Glass Roof Cracks?

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Skione65

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#1
@KarenRei,

Frustrated that this is what you got out of my post....and NO I as YOU quote don’t “think Tesla just likes fixing glass roofs for fun, so will just ignore it if it becomes a common issue”. YOUR quote not mine.

Therefore my post has been deleted. Thank You.

Ski
 
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KarenRei

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#2
I see in there three reports of glass cracks in a Model 3. There's an estimated 8787 Model 3s on the road today.

If it's a regular issue, there will be a recall issued. If not, there won't.

Your post seem to be presuming that Tesla is not bothering to track repair issues, which is a rather odd presumption. Do you think Tesla likes fixing glass roofs for fun, and so will just ignore it if it happens to be a common issue?
 

TrevP

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#3
Interesting that it's happening only on the middle glass section... Could be anything from body flexing in that area to the glue perhaps shrinking and causing tress..

In any case, because Tesla does all the service work you can bet the information is sent back to Fremont for investigation and correction.
 

SoFlaModel3

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#4
I feel like moving the thread since I wasn’t listed :p

Anyway and all kidding aside, I agree so far small numbers and likely nothing to worry about. We already have people hitting 10,000 miles driven!
 

KarenRei

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#5
Also, it's not unusual that it would tend to break at a particular location. Stress within the glass is not going to be equal in all places.
 
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#6
I also have a crack in my roof/rear glass. Prior to signing my final paperwork at delivery, the Tesla rep pointed it out to me and asked if I still wanted to take the vehicle. He said he already logged it and put in a service request.

I think the issue is more common than people here realize. I heard about this issue when researching window tinting options. The tint shop owner recommended I wait before installing tint on the vehicle.

I took delivery anyway because 1. I sold my other car, 2. I'm confident Tesla will take care of it.
 

m3neko

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#8
IMG_2875.JPG
Above is a photo of the crack on the day I picked up the car. Below is a couple days later. You can see it spreading.

I asked the Rep when signing the final docs if the crack would spread, he said it shouldn't (Saturday). After it started spreading (Monday) , I setup a service appointment for Thursday. The customer support rep on the phone suggested I bring it in that day to get it checked for safety, in case we need to get the car off the road.

At the service center, the service center manager took a quick look and said it's safe to drive. I asked are you sure? I have a baby that might be sitting back there. He said he will double check to confirm its ok, stepped away for a few min, came back and said Yes. its safe. My fingers are crossed it doesn't collapse before my service appointment Thursday. When I asked if he has heard of this happening before, he said "never" then when I brought up my conversation about my tint guy, he said it does happen when dealing with large panels of glass like this and the vehicle body shifts.

I'm a huge Tesla fan, but that service manager seemed a little slippery. I also didn't want to press the issue because I doubt complaining would resolve it faster.

Another thing, I asked how long it would take to repair once the glass arrived, He said a couple days. He said they would give me a loaner but it probably wouldn't be another Tesla.


IMG_2893.JPG
 
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SoFlaModel3

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#9
View attachment 6996
Above is a photo of the crack on the day I picked up the car. Below is a couple days later. You can see it spreading.

I asked the Rep when signing the final docs if the crack would spread, he said it shouldn't (Saturday). After it started spreading (Monday) , I setup a service appointment for Thursday. The customer support rep on the phone suggested I bring it in that day to get it checked for safety, in case we need to get the car off the road.

At the service center, the service center manager took a quick look and said it's safe to drive. I asked are you sure? I have a baby that might be sitting back there. He said he will double check to confirm its ok, stepped away for a few min, came back and said Yes. its safe. My fingers are crossed it doesn't collapse before my service appointment Thursday. When I asked if he has heard of this happening before, he said "never" then when I brought up my conversation about my tint guy, he said it does happen when dealing with large panels of glass like this and the vehicle body shifts.

I'm a huge Tesla fan, but that service manager seemed a little slippery. I also didn't want to press the issue because I doubt complaining would resolve it faster.

Another thing, I asked how long it would take to repair once the glass arrived, He said a couple days. He said they would give me a loaner but it probably wouldn't be another Tesla.


View attachment 6997
I wouldn’t chance that with a kid in the backseat. They should put you in a Model S loaner until the replacement glass arrives.
 

KarenRei

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#10
1) Unsealed, grass cracks will spread. Almost invariably. Sometimes rapidly.

2) It may be surprising, but it does not significantly compromise the glass's structural integrity. It won't just spontaneously crash in.

The first person you talked with didn't know what he was talking about. The second did (either that, or lucked into the correct answer).

The first time I had a windshield crack (it's happened twice to me), I didn't believe the body shop doing the windshield replacement that it would be safe to drive until my appointment (because it just "looks" like it's about to break apart). So I went and searched for more info, and indeed, that's the general consensus: it's fine to drive with a crack. Just get it fixed when you can.
 
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#11
While I believe everything should be OK by Thursday, I want to point out to any other drivers with cracked glass, that there are risks.

1.) if your damaged windshield impairs vision, it is illegal to drive your vehicle in CA and you could be cited:
Per CA Vehicle Code 26710: "It is unlawful to operate any motor vehicle upon a highway when the windshield or rear window is in such a defective condition as to impair the driver’s vision either to the front or rear."

2.) Windshields are also important to the structural integrity of vehicle (provides 25-50% of a vehicles strength) and is important to safety in a collision:


I doubt the Tesla service manager understood this and if he did, that's concerning.
 
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#12
I wouldn’t chance that with a kid in the backseat. They should put you in a Model S loaner until the replacement glass arrives.
Yes, I will not be placing my baby's child seat back there.

About the loaner, it's fine if its not a Tesla. I know they need to be resourceful, especially now. I want them to survive and succeed (I am invested in TSLA).

Also, this may seem like I'm complaining, but I'm in the school of thought where we learn more from our mistakes than successes. We get more direct feedback from our missteps. No reason to brush the truth under the rug. Look into the issue, see if there is a pattern, isolate the problem, then solve it. It's the best long-term strategy. We all make mistakes and have blind spots.
 
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KarenRei

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#13
We're not talking about a window crushed beyond recognition. We're talking about a single hairline crack. It does not hinder driver visibility, and it does not compromise structural integrity.

Just to get a reference, here's the first hit that's not from a glass installer (aka, someone with a vested interest in getting you to come in ASAP):

http://knowhow.napaonline.com/safe-cracked-windshield-knowing-pull/

Structural Integrity

The second indicator that it isn’t safe to drive is when the crack threatens structural integrity. It’s not immediately obvious, but a car’s windshield plays an important role in the structural integrity of the entire vehicle. The glass strengthens the chassis and helps the roof resist being crushed in a rollover or other type of collision.

A small crack in a windshield isn’t enough to significantly impact the strength of the glass. If it’s located in an out-of-the-way spot — such as at the bottom or top — then you can keep driving until you have time to get it repaired. If the crack starts to spider its way across the entire windshield, however, then it becomes a much bigger concern. The same is true if there are multiple cracks or if the cracks are at the very edges of the windshield, where it meets the metal frame holding it in place.
Windshield glass is dual-layer laminated glass - a "glass sandwich", so to speak, with the plastic lamination on the inside. The lamination keeps any broken edges flush fit to each other and still capable of bearing loads. The glass is still functional as a stiffening element. It's only a problem if either the cracking becomes too extensive, or edge cracking that may help facilitate a "popout" of the windshield in an accident.

What's not going to happen is that the windshield would just suddenly cave in. It does need to get fixed, but it's not anything to panic about.
 
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#14
We're not talking about a window crushed beyond recognition. We're talking about a single hairline crack. It does not hinder driver visibility, and it does not compromise structural integrity.

What's not going to happen is that the windshield is just suddenly going to cave in. It does need to get fixed, but it's not anything to panic about.
Your bias is very strong. Do you consider a crack over 12" and going in more than one direction a hairline crack?

Can you say with 100% confidence a window crack will not compromise structural integrity? or is this a hunch? IF your answer is yes, then I've heard all I needed to hear from you.
 

KarenRei

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#15
Do you consider a crack over 12" and going in more than one direction a hairline crack?
Yes. If it looked like this:



That would be a problem. It doesn't. It's not a problem. You're making a mountain out of a molehill.

(Even that above glass isn't going to be crashing down - far from it. It's just increasing the odds of a window popout in an accident. It's also illegal because it obstructs the driver's view)
 
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KarenRei

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#16
I provided a reference. Where's your reference that a single crack that doesn't reach the edges and doesn't obstruct visibility is some sort of imminent danger?

The Service Centre Manager knows what he's talking about. It needs to be replaced, but it's not dangerous as it stands.

(And I have no clue what you mean about glass not being "reported")
 

Vistan

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#17
I was supposed to take delivery on my Model 3 yesterday afternoon in San Diego. Four hours before my appointment, I got a call from the Delivery Specialist saying that while detailing my car for delivery, the techs discovered a "crack" in the glass roof panel over the driver/front passenger area. They had no idea of how or when the crack occurred. They feel it is a safety hazard and the glass must be replaced before delivery. The DS went on to say that a new panel had been ordered and should be shipped down to San Diego overnight for replacement by the San Diego Service Center by tomorrow or Friday. I have a weekend trip scheduled, so delayed delivery until next Monday, the 22nd.
My Model 3 delivery in San Diego was delayed by almost a week because of a cracked glass roof panel. The replacement panel was trucked down from Fremont and installed late last week. I took delivery this past Monday.
As another data point regarding cracked glass panels, I posted the above in this forum in late January. Have had no glass problems since.

Vistan
 

MelindaV

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#18
locking this thread, as deleting multiple un-civil posts did not get it back on a respectful track. in the future, please remember this is a fun place to come and refrain from personal attacks and hostility.
 
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