Brake Hoses, Lines/piping, And Fittings Problems of GMC Yukon - part 1

Brake failure due to leak from rusted out brake line under driver seat area and loss of brake fluid.

See all problems of the 2003 GMC Yukon 🔎.

Tl- the contact owns a 2004 GMC Yukon. The contact stated that while driving at a moderate rate of speed, the brake line failed without warning. The contact had the vehicle towed to an independent mechanic where it was determined that a brake line had burst and that another brake line was on the verge of bursting. The contact then had the vehicle towed to four seasons Ford 601 duncan hill rd, hendersonville, nc 28792 (828) 693-4281 where they informed the contact that they would only give the contact half money of the money that he put down for the vehicle or put the contact into another vehicle of the same value. The manufacturer was not notified of the failure. The vehicle had not been repaired. The failure mileage was unknown. Jo.

See all problems of the 2004 GMC Yukon 🔎.

Rusted brake lines (both) rusted and failed at a critical time putting motorist in dangerous situation at time of failure. Exiting highway at posted speed with few options on how to stop vehicle.

Tl-the contact owns a 2016 Yukon xl. The contact stated that on several occasions when the brake pedal was depressed at low speeds, the brakes failed to slow the vehicle. The contact stated that the failure was intermittent. The vehicle was taken to southern pines Chevrolet Buick GMC located at 10722 us-15, southern pines, nc 28387, (910) 692-2002, to be diagnosed. The contact was informed that the brake lines and vacuum pump needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and notified of the failure. The approximate failure mileage was 60,000. Ah.

See all problems of the 2016 GMC Yukon 🔎.

Without warning the brakes failed. Vehicle was in motion at time of failure, vehicle could not be stopped and at 30 mph ran through the red traffic light at a busy city intersection. Fortunately, no accident occurred. Vehicle had to be towed to dealership. Dealer repaired vehicle. Invoice stated: "brake line wore through from steering column rubbing on flexible section. ".

Power breaking fails when driving at low speeds, brake pedal stiff and hard to push down to stop vehicle in both forward and reverse directions when inching forward at a stop light/sign, or parking in a parking lot in forward and reverse car keeps moving. Stopping required very hard push on the stiff brake pedal. . Braking at higher speeds less affected but sudden stops can require more force than usual as the car slows down. Problem began December 2017 rarely and intermittently, and increased to all the time by February 2019 at low speeds the power brake did not work and required much force on the brake pedal to stop vehicle every time. Brake fluid was fine and so was brake pads. Gm dealership visit showed a failure of the vacuum pump for brake line and they installed a redesigned pump which shows that the original has faulty design. They also required a belt that operates pump to be replaced as well. This seems to have fixed the problem for now but this repair has a two year guarantee. Price for me to fix over $881+tax.

See all problems of the 2015 GMC Yukon 🔎.

The first occurance was a year ago when driving to play golf. When I was about one mile from the course, the brake pedal went to the floor when depressed. I was able to make to the course and called a tow truck. The repair was made by the local dealer. He asked me if I lived at the coast due to the corrosion found on the brake line. I do not live near the coast and the vehicle is garage kept with only 102,000 miles on it. Most recently while driving in town, I depressed the brake pedal and the same thing happened. It went to the floor and was very slow to stop. In my estimation, this is very poor workmanship on behalf of general motors! I hope that no person has been killed due to this defect.

See all problems of the 2002 GMC Yukon 🔎.

While traveling at highway speed and rounding a blind curve the traffic ahead had stopped due to a crash. I had to brake harder than normal and the brake pedal just kept depressing further and further until it was all the way to the floor. I wasn't stopping near fast enough and had to veer to the left into the median to avoid making contact with anyone else. It was raining and as I looked under my truck to look for why my brakes were ineffective but couldn't see anything at that time. I chose to try to drive home not sure why I had the problem stopping. The next day was dry and I had my brother pump the brakes while I look underneath and found numerous places where the brake lines were rusting at an alarming rate and one location where the rusted line failed. I repaired the leak I had found and when I tried to bleed the brakes from that repair I would begin an unending run of leaks up and down the metal brake lines for both the front and rear. This Yukon has around 260k miles but those brake lines shouldn't be rusting through like they are. I have had more than 15 tahoes, Yukons, Yukon xls, suburbans, and pickup trucks from gm and never have I had such a run of brake failures as this 2004 model Yukon was now going through. Gm says this is normal maintenance but how can one even see if a failure is occurring as many of these lines are concealed by the frame, chassis, and body. I have spoken to other owners of similar vehicles, be it pickups or tahoe's or suburbans of the 2000 to 2006 model years and nearly all have complained of chronic body rust issues but more importantly brake failures from brake lines rusting and then blowing out without warning. Many also cited that of the lines that are visible to inspect they would appear to be ok but just out of view one would have a sudden blow out with no way to see or know there was a problem since the lines are concealed.

Brake line rusted, caused traffic accident at 30 mph. Breaks were serviced last year.

See all problems of the 2007 GMC Yukon 🔎.

(kh no dealer info) tl the contact owns a 2001 GMC Yukon. While driving at an unknown speed on the highway, the contact depressed the brake pedal with excessive force in order to avoid another vehicle. The contact noticed that some of the brake functionality was lost. The vehicle was taken to an independent mechanic where it was diagnosed that a piston was defective and needed to be replaced. Three months later, while trying to shift gears, the contact heard an abnormal popping sound. The vehicle was taken back to the independent mechanic where it was diagnosed that the brake lines were defective and needed to be replaced. The manufacturer was notified of the failure and offered no assistance. The failure mileage was approximately 250,000.

See all problems of the 2001 GMC Yukon 🔎.

Accelerated rigid brake line corrosion resulted in brake line failure and complete loss of vehicle stopping ability. Brake lines are inspected regularly and did not appear rusted. Vehicle was in motion traveling at approximately 20 mph when operator stepped on brake to slow and stop vehicle. Brake pedal felt soft and then pressed completely to floor without any braking action. Operator used emergency brake to slow and stop vehicle. Vehicle required immediate towing as it was not road worthy and was unsafe to drive without braking ability.

My brake lines are rusted out as describe in the article below. Costing me over 650. 00 to repair. Less than 115k on my car! never had to replace brake lines before. . . I lost my brake un-expectantly during a rain storm in cohasset, MA on 1/10/2017. Luckily I was on a side road coming to a stop sign and no accident occurred nor were my 3 kids in the vehicle. I saw this article below and decided to write you. . Read more...

This vehicle came with factory tow package. Brake lines, rear, were repaired a year ago. Towing a horse trailer with horse ( approx 6500 lbs total ), the front break line from the abs module broke and pedal went to floor while exiting 90w onto 84w. Trailer brakes finally stopped the vehicle a few inches from the auto in front of us . This was on new years eve this year, and 2:00pm in the afternoon. Found a garage/mechanic to repair the front line. This could have caused a major accident involving a number of cars and trucks. I have the vehicle inspected at every oil change, and have it repaired when needed. I have read of many issues with the (cheap ) brake lines gm has used in these vehicles( 1999 to 2003 ), and as they get older, they are just an accident waiting to happen. Gm should recall these vehicles, and fix the problem with corroding break lines. Especially with their " professional grade" advertisements. Very misleading.

Lost brakes completely. The was a catastrophic failure in the cluster of brake lines in front of abs module due to rust which left a puddle containing all of the brake fluid on the ground. Luckily the vehicle was in a church parking lot when it happened and a sudden stop was not needed from a higher speed. This could have been bad if that were the case. Too bad gm did to spend a few extra dollars on rust-proof brake lines given how exposed to the elements they are.

See all problems of the 2005 GMC Yukon 🔎.

Rusty brake lines resulting in complete brake failure. Thankfully the vehicle was stationary at the time, so no accident as a result of this failure.

See all problems of the 2000 GMC Yukon 🔎.

The brakes failed while driving on a city street causing my vehicle to nearly strike a number of children at a crosswalk. After examination by a mechanic, it was determined that the brake line had corroded and burst under pressure. I have received no notice of this potential failure from GMC even though it has been investigated by the NHTSA. Shouldn't the manufacturer have an obligation to repair this potentially lethal problem? at a minimum I feel that GMC and/or the NHTSA have a moral obligation to notify owners of affected vehicles that they are driving a potentially deadly vehicle.

Vehicle has only 21,650 m on it, used mostly on weekends and in the snow in winter. It was doing fine until 9/18/16 when suddenly I noticed my brake was not responding as usual. I had to push the pedal to the floor repeatedly to stop, barely missed hitting the car in front of me. I was on one of my city streets getting back home after grocery shopping. Drove home slowly and very carefully. Had it towed to a nearby gm dealer. He says most of the brake lines and some hoses have rusted, need to be replaced. That would be 15-16 hours labor and will cost me $ 2000. 00. It snows here quite a bit and after the season, I always wash my vehicles with emphasis on the underside to remove the salt and chemicals. Besides, on this vehicle I had to repaint the hood twice, roof once and replace the rear bumper so far- all due to rust. Now my front bumper is showing signs of rust. What's the matter - with all this excessive rusting on this vehicle. I have my other SUV parked right beside this at home and use it in the winter time. It is much older than Yukon and there is no rust problem at all with it. Looks like there is some serious problem with the metal used in this vehicle or lack of quality control. Gm did a bad job with this vehicle. They say there was no recall on this model. Would like to know if I can get compensated by gm for all this hardship. Do not know what else is in store with this vehicle in future. Have to get the brake job done right away but very pricey for my budget. Please check into this problem and let me know how to proceed. Looking forward to hearing from you soon. Thanks, n. Vasudevan.

See all problems of the 1999 GMC Yukon 🔎.

The contact owns a 2004 GMC Yukon. While moving from the park position, the brake system disable warning indicator illuminated. The brake pedal was depressed, but failed to operate. The emergency brakes also failed to operate. The contact stated that there was brake fluid evident under the front of the vehicle. The contact also stated that the brake line was extremely corroded. The vehicle was not included in NHTSA campaign number: 04v045000 (service brakes, hydraulic). The vehicle was not diagnosed nor repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 152,000.

Total brake failure while stationary and engaging drive mode in driveway. Brake pedal went to floor. Parking brake also soft and ineffective but restored normal condition shortly thereafter. . No brake or abs system service alerts or fault warnings prior to failure. 'service brake system' alert present after failure. No obds codes present. Suspect brake line corrosion. Approximately 170,000 miles. Recent tire/brake/alignment inspection revealed no issues. This is a very clean, "new to me" used vehicle with an excellent record of service. Had just completed a trouble free 2400 mile interstate road trip.

The stability control warning has come on several times on my vehicle. The brakes do not work, as you have to push all the way to the floor and sometimes it takes time before the vehicle stops. I have had brake lines repairs and the problem still is there. We cannot use vehicle until the issue is resolved. Our mechanic advised us to file a complaint on this issue because it is an active issue with GMC denali Yukon's for years. We need assistance to have this resolved to use our vehicle.

For the second time in an approximate 12 month period, I had to replace a brake line failure. Until now, I didn't know that gm has a "replacement rebuild kit". However, the first time my sister was driving and had a brake failure with a car load of family aboard, in jacksonville FL. A nationally known company replaced the portion of the brake line that ruptured, but they did warn me that rust was rampart because of the salt. Yesterday, I was driving to work on i495, d. C. Beltway at 50 mph, where thousands of people travel daily and I had another catastrophic brake failure at 50 mph. That scenario, just thinking about it again, scared me half to death and I just fixed the same thing last year for 600. 00+ and unexpectedly it happens again. Only by the grace of god, no one was injured or killed or had substantial property damage. What I found out later after investigating this problem, and the same company who replaced the first brake line said it would be 1500. 00 to fix a portion of the brake line. This issue is well known by gm and has been investigated for 5 years and gm did not do a recall because most warranties have expired. However, with the snow-belts states salting the roads have damaged many gm and other vehicles. From 1999 to 2007 gm trucks and suvs were using non-pv coated brake lines. By these brake lines not being coated with protectant, corrosion runs rampart on your brake line system, this is probable in all the aforementioned vehicles. I think that every dealer should do this replacement for the gm recommend price. I talked to my service manager at chevy/gm today and he said gm doesn't own this dealership and the recommended time to install (4. 5 hours) @ 100. 00 per hour is not realistic. I said you sale and service these vehicles, yet no one wants to step up to fix them until some gets killed, that's ridiculous.

I was towing a 17' boat and came to a stop sign. I pressed the brake pedal and it went to the floor. The Yukon did not slow at all. Fortunately, no one was coming and I rolled through the stop sign, made a right turn, and went down a steeper hill. Pumping the brakes as I went had no effect. The dash showed a 'service brake' message. I applied the parking brake and down-shifted, which slowed it enough that I was able to swing wide into the opposing traffic lane and barely make the turn at the bottom of the hill. I pulled off to the side of the road with the right-wheels on a soft shoulder before the vehicle slowly came to a stop. I refilled the brake reservoir and had my wife press the brake pedal. It went to the floor as brake fluid shot onto the hot exhaust manifold, leaking from a rusted joint where the steel brake line joined a flexible, braided line under the hood. The brake lines were horribly rusted, unlike anything I had ever seen in my 35+ years of driving and owning vehicles (including 20 cars and light trucks). This Yukon has spent its entire life registered in virginia and has less than 80k miles on it. I can't imagine what they are like in northern states. Looking online, I discovered that this was a known problem that the NHTSA had investigated. Why was I not warned? I could have been injured or killed, as could have another motorist or pedestrian! when I called my local GMC dealer (ourisman of alexandria, va), the service advisor claimed to be unaware of the problem, the gm service bulletins that had been issued on it, and the availability of the pre-bent lines as a discounted kit from gm. He estimated a four-figure labor bill to do the work, so I am doing as much of it as I can myself using nickel-copper brake line and a flaring tool. People are going to die from this if the NHTSA does not force gm to do a recall.

Two years ago I had a sever accident that cause me to hit another car and spin around. The GMC dealer said the cause was rusted out brake lines. Today it happened, but I was luck enough to be just pulling into my parking spot when it happened. The brake line must have rusted out again because I pumped the brake and noticed it coming out of the left rear line. This is very dangerous because it will likely only happen when you are in an emergency situation. There is no pre warning. It will just happen. Perhaps they are making the brake lines out of thinner material because we have many vehicles much older, and never had this problem.

I drove approx. 30 miles to my destination without any trouble. I spent about 2 hours there then started my 2002 Yukon xl to head back home. Upon moving the vehicle I realized I had very limited breaking power. The brake pedal went right to the floor. I dread thinking about what could have happened if I was on the interstate heading home. My mechanic said the brake line failed causing the rear brakes to lose all stopping power. He said he has seen several cases of this same problem on early 2000's GMC trucks and SUV's. I researched this issue and found many of the same complaints online. GMC should stand behind this and pay to repair this obviously defective part replacement. This will be an $800 repair for me and a big disappointment in GMC if they don't stand behind their vehicles.

Brake line failure - st. Louis mo. Brakes failed while attempting to slow from 60mph speed on christmas day. Narrowly escaped accident/collision. 2 brake lines were found ruptured/split due from rust/corrosion then repaired. Other brake lines are showing corrosion & will need attention soon. Vehicle is 2003 GMC Yukon with 101,300 miles.

I went to back out of my driveway and the brake pedal went to the floor. I looked under the vehicle and noticed a rusted brake line had burst. I was able to park it safely back in the driveway. I take care of my truck and is serviced regularly by the dealer.

Lost all braking , took truck to repair shop and the brake lines had corroded and had several holes in them. I had to replace all the metal lines on the vehicle. Brakes were fine hooked up utility trailer and pulled out of my driveway. Going down hill, applied brakes and the pedal went all the way to the floor.

My 2004 Yukon has at least three major leaks in the brake lines caused by corrosion. Research found that this defect was identified shortly after the vehicles were sold new but refused to issue recalls. I was in a near accident when my brakes went completely to the floor suddenly. Also the stabilizer system fails without notice and the dash instrument cluster (gas gauge, temp gauge, voltage and oil pressure gauges works on and off.

I lost all braking ability while traveling the interstate highway. I was able to stop the vehicle and found brake fluid flowing from the main brake line feeding the anti-lock controller.

Brake lines rusted in to causing the lines to weaken. Driving to my house , push on brake pedal it went to the floor look under vehicle and there was a pool of brake fluid under the vehicle. This could have been a serious accident in traffic.

I was driving with my 14month old baby in the car and all of a sudden I had no brakes at all. My parking brake couldn't stop me either so I put the car in neutral and then forced it into park so I didn't crash. The brake lines are completely corroded and I didn't have any notice or idea until the brakes were already gone.

Brakes completely failed. Traveling 35 mph, I had to brake suddenly and the pedal sunk to the floor. Had minor resistance, then just completely gave way. No brakes! was able to avoid an incident by veering into the oncoming lane that was luckily vacant. Turned onto a side street to safely roll to a stop. Too scared to drive it the remaining 1. 5 miles home, I have it towed to a shop. Advised that all brake lines need to be replaced, this is a common problem with GMC that he has seen a dozen times. The brake lines corrode, and eventually burst. Absurd! to think this could of happened on a family road trip at 65mph. . . I will buying a vehicle outside of GMC and their umbrella of poorly made vehicles- ASAP!.

The 2005 Yukon brake lines have rusted through, and while driving of all places to the inspection station in upstate NY. While in the shop for repair, it was advised that the aluminum antilock distribution box has major corrosion as well. It needs to be replaced.

Hard brake lines have completely corroded and brake fluid flows profusely from the corroded lines. Brake pedal goes to floor and vehicle is unable to stop. Had to put into neutral and use parking brake to avoid an accident. GMC service department is unaware of any service bulletins or kits to replace defective and corroded brake lines on these truck and suvs.

My wife, with three children in the car, attempted to stop at a stop sign while traveling at approx. 35 mph and the brakes completely failed. After going through one additional stop sign and red traffic light, she was able to safely bring the car to a stop on the shoulder. Upon investigation it was found that one of the brake lines had completely rusted through and ruptured. We are lucky that they are alive. Based on the number of similar complaints, and potential severity of this type of brake failure there should be a recall of these clearly defective brake lines.