Purchased new 05 Envoy XL 12/04. Windshield is so defective it is dififcult to Focus or see clearly to drive. Causes extreme eye strain and headache to the point of being unable to continue to drive. Dealership replaced with another windshield they found at another dealership. It is just as defective. Envoy is extemely difficult to drive because you can't Focus clearly thru windshield. It will make you literally sick to try and drive it it causes inability to Focus clearly, extreme eye strain/pain, migraine headaches, dizziness and no one wants to ride in it because it makes you sick. Dangerous to drive...can't see well. Dealership won't fix. Says they have a memo saying not to fix anymore because they are all defective. We have waited 3months for a rep. To be available. Say they have none to look at it. They are reassigning reps soon to our area. There must be someone for GMC who can fix this dangerous and 'sickening' situation. $40,000+ vehicle and can't drive it. It is so dangerous to drive as you can't see well to Focus it is so distorted. Everything is wavy, out of Focus and hurts your eyes. To try and drive it on a bright, sunny day is almost impossible as the brightness makes the distortion all the worse. I have had to wear three pairs of sunglasses at one time trying to darken it enough to drive on a sunny day.

- Richmond, TX, USA