Now it's happend to me. I do see there is a TSB for this. How did this happen? 17 degree weather with sleet. Had my defrost set to highest heat setting and at 3/4 fan. Lower part of windshield cracked. About 20 inches along the bottom of the windshield.
I admit, when I first saw similar posts, I po-po'd them thinking the windshield or the frames had a factory defect. Well, there is a factory defect for sure. It has to do with the poorly tempored glass.
Am I the only one who thinks this is a safety issue? A TSB is not enough. This warrents a recall!

 

NUMBER: 23-047-06
GROUP: Body
DATE: October 21, 2006

SUBJECT:
Cracked Windshield
MODELS:
2006 - 2007 (CS) Pacifica
2006 - 2007 (DC) Ram Cab & Chassis
2006 - 2007 (DR/DH/D1) Ram Truck
2006 - 2007 (HB) Durango
2007 (HG) Aspen
2006 (TJ) Wrangler/Wrangler Unlimited
2007 (JK) Wrangler/Wrangler Unlimited
2006 (JR) Sebring Convertible/Sebring Sedan/Stratus
Sedan
2007 (JS) Sebring
2007 (KA) Nitro
2006 - 2007 (KJ) Liberty/Cherokee
2006 - 2007 (LE) 300C/300C Touring (International Market)
2006 - 2007 (LX) 300/Magnum/Charger
2007 (MK49) Compass
2006 - 2007 (ND) Dakota
2007 (PM) Caliber
2006 - 2007 (PT) Chrysler PT Cruiser
2006 - 2007 (RS) Town & Country/Caravan
2006 - 2007 (RG) Chrysler Voyager (International Market)
2006 - 2007 (WK) Grand Cherokee
2006 - 2007 (WH) Grand Cherokee (International Market)
2006 - 2007 (XK/XH) Commander
2006 (ZB) Viper
2006 - 2007 (ZH) Crossfire

DISCUSSION:
Windshield cracks caused by an impact from a foreign object; (i.e. stone) are often difficult
to identify. The following assessment should be used to verify the presence of an impact
chip on the crack.
If no obvious impact chip is present, run a ball point pen along the crack and feel for a
slight drop or pit in the glass. If a slight drop or pit in the glass is present, this indicates a
small impact caused the crack. If the molding contains a witness mark or dent from an
impact, inspect under the molding for an impact chip in the same manner.
POLICY:
Cracks caused by an impact are not warrantable.
23-047-06 -2-

 

Yes, I've seen the TSB. My point is that this is wide spread and is a safety issue worthy of a recall

 

I started looking around the web for other manufacturers with this issue. There's no shortage of other makes with defroster induced cracking. All the forums I looked at also pointed out small defects really being the issue. Many of the hits I got on google were repair shops reminding people to fix dings before they get worse. I'm not saying yours didn't spontaneously crack, just pointing out that it's not a jeep phenom. Chrysler is trying to avoid eating a bunch of windshields with small defects. I can't blame them.

 

I could be wrong but I think thats a 'stone thing" not a 'Jeep thing'.
I feel for you but glazing product standards are governed by the manufacturer of the glass and not of the vehicle.
The only time there's an issue with the installation is when there may be a protruberance which is proud enough to contact the glazing material through the depth of the butyl adhesive.
These only occur when there is an improper sheet metal overlap or spot weld within the perimeter of the glazing/body panel footprint.
To make a long story short,get the windshield replaced at a reputable shop and if there is a fitment issue have him/her document the problem with photographs as well as the procedure they used to eliminate the problem from happening again. Take the case to D.C. Customer service.

Then again they might say it's a 'stone thing'.

On a side note...you must have a way better defroster than the rest of us to have this happen in either case.

Wasn't any hot water involved?

 

I completely agree with "no impact cracked windsheild." Mine was only a few months old and sitting in the garage with the dfroster on when the crack started in the middle and cracked upwards 3-4 inches then spread horizontally to both ends of the defroster and back down. All happened within 3-4 minutes. The windsheild was never hit by anything. This could probably repeated with any of our jeeps. I'm not saying a improper glass manufacturing, it had to be damaged under the bottom edge and then spread by the heat. Still haven't taken it in to see if they will replace it under the TSB.

 

That sounds like a candidate for the TSB because you said it starded at the bottom. Could be a proud spot weld. What's the date of manufacture?

 

Follow-up. The dealer agreed this is a warrenty issue. Just like scootrrydr said mine started in the center, went vertical for about 3 inches, and worked its way toward the driver side before going down. All in all the crack is about 20 inches long
This morning I have my defroster on with the jeep in the driveway. I'm watching the frost melt away and notice the first area to clear exactly matches the crack
Jeep dealer service suggested this is happening because of a warm vehicle, (such as one garged), being introduced to the cold. Not in my case, I had scrapped the windshield of ice. I was driving. My Jeep is not garaged. I had been driving for over 20 minutes when this happened.
Dealer said windshield is back ordered. Gee...I wonder why?

 

Yea really, good luck getting a windsheild now, it would be like reordering a whole new Jeep.

I had a chip way on the passenger side and another way over on my side, each were expanded about 3-6 inches. I went out started the Jeep cranked it up, came back out and the two joined each other all the way across. But there is no way Id even try a tsb. But I do need a new one.

 

Glad to hear that Roads....I will be taking mine in soon to see if they will replace mine. Probably after I get back from Moab Safari.