Pressure crack on Windshield at -16F

[twodogsdennis]

Update Thursday: I appreciate all of the comments, and I had a good idea that things would turn out as they have thus far. I spoke with the dealership today and the service manager traced the crack nearly the full width of the windshield and thought there was a chip that would prevent Ford from standing behind their glass. We couldn't see a chip, but something snagged his pen. Unless we always drive in reverse, there is bound to be a "chip" in the windshield. The service manager knows how picky the company is when it comes to warranty work in general and glass in particular, but gave me a number to call at Ford. The first person to answer couldn't help, so she sent me to a second person who told me that the dealership should know how to file a claim but promised to submit my comments.

Reps like these two at Ford often have a place on their screen to write a client's comments, which most of the time is used to report nasty remarks made by the client. I always ask the rep to write down my comments since these usually go up the chain of command. I love my Lightning Pro for many reasons, but the infrastructure behind the product is often an embarrassment for a company that's been in business for over 100 years. Two concerns, owners should be given more control over the preconditioning mode. Today, because of the mild temps I could hardly hear the fan motor when I got in the truck. Last Monday, the fan could have moved paper on the dash as it was running hot and at full speed. Secondly, if a dealer has a high rating, and I believe mine does the tech should be able to submit a claim without having to ship the entire windshield to Ford for microscopic examination. I'm not angry, just annoyed. In my experience, GM and Mazda has nearly the same reputation so we are not alone as Ford owners.

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[Ddefazio]

Update Thursday: I appreciate all of the comments, and I had a good idea that things would turn out as they have thus far. I spoke with the dealership today and the service manager traced the crack nearly the full width of the windshield and thought there was a chip that would prevent Ford from standing behind their glass. We couldn't see a chip, but something snagged his pen. Unless we always drive in reverse, there is bound to be a "chip" in the windshield. The service manager knows how picky the company is when it comes to warranty work in general and glass in particular, but gave me a number to call at Ford. The first person to answer couldn't help, so she sent me to a second person who told me that the dealership should know how to file a claim but promised to submit my comments.

Reps like these two at Ford often have a place on their screen to write a client's comments, which most of the time is used to report nasty remarks made by the client. I always ask the rep to write down my comments since these usually go up the chain of command. I love my Lightning Pro for many reasons, but the infrastructure behind the product is often an embarrassment for a company that's been in business for over 100 years. Two concerns, owners should be given more control over the preconditioning mode. Today, because of the mild temps I could hardly hear the fan motor when I got in the truck. Last Monday, the fan could have moved paper on the dash as it was running hot and at full speed. Secondly, if a dealer has a high rating, and I believe mine does the tech should be able to submit a claim without having to ship the entire windshield to Ford for microscopic examination. I'm not angry, just annoyed. In my experience, GM and Mazda has nearly the same reputation so we are not alone as Ford owners.

I had the same issue just a few days ago. Been nearly 0 degrees at night and not above 20 for the last couple weeks.
Last Sunday night/Monday we had a long durations storm.
My truck was covered in about 3" of snow and a layer of ice on top. I started my vehicle and put on Max defrost and proceed to finish clearing driveway.
I cleared snow off truck, didnt notice anything. I got into vehicle to turn it off. and noticed a BIG "U" shaped crack started at top of window down to nearly the bottom and circled around and back up to top. It was on both sides of the rear view mirror mount.
My windshield didn't have any detectable chips that I ever noticed.
I called my dealer and the said it was not covered by warranty even the extended plan I have.
They also said they never heard of this happening before.
I was able to get a replacement through my insurance.
Though it was a big pain. I had to get a uber to get a ride to and from the glass replacement shop, and it took ALL DAY. literally. I dropped it off at 7:30am and it still was not finished at 5pm as they stated it would be.

But in over 40 years of driving and living in this area, I have never had a windshield crack from defrosting.
I also have a Ford Explorer, that I turned on the max defrost as well and it was fine.

I'm disappointed .