The driver side mirror will not adjust outward far enough to eliminate a blind spot on that side of the vehicle. 9/22/11 tom bannen Chevrolet in madison tn attempted to solve the problem by replacing the mirror, but that resulted in no improvement. 12/8/11 I complained to the dealer again. [xxx], the service writer, sat in my truck, operated the mirror and confirmed that the mirror would not adjust outward far enough to eliminate a blind spot. He said that it was definitely not right, ' and they would check it out to see what repair is needed. But when I picked up the truck, they said it operates like all their other trucks and would make no improvement. 12/10/11 I complained to GM at 866-790-5600. 12/21/11 "district specialist" john (extension 42327) said GM will not do anything to correct the problem and that this is GM's final position on this problem. This defect leaves a blind spot in my view, and that increases the hazard of moving left to change lanes. I am, of course, am not satisfied with this situation. It places me at greater risk than should be necessary when driving my truck. Perhaps other Silverado owners are suffering this same increased risk. Please promptly provide a solution, instruct my dealer on that solution, and notify me. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Old Hickory, TN, USA

Conditions: Heavy misting rain, 32 deg F, lowering temperature, daytime. This is to report a design defect of the windshield defogging system. The defogging system operated as designed. There was no failure of the equipment. When the windshield defogger is selected this vehicles system automatically sets to outside air and turns off the airconditioning compressor at 32 deg F and below. On December 6th while driving during misting rain at slightly above freezing with the temperature slowly lowering I experienced a rapid and serious problem clearing the windshield of mist on the inside surface of the windshield as well as all other glass surfaces when the temperature fell below freezing and the airconditioning compressor cut off. Despite using the windshield defogger at the maximum heat and fan setting I was forced to pull over to the side of the road because I could no longer see well enough to drive safely. Selection of windshield defogging mode actually worsened the problem initially. I believe that the design of the system creates the potential (and in this case actual) danger of rapid loss of visibility to the outside of the vehicle with the possibility of a loss of effective control.

- Texarkana, AR, USA

The defroster stopped working without warning. Within 6-10 seconds max you are unable to see.

- Cookson, OK, USA