general problems of the 2016 GMC Sierra 1500 - part 2

I bought my GMC brand new with 25 miles on it. The first time I had a braking issue was pulling into work. I had roughly 56,500 miles on the truck at this point. I was coming in cautiously due to a heavy traffic area. As I pulled into my parking spot I engaged the brakes. The pedal was softer than usual. I pushed down harder and I came to a slow rolling stop. I thought I was going to hit the building. I let the truck sit/run 5min, (I am mechanically inclined, was in automotive tech courses for 3 years) I checked the brakes/brake fluid and tried the brakes in the reverse gear. Let the truck creep back and tested the brakes. They were normal again. I called the dealership and made an appointment. (uploaded service paperwork). Dealer said there wasn't a recall at this time but wanted me to do a brake fluid flush but I wasn't in warranty anymore so it was going to cost me over 100+ dollars. That's why I refused the service. The winter months go by and my brakes are fine. The second time I noticed this issue, was spring time the following year, I was putting my pontoon boat in the water. Backing into the water I went to stop and my truck kept rolling into the water. I engaged the emergency foot brake. I pulled forward and the brakes were back to normal. I test drove the truck in the empty parking lot this time, see if it would happen again. Called the dealership and asked if there was a recall and they said no. Brakes are back to normal at this point. Finally that year I received a recall notice in the mail. I went to the dealership completed the recall. I thought everything was fixed. Apparently not. I was stuck in a traffic jam at a slow roll, braking more frequently and the pedal went soft and to the floor again. I almost hit the vehicle in front of me. I stopped just in the nick of time. I am now currently working with the dealership to get this brake issue resolved.

At very low speeds such as backing up or parking the brake pedal will not indicate pressure as if the truck was shut off. While backing up or parking you may hit another vehicle. This has happened more than a few times and we returned the truck to have this condition corrected. GMC dealer said it was a recalled for that issue and it was corrected but it seems to have returned.

While backing out of a parking space, I lost the ability to depress the brake pedal. It was stuck momentarily. It only move after I stomped on it twice. Afterward, the vehicle would stop, but the brakes were squishy and very easily over applied. Service brake control message is now on the dash. Truck has 42000 miles.

Driving on the highway brakes locked up break pedal super hard to press.

At startup, if you shift from park to drive or reverse, the brake pedal stiffens and it is hard to stop. If you are able to speed up over a certain speed, say 15 to 20 mph, then the truck brakes fine. I have taken it to the dealer and they replaced the brake booster pump, but it started doing it again within a day or two.

Tl- the contact owns a 2016 GMC sierra. The contact stated that while pressing the brake pedal to stop the pedal felt very hard and the braking distance was extended. The front passenger side brake rotor was also damaged. The vehcile was taken to the local dealer rally Chevrolet located at 39012 carriage way, palmdale, CA 93551 who reprogrammed the brake system computer but the failures continued to occur. The manufacturer was notified of the failures but no assistance was offered. The failure mileage was 46,000. Jft.

I was driving my down a 4 lane highway and when I went to stop I had no brakes and rear ended a vehicle. My break peddle went to the floor.

"service brake assist" message has continuously shown up on dash for over a year, especially while at low speed in reverse most commonly. Vehicle feels like power brakes no longer function and vehicle continues to roll unless you stand on the brake pedal. This is supposedly after the recall repair.

When braking at slow speeds or close distances the truck loses brakes and it seems as if abs kicks on. Brake pedal becomes very hard to push and is almost at floor. Does it in reverse as well as drive. Does this at random times. In order to drive truck safely you have to slow down way before coming to stop.

When braking the brake paddle gets hard and does not allow me to brake. Thankfully it has happen only when I am parking or coming to a stop. Less then a month ago I took it in to our local GMC dealer and in half an hour they said it was fixed. A few days ago it happened again and went back to local dealer and customer service said they can schedule me in two weeks to fix the issue. I don't feel comfortable driving when it's a brake issue I believe it should be fixed or at least try to fix the issue as soon as possible not in two weeks.

I had it twice now where I push on the brakes and the brakes become soft and the truck won't stop. I nearly rear ended a car this weekend when suddenly the brakes grabbed but now I'm nervous to drive it in fear of causing an accident or injury I think it's something gm should be looking into for a recal for the safety issue it causes.

We contacted sarah at GMC corporate on 1/2 concerning covering brake repair costs. At the end of last year, my husband had intermittent brake issues while driving at low speeds. We immediately took the truck to the dealer (mid-Dec, 2019). This brake recall issue was �fixed� by fitzgerald GMC in rockville, MD. However, after the �recall reapir,� toward the end of Dec 2019 and into Jan 2020, the brakes continued to randomly function improperly at low speeds. Fitzgerald wants to charge us for the diagnostic and for repairs ($1100). We are hoping that GMC will cover the cost of fixing this recall issue, as the �recall fix� from fitzgerald did not resolve the brake problem, and is a safety concern. I we told by sarah that GMC would consider covering as we are just outside the warranty but she would have to escalate the request to a senior advisor. To date (1/10/20) we have not received a response from GMC and our car sits at the dealership!.

I was on my way back from a beach vacation Saturday, June 29, 2019 along with two other vehicles driven by other family members. I drive a 2016 Sierra 1500 slt with 30,000 miles on it. After driving for 1 1/2 hours with many opportunities to use my brakes, our convoy needed to make a stop to turn left. To my great surprise the power assist was not working. At first I thought I had no brakes at all. I pressed hard with both feet and stopped the truck before I rear ended my son in law and his family. Scared me to death!! I phoned ahead to our lead car and told them I had serious vehicle problems. There's no way I could drive 400 miles with heavy traffic safely. We searched for the nearest gm dealer and selected j. M. Jackson in andalusia, al. Even though it was a Saturday, the sales people called the service manager who came in along with a service tech. Shorty I had a new vacuum pump installed and there was no charge since gm had issued a service bulletin. But now I'm worried about another failure. I barely avoided an accident this time. There was absolutely no warning prior to failure . After the initial failure to brake properly, I got a service brake assist message. Very dangerous failure. A crash was narrowly averted.

When moving slowly, the abs errantly actuates resulting extended stopping distance. This happens intermittently. The last time I was moving at a slow (walking speed) pace in a parking lot to position to park. When I applied the brakes (which should have stopped the vehicle immediately) the abs kicked on and, with the brake pedal firmly depressed, the vehicle rolled another 12ft (approx) almost striking another car with some people standing nearby. I feel the vehicle is unsafe and cannot insure an accident will eventually result.

The brakes get very hard and is very difficult to stop at low speeds. The dealer is fixing it at no cost stating it is a safety issue but not a recall.

My truck brakes don't work when I am going slowly. I have to push in the brake pedal very hard and it feels like I'm stepping on a rock. The brakes don't work when I am moving slowly(drive through, pulling into parking space, pulling into garage, coming to a stop at an intersection when going slow). It is very scary. I have not hit anything yet, but I feel I will.

With 48,000 miles, the brakes are very soft and ineffective at low speeds. Both in forward and reverse. In reading on line post, this appears to be a very common problem in 2014-2016 pickups. It appears the vaccuum pump is out and will need replaced. This should be a safety recall as I couldnt stop very well the first time it happened.

Brakes were very hard to apply at slow speed. Almost caused collision with vehicle.

Vehicle would not brake effectively under normal driving conditions. Serviced at dealer and vacuum pump was found to be defective.

Brake pedal becomes extremely hard to depress. The vehicle fails to slow down at a reasonable rate even when very significant (foot) pressure is applied. This occurred now four times; three occurrences when backing up and one occurrence when driving forwards. All of these event occurred at very slow speed, basically when moving the vehicle into a parking spot. All events were preceded by slow driving (< 3 mph) for about one minute. The loss of stopping power occurred suddenly; even a few seconds before there appeared to be no issue. The issue remained until I put the car in park and turned of the engine. The issue was no longer there when I restarted the engine. The instances of the issue occurred over the last two months. Initially it was ignored as an individual occurrence, yet the three additional occurrences indicate an issue. A similarity of the conditions leading up to the issue is that I drove very slowly on a flat (level) surface. The duration of this drive was maybe a minute or so. (the best way to describe this is how one drives when looking for a parking spot in a busy parking lot with lots of pedestrian traffic).

Tl- the contact owns a 2016 GMC Sierra 1500. The contact stated that while driving and all the gauges go to zero. The driver information system illuminate a code. The power steering seized. The contact stated that the failure occurred numerous times. The vehicle was taken to the dealer eighth times for the same failure at young Buick GMC dealer. (2010 e main st, owosso, mi 48867, (888) 399-4101) where they could see the failure but could not say what causing the failure. The vehicle was not repaired. In addition, the contact stated that while driving, the stability track started to kick in and pulled to the right side of the road at 50 mph, while the road wet, the chime go off and the power steering seized, the vehicle failed to brake. The vehicle was taken back to the same dealer and but was not diagnosed or repaired. The manufacturer was made aware of the failure and provided a case number. The failure mileage 80,000. Aw.

Brakes become stiff at slow speeds now allowing the truck to properly stop.

When I am going at a slow rate of speed at fast food drive-through or backing down my driveway in reverse I go to press on my panel and next thing you know it is is hard as a brick and the vehicle keeps going I hold most didn't stop going down my driveway and hit one of my children I've took it to the dealership twice they say you can't tap your brakes you have to let the vacuum build back up that is no excuse for the vehicle not stopping!!!! this happens daily at some point something has to be done someone is going to get hurt !!!!!!!.

When attempting to stop at low speeds, experiencing little to no brake pressure in drive and reverse. This is the third occurrance since Nov 2018. Symptoms include stiff brake pedal and audible click upon resuming motion and thump felt in brake pedal followed by significantly reduced braking ability. Narrowly avoided three collisions on commute to work this morning in normal traffic conditions.

At low speeds the vacuum pump gets weak and does not provide the needed vacuum to the brake booster. Resulting in loss of power brakes. While parking I backed up and then pulled forward to straighten up. As I changed direction a pedestrian walked out in front of me and nearly hit them. I had to stand on the pedal with both feet. If my wife would have been driving the truck she would have ran the pedestrian over. The dealer can not replicate the problem and they are not going to replace the booster under warranty. Although gm does have a technical service bulletin in place about this exact issue. TSB # pit5361c. This is a major safety concern!!!! and gm does not care!.

Lost power brakes when depressing them as I was backing into a parking spot. I had to press repeatedly to get pressure back in the brakes. Luckily stopping in time. It happened again later this evening when I was rolling to a stop at a light. The brakes again lost power and I had to press them repeatedly stop the truck before hitting the car in front of me.

When traveling at slower speeds in stop and go traffic on the highway the brake peddle becomes very hard and I am unable to stop the truck. No other vechiles were hit, but it was a very uncomfortable situation. This has also happen servel times in forward and reverse within public parking lots. I have been a able to determine the truck loses power brakes when the brake peddle is applied 4-5 times while traveling slow.

Truck hesitates, jumps, and bumps when applying brakes. When stepping on brakes to stop, it bumps and jumps before it actually comes to a full stop. It seems you really have to step on the brake hard to make it come to a full stop. This is worse on low speed, below 30 mph, stop and go traffic. There were a number of instances I almost rear ended vehicles in front of me due to this problem. The truck also bumps and jumps when taking off. I think this started a few months after I got the truck brand new. It is getting progressively worse. I took it a number of times to gm service center; they did a transmission relearn, software updates, and transmission flush--truck got better for only a few hundred miles, then same problems recurred. The latest couple of times I went back to gm service, they told me nothing is wrong with my truck. It has been very frustrating dealing with this problem and gm service for the past 3 years.

Brake pedal becomes extremely hard to depress. The vehicle fails to slow down at a reasonable rate even when very significant (foot) pressure is applied. This occurred many times; three occurrences when backing up and two occurrences when driving forwards. All of these event occurred at very slow speed, basically when moving the vehicle into a parking spot. All events were preceded by slow driving (< 4 mph) for about one minute. The loss of stopping power occurred suddenly; even a few seconds before there appeared to be no issue. Initially it was ignored as an individual occurrence, yet the additional occurrences indicate an issue.

Pulling into my garage at very slow speed, I depressed the brake pedal and nothing happened. I had to stand on the brake pedal to prevent the truck from going through the wall and into the dining room. Thought maybe there was some air in the brake fluid. Looked at the reservoir and nothing appeared out of normal. A couple of weeks later, today 12/18/18, while backing out of a parking spot at an autozone, someone walked behind the truck. As I pressed the brake pedal to stop and allow them to pass, nothing happened. The truck kept going. I had to stand on the pedal to prevent my truck from bumping into the pedestrian. Both incidents had the vehicle moving at less than 5 mph and idle engine power.

I have experienced loss of power brake boost on numerous occasions, several times while backing my boat trailer down the boat ramp, and several occasions backing up at slow speeds and going forward at slow speeds (usually less than 5 mph). The brake pedal becomes very hard to depress, and truck feels like it's not going to stop unless I apply extreme pressure. It has been intermittent. I asked my local GMC dealer about the issue this past fall, and was told they couldn't do anything until it failed and could be replicated. I didn't experience it again for several months, but this week it has occurred at least three times. I called dealer to make an appointment, which they did, but they again told me that unless they can replicate it, they won't be able to fix it. I have researched this site and have found a number of instances with both GMC sierra's and Chevrolet silverado's experiencing the exact same problem.

My 2016 GMC sierra has 44,000 miles on it. In the last 2 weeks I have had 3 occasions when traveling at very low speeds the brake pedal becomes stiff and requires both feet to depress enough to get the vehicle to stop. Even when completely compressed with my full force the vehicle continued to roll slowly. One time was in a parking lot and the other 2 times were at drive-thru fast food spots. Brake function seems completely fine at normal operating speeds. A search of the internet led me to find several forums with people describing the exact same situations. At low speeds the brake pedal becoming extremely stiff and cannot be depressed more than 1". I was lucky to be able to stop by putting my truck into neutral. If I had rolled out in cross traffic someone could have been killed. There are way too many stories exactly like mine all over the internet for there not to be a significant problem with the vacuum pump and or brake booster or some other brake system component on 2014-2018 GMC pickups and large suvs.

Brake pedal rock hard and will not press down.

Brake pedal becomes hard to push making stopping a problem. Huge safety issue. While in motion at low rpm brake pedal becomes hard limiting the stopping of the truck.

When backing into a parking spot at my residence. I pulled forward to straighten out and my break pedal got hard and would not come to a complete stop for a few feet after initiating stopping procedure. I almost ran into multiple vehicles. It was as if I was sliding on ice. I tried it a couple more times thinking it was a fluke and it persisted to continue with the same behavior. I even went as far as turning my truck off and starting it again to see if it was an electrical issue causing it and nope continued to do it. This is a huge issue that needs to be taken care of as I have read multiple complaints over the same thing.