Two problems related to wiper have been reported for the 2021 Tesla Model X. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 Tesla Model X based on all problems reported for the 2021 Model X.
Windshield cracked due to defrosting; yes available for inspection upon request. If the windshield shatters due to defrosting this is serious safety risk and what can happen while driving is limited less. Vehicle was inspected by Tesla located in peabody, massachusetts and the representative stated they are aware, and this is why they tell customers to warm the vehicle up before turning on defrosting, in all the vehicles I've owned windshield cracking from defroster being on has never happened or been an issue. Also through research I found other Tesla owners have experienced similar. No there were no warnings of this happening outside of reading other Tesla owners experiencing this similar situation.
There is a windshield defect on my vehicle but check the boards, it is a common problem. The windshield has a mottling defect which is not obvious in normal light but - drive into the sun and suddenly you are blinded. It must be a known situation as the boards report this on many different models. We have owned a prior Tesla x so it is not us getting used to the car, it is a defect.