Brake Light On problems of the 2004 GMC Sierra 1500

The contact owns a 2004 GMC Sierra 1500. The contact stated while driving 45 mph a deer suddenly jumped in the middle of the street. The contact immediately depressed the brake pedal but they extended to the floor and failed to stop the vehicle. Immediately following the failure the brake light illuminated. The vehicle was taken to the dealer for diagnostic testing. The dealer stated the entire brake line needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was repaired. The failure mileage was 118,000.

I was backing out of my garage when suddenly the brake pedal went to the floor. After the brake pedal went to the floor the abs brake warning light and service brakes light came on. I was able to push down on the emergency brake pedal before striking my other truck which was parked behind me. Being somewhat mechanically inclined, I saw a line of brake fluid on the ground in front of the truck extending beneath it. I looked underneath the truck, almost directly below the drivers seat and saw a bundle of steel brake lines that were nothing but a solid mass of rust and dripping brake fluid! the rusting is so bad that I can't tell whether it's one or all of the brake lines rusted through! since I'm retired (and don't have to drive in bad weather) and have another older truck I drive most of the time, the GMC has rarely seen bad weather (I purchased it new) and when it did it was always pressure washed (underneath) at the car wash immediately after the snow or ice had ended! my brother who is a mechanic recently had to replace all the rusted brakes lines on a 2005 chevy truck.

Brakes worked perfectly to stop vehicle on a steep downward hill in order to open a gate at the bottom of the hill of my driveway. After the gate was opened the vehicle proceeded down the hill coasting and there was a total break failure when trying to slow down. The pedal went to the floor with no brakes whatsoever. The vehicle crashed into a tree to avoid going over a cliff. The vehicle has been well maintained with no warning of brake failure. Front and rear breaks failed at the same time. No warning brake light indicator on dash ever went on. This occurred on my property and driver and a passenger were both injured. Body shop indicated that the brake lines rusted out. This could have been a fatality if the failure took place on the road.

I have a 2004 GMC Sierra 1500 z71 pick up and the abs and check brake lights keep coming on and off. After taken in to shop (dealer) they could not find any fault codes finally late 2008 I had it looked at by a local shop and they believe it is a bad card . Some times it wont go off for months and other times it is none stop.