My insurance company uses Safelite glass. In the case of the MDX, they will install a laminated windshield and full intergrate into the MDX’s system. The company will then fully warranty the installation against any issues (except breakage, of course). Having used Safelite for my Pilot, I have found them to be professional and the work is excellent. Most dealers will outsource windshields…..
In regards to cost, the insurance company offers full glass coverage in addition to comprehensive coverage. Cost for the MDX windshield is app. $975 vs $400 on the Pilot. Probably due to the increased labor to recalibrate the systems.
As I average a new windshield every two years, it was more cost effective to eliminate the glass coverage and get a lower comprehensive deductible as this would cover more of the car and save some dollars.
Of course, within 2 weeks of owning the car, I got a star chip on the passenger side. While the comp coverage would have taken care of this with $0 deductible, I just used a kit to repair it my self without engaging the insurance company. Came out fine.
Insurance companies use several matrix's to rate their customers. One of the key ones is frequency of claims and if you have your home, auto’s and other items with them, they will aggregate this for a total claims history. Something to keep in mind.