Anyone who has the 60-75 mph hum please respond here

Anyone who has the 60-75 mph hum please respond here

Trying to figure out if it is normal by surveying everyone on here. Ive read the older threads about it, especially about some who have had the drivetrain replaced.

The car hums at 60-75 mph, a sound like a dump truck is driving next to you.

I have P85


eddiemoy | 14 september 2013

me, but mine is silent until 65, i think it is partly to do with the car lowering itself at 65, then it get loudest at ~80mph, less noisy above that. half thinking it is the wheels. will know when i get my snow tires in a couple of months.

mikeah007 | 14 september 2013

I have that problem

johnson | 14 september 2013

Yes I have the same thing. Almost sounds like the electic motor. Not the tires. Bugs me. But it could be worse. A gas engine at 70 in most cars is horrible. But I still wish I did not have this in the tesla because the hum is an annoying one.

cbassdriver | 14 september 2013

I am getting very close to putting in an order however, between the reports of the hum, GPS, radio and pano roof problems I keep reading about, I am quite concerned that I could be spending $90K on a car that isn't quite ready for prime time.

To the owners: How comfortable are you that tesla is going to work on these issues until they are fully resolved? Seems like they could just say "it's normal" and leave everyone with a flawed product.

mortgagebruce | 14 september 2013

Mine had that and it got bad at 70 mph. Last week they replaced my drive unit and there is a significant reduction in noise. They actually had to replace it twice because the first replacement was just as bad.

T3SLA | 14 september 2013

Did they return the model s to you after the first replacement allowing you to discover it was just as bad, or did they test it after install and discover it themselves?

shop | 14 september 2013

I have it too. Starts around 62 mph. I have a service appointment next week and will report what they say/do.

To the poster that is wondering about purchasing the car. Don't let these posts freak you out. Every single production car has random issues. Some cars come off the line perfect, others have a defect here or there. Most Model S are perfect otherwise we'd be seeing a lot more complaints on this forum. They are producing 700 cars a week now. Thats a lot of cars. The few issues we see are a drop in the bucket compared to the large number of cars on the road. The nice thing about Tesla is that they do fix problem quickly.

suratchai | 14 september 2013

I think everyone has that problem because all MS model uses the same motor.

shop | 14 september 2013

No, only a few people have experienced the 60 mph humm, or drone. It is not ubiquitous.

RanjitC | 14 september 2013

I don't have the hum in my P85

RanjitC | 14 september 2013

The P85 has a larger motor and inverter.

SamO | 14 september 2013


I am currently driving a P85+ due to my MS having a rear hatch alignment issue.

That being said, they are taking good care of her and lending me their top of the line.

I haven't been inconvenienced in the slightest. I'm having a blast comparing the different driving profiles.

rsmits | 14 september 2013

I have it to from the rear passenger side starts around 62mph. Not real loud just loud enough to be annoying from time to time.

TheCheetahExpress | 14 september 2013

I have that hum as well and went to the service center about a 1 1/2 weeks to get it checked out. Was not the drive train (phew) but from the rear michelin primacy tires. They isolated the noise by changing tires from the rear to the front and the noise started coming from the front. They found out it is normal with those tires and the wear has been normal.

ChetB | 14 september 2013

My Tesla S is due to arrive the middle of October. May the purchaser ask for a test drive before accepting delivery?

shop | 14 september 2013

Seriously guys, your car will be fine. Tesla DOES put each car through a rigorous quality check. My hum/drone didn't start occurring until about 3,000 miles. And as the other poster said, who knows what it is, it could be tires. I going in for service next week and we'll see.

Xerogas | 14 september 2013

No hum here. 40 kWh model, 5600 miles

lars.thomsen | 14 september 2013

I picked up my new P85+ yesterday and have the same issue. I will return the car to Tesla on Monday. I also own a P85 Sig that I drove over 12.000 miles both in the US and Europe with no such sound at all. It is totally quiet even at Autobahn speeds above 100 mph. Not the new one. :-(

shop | 14 september 2013

Bear in mind folks, that the same apparent noise issue can often have different reasons. I had an annoying rattle for a while and found out it was the license plate holder!

PBEndo | 14 september 2013

@shop "Tesla DOES put each car through a rigorous quality check."

I wouldn't be so sure of that.
I am sure you have seen Nick's Glitch/Due Bill Thread
and his Delivery Checklist

I do agree that Tesla will take care of the problem though.

nvjx | 14 september 2013

I have the loud hum in my P85 at freeway speeds. I'll try talking to the service people.

AmpedRealtor | 14 september 2013

I had the rear hum noise at 65-75 MPH, though it was tire noise, mentioned it to service and they were instructed by Engineering (after listening to a recording of the sound) to replace the "drive inverter". I picked up my car today and no hum at highway speeds and I'm on new Primacy tires - so it's not the Primacy tires.

Unfortunately, the alignment was off and I returned the vehicle to the service center. They said they would have it checked and re-aligned. They were supposed to do the alignment after the drive unit replacement, but told me at pickup today that they no longer have to do alignments on that particular fix. However, my experience has been different and the alignment is noticeably worse after having the drive inverter replaced and the Primacies put on.

Not entirely happy that the vehicle was "road tested" by service and given back to me with an alignment issue. The car drifts to the right when you release the steering wheel. It's not a hard pull, but a drift that will take you across three lanes of traffic if you don't keep your hands on the wheel. The loaners did not have this issue and I'm on a my 2nd Model S loaner - this one with 21" wheels and no air suspension.

So I think Tesla could stand to improve its QC, no doubt about it.

AmpedRealtor | 14 september 2013

"though it was tire noise" should have said "thought it was tire noise"

jay.kropp | 14 september 2013

I get it similar to the other posters above. At 60's and above the hum is there on the rear passenger side. Gets louder the faster I go. I also get the wind tunnel noise assuming from my pano roof. That said, it is still a rather quiet ride. I'm gonna wait to get them fixed at my service appointment in 8000 more miles if I can wait that long.

madbuns | 14 september 2013

I do have the hum (truck-like sound towards back right of vehicle) - but I notice, at least for my car, that the amount of charge influences the speed at which the hum initiates. On a 90% charge, I hear the hum at around 76 and beyond. On a 60% charge, I hear the hum at 70 and beyond. Anything lower than 55%, the hum consistently begins at 68.

I did test on multiple road surfaces (to rule out road noise) and have been able to reproduce my results (imagine us, "testing" our cars - ain't it great to live in such a world)...

I only took delivery a week ago and am assembling a punch list for service. I want a few weeks with Maggie to really get a sense of what is right/wrong before I bring her in...

c.bussert67 | 14 september 2013

I thought I had the hum too. I took my wife for a ride and she noticed the sound was coming from me! I didn't realize I was so happy with my S that I hum as I drive it...
Not going to get that fixed anytime soon:-P

JoeFee | 14 september 2013

@lars.thomsen@fu... | SEPTEMBER 14, 2013 NEW
I picked up my new P85+ yesterday and have the same issue....I also own a P85 Sig that I drove over 12.000 miles both in the US and Europe with no such sound at all. It is totally quiet even at Autobahn speeds above 100 mph. Not the new one. :-(


Had a P85+ loaner vs my Sig P85. Handing is amazing…. but the increased road and motor noise is very noticeable, especially cruising at 75 mph on 90min freeway trip.

cb17 | 14 september 2013

We had the problem and finally got the SC to replace our motor and inverter. It was better but still occasionally heard it.

Then we brought it in to the SC again for an unrelated issue and after they rotated our tires (unprompted), the sound is even better but now I sometimes hear from the front right (instead of the back right like before). So I'm guessing it could a bad tire?

I might bring it back in for service for it soon, but it's barely noticeable now and I doubt the SC would replace it anyways.

mortgagebruce | 15 september 2013


Tesla service caught the first replacement on a road test. I found out when my car was delivered back to me and the Ranger told me because the paperwork showed two replacements. I was told the first was a remanufactured unit and the second brand new.

nav66 | 15 september 2013

I have it to. Same as above. i even tried to isolate it to specific levels of power - seems to kick in at 20kW and above. At first I suspected the 21" Continentals, but it is a constant tone emitted at cruising speeds and does not increase or decrease in pitch. I mentioned it to my wife about a month ago while on a long trip. I told her I didn't recall hearing it before, and I think I would have noticed, because I listen for everything.

AmpedRealtor | 15 september 2013

From what I was told by my local service center, Engineering does not know what is causing the noise. My drive inverter is being shipped back to Engineering for analysis and to figure out how to fix this for future production. I would encourage everyone who has this noise to report it to their service center and discuss the possibility if it being the "drive unit" or "drive inverter". Tesla's engineering group in California sent a special audio recorder to my service center, and after hearing a recording of the noise advised to replace the drive unit.

One thing I would recommend is not accepting a "this is normal" response, as it clearly is not normal.

Bob W | 15 september 2013

Is drone issue at 60+ mph only heard on the P85 and P85+? I have a standard 85, and I have never heard it.

However, I did listen to it carefully while my friend drove his P85. I sat in the back seat while he drove. The noise seemed to be to be coming from his left rear tire. It was definitely louder on the left side of the car (where the motor is).

He had AlloyGators installed, and a small portion of this rim protector (on the left rear tire) was sticking out a bit. I thought that was what could be causing the noise. At 60 mph, a 21" tire is rotating 16 times per second. At 75 mph it's 20 times per second. A 16 Hz - 20 Hz tone is a low rumble. The pitch of the noise varied upwards slightly when he accelerated. But I think it sounded more like a 200-300 Hz drone.

Tesla ended up replacing his entire drive unit under warranty (and fixing the AlloyGator). But they said it was not the AlloyGators that caused the noise.

mlaiken | 15 september 2013

I have had a P85 since early March and have never had the hum. Then my car ended up in the shop for a few weeks and they gave me a P85+ loaner that had the hum. It drove me nuts. Loved the handling of the + but couldn't stand the hum. It completely killed the joy of driving an electric car. Felt like an ICE. So happy to have my car back.

eAdopter | 15 september 2013

I also have the hum, beginning at about 70 mph. I plan to report the issue during the 6000-mile tire rotation visit.

I haven't read all the related posts. Is there consensus that the motor or inverter is the root cause?

sergiyz | 15 september 2013


Definitely the case on P85+.
I had a loaner P85+, and blamed the hum on electronically limited speed (80mph max), but even at lower speeds it's definitely louder than my P85.

Christopher C | 15 september 2013

I have my S85 (not P or P+) nine days and it has the hum as well. Sound appears to start at approx 68 mph on mine.

T3SLA | 15 september 2013

In august 2013, I test drove 2 or 3 different cars. One of the cars had this much louder hum. It was a performance.
I asked the sales person about it and he said they didn't know why some had the hum and some didn't.
I ordered a p85 in July. Delivery in September. Crossing my fingers that it doesn't have the loud hum. If it does, it's going to the service center.

Thomas N. | 15 september 2013

We test drove a P85+ in Newport Beach before committing to ordering. The demo car definitely had a very loud hum during hard acceleration. I noticed it and my wife noticed it. It seemed to die down immediately after the regen kicked in.

We were so thrilled with the acceleration that I didn't even ask about it. It never occurred to me that the hum would STAY on if we continued at that speed.

The hum was so loud that if our car had that sound at 70mph continuously there is no way in hell we'd ever accept that as normal. Ever.

mortgagebruce | 15 september 2013

My car is not a P but is an 85.

@Thomas N - my hum had nothing to do with acceleration it was always there at speed approaching 70MPH and over. Didn't matter if I accelerated easy or hard once the car got to speed the sound was present.

I've only had it back a few days since replacement but the difference is remarkable.

arreefdiver | 15 september 2013

I have it, at 75 mph and above, posted on previous threads. SC changed drive unit twice, still had hum but maybe less loud. They eventually just said it's maybe the suspension and its normal. I had it in for wind noise / pano fix most recently and the loaner P85 had much louder hum than mine, and starting at lower speed, so I decided I'll just live with mine. I agree with others though, us early adopters are maybe more forgiving of flaws but later buyers may not be on a six-figure car.

pdx4s | 15 september 2013

took my P85 yesterday for a drive to Seattle to test it out including the SC at Centralia, the hum appeared above 70mph and was not too high but still noticeable at 75mph, was not there in the first 1/2hr of my trip.

Also noticed some noise from the back side of sun roof area when driving on older pavement of the I-5 sections.

Waiting for few more weeks of driving and see if there are other issues before contacting local service folks.

Brian H | 16 september 2013

A stitch in time ...

SarahsDad | 16 september 2013

I do notice a drone that comes on 68-70MPH with the pitch rising a bit up to 80MPH (haven't tried faster) on my P85+. Can't be sure it's not the tires though - tried to point it out to the wife but she says it sounds "normal" to her.

rkang | 16 september 2013

I have 12,600 miles on the car and just noticed it--it's started to hum a bit. Wasn't there when the car was brand new. I really only notice it when the road is super quiet, I have the radio off, and I'm going 65-70. When I press the accelerator, I can hear the hum get a bit louder. When I go slower, it quiets down.

thranx | 16 september 2013

Most of these comments seem to be from owners of P85's. Any 60's owners getting the hum?

basf_audio | 19 september 2013

Took my S85 into service for a few problems yesterday and this was one of the items on my list. Tesla is replacing the drive inverter to fix the problem. I was getting the noise between 60-80mph - the day I took it into service it was only above 70mph. We'll see if it fixes the issue. At 2500 miles...

jeremythehunt | 19 september 2013

I've had the hum between 40-50mph and over 70 for the past few weeks. It only happens when I'm roughly on the accelerator just enough to maintain speed. If I let off a little or accelerate a lot it goes away. Mine is just a S85.

Rte66 | 19 september 2013

I didn't notice the hum (at 72+ mph) until I put on the front license plate. The plate is in the lower position tied to the grill on not over the nose conde.

I figured it was buzzing caused by the license plate.

Anybody else's noise start with the front license plate?

evcarfan91 | 19 september 2013

Got my car, a standard 85kWh, on Aug 29th, and recently did a 1300-mi trip from SoCal to NorCal and back (via I-5 mostly) and regularly heard the hum. Hum begins north of 65mph and is very noticeable above 70. And being on long stretches of I-5 in Central California at 70+ for hours, the hum was extremely noticeable.

I reported to my local service center this morning in fact (brought the car in for squeaks/rattles we'd noticed on the trip) and they shrugged the hum off and didn't do anything about it.

AmpedRealtor | 19 september 2013

I picked up my car today from the service center, the new driver inverter is silent and I no longer experience the "hum" noise at any speed. Thank you Tesla! :)