1999 GMC Sierra 1500: ABS light or ABS activating

Filed Sep 25, 2021 · Brakes · NC

ABS Brakes cut out leaving you with little to no brakes. No warning light appears. This continues on and off over time. Then that ABS warning light came on. When the warning light was on, brakes worked just not ABS. Light would go out and back to the original issue. Took it in to dealership when the light remained on. They reset the light and told me every thing was fine. And charged me $$$. ABS Brake warning light can right back on. Had the manager drive it. Told me it was fine, brakes worked well. The ABS warning would go in and out. Removed the ABS fuse, so I could depend on being able to stop, without having to worry about the ABS cutting in and out for a few years. Watched for recalls, nothing appeared. Noticed on blogs, others were having the same issue. Took it to a great mechanic! Who verified there were no leaks in the brake lines, replaced one line that had been known to have issues on this type of truck and verified there were no air bubbles on the lines. Still same issue, then replaced the computer system for the ABS. No codes ever came up on the computer system that I can recall. Had more issues with the ABS. Would go to stop, (generally on a hill) then when it came to the final stopping, I had NO BRAKES, had to slam on the brakes to stop. ABS Brake warning lights never came on. My mechanic looked and looked and relooked into this. Found from others that blogged that they had similar issues, that one or both of the ABS Brake sensors were not responding evenly causing an issue. Changed out the sensor. All is good now. This issues could have put and my family in danger a number of times. I was blessed to avoid a few accidents by driving far enough behind people and or had an emergency line to pull into when unable to stop. Hope a recall comes soon for these issues to prevent someone from being killed. These took place from about 2015-fixed 2020. Email me with a report number and where I can upload info at a later date, I will do so.

Filed Jan 14, 2017 · Body, Brakes · 60,000 miles · SC

Brake lines rusted , ABS failure ,gas lines rusted, trans cooling lines rusted. These were all failures that needed replacement through the years I have owned it. Now frame rusted and cracked . Truck basically shot .

Filed Jul 14, 2016 · 210,000 miles · OH

Check engine light always on,mechanic cannot turn off..also while driving the ABS warning light comes on for no reason while driving..

Filed Feb 4, 2015 · Brakes · 120,000 miles · WA

Suburban is extremely difficult to stop or will not stop at stop signs. Pedal goes to the floor for emergency stops on highway and going down hills. Brake pedal is very soft. Abs system activates at slow speeds and/or may pull vehicle very hard to the left. The federal safety agency recall issued for this problem only in certain northern states but not in washington state where we have high corrosion from natural ocean air and extreme winter mountain driving with deicers. Though brakes have been repeatedly serviced since new this safety problem persists and is getting worse.

Filed Jun 26, 2012 · Brakes · 192,150 miles · OH

Stopped in my driveway to get newspaper and mail. I got back into the truck and applied the brake to shift into drive. The brake pedal went to the floor. I coasted up the driveway and was able to stop. When I got out of the truck there was a trail of brake fluid. The leak was coming from under the driver's seat area, where the brake line attached to the ABS pump. My mechanic had to replace all of the brake lines.

Filed Jan 4, 2012 · Brakes · 141,084 miles · MI

Brakes failed as I was just leaving the front of my house , tow to garage $65.00 installed all new brake lines from master cylinder to ABS pump and from ABS pump to each wheels flex line cost of $300.49, hazardous materials$10.00,labor $500.00 .

Filed May 15, 2011 · Brakes · 81,000 miles · MI

While driving highway speed (70 MPH) my grandson pressed on the brake to slow down at an exit and lost all but 1/2 in of brake pedal. No accident but barely stopped before an accident occurred. And he is only 17 yrs old and was badly scared.. Repair shop changed the rear brake line from the ABS module to the rear brake connection due to being rusted through. Cost was $451.00. It was also noted that the other 5 brake lines at the ABS module were badly rusted and needed replacement.

Filed Nov 30, 2010 · Brakes, Fuel system · 197,000 miles · OH

Severe corrosion of the brake lines became apparent during a sudden application of the brakes which caused multiple brake lines to rupture and leave the vehicle with no brakes since a line from the master cylinder to the ABS unit front left input and the ABS to the rear t line blew simultaneously. When removing the damaged brake lines they literally crumbled to pieces due to corrosion. During the repair to the brake lines severe corrosion was noted on the fuel lines also.

Filed Nov 9, 2010 · Brakes · 28,746 miles · IA

My truck was parked. I started my truck. I applied the brake to put my truck in gear. The brake pedal went completely down to the floor. I inspected under my truck, and there was a puddle of brake fluid under the driver's side area on the cement. I saw that all the brake lines connected to the ABS electro-hydraulic control unit are severely rusted, and one of them was leaking severely. I had my truck towed home. There was no warning light on the dash that was blinking to tell me I that I was having a problem with my brakes. They were working fine prior to this failure. I will document the condition of the brake lines with a picture and brake mechanic witnesses before any repairs. I am in the process of locating a brake repair business.

Filed Jul 8, 2010 · Brakes · 79,686 miles · PA

Tl*the contact owns a 1999 gmc sierra 1500. While driving approximately 45 MPH the contact applied the brakes and the left front and right rear wheel exploded. He stated that the brake pedal extended to the floor. He carefully drove the vehicle to his residence. The vehicle was towed to the mechanic where it was purchased. The mechanic replaced the both brake lines to the master cylinder and the ABS unit. The failure mileage was 79,686 and the current mileage was 80,058. Updated 08/27/10.*lj updated 08/30/10

Filed May 14, 2009 · Brakes · 78,858 miles · IN

Brake failure due to rusted brake line. A panic stop was attempted to avoid a merging vehicle. The brake pedal went to the floor when the line broke. I was able to avoid the vehicle the remaining fluid and slow speed stopped my vehicle. I have had other problems in the past with the brake pedal being soft and able to go to the floor. But it rebounded and stopped the truck. There is also ABS quirks as well. Vehicle is a 1999 gmc sierra extended cab 3 door 4x4 5.3l 78,000 miles. I found the leak it was inside the frame under the drivers door in a cluster of brake lines attaching to the ABS pump. All of the brake lines in the area were seriously rusted and have to be replaced. The lines aprox. 1 foot from the ABS pump are in good shape. The brake lines seem to be rusted however the frame, underbody floor and other equipment located in the same area are not showing a rust problem. This rust problem should be checked and inspected regularly. I think a stainless steel or other rust resistant material should used in this location.

Filed Nov 25, 2008 · Brakes · NY · crash

Tl*the contact owns a 1999 gmc sierra 1500. While attempting to stop the vehicle at a low rate of speed, the ABS engaged and the vehicle could not be stopped until the brakes were disengaged, engaged, and pumped. On september 4, 2003, at 46,663 miles, the failure occurred, but only one sensor was replaced at that time. On september 20, 2004, at 54,318 miles, the failure recurred and a second sensor was replaced. A recall was issued and the vehicle was repaired accordingly on february 21, 2006, in which both sensors were replaced at 58,869 miles. On march 3, 2006, the contact retrieved the vehicle, but it had been crashed into the wall. The mechanic replaced the front passenger side hub, which was claimed to have caused the crash. The front end of the vehicle was poorly repaired. In march of 2008, the ABS failure recurred and the contact took the vehicle to be repaired again, but was informed that it was no longer under warranty. The contact disconnected the ABS. The current mileage was 95,500 and the failure mileage was unknown.