Originally Posted by IH84DZ
I get a kick out of those who assume this is a defect. It happened across multiple vehicle lines and is concentrated in a particular area. It's obviously environment related and whether or not its a temp issue or a "rock" traction aid issue is TBD.
Also, Canada isn't the only cold place in North America so the lack of instances elsewhere make it hard to associate with cold.
I'd like to know how a defect in glass material, construction and sunroof mechanism design spans multiple vehicle lines
I'd also like to know why this wouldn't be an insurance issue
If anything it would be a supplier issue. I won't claim to know where every manufacturer gets their glass from, and if they use multiple suppliers, however it seems plausible that a supplier released some poor quality glass that ended up in several manufacturer's vehicles.