general problems of the 2015 Chevrolet Silverado 1500 - part 2

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.

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.

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.

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.

I recently brought my 2015 silverado in to the local dealership to fix the “increased 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.

I was backing up at low speed after a 25 minute drive and went to stop, pushed brake pedal and it was hard and didn’t slow the vehicle. I stood on the pedal to stop from backing through my garage door and wheels made a dragging sound and stopped. Put it in drive to check the brakes and same thing happed, brakes hard and no stopping power. Put truck in park and shut it off. Started it back up and brakes were fine.

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.

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.

Losing power brakes at low speeds. Narrowly avoided rear-end collision.

The vacuum in the braking system failed and would not stop the vehicle especially after going over 1500 rpm the vehicle would stop, but if you had to brake without being able to go above 1500rpm the brakes failed. You had yo put a lot of pressure on the brake pedal to slow it down and stop. When you have a hill to go down it could be very dangerous. Taking the vehicle on 11/15/22 to kendall chev I'm marysville, wa. No warnings were given on brake problem. Since truck will not stop normally, any person, vehicle, bike, etc is in danger of being in front of truck because of brakes failing.

The contact owns a 2015 Chevrolet Silverado 1500. The contact stated while driving approximately 15 mph, the brake pedal was depressed and failed to respond. The contact stated that the vehicle then stalled. No warning lights were illuminated. The vehicle was towed to an independent mechanic to be diagnosed. The contact was informed that the vacuum pump needed to be replaced. The vehicle remained at the independent mechanic awaiting the repair. The manufacturer was not made aware of the failure. The approximate failure mileage was 81,000.

#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.

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.

The contact owns a 2015 Chevrolet Silverado 1500. The contact stated while driving 45 mph, he heard an abnormal noise coming from the vehicle. The contact stated no warning light was illuminated. The contact stated that he continued driving to his residence. The contact stated while leaving the driveway, he continued to hear the abnormal noise, and the service brake warning light illuminated. The contact took the vehicle to the local dealer, where it was diagnosed with needing the brake vacuum pump to be replaced. The vehicle was not repaired. Upon investigation, the contact associated the failure with NHTSA campaign number: 18v578000 (service brakes, hydraulic) however, the VIN was not included. The manufacturer had not been informed of the failure. The failure mileage was approximately 106,000.

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

Trailer brake assist warning keeps going off at different times with no trailer attached. Quite annoying and unsafe distraction.

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.

The service trailer brake system warning keeps appearing while driving without a trailer and with a trailer attached to the truck. There is a defective wire harness located on the left side of the steering wheel that needs replaced to fix the issue. The warning alert appears and dings while driving causing distractions while driving down the road.

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.

The contact owns a 2015 Chevrolet Silverado 1500. The contact stated while her husband was driving approximately 25 mph, the messages "service power steering", " service stabilitrak" and "service four wheel drive" were displayed. The contact's husband was able to veer to the side of the road. The contact stated that her husband turned off and restarted the vehicle, and the vehicle responded as needed. The contact's husband was able to continue driving. The contact stated that stated that the failure had been occurring increasingly, and was persisting after restarting the vehicle. An alarm sounded. The contact stated that while driving from a complete stop, the vehicle hesitated to respond, and then jolted suddenly. The vehicle was taken to the dealer, who informed the contact that the failure could be related to NHTSA campaign numbers: 18v586000 (steering) and 19v761000 (service brakes, hydraulic, service brakes, electronic stability control); however, additional diagnostics tests were being performed. The vehicle was not repaired. The manufacturer was notified of the failure and advised the contact that they could provide monetary assistance for the purchase of another vehicle. The failure mileage was approximately 63,000.

Trailer brake system alarm keeps going off.

Having problems with braking at slow speeds, pedal sticks to the floor when reversing into parking space or pulling up in drive thru lines at slow speeds etc. . No problems braking at regular speeds.

Trailer brake system I have owned this chevy silverado 2015 since 2018 when I purchased it certified from a used car dealership in upstate new york. About one year into owning the vehicle I started to experience an alarm that was flash trailer brake system. This alarm would beep and flash in my center consul restricting me from sight distracting me from driving and is almost impossible to drive the car without distraction. I checked youtube I called the manufacture I did so much to figure out what was going on and why this was happening considering I do not show any thing I did not understand why the trailer brake would cause such a problem considering I never told anything. After about three months of driving the car this trailer brake system alarm stopped. Now recently 2022 the trailer break system alarm is back and flashes nonstop and is relentless. I cannot listen to music I cannot hear my own self think the alarm is so loud and so distracting I would rather walk to the store then drive the truck I am forced to drive this truck because of the fact that I need to get to work but the safety hazards that are now limiting me and I am afraid this is going to cause a major accident or loss of life. I recently discovered that this is a manufacturers wire harness malfunction due to faulty wiring and a low-grade wire harness system. Before this gets any worse I need some sort of help. Knowing that it is impossible to fix without thousands of dollars being spent and finding a specific electrical auto technician to fix it it is nearly impossible to have this fixed chevy refuses to even acknowledge there is a problem I need someone to please help me and the other chevy silverado owners to get this under recall so that these wire harnesses can be replaced please help us my name is kevin nugent my address 174 jefferson Ave. , emerson, NJ 07630 201-615-1659 is my cell phone number.

2015 chevy silverado, 62,300 miles. While driving at highway speeds. The air condition compessor locked up. Causing the engine to die and causing the loss of power steering and power brakes. I was unable to brake in a timely manner and had to swerve to avoid stopped traffic. It seems there are thousands complaining of the same issue online. There was no warning. I have contacted the dealer and they say there is no recall.

This is a 2015 chevy silverado, I continuously get a message reading "service: trailer brake system". This error message would continuously chime every 5 seconds, no matter if I cleared the message with the check button on the steering wheel or left it on. This chime would override the radio, phone calls, turn signal chime and any other noises put out by the vehicle in addition to covering the digital speedometer readout. I have yet to take it to a dealership as today was the first repetitive issue lasting over 30 minutes. I first noticed this at random over the last 2 months, but these messages would stop after 2-5 minutes worth of chimes. I plan to take this to a dealer for inspection, but wanted to check for recalls/ report the issue before doing so.

Trailer brakes went out while towing a car.

The contact owns a 2015 Chevrolet Silverado 1500. The contact stated that the vehicle was taken to the dealer for an air bag recall, the contact was asked to move the vehicle forward and stop at a certain spot; however, the vehicle failed to stop immediately when the brake pedal was pressed. The contact had to apply an excessive amount of force on the brake pedal for the vehicle to roll to a stop. The dealer informed the contact that the failure was related to NHTSA campaign number: 19v645000 (service brakes, hydraulic); however, the VIN was not included in the recall. The contact was informed that the brake booster had failed and needed to be replaced. The vehicle was not diagnosed or repaired. The failure persisted and had occurred several times. The failure was most persistent when on an incline, in reverse, and during colder weather. The manufacturer was not made aware of the failure. The failure mileage was approximately 70,000.

Service trailer brake system alert is going off constantly during driving the vehicle. I was not towing anything and have only ever towed something one time with this truck. The alert produces a chime and flashes the alert over the speedometer screen.

Trailer brake system (dismiss) has come on twice now in the driver information center screen.

Steering and braking stops working during low speed. Ac stops working and several components flash a warning message trailer hitch and stabilizer and engine light appears sporadically. It shows that I do not have recalls but I believe the repairs in the past were not done correctly. Old software or a electrical short from an faulty part!!!!!.

The vehicle is experiencing a low speed brake failure where the brakes either pulse like abs brakes or there is no brake at all and you have to push hard to the floor to get brakes. I have seen some reviews that say this was a recall but I did not find anything on your site and I have not received a notice.

Slow speed braking is severely affected upon engagement, such as backing out of my driveway, or maneuvering into a parking spot. The brake pedal will pulse as if the abs system is activating, however, upon reaching/ keeping idle speed, the brake pedal will become very rigid and the pedal is very hard to compress downward. Once the vehicle is stopped, and power is applied again with the gas pedal, normal braking is restored.

Service trailer brake light comes on continuously making it very distractive when driving no matter if you dismiss the message on the dash.

At low speed I get a hard brake pedal like low vacuum ( booster pump failure) maybe.

On an interstate offramp facing downhill moving at a slower speed 15mph or slower, application of brakes resulted in a brake pedal that could only be depressed about an inch (outside of normal function). Braking distance and response was drastically reduced. Decreased braking performance was experienced shortly after while reversing into a parking spot at low speed (1 mph), almost hitting a concrete wall in an underground parking garage. Vehicle is being inspected by a Chevrolet dealer service department.