My 2015 Silverado was purchased new and around October 2023 the trailer brake service warning started popping up. I was concerned with pulling any sort of trailer that my safety would be at risk, and also the constant noise as a distraction. I have taken to dealer for inspection, but nothing was able to be done at the time. No other warnings or symptoms have appeared. Just the trailer brake service continually going off. Thanks.

- Hudson Oaks, TX, USA

Brakes are hard at low speeds

- Chincoteague , VA, USA

Brakes fail at low speeds, or cruising in to a parking lot

- Jonesboro , TN, USA

While backing up on an incline the brakes stop working and pedal vibrates like abs is kicking in. Have to use e brake to stop

- Louisville, KY, USA

As I was driving, the brakes got all Smashy the pedal locked and the brakes started grinding. I couldn-??t stop the truck anymore. I couldn-??t do absolutely anything I had to stop and hit a divider from a parking structure to be able to stop my truck. My truck is a 2015 Chevy Silverado, I do maintenance all the time I almost took out four cars and injured. These people along with myself. This is uncalled for something is wrong with my brakes. I took a video right after and you see on the video how the brake is just stuck it won-??t even go in or anything you hear, a marshmallow sound you feel the grinding it-??s horrible.

- Riverside, CA, USA

#1- I had my truck in a few years ago for a brake issues that they said was a computer reprogramming issue and vacuum pump. They repaired and the issue slowly came back. Now it feels as if there is little to no assist with braking and stopping distance is growing. I feel like my family is at risk if there were ever to be a time I need to brake hard or fast. Theire are no warning lamps but obvious excessive braking effort and can feel the brake rotors through the pedal. #2- Intermittently, at low speeds, pulling into parking lots and parking spaces while turning the steering wheel, electrical power cuts out, steering wheel jerks out of hand, and a dash light comes on saying "service stabilitrack". This is a huge safety issue that could certainly cause an accident. I have Googled this very common issue with my year Chevy Silverado and personally checked the grounds on the left and right under the front dash panel by each speaker and found them to be clean and tight. This leads me to believe it is something else and electrical and a huge safety problem. Only issue is that it is very random and hard to replicate. Seems to happen on hot days when I've been driving a lot. I just got off the phone with the local dealership and they are saying there are no other recalls aside from the current one for air bag issues which I just scheduled. But these other issues I feel are definitely safety manufacturer defects/issues especially being that it has been in for the brake issue once already and the steering/electrical issue is such a common thing when searching the internet.

- Florence, AZ, USA

The power assist for the brakes intermittently goes out and does not work, typically happens at low speed like when parking. The most recent time this started happening a -??brake assist-?? notification appeared on my dashboard. This is a safety concern. I see a recall for my model and year, but when I inquired was told my VIN was not covered. The existing recall number that I believe should be expanded to cover my VIN is recall number N192268490 and is also listed as NHSTA campaign numbers 19V645 and 20V603. Please look into this and expand the recall to cover my vehicle and others that should be covered for this safety defect.

- Macedonia , OH, USA

When backing slowly down a ramp with a boat attached the brakes feel like they are not holding. Feels like I'm going to be in the water with the boat. In drive the brakes work just fine. Only when going down a ramp with the boat it feels like the brake is down as far as it will go and fading or out of pressure. This happened a couple times before this in June and July. Then I replaced the front brakes. First time I backed the boat in after brake change it still happened. I feel the power booster or something else is bad. It's just weird it is only in reverse at slow speeds.

- Algonquin , IL, USA

-??Service trailer brake system-?? this message randomly appears with no trailer connected at all, i recently bought a brand new trailer and im scared to tow it since there is no current fix for this error message on the display, it comes on randomly and will not stop popping up and dinging it is a huge distraction as it repeatedly does it over and over, also when it does this you lose trailer brakes which is very unsafe especially in the mountains. This has been a known issue for years that is why i don-??t understand why there is only a fix for the 22-23 models. Gm needs to address this issue as there are tons and tons of complaints, it is never safe to lose trailer brakes especially with all that weight you could burn up the truck brakes and cause an accident or if the trailer starts swaying you can not correct it with the breaks

- Brook Park, OH, USA

Truck often while driving getting a "Service Trailer Brake System" message, that is a safety-critical defect, and in my case, a defective wire harness

- Fairmount City, PA, USA

Trailer Brake System, needs service light keeps coming on. Have had this issue with this vehicle since I purchased new in 2015. Have had this issue checked by dealer several times and they always tell me unable to duplicate customers issue on my service invoice. The service light will come on and an audible alert will sound for a few seconds and then go off and come back on. Apparently this is an ongoing issue with GM products, have talked to other Chevrolet owners who have experienced same issue and several GM forums have this issue as a priority topic.

- Cynthiana, KY, USA

2015 Chevy Silverado LTZ 5.3L. 81.2k miles. After not driving the vehicle for four days while away on a work trip, the very first trip out of the garage, the brakes became extremely difficult to press and stop. Originally, it occurred at low speeds, but it persists at all speeds now.

- Billings, MT, USA

Low speed braking. No warning lamps or messages. When creeping forward and then applying brake boost is lost. Intermittent so the driver may not be able to anticipate when braking will change.

- Jericho, VT, USA

Randomly the brakes get stiff, even while on a hill or stop and go traffic. I noticed the first time after first buying it that while on an exit driveway at a decline, the brakes felt like they slipped or went away. I had to push them hard all the way down and thought I was going to roll into oncoming traffic. The truck soon after was making a noise and felt like it was losing power and revving after the keg was taken out and loss of gas mileage. The dealership confirmed the brakes vacuum pump and the high pressure fuel pump were both bad and the gas was leaking into the oil causing problems and possibly ruining the engine, they stated both would need to be replaced. Check engine light comes on soon after fresh oil changes everytime and codes were shown on computer for running rich. No codes after the initial oil changes due to the warning lights appearing after a good amount of gas has leaked into the oil.

- Tallahassee, FL, USA

I recently brought my 2015 Silverado in to the local dealership to fix the -€œincreased brake pedal effort-€ recall. The dealership reprogrammed the brake control module but the problem still persists. Yesterday 03/07/23 I experienced loss of brake power in interstate traffic while traveling at low speed. This happened several times and it is very concerning. I believe the GM vacuum pump is faulty and I will contact the dealership about replacing it.

- San Marcos, TX, USA

Inability to brake at low speeds. Brake vacuum pump failing at 100K miles. I can submit photos and report later.

- Chandler, AZ, USA

While driving at low speeds (approx 5-10 mph) the brake pedal became stiff and very difficult to stop. This issue happened with no prior warning or indication of the issue. As a result of this issue severe damage to personal property housing and vehicles was nearly missed. Upon research this has been a common issue for GM vehicles specifically trucks and SUVs.

- Bakersfield, CA, USA

Anytime I pull into the parking lot and I have to pump my brakes more than once the brake pedal stiffens up and the truck does not stop it has almost caused a collision and almost went through the window of a business it is to the point where every single time I drive it does this from what I heard it is the vacuum pump it does not provide enough vacuum for the brake booster so the brakes do not work it cost about $250 for the OEM part and that is not guaranteed to work the problem will persist later on down the road after more mileage put on the truck

- Grantsville , UT, USA

I constantly get a trailer assist brake service warning dinging. I have video. I paid for a tech to fix it but it still dings. I fear the brakes will be affected since it says "Service Trailer Brake System." System has not been inspected by Dealer because they told me it could take 6 months to get it in due to high volume of repairs on books and low inventory. This started in 2021 and stopped after I paid a tech to fix it for about 6 months but started repeating the problem again in 2022.

- Memphis, TN, USA

At slow speeds the brake pedal gets hard and does not stop vehicle. At random times I temporarily lose power steering and vehicle is hard to turn.

- Fort Worth, TX, USA