On July 18, 2022 my trailer brakes suddenly stopped functioning ( a few hours from home) Not only did did the trailer brakes stop functioning, but this warning message didn't popped up just one time, it kept coming again and again and again and again, relentlessy chiming and distracting me from driving. it covered my speedometer readout. it prevented me from receiving or making voice commands. the service warning chime also prevented the turn signal from functioning. So for a full 4 hours I was constantly reminded and was unable to receive calls or make voice commands. i absolutely wont hesitate to say the vehicle was not safe to drive in that condition. your vehicle's defect endangered my life. I will not hesitate to say your vehicle was not safe to drive in that condition. Your vehicles defect endangered my life! Lastly, my vehicle did not want to start the next morning!!
2015 GMC Sierra 1500 brakes complaints
Page 3 of 9: complaints 41 to 70 of 229, newest first, as owners wrote them.
My truck has just over 54,000 miles on it. I bought it new and have treated it well. It's my "Sunday" truck. Without warning, yesterday while carrying my wife to a doctor's appointment, as I pulled into a parking space to park ... I had almost no brakes. I actually jumped on the emergency brake to aid me in getting stopped. After my wife had gone in for her appointment, I slowly moved the truck around the open areas of the parking lot trying to figure out what the problem was. I checked the brake fluid, looked to make sure I hadn't lost a brake pad or something else weird and found that everything was good. What I did find though was that the only time the truck had any issue was when I was moving under maybe 4 or 5 mph. And in fairness ... I discovered the truck did have some tiny (but I do mean tiny) amount of braking ability at that low speed, but to say that the experience was unnerving would be a terrible understatement. Had someone been standing between me and the vehicle I was parking in front of when I experienced this, there is absolutely no doubt in my mind that I would have pinned them between our vehicles, or God forbid, something worse. I don't know what's going on here, but there's definitely something going on with the brake system at low speed on this GMC.
Trailer brake service alarm. Replaced module under stair tire and dash board. Still in alarm, internet says it’s a common problem with wiring harness failure. Many others have some problem.
I keep getting a dashboard warning saying "service trailer brake system". from what i have found, this is due to an inexpensive wiring harness being used. It's very distracting and even if i dismiss the error, it keeps coming back up.
Was driving in a parking lot. When driving slow My brakes got stiff and I couldn’t stop it was so stiff it didn’t want to stop I had my kids and wife. Scary and unsafe. Told GMC there was a recall they said it was already fixed with my situation. But just cuz you see on the computer it doesn’t mean it’s fixed. So they said I got to pay but it’s in a recall already but properly not reboot right.
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Unknown
The brake pedal gets hard to push down when slowing down and especially when backing up slowly. After looking into some things I'm pretty sure the problem is with the vacuum pump.
at first my brakes began locking up on the vehicle, almost as if they were pumped full and not able to press down any longer, shortly after that the stabilitrack light came on and white smoke began to come out of the exhaust as well as a slight shake in the engine, i immediately turned the vehicle off and parked it, mind you i bought the vehicle 1 day ago and it is already broke down, the issue is with gmc and these sensors they are using they are faulty engine reduces speed and it is not safe to say the least.not only that but had the exact same problems with my Gmc Acadia which i finally got the light to stop going off after replacing transmission, brake pedal position censor, as well as gas pedal position censor, also had the throttle body replaced, Do you all make products that are worth anything, nothing was ever done about the Acadia, the Gmc sierra is a 2015 with 70,000 miles on it this car should not be acting like this please contact me at [XXX] thank you so much for your time, also there are 14 recalls on this year truck yet mine shows that there are 0 recalls to be fixed I am wondering about this as well. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Service Trailer Brake Brake System error keeps flashing.
The component that malfunctioned is the vehicle braking system at slow speeds. I first experienced the problem at a restaurant drive thru line. After several stops as the line advanced, the braking system failed (extremely hard pedal) and car kept advancing and if someone would have been directly in front of me ( at a normal distance for a drive thru ) I would have made contact with them at a slow speed. I checked with my dealer the next day and they said that there were no reported problems for this issue on my vehicle. No warning lamps or messages present but it seems to me to be similar to the recall ( N192268490 ) as it only happens at slow speed with repeated application of the brake. There were no symptoms of the problem prior to this incident and it took me completely by surprise. I took the vehicle in to a service facility and they test drove it and said that they did not recreate the failure but I believe that they didn't try repeated braking at slow speed as I requested. I feel that there is a problem and that it only shows up during the aforementioned driving conditions. I have checked your website and the manufacturers and my truck VIN doesn't show up for their computer reprogramming recall but think that maybe it should.
Trailer Brake system warning continues to pop up on my dash along with the chimes. Not sure if this will affect my braking or not, but I pull a 32' camper and am continually concerned about this warning. It happens randomly not just when towing a camper. It has been in to a GMC dealer and they say nothing can be done about it due to no recalls.
Alert of “service trailer brake system” keeps beeping and alerting many times while driving
The first issue is popping coming from the front end of the vehicle causing a steering issue. This has been "repaired" multiple times with no resolution. Every time the popping occurs which is almost every turn the steering wheel will not turn. The next issue is the radio is causing driver distraction by changing stations and screens not just on the display itself but the instrument cluster as well. The radio has been replaced once due to the fact it was on backorder for 6 months another attempt has not been made. The third issue is the brakes have failed at slow speeds no warning lights were on, they just stopped working in the Mcdonald's drive-through. I had to get out of line to keep from rear-ending the person in front of me. Now, after that experience, the ABS light has come on and the service StabiliTrak flashes on the dash as well as parking assist off, everytime I hit the brakes. .
Brakes do not work under slow speeds. Pumping breaks at slow speeds (parking lot speeds) causes break pedal to stiffen and the vehicle's breaks are not responsive. When this happens, I feel what seems to be ABS engaging (break pedal pulsates). The pulsating is only noticable in the break pedal. This behavior seems more prevalent in inclement weather.
The contact owns a 2015 GMC Sierra. The contact stated that while driving in stop and go traffic and attempting to depress the brake pedal, the vehicle failed to stop as anticipated instead the vehicle slid into the vehicle in front of them. The brake pedal began to vibrate and a skipping. The vehicle ended up crashing into the rear of the vehicle in front. The air bags did not deploy. A police report was filed. There were no injuries and no medical attention was needed. The vehicle was not towed. The contact took the vehicle to the dealer who were unable to identify the cause for the failure. The vehicle's alternator shocks, braking pump lines, and updated the computer system however, the failure persisted. The contact stated that whenever the brake pedal was depressed several electrical issues would occur like with the navigation screen and all windows would shut off. There were many warning lights including the air bag and stability control. The manufacturer was made aware of the failure. The approximate failure mileage 80,000.
Brakes becomes hard when backing up at very low speed and sometimes it feel like the anti lock brake is activated. Usually happen when backing up
Whenever I connect a trailer to my vehicle I will lose all brake pressure when in reverse. It only happens when in reverse and connected to a trailer. I will have to pump my brakes to the floor and there's no braking power. This does not happen when I do not have a trailer connected.
I was towing a camper down Rt 422 in Butler, PA in my GMC truck when it suddenly caught fire. My wife was following me and alerted me to pull over as quickly as possible. I had no brakes and the gear shifter went straight up without shifting. The doors would also not open while the truck was filling with smoke. I got out using the manual unlock knob and am lucky to be alive. We had about one minute to try to extinguish the flames before it fully engulfed both my truck and camper. I filed a complaint with GMC. By what I am reading online there are many instances of fires and GMC does not seem to provide assistance. This is very unnerving and scary to say the least. I am sad and angry for this situation. This happened through no fault of my own and I lost absolutely everything. I was in the middle of moving to start a new job and lost many work items in my truck as well. I had to delay my start date for work. Now I am responsible for deductables, insurance increases and other items not covered by my insurance. Now I have to buy a new vehicle and camper but what will GMC do to help me? Probably nothing.
While going slowly and turning, my brakes failed to stop me. There was no pressure for the brakes. This happened several times. I almost ran into the back of a car.
Waiting in line a costco gas station had my foot on the brake pedal all of a sudden the brake pedal got hard and the truck will not stop almost hit the vehicle in front of me
At low speeds after pumping brakes I have no brake pressure and cannot stop. Pedal bottoms out. Once I start moving again brakes come back again.
My brake assist service light came on in my truck and the brakes are acting weird at low speeds. I know there is already a recall for this in 2015 gmc sierra's but apparently mine isn't included. This is apparently a problem for all 2015 gmc's so how do I get mine included. I already contacted my local gm dealer and they won't do anything about it unless I pay for it. It's obviously a known problem and a bigger problem than they are admitting. Help me get all 2015 gmc on the recall list before someone else gets hurt or killed
Vacuum issue with brakes. Backing up vehicle with utility trailer when brake pedal is pressed their is hesitation and lack of ease when pressing pedal. Then if press pedal after that there is no movement and pedal is like pushing rock with foot, no softness, no movement all. Have noticed this occasionally for the past 8 or 10 months before finding this place here to note my issue
At low speeds the brake pedal is non-responsive and pulses while making a noise. It has happen twice, once in a drive thru and another time backing out of a parking spot. Appears to be a vacuum assist issue. Once the truck was place in neutral and the RPM's were increased the issue went away
Supposedly the brakes have been fixed for the recall, however, if I am driving as low speeds like in a parking lot, the ABS will kick in causing me to not come to a stop when needed. I have almost hit several vehicles due to this issue. I have issues with the radio working, specifically being able to adjust the sound level. I have issues with the mirrors being able to move like they should. Both of the electrical issues are permanent, it does not matter if I am parked or driving, they do not work at all. This is by far the worst vehicle I have ever purchased. The brakes have been occurring for years and there was no change when it was brought in for the recall. The most recent issue is now my evap system needs to be fixed. I can only imagine what that will cost to fix on a vehicle that only has 100,000 miles on it. Can't wait to get that bill!
Backing out of my driveway in reverse applied the brakes and brake went all the way to the floor and did not stop the vehicle like it should. This vehicle had a recall already on it for the vacuum pump failing causing a loss of braking power. I got the recall remedied ( supposedly by increasing the vacuum pressure but now 6 to 7 months later this is a huge issue it is extremely dangerous driving in low speeds down residential areas with kids playing etc and your brakes fail you this ultimately can cause very serious injury if not death. And to know they put a recall out that supposedly fixes the issue and it dosent fix anything makes it worse because your cheap and dont want to replace a vacuum pump is utterly disturbing and disgusting
My truck still has the hard braking issue even though the recall has been performed. I received a second letter and took it back into the dealer and they said the reprogram had already been performed and that was all they could do. I had it at the mechanic for service and was told I was going to need a new brake vacuum. He experienced the same hard breaking issue when he was test driving it. I travel and drive my truck a lot and makes me very nervous this is going to cause an accident.
Low speed brake failure. Creeping up to a stop sign and and not being able to stop due to brakes being hard to push. There was a recall for this exact problem but when the dealer typed in my VIN # the decal wasn't listed.
In slow traffic today I almost slammed into the back of a car! The brake pedal went to the floor,and had a shutter feelin terrible!! This is scary and needs recalled now!! I heard it was but came up no with my VIN#?? But my year is supposed to be recalled...this needs fixed im not happy after today..
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