I was turning left into a parking lot in dry weather and the anti-lock brakes kicked in when they should not have. I complained about this previously, but was not aware that this should not have happened and my complaint stated that they did not work properly when they came on almost causing a wreck. This has happened several times since, most recently yesterday. I was trying to stop at 8 mph, the ABS came on, they pulled my vehicle to the left, and I have 106,870 miles on her now. My brake pedals is going lower to the floorboard each year and I have been told that this is normal and it cannot be adjusted! my master cylinder is not leaking, nor is my brake fluid at this time. I have had my front calipers replaced twice! I maintain my vehicle and have a lot of money put in my black beauty, with repair records to show for it. I have my children and friends ride with me and do not want to injure/kill them or anyone, myself included! you need to do something about this!

- Portland, OR, USA

Brake lines rupture in emergency situations. Third incident occurred on Nov 2, 2012 and almost resulted in a major accident. Front brake line which runs across front of vehicle ruptured upon braking and pedal went to floor. Delayed stopping because only rear brakes were used to stop vehicle. This is 3rd time brake lines failed all in different areas of undercarriage. Truck will not be driven until all brake lines are replaced and undercarriage is applied with an anti -corrosive, which this will cost approximately $4,000 because of the labor involved in this process. GM has known about this problem and should be responsible for replacing and repairing the defective parts used in original manufacture. This problem should be addressed before someone gets killed due to these faulty brake lines.

- Williston Park, NY, USA