GMC Sierra abs comes on

Filed Feb 23, 2020 · Brakes · 35,000 miles · SC · crash

My 2017 gmc sierra denali had already been the subject of the recall relating to the brake issue. Shortly after they performed this recall work the brakes began failing at low speed. When driving below 5 MPH, the pedal which suddenly fall and the ABS would trigger. During this time, the car would continue moving with the ABS fully vibrating. Thankfully, my trailer hitch absorb the rear impact against a wall. The problem continued. I then took the truck in for service and they reported that there has been a significant failure rate of the vacuum assist. The dealer replace the vacuum pump and vacuum lines. I'm extremely concerned that this would happen to someone else near an intersection, not just slowly backing into parking spaces. I have contacted gmc by email but still have received no response or acknowledgment of my communications.

Filed Jan 3, 2020 · Brakes · 36,500 miles · UT

Vehicle frequently exhibits loss of braking power. When this occurs, something sounding like the ABS systems is sometimes engaged by the vehicle and other times not. While gm claims braking performance meets federal standards, the braking power is greatly reduced when the hydraulic system is engaged and almost non-existent when neither vacuum pump nor the hydraulic system functions. Even if the braking performance meets federal standards, it creates a dangerous situation when the driver is not expecting a failure. A gmc dealership has admitted there is an issue and recommends replacing the vacuum pump but has been unable to source the parts in over two weeks and has no eta for when the part will be available. Meanwhile the braking power loss condition occurs every time the vehicle is driven. During the first instance, I was towing a travel trailer in stop and go traffic down a 7% grade. Had it not been for the trailer brakes, this could have been catastrophic. The second occurrence involved backing into my driveway and nearly causing a collision because of poor braking performance. Now that I fully aware of the issue, the vehicle is driven sparingly (only when absolutely needed) and with great care. The characterization of this issue by gm as not being a grave safety concern is inaccurate. Their inability to source parts in a timely manner is inexcusable.

Filed Feb 5, 2016 · Airbags, Brakes · 154,000 miles · WI

I have a 2004 gmc sierra and all of a sudden my airbag light and ABS light came on took it in to have it looked and the airbags are not communicating with the sensor and they would have to go more in depth on the ABS but to go more in depth they charge $80.00 an hour just to be able to figure it out. I have seen similar responses on the airbag light for this vehicle please help.

Filed Jan 5, 2016 · Acceleration, Engine · 100,000 miles · WA

The tbs goes out. Putting the truck into reduced power. I was going 65 MPH and the truck slowed down to 15 MPH on the freeway. Lose all breaks control , ABS goes out to. Almost have been due to gm

Filed Dec 21, 2015 · Brakes · 250,000 miles · DE · crash

05068a product safety recall front wheel speed sensor corrosion. My vehicle was serviced for this recall in 2006 which involved removing and cleaning the ABS sensor and reinstalling it. No redesign was created to improve this flawed design. I'm having the same failures described and covered in this recall. While moving at slow speeds in dry conditions ABS kicks in and increases my stopping distance. I hit a parked car in a parking lot due to this defect. My vehicle was in motion at <5mph on dry pavement when the breaks went into 'ABS mode' and hit a stationary parked car. Luckily no one was hurt. When I contacted gmc I was told that this would not be covered under the recall because it was already serviced for this recall in 2006 and that the issue was therefore closed. In my case the original recall was not adequate and my car breaks still failed even though serviced in 2006. I hope this doesn't start to occur with all of the vehicles that were serviced ~10 years ago which is why I'm filing this complaint. Link to recall: http://www-odi.the federal safety agency.dot.gov/acms/cs/jaxrs/download/doc/acm5671334/rcrit-05v379-9258.pdf

Filed Jul 21, 2015 · Brakes · 116,301 miles · IL

Left house and ABS brake light came on, shut the truck off and ABS brake pump under truck would not stop running even with key off. So had to take fuse out. At that time I drove back home, but if you push down on brake it will go to the floor. June 2014 had truck in shop to have all brake lines replaced and fixed at auffenberg in carbondale illinois due to brakes all of a sudden going out and all lines rusted and now 2,500 miles later this happens also the emgerency brake is not working either. So was there more damage done from all this that should be on recall and us not paying the bill for these defects.

Filed Mar 20, 2015 · Brakes · 105,000 miles · IN

Tl* the contact owns a 2001 gmc sierra. The contact stated that while attempting to stop, the ABS failed and the vehicle started to pull to the right. The contact determined that the cause of the failure was a defective wheel speed sensor. The VIN was not affected by the federal safety agency campaign number: 05v379000 (service brakes, hydraulic). The manufacturer was not made aware of the problem. The vehicle was not repaired. The failure mileage was 105,000. ...updated 06-11-15 *bf updated 11/23/2015

Filed Jan 14, 2015 · Driver assistance · 50,000 miles · OH

I am having serious problems with the stabilitrak electronic stability control system. Whenever it gets cold ( below approx. 38 degrees) the stabilitrak system malfunctions. Even if I turn it off it still affects the performance of the engine (low speed, engine hesitating). The truck runs fine in warmer weather just craps out when its cold. I see that there are many other instances of distressed drivers who are having their 'trac ' 'stab, ABS light and engine lights either going on one at a time or simultaneously because of this system. This is a stupid system that needs to be redesigned or eliminated all together. In any event I don't feel as though I should be the one to pay for the manufactures mistakes in design.

Filed Jan 11, 2015 · Brakes · 79,200 miles · TN

Driving on west stone drive kingsport, tn, a vehicle cut me off trying to get thru a traffic light, I locked my brakes down hard as I could, I could feel the ABS system working, I was able to stop about 12 inches from the other vehicle. When I pulled out after the light changed to green, I was traveling down a slight grade, depressing my brake pedal lightly, the pedal went all way to the floor board.. I took the truck to a local shop to have it checked, one of the brake lines behind left front wheel had ruptured. When the mechanic started the repairs, he called said all lines on this truck were extremely rusty, (he asked what I wanted to do) I said fix it right. In making the repairs all lines were replaced.. I have pictures of all lines that can be sent. I also have all of the brake lines that can be looked at and or analyzed.

Filed Sep 12, 2014 · Brakes · 78,000 miles · OH · crash

Tl* the contact owns a 2007 gmc sierra. While driving 55 MPH, the brake pedal failed to respond when it was depressed and the ABS indicator illuminated. The contact discovered that there was no brake fluid in the reservoir and the brakes were rusted. The vehicle was taken to the dealer for diagnostic testing, but was not repaired. The manufacturer was not notified of the failure. The failure mileage was 78,000. Updated 10/10/14*cn the consumer stated upon depressing the brake pedal the vehicle slowed, but the pedal went to the floor. The driver made a right turn at 35 MPH and slid into gravel almost hitting a guardrail. The manufacturer stated they haven't received any similar complaints. The consumer has heard otherwise from various mechanics. The vehicle was repaired. Updated 3/31/2015