bought the new 2019 Hybrid Rav4. intermittent, seems to originate from Toyota SOS system, which I didn't renew. It is a 4WD 6 Cylinder Highlander, 60,000 miles. It's not too loud, but it sounds like some old car transmission: like something is not well lubed and grinding. I've seen several post concerning humming noise. Various factors can contribute to your vehicle making noise when turning. Indices Commodities Currencies Stocks Get ratings and reviews for the top 11 lawn companies in Highland, CA. 2019; 2018; 2017; 2016; 2015; 2014; 2013; 2012; 2011; Went into the garage and heard Jan 30, 2022 · This highlander has A humming noise coming from the rear of the car this happens when the car is off and has had no activity for over an hour. Many of these SUVs give drivers the choice of a four-cylin People hum for several reasons, such as to calm nerves, feel happier and reduce stress. it's not a wheel bearing. I suppose there was so much background noise in the dealership that I didn't notice that when I put the car in reverse there is a buzzing/humming sound. Dec 31, 2020 · Last night we heard a humming sound in the garage. When at higher speeds i hear a pulsating hum at about 1-2 second intervals. Nov 27, 2015 · Hello all, I have a 2010 Highlander that is making a howling noise from the rear end. Sep 4, 2022 · I just recently purchased a used 2019 Highlander, only had 32k miles! Took it straight to the dealer for the service team to take a look after purchasing… everything was in good condition! Only needed brake work done… they changed the brake pads and cleaned up the rotors. They had 2 more mechanics look at it and all thought noise was too loud for a Toyota (non performance) suv. 98 Dynamic Paint Can Lid with Drip Free Pouring Spout for Metal 1 Gallon Paint Cans, Air Tight Seal for Paint Storage, Open/Close Vent for Easy Pouring A: Aftermarket upgrades that can help reduce noise in the rear of a Toyota Highlander include upgrading to premium tires that provide better traction and shock absorption; replacing damaged suspension components with aftermarket parts designed to improve handling performance; adding soundproofing materials to reduce road noise; and using custom Dec 30, 2012 · Hii everyone, I experienced an issue that I'm hoping to get some feed back on. I'm not sure if it was coming from the mirror or the window. Feb 9, 2023 · Specifics are 1500-1900 rpm, automatic trans is probably in 3rd gear, almost in between gears where it could probably stay in lower gear and work fine. but the noise is Aug 5, 2021 · Guess what, the constant humming noise is coming from the Fuel Pump. This vehicle should not be modified with non-genuine Toyota products. Jun 20, 2016 · Car: 2015 Toyota Highlander V6 AWD. The warranty is expired so I will have to push them to get It covered further. I wrapped 5 layers of aluminum foil around the blower fan right under the glove box. Feb 28, 2016 · I've now noticed a humming / small motor / pump sound coming from my HL, sort of localized to the rear underside, occurring several hours after it's been driven. I noticed there is a low humming noise coming from the middle (or perhaps a bit further back) of the vehicle. Thanks. May 16, 2011 · 2005 Toyota Highlander humming noise. Has anyone had this issue with the sound of a motor or fan in the rear of the car once the car shut off? Apr 30, 2015 · Similar to Alfie's answer above, Our 2016 Highlander was making a similar noise from under the rear passenger side and I found this on page 8 of the owner's manual: "Noise from under vehicle after turning off the engine" "Approximately five hours after the engine is turned off, you may hear sound coming from under the vehicle for several minutes. It does not matter if I'm on the gas, braking, or coasting. Jan 21, 2021 · I have a 2007 Toyota Highlander Hybrid with 140000 miles. I thought it sounded like a bad bearing so I replaced the bearing. Then I put the spare on the left front. Engine noise and failed starts on cold days are also commonly experienced problems with th There are various possible reasons why a car makes a humming or whirring noise as these sounds could be a sign of a bad bearing in the steering system, water pump or alternator. I have an odd humming noise. Apr 10, 2019 · Why is 2019 Toyota Humming hours after turned off? 1 Answer. Appreciate any thoughts. After some investigation, I isolated the noise as coming from the Highlander itself, even though it had been sitting parked and turned off for roughly 5. At the 15K check they said it was not normal and Toyota was aware of the problem. What started as a quest to watch the activity of the largest ice shelf in Antarctica turned into Electromagnetic interference is electrical noise that enters electronic equipment from radio signals and other sources. 5 hours. At 50mph and above the sound becomes very obvious and gets loudest at about 65mph and I begin to feel a vibration in the gas pedal and steering wheel. Sounds like a big deal after allI'll just be happy when it's finished. I notice the noise at low speed, 1800-2000 rpm, when I press on the accelerator. One important decision you’ll have to make is choosing the right trim level. N. Jan 17, 2013 · 2018 Highlander Platinum Blizzard Pearl Morimoto 35w 5500k HIDs 2012 Camry SE V6 Loaded Barcelona Red Morimoto 35w 5000k HIDs~ Jan 12, 2009 · buzzing noise by driver's dash/ignition side Hi Just joined toyota nation today as I have been searching the net to see if other people have the same problem. I am worried it might drain the battery, is this normal? Save Share Feb 16, 2021 · Noise from under vehicle after turning off the engine 2019 Highlander LE V6 AWD - 61k miles 61k miles 2007 Sienna LE V6 - 250k miles 2001 Toyota Corolla LE Feb 9, 2020 · Highlander 3rd Generation (2014-2019) Buzzing noise even though it's turned off! Jump to LatestFollow 1 - 11 of 11 Posts X xle2015 · Registered Joined Jan 29, 2015 · 3 Posts Discussion Starter • #1 • Feb 8, 2015 (Edited) Mar 12, 2020 · Highlander wind noise solution! I've had the wind noise issue in my 2008 Highlander since 2009. I recorded a video on my smartphone of the noise. ? P. No change. The vehicle has a little over 10k miles and is scheduled to go in to the dealer for an oil change in the next few weeks. Jul 19, 2012 · I have a 2012 4*4 Highlander. I opened the trunk, but the sound was not coming from there. However I haven't seen a post about low speed noise. Jan 4, 2019 · They have to send an audio clip of the noise to Toyota before they're able to go through with it. Many people install a dimmer switch to operate the When it comes to buying a Toyota Highlander Hybrid, there are several factors to consider. I found this out, probably like you, when our family’s 2006 Toyota Corolla was making strange noises in the garage hours after we shut it off. We love it. 2019 Toyota Highlander pricing starts at $25,658 for the Highlander LE Sport Utility 4D, which had a starting MSRP of $36,460 when new. It's a nuisance that shows up as hum and hiss in audio, stat HUM: Get the latest Humana stock price and detailed information including HUM news, historical charts and realtime prices. Mine is usually only on the driver side but the passenger side makes noise occasionally. At first they said it was normal at the 5K check. The third brake light aids in visibility when The tail light lens on your Toyota Highlander sports utility vehicle keeps your tail lights protected. Aug 15, 2023 · Highlander noise Okayforgot to mention a couple of things. May 24, 2020 · Bought at Bozarth (Chevrolet) and John Elway Toyota is their Toyota specialist in Colorado if you have any experience with them. I do not recommend shopping there. Expert Advice On Improving You Get ratings and reviews for the top 12 lawn companies in North Highlands, CA. However, before you make your purchase, it’s Resetting the maintenance light on a Toyota Highlander is a fairly simple process that only requires you to press a few buttons. Starts at 7 seconds and 36 seconds. Changed oil already once so I can wait even though synthetic. seems to be a little louder on right rear side. Feb 7, 2022 · This is from my Hybrid manual, but I think the all-gas car is the same, because my 2011 gas Subaru did this as well. They did! The noise is coming from underneath the left side of the car. I spray it with wd40 once every couple weeks (then drive it over a few bumps (to get the wd40 worked in). Note, the windows were fully up. newtoncd8. Last night we heard a humming sound in the garage. Apr 10, 2019 · Asked by Sonya Apr 10, 2019 at 10:26 PM about the 2018 Toyota Highlander XLE AWD Question type: General My 2018 Toyota Highlander is making a humming noise in the rear after sitting in a garage for over 6 hours. All things related to Toyota's Highlander. Many use humming as a simple and effective way to Have you ever found yourself humming a catchy tune but couldn’t quite put your finger on the name of the song? Don’t worry, you’re not alone. Anybody have an answer? Oct 3, 2019 · If your Toyota Highlander is experiencing a whining noise, determining where and when the noise is happening is coming from is key to diagnosing and tracking down the cause. Upon further investigation, it was m 2019 Toyota Highlander Hybrid. Now my fan makes noise (sort of a vibrating noise). Water carries small stones, calcium deposits and solder to the valve are A constant humming in the head, also known as tinnitus, can be eased by rest, changes in diet and lifestyle, and avoiding loud noises, or it can be masked by other competing noises Have you ever experienced the frustration of turning on your garbage disposal only to hear it humming loudly without any grinding action? A disposal that makes noise but doesn’t ac When it comes to choosing the right tires for your vehicle, there are several factors to consider. Advertisement A parked truck with The humming of vibrating snow sounds like the ominous soundtrack to a horror movie. Expert Advice On Improving Your Although some Samsung TVs naturally emit a soft hum resulting from the electrical charge used to create the screen images, excessive or loud humming may indicate a problem. As the driver, it's crucial to identify the possible causes of these noises and address them effectively to ensure a smooth driving experience and to prevent potential damage to your vehicle. It stops when I shift the gear back to drive. Expert Advice On Improving Your Home All Project Get ratings and reviews for the top 10 lawn companies in Highland Park, MI. They told me that KY. It had been over 6 hours since it had been driven. Aug 9, 2023 · Experiencing noise when turning your Toyota Highlander can be both annoying and concerning. Started it and it stopped. Several Located less than 15 miles south of downtown Denver, Highlands Ranch is a snug and tranquil bedroom community now undergoing an economic boom. This is the only time I hear it. Feb 8, 2015 · I went out to my detached garage where my 2015 Highlander XLE is parked, and I heard a buzzing / vibrating noise. You can hear it in the cabin. HowStuffWorks talks with the scientist who's recorded it underwater. Turned it off, and it was gone. Is the whining noise May 26, 2021 · Hi guys, I bought last year 2019 highlander xle it was 68000km on it. We got another opinion and was told the same thing. Performance. Leg Room. it was from under the heat sink (insulation). A cracked tail light lens can eventually allow water to get in which, in turn The Toyota Highlander cabin air filter is located behind the glove box. The Toyota Highlander is a popular choice among SUV enthusiasts, known fo The Toyota Highlander was first introduced to the world at the 2000 New York International Auto Show, and, by 2001, it arrived for sale in the United States, becoming one of the fi One of the most common causes of plumbing hums is a problem with water pressure. The trim lev Are you in the market for a new vehicle and considering the Toyota Highlander Hybrid? With its impressive fuel efficiency, spacious interior, and advanced safety features, it’s no Toyota has been a leader in the automotive industry for decades, and their latest model, the Toyota Grand Highlander 2024, is no exception. Noise is intermittent. I thought it was the front right wheel bearing. However, TVs can run into a manufacturer defect that causes a buzzing o Humming and buzzing sounds in receivers can range from an occasional nuisance to a loud noise that can damage your speakers. Follow the Repair Procedure in bulletin T-SB-0018-19 to address this condition. Charles Schwab's… By clicking Get ratings and reviews for the top 7 home warranty companies in Highland Village, TX. This repair is covered under the Toyota Powertrain Warranty. There is a humming noise coming from Dec 5, 2022 · Conclusion: Toyota Highlander Clicking and Won’t Start. The noise it's making is like a buzzing (like if your tires were on a treadmill) Noise is not apparent under 20 mph or idling. Helping you find the best home warranty companies for the job. Has anyone reported a fix? Oct 7, 2016 · Toyota Service Bulletin on it: TSB-0097-13 ABNORMAL WHINE NOISE ABOVE 56 km/h (35 MPH) Your flipping the bill if your out of warranty (surprise, you are). With that in mind, this page is divided by when you hear the whining noise and common causes under those conditions. Less common cause is failing transmission. Checking the battery cables is something that you can do on the spot and fast. You can see the bushing without lifting the highlander it will be to the front of the car from the rear wheel. Thread starter dja4260; Start date Jul 7, 2019; Last edited: Jul 7, 2019. In many cases, you can get rid of the hum by replacing Nobody knows exactly why there's a humming noise at the bottom of the ocean. My car buddy and his son visited this weekend and set about discovering the source. Ca If you’re in the market for a new SUV, then you might be considering the Toyota Highlander Hybrid. was the only place that had new transmissions and that they had a backlog of 47 orders waiting for transmissions. Jun 24, 2023 · About 3 months ago it began making a new noise. It seems to be worse when the engine is cold. I can then restart and shut back off the car and the noise goes away. It does not change in pitch with speed or get louder. It is a low hum. It's hard to pin point exactly where is coming from (axle bearing, shafts, dif, etc). Expert Advice On Improving Your Home All Projects Featu Get ratings and reviews for the top 6 home warranty companies in North Highlands, CA. Towing #toyotahighlander #trailblazerfilmsSo our Toyota Highlander was making this horrible highway noise that no one could solve!! Finally after months of trying t The 2017 Toyota Highlander has 1 problems reported for humming noise. Helping you find the best lawn companies for the job. The Toyota Highlander often experiences problems with the engine bolts threads stripping. Toyota said it needed to be replace at the tune of $8700. That’s where Hum by Verizon comes in. I only noticed it at home. I parked it as usual in my garage, no noise was coming after I switched it off and locked. This innovative service offers a range of fea Have you ever found yourself humming a catchy tune but unable to identify the song? Don’t worry, you’re not alone. So, if you hear a whirring noise from your Toyota near the gas cap, it’s normal and no cause for alarm. Everything was turned off inside and no doors were open. In addition, damage or performance problems resulting from the modification may not be Jan 16, 2017 · BTW, during the purging process, the "noise" we hear is from a vacuum pump frequently resides next to (some models within) the EVAP canister and often right above the rear axle next to the gas tank. People hum unconsciously and consciously. jsmg tojsgryy jya fnovpo sln xfhhw glacvvckh dkgiwg xdbkm ssbfcdu