I was driving on the highway and noticed my brake peddle became hard. I was in mild traffic so I was only traveling around 40 miles MPH on I 287 I was not able to stop quickly. I did not get into an accident. I was able to get it to my dealer for repair. I was told that the vacuum pump needed to be replaced and parts of the pump were also sucked into the engine. I was also told that I would need to have the oil pan removed to remove any debris which would cost around $1100. At this time I still do not have the truck back or repair invoice. I have been researching and did see that there have been issues with the vacuum pumps on other gmc pickups. Fortunately I was not driving at a high speed at the time of the issue.
2014 GMC Sierra 1500 brakes complaints
Page 5 of 6: complaints 101 to 130 of 144, newest first, as owners wrote them.
We had the vehicle recall notice about the stability and power assist repaired at our preferred gm dealership, james wood, before the problem occurred because of a recall notice we received last year. Sunday, january 30, 2018 the dash displayed power assist limited and also displayed ABS light . Service engine soon, so we brought it to the dealership again. This time the vehicle was revving high but no display. The dealership observed the vehicle doing this but we were told the recall had already been performed. There is a revised product safety recall reference number n172085440. I'm alerting the federal safety agency of this.
Lost normal braking going down a steep hill at 25 MPH , had to use both feet on the brake pedal just to stop.
While in motion, applied brakes and the pedal went to the floor without stopping. Checked brake fluid and it was near empty. Only 50,000miles.
At slow speeds the brake pedal becomes " flat" that is to say there is no travel or give in it and you must apply 110% force to get the vehicle to stop. I almost drove thru the garage door at the local jiffy lube dealer. Had the local gmc dealer look at it & he could not find a solution to the problem.
My brake pedal gets hard with no brakes if I happen to be in a situation where I apply the brakes several times quickly, such as at the carwash or in a parking lot. The ABS was not firing at the time. I was not turning. This has happened a number of times in the past 2 years.
Loss of braking at low speed while in reverse. Occurred on at least two occasions just past expiration of bumper to bumper portion of vehicle warranty (see attached complaint letter to gm for details). Dealer stated vacuum booster was defective and repair costs exceeded $400.00. Gm home office was notified viz fedex letter. Other than contacting me for basic information, no further contact was initiated by gm or delivering dealer. Alleged defective part is in owner possession which gm was notified of as well.
Major safety concern!: hard brakes at low speeds, intermittent stiff brakes in forward and reverse. 2014 gmc sierra slt crew cab 4wd, 40k miles. This is a very serious issue that could result in a collision, damage and/or injury. I have experienced this multiple times since purchasing this truck from the original owner in 2017. It has happened when parking, moving trailers, an maneuvering at low vehicle speeds. The brake pedal suddenly becomes stiff when depressing and has limited or no braking action unless applying extreme amounts of pressure on the brake pedal. I have driven vehicles without power brakes and this is not the same. It is as if the braking system is working against the input of the pedal in addition to the loss of power brake action. The most concerning event was experienced while backing a boat trailer into the water with two children in the back seat, buckled in child restraining car seats and pushing with both feet using all my strength to barely stop the truck and trailer from rolling all the way into the water. This was a true nightmare, and is the reason I am submitting this safety complaint. Had my wife been operating the truck or a person with weaker legs in the same situation, the issue could have been severely tragic. I cannot safely operate the vehicle until this is resolved. I am truly disappointed that this hasn't been turned into a recall based on the multitude of complaints on this very same issue. How many close-calls or near-misses does it take before the federal safety agency and a world-class vehicle manufacturer contain a major safety issue? I hope this issue gets the proper attention and a recall is mandated swiftly, before more people get hurt or worse.
Intermittent extreme loss of braking power - in forward and reverse. Sometimes and unexpectedly cannot stop quickly even when brake pedal pushed to the floor.
When applying brakes at low speed like pulling out of driveway or away from a gas pump. If the brakes are pumped or pressed hard the brake pedal gives strong resistance and the truck will not stop. In order to stop the truck the emergency brake needs to be applied. The problem is worsened if on a downward incline when taking the truck out of the park position and moving into drive while holding foot on the brake.
First noticed at about 65000 miles. When braking in stop-and-go traffic or in reverse (especially down an incline such as a boat ramp), the brakes can become very hard to press and non-responsive. This results in long stopping distances. Had the truck inspected by dealer and they suggested vacuum pump. After researching this issue, there appears to be a general issue with the vacuum pumps that gm will replace under warranty, but has not recalled....
When backing down a steep hill or back a boat down the boat ramp, the brake pedal get hard and the truck doesn't want to stop. Driving on a flat surface I haven't had an issue but it is very scary backing the boat into the water feeling the brakes aren't doing its job.
Within about 15 months of ownership my vacuum pump on the brakes malfunctioned, while I was towing a pontoon boat. Needless to say I was very scared that I was not going to be able to stop but eventually I slowed down enough to pull into a gas station in warsaw, in. Luckily when this happened there were very few other vehicles out on the road otherwise this story may have a different ending. This happened on highway 15 in milford, in.
The problem has occurred twice in the last week. Both times in normal driving conditions and good weather conditions. While pulling in my driveway at low speed when I pushed on the brake pedal it was hard and would barely depress. There was no power assisted braking and it took me pressing as hard as possible with both feet to get my truck stopped before I hit my garage. This happened again when I was trailering my 1500 lb fishing boat. I was backing it down the ramp and brakes failed again. I had to again press brake pedal as hard as possible and use emergency brakes to stop. There was a noticeable grinding sound in the brakes while trying to stop. Again as if there were no power brakes. Both instances occurred while going 2 to 3 MPH but if it happened in an area with pedestrians or at higher speeds it could result in serious property damage and injuries. Please look into this and force gm to take corrective action asap.
When brakes were applied the truck would not stop, truck was just out of warranty by weeks, independent shop replaced the vacuum air pump for the brake system. I was lucky that I was moving very slow ,in a parking lot, no one was hurt and no damage to the truck.
Tl* the contact owns a 2014 gmc sierra 1500. While driving at low speeds, the brakes failed to stop the vehicle when the brake pedal was depressed. The contact stated that the brake pedal had to be depressed with force to operate correctly. The vehicle was taken to henson chevrolet buick gmc (201 n may st, madisonville, tx 77864, (866) 551-9977) where it was diagnosed that the brake booster vacuum pump needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was 23,000. *tt consumer stated braking failure happened on the residence driveway.
I have had problems with my brakes for the last 3 years. I already had by brakes fixed my gm because of a bad squeak when pressing on my brakes. I recently just changed my master cylinder because the brake pedal would get stuck on certain occasions when driving. Sometimes having me to use the emergency brakes. Sometimes I would have the brake pedal all the way down and the truck would still keep moving. It would happen sporadically. Most of the time when I am driving in traffic or through a parking lot.
When braking at slow speeds, like when idling in traffic or rolling through a parking lot, when the brake pedal is depressed it is very hard, like when pressing the brake pedal with the vehicles engine off. At times I have had to used both feet to press the brake pedal the try and stop the vehicle. The vehicle is also very hard to stop when this issue occurs.
While driving my truck at slow speeds and applying brakes, the brake pedal will get hard and unable to stop vehicle. It has occurred while backing a trailer town hill towards a lake and I was unable to stop the truck only able to have friend block the tire so I could put in drive. It has occurred while approaching stop signs and also frequently in parking lots.
Very hard brake peddle. Limited to no braking ability when condition exists. Going slow backing up with trailer, forward going slow. If foot on brake for extended time at stop light braking ability abates, peddle very very hard. Brakes unable to stop vehicle no matter how much pressure put on brake peddle.
Tl* the contact owns a 2014 gmc sierra 1500. While driving 70 MPH, the vehicle stalled and the stabilitrak warning indicator illuminated. In addition, the steering wheel and brakes seized. The contact powered off the engine while in traffic. The vehicle was restarted and drove normally. The contact stated that the failure recurred numerous times. The vehicle was taken to covert buick gmc (located at 11750 research blvd, austin, tx 78759, (512) 583-3411) where diagnostic testing was completed, but no failure code was found. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 103,000.
While tapping the brakes, the vehicle's headlights will dim occasionally. 2 times now while tapping the brakes, the entire dashboard (including the touchscreen) turn off and restart. The first time was travelling on a highway and the second time was on my driveway, I applied the brakes and the entire car shut down, including the power steering, power brakes, and engine. That time I rolled out of my driveway and into the road. I was lucky no one was coming
My 2014 gmc sierra is having a major brake issue. I replaced the brake pads after being told the padding was low. This did not fix the problem. My truck does not slow down when braking on a hill. I read in another article that the vacuum pump goes out at a low RPM, causing the truck not to stop. Unfortunately, my wife was driving my truck down the driveway, and couldn't stop. This issue almost caused her to hit another vehicle that was passing at the end of the driveway.
Tl* the contact owns a 2014 gmc sierra 1500. While driving approximately 55 MPH and attempting to stop, the braking system failed and the brake pedal traveled to the floorboard. The driver downshifted and the vehicle coasted until stopped. The vehicle was towed to an independent mechanic who diagnosed that the failure was due to a failed vacuum pump belt in the braking system. The vehicle was repaired. The manufacturer and local dealer (sun buick gmc inc, 3333 sunrise hwy, wantagh, ny) were both notified of the failure. The VIN was not available. The failure mileage was 91,000.
Driving at 55 miles per hour lost brake functions. Was able to slow down on side of high , and had truck towed to nearest shop. Found that vacuum pump and belt were broken . Ver concerned that a belt brakes and you can not stop. Have reported issie to gmc
While tapping the brakes, the vehicle's headlights will dim. Occasionally, while tapping the brakes, the entire dashboard (including the touchscreen) turn off and restart. On 6/18/18, while travelling on a highway at 40 miles an hour and approaching a red light, I applied the brakes and the entire car shut down, including the power steering, power brakes, and engine. I had to place the car into neutral and turn it back on in order to brake in time.
While driving went to stop at service station brakes would not work as they should ,had to push on pedal very very hard to stop almost ran over gasoline pump.dealer says it may be vac leak or pump.very bad situation dangerous gm should repair it my dealer is mitchell buick gmc in san angelo tx
60k miles. Service brake assist light came on after 1 hour drive. At low speeds, brake pedal is extremely difficult to depress (as if no power brakes on antique vehicle), truck does not stop as needed. Diagnostic check from onstar does not show any code.
Vacuum system on the breaks are loosing pressure causing the breaks to become nearly impossible to depress. I have run in to my fence causing minor damage. This happened when I was at a snails pace, couldn't imagine it happening at a higher speed gm is aware of the fix but at my cost of over 750.00. There have been numerous complaints to the dealerships and on gm forums. This problem needs to be addressed. I'm glad no one walked in front of me when this happened.
Gm has a major problem with the vacum pump failing on the 2014 and up 1500 series trucks. Gm has issued a service bullentin pit5361 for this issue. When the vacum pump fails the brakes become almost impossible to apply. After researching the problem it is a very well known issue that many have had. My gmc started this at about the 49,500 mile spot and has caused me to strike a wall and almost a pedestrian in a parking lot. Thankfully I was on my toes and avoided hitting the pedestrian. Im a big man at about 265lbs. When the brakes fail to work I cant press the pedal hard enough with both feet to stop the vehicle. Im currently waiting on gm to return a call for assistance in fixing the problem as this is a costly fix. Braking is a vital and high safety feature on a vehicle. Why this hasnt been addressed before a family is killed is beyond me. Issuing a service bullentine instead a recall for such a vital part a vehicle is reckless.
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