NHTSA Complaint #11444000 — 2005 GMC ENVOY

I purchased my envoy from a used car lot with no warning lights and no apparent safety concerns about 2 yrs ago other then what appeared to be a replaced front bumper cover and the vehicle was repainted the same color white, since then the brakes have intermittently not disengaged on one side or the other I believe it's the front brakes and seems to be worse after a longer drives and after bleeding the system the pedal would be firm and next day spongy feeling and going down rather far. Air bags did not deploy apon impact. It is available for inspiration although I am attempting to repair it after my accident the brakes are still as they were. I have tried both on as well as performance pads and rotors booster check valve and fluid replacement with no change. I was coming back from my daughter's dentist appointment it is 20 minutes away the roads were very slick with snow and sleet, I got off the hwy and coming through town I braked to slow from 45 to 35mph before crossing the intersection when I let off the brake the left side stayed engaged enough to cause the vehicle to pull to the left and I couldn't steer straight because of the snow and was forced to hit 2 traffic light posts in the center median. Usually on dry roads I can tap the pedal and keep it straight until the brakes released. I first noticed it changing pads when I 1st purchased it that the front tires spin harder while jaked up and when it continued I figured it was alignment or steering components worn but even after parts replaced a 2 alignments nothing changed, after my last alignment the technician said the brakes need to be bled and I told him the issue he was unsure the cause. I did not have any air bags deploy in this accident and the sensors were clearly effected as the bumper caved in the center. The vehicle also has had uneven ride height due to independent sensors in the rear. The vehicle now has a service airbag and service brakes light. Other owners have similar issues with their envoys