GMC Yukon 2015 — Problemas relatados

The vehicle developed a recurring cylinder #4 misfire with a flashing check-engine light, rough running, and reduced performance. Diagnostic code P0304 repeatedly returned. Replacing the #4 spark plug temporarily restored normal operation, but the misfire returned after a few hundred miles. The #4 plug was wet/oily, and fresh oil was found pooled in the #4 intake port while the other ports were dry. All eight spark plugs, ignition coils, and plug wires were replaced, along with the #4 fuel injector and both #4 valve-stem seals, but the misfire persisted. A valvetrain/lifter tick later became audible near 3,000 RPM. The failure has now been confirmed as a valvetrain failure that severely damaged/destroyed cylinder #4 and requires complete engine replacement. The vehicle is available for inspection upon request. This defect creates a serious risk of severe misfire, loss of engine performance, or complete engine failure while driving.

While traveling at highway speeds on Interstate 5 in Oregon, my 2015 GMC Yukon Denali experienced a sudden, catastrophic engine failure with zero advance warning. The vehicle instantly lost almost all propulsion and power while surrounded by high-speed traffic, creating an immediate and severe safety hazard on a major interstate. The engine began making a loud, severe knocking noise, and I was forced to navigate across lanes without adequate power to reach the shoulder. The vehicle was towed and inspected by Point S in Creswell, OR, where diagnostics confirmed a P0300 random/multiple cylinder misfire, with cylinder 4 specifically misfiring. Using a stethoscope and scanner to isolate the failure, technicians confirmed a catastrophic rod knock failure at the bottom end of the engine. The vehicle was then taken to Sam’s Automotive Service, where a complete engine replacement was executed at a total out-of-pocket cost of $16,000. General Motors has a well-documented history of internal engine failures on these 6.2L V8 platforms, yet they have failed to issue a safety recall for vehicles experiencing this sudden, dangerous highway power loss.

My 6 year old son and I were coming down the road and came up on 2 deer and I was coming up on a sharp curve and when I hit my brakes my steering wheel LOCKED up completely and the steering wheel is so bent where I tried my best to control it but I failed and we hit a tree head on. Broke my nose and my sons leg broke in between the back seat air bag and door air bag

The contact owns a 2015 GMC Yukon. The contact stated that while driving at 40 MPH, the rear brakes became inoperable, causing the steering wheel to seize, with no warning lights illuminated. Due to the failure, the vehicle crashed into a tree. The contact and the contact’s child sustained injuries and were transported to a local emergency room for medical treatment. The contact suffered a broken nose and a chest fracture. The contact’s child sustained a broken leg due to deployment of the passenger-side air bag. The contact stated that the air bags deployed during the crash; however, the driver’s air bag failed to deploy. A police report was filed. The vehicle was towed to the contact’s residence. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was not available.

There is a recall on my 2015 GMC Yukon, that I am not the original owner of. The recall is for the brake booster and says that it expired. I have had the car checked by two different shops (both confirmed it was this), and one of them was the local GMC dealership by my house. I called to make an appointment for the recall to be fixed, to which they said they needed to order parts and it would take a few weeks. I dropped the car off three weeks later per their request for then another person to call me and say they won't fix it because it is expired. It is a safety matter that the breaks don't work occasionally.

The contact owns a 2015 GMC Yukon. The contact stated that while in reverse(R), the vehicle jerked while depressing the accelerator pedal. There was no warning light illuminated. The contact became aware of fluid spots on the driveway while the vehicle was parked. The vehicle was taken to an independent mechanic who discovered a leak in the transmission oil cooler line. The dealer then informed the contact about NHTSA Campaign Number: 14V152000 (Power Train); however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was notified of the failure and transferred the contact to the NHTSA Hotline to report the failure. The failure mileage was unknown.

Noticed a tick sound. Sent to dealer. Lifter failed. Bent push rod. Took it in Nov 24th. Charged $7,100. Fixed all lifters and bent push rod. Was turning around in my driveway and vehicle just shut off. Took it back to same dealer in Jan 27th. Bad lifter. Same push rod. Still in shop. That’s two months and 2,000 miles and had same failure. That is absolutely ridiculous GM and I should be compensated for this. It has costed me $7100 dollars. They are fixing with a two year warranty but if the failures are so close together, who’s to say it won’t just keep happening. Not only is it a safety issue, it is hurting my finances. I drive this vehicle 2 miles to work at 25 mph, and religiously change the oil at 3,000 miles. It didn’t even get an oil change before it failed again. I am not happy and GM needs to be sued for this. I owe 20,000 on this truck and have spent 7,000 already, and it keeps failing. There needs to be a recall for this model year, and it needs to be a permanent fix. GM knows the quality of this motor is horrible and they won’t do anything about it. It’s not safe. They can my truck for $20,000

Electric Power Steering (EPS) assist was lost while I was driving the vehicle. As a result, I had difficulty steering the vehicle without power steering and almost caused a crash.

While driving my 2015 GMC Yukon Denali on the highway, the vehicle suddenly began shaking and lost power. I immediately exited the highway for safety and had to “nurse” the vehicle about two miles at 10–15 mph to reach home. The vehicle would no longer run afterward. A mechanic later diagnosed a lifter and camshaft failure. This is a known and common issue with GM 5.3L and 6.2L engines that poses a serious safety risk when it occurs at highway speeds. No warning lights or prior symptoms were present before the failure. I did not report it to the dealer, but the vehicle had to be towed to a mechanic for diagnosis. The vehicle is available for inspection.

6.2L engine, collapsed hydraulic lifter AFM failure, required $7400 in total repairs. All lifters, camshaft, high pressure fuel lines, high pressure fuel pump, intake manifold & miscellaneous parts and gaskets replaced by selling Dealer at 94000 miles. No help of any kind from GM or Dealer. This is a WELL KNOWN FAILURE FOR THESE ENGINES!

Vehicle has issue turning at times message on dash says reduced steering had trouble turning and almost caused a accident

I bought a car in early 2024 ive had it for 1.5y I recently went to trade it in for something more suitable for me and they ran a carfax and mileage rollback popped up and I had no clue to begin with. They rolled back 100,000 miles on the vehicle. They’re blaming the finance company but they can’t because the finance company never had the vehicle in there possession

While driving in downtown boston in heavy traffic (stop and go) braking did not stop the vehicle when removing my foot from the brake and reapplying and the braking was extremely hard, the vehicle nearly collided into the vehicles in front of me. This issue persisted continously for the duration of travel. The issue was not found using the vin provided. This issue MUST be resolved ASAP. This incident was not the first, after owning the vehicle for several months this issue is a major safety issues, specifically when my new young adult drivers use this vehicle. Please help me resolve.

Rear tail lights go out intermittently caused by a defect in the vehicle manufacturer’s process in which the circuit board is broken in certain areas.

Truck loss power turning off while making a turn into driveway with incoming traffic. Happen on several occasions. Diagnostic at dealership states high pressure fuel pump is leaking fuel internal making it run rich. NHTSA states this model truck has had previous recall.

Driving down the expressway at 65MPH, and the Vehicle completely stops, almost causing a collision. After researching the problem at the GMC Dealer, it appears that the entire engine has internally failed. Apparently it was a Complete Engine Failure.

The transmission failed at 59,700 miles. The transmission will shift up and down by itself. The transmission is revving up when trying to pass and the vehicle will go limp for a few seconds and then the gear with kick in really hard. In stop and go traffic the transmission slips constantly and could cause an accident due to the limp mode.

The contact owns a 2015 GMC Yukon. The contact stated that while depressing the brake pedal, added pressure was needed before the vehicle came to a stop. The contact stated that the vehicle hesitated or jumped before coming to a stop. Additionally, the contact stated the transmission was slipping. The contact stated that while driving at various speeds, the vehicle stalled before self-correcting. The contact also stated that while idling at a stop light and attempting to accelerate, the vehicle hesitated, but gradually accelerated as needed. The contact stated that the rear taillight intermittently failed to illuminate. The contact stated that the check engine warning light was illuminated. The transmission fluid was flushed; however, the failure recurred. The vehicle was taken to the dealer who diagnosed the vehicle and determined that the transmission was fractured, and the light bulbs needed to be replaced. The transmission was not repaired or replaced. The headlights were not replaced. The dealer confirmed that the brakes were included in NHTSA Campaign Number 19V645000 (Service Brake, Hydraulic) and the vehicle was repaired; however, the failure persisted. The vehicle was driven to the residence without further repairs. The contact stated that the vehicle had become inoperable. The manufacturer was not informed of the failure. The failure mileage was approximately 195,846.

The contact owns a 2015 GMC Yukon. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with compression in cylinder 7, resulting in damages to the engine. The contact was informed that the engine needed to be replaced. The vehicle was repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling), but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 100,000.

Started my 2015 Yukon XL, drove approximately 6 miles to get gas and was to head out onto the highway. After gassing up and starting engine it began to idle very rough with a shake going on and ticking noise. No previous signs of any issues. Slowly drove back to my house at 20 miles an hour and called Mandal GMC dealership. They suggested having it towed to them for inspection. Upon inspection they said the AFM/DOD #1 exhaust lifter was bad and needed replaced. They replaced all of Bank one lifters and said their was no damage to camshaft. Drove it that night after repairing it and everything seemed fine. They called the next morning and said when they started it up the ticking was back again. They then supposedly took off head cover and inspected the camshaft again and said it was damaged and I would need a new engine to the tune of $18,000.00. I purchase it in 2021 from them use and paid $33,000.00 and now still owe even more than the engine repair. I said it would cost more than the vehicle was worth and they had done $4,000.00 of repair that didn’t even get the issue fixed. I am a senior on Social Security and can not afford to continue to pay 20,000.00 for the loan and then another $18,000.00 for a faulty engine design that caused the problem in the first place. May have to join the thousands of others in the class action to get GM to not put out such untrustworthy engineering. Now $37,000.00 piece of Yard Sculpture !! The morning that it occurred was the first sign of flashing engine warning on dash.

The Yukon was driving normally and just lost power while driving 55mph on the highway. Then I got off the highway to pull over and check it out and the Yukon started shaking while running and in Park. The truck would not drive over 30mph without shaking and what sounds like misfiring.

With my child in the car, on a highway with no shoulder, I experienced lifter failure. It caused the vehicle shake and lose power with cars driving behind me at 55-60 MPH with nowhere to pull over. The engine just stopped as I was finally able to make it to a driveway safely. Problem was identified by dealership and my engine had to be rebuilt. I purchased the car second hand 3 months prior with no warning or symptoms. The car was inspected at the dealership by the extended warranty company rep. The extended warranty only cover a portion of the cost. The collapsed lifter cause damage to the camshaft and bent rods. The car only had 107,000 miles. If I were not able to pull off before the engine stopped, my daughter and I could’ve easily got rear ended on a Major state highway. The car was difficult to control due to the engine shaking the entire SUV.

Fuel line rubs between cab and tank making a hole. Fuel pours out on when driving or running. Huge fire risk. Glad I caught it before the car burned up with us in it.

The contact owns a 2015 GMC Yukon. The contact stated while driving 5 MPH, the brake pedal was depressed, but the vehicle failed to stop as intended. The brake warning light was illuminated. The contact stated that the brake pedal was depressed to the floorboard. The vehicle was slowly driven to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that the failure persisted. The contact associated the failure with NHTSA Campaign Number: 19V645000 (SERVICE BRAKES, HYDRAULIC). The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.

2015 6.2l yukon lifter failure oil changed 2000 miles ago and lifter failed and possible cam damage due to AFM lifter failure vehicle has 115,000 Miles and Gm knows about these lifter failures that can blow engines and cause serious accidents due to rapid loss of power and controls that GM already knew paid alot of money as a certified pre- owned and failed to disclose lifter defects to their customers now at shop for complete inspection and now needs possible new engine when all service requirements were met now looking at thousands of dollars for repairs if known i would have not bought the vehicle. And deceiving GM customers , currently waiting for diagnostic in writing but the courts approved recall already from same issues on 2019 and newer but same lifters are in the same 2015 AFM system

Steering jerks sometimes transmission would not go into gear just raves up and then there’s times when it drive normal transmission bangs shifts hard stutters late shift driver assist blocked

Trailer braking system warning is incessantly going off, without cause. Extremely distracting. No way to stop it. Truck has never even towed / trailored anything. Has happened multiple times over the last 6 months. Today occurred 26 times during driving

My vehicle started out with a rumble and driving rough. Then it started jumping out of gear. Took it to Transmission shop and they said the have had a lot of SUV’s of the same model with the same problem. It was the transmission. Had it fixed, with a hefty price of 4,900 dollars.

The contact owns a 2015 GMC Yukon. The contact stated while the vehicle was parked, there was an abnormal odor coming from the inside of the vehicle. No warning light was illuminated. The vehicle was taken to an independent mechanic and was diagnosed with a fuel pump leak. The contact was informed that the fuel pump needed to be replaced. The contact researched and became aware of an undisclosed recall however, the VIN was not included. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 226,000.

Loss of power steering, loss of abs, loss of cruise control, loss of forward crash assist, loss of lane departure, lose of side detection, oil leak from oil cooler line connection leaking down engine, potential fire, parking sensor, arm rest phone charger short circuit potential fire, wires pinched off at hinge point of center counsel, trailer brake system, stabilitrac, all current errors make vehicle unsafe to drive, ongoing issues since purchase including service reports of the same issues from previous owner

My vehicle is currently in the shop getting the motor worked on for a bad lifter. From the information the mechanic provided me this is a common issue with the vehicles that have the Active Fuel Management system. They are seeing many of these vehicles have to come in and have very expensive repairs. My first quote I received was $16, 000, they told me I needed a whole new motor and this assessment cost me $365 and a rental car while they looked at the truck. Now it is in the shop again and the estimate is $6000 to machine the cams as there are metal shavings in my oil. I had to again rent a rental vehicle and have not had my truck for a week. This is the third mechanic that has seen multiple of these motors have to be replaced or repaired due to this issue. I kept up on my oil changes and other recommended car maintenance and so did the owner before me. I had my last oil change approx. a week before the loud ticking noise began, then my vehicle began to have a noticeable loss of power when driving and eventually began shuttering and my check engine light began to blink and I took it to the shop. A year ago I had to replace my tail lights. I was able to find where others were recalled by my VIN for some reason was not included in the recall. They started shorting out and working only part of the time which is very dangerous when stopping, especially at night. I had them replaced and paid almost $700 for the two back lights.

Gas line leak

The brakes are hard to push to come to a stop. I brought it to a mechanic and he said it was my vacuum pump. The air bag light comes on when you hit a hard bump in the road.

1) Wiring harness to the wireless charging pad on the center console that is wired through the door hinge. Shorts out when opening or closing center console. 2) Caused a fire that led to smoke and melted components inside center console hinge. Caused smoke and awful plastic burning smell while my kids and I were parked. I had just started the vehicle. My two kids and I had to jump and run from the vehicle. 3) No, but by many forums that dealers and mechanics are aware of this issue and charges you hundreds to fix it when it is MANUFACTURE ERROR. 4) This vehicle has been inspected many times. By all the other inspection laws Missouri has in place. How has it gotten passed many times with this known issue? 5)NO! This put mine and my kids life at risk. It is a known and wide issue yet no one takes this seriously. As it just affected me and my two children, I hope this is taken seriously. Hold manufactures responsible and dealers for selling vehicles with these known issues. Protect people.

While I’m parked or even driving I keep getting a alert on my speedometer ( Trailer Break System ) and it’s not a 1 time alert the whole time I’m driving it’s constantly alerting me yet I don’t even use my Trailer system at all, it’s concerning due to the distraction of trying to clear the screen constantly while I’m on the high way.

My 5 children and I experience a traumatic experience in afternoon traffic as my 2015 GMC Yukon failed to pick up speed while waiting to make a left turn at a traffic light. The vehicle - no matter how hard I pressed on the gas didn't accelerate immediately which almost cost an accident. The vehicle rode smoothly for a few minutes then out of nowhere - it started jerking and stuttering bad for 15 seconds or so then would go back to riding smooth. When pressing the brakes - it seems to "lock" to a certain extent, so I have to press really hard on the brake to slow down/stop the vehicle sometimes makes a strange noise when doing so. I took the vehicle to be accessed by a service center in my area - it was at that time that I was told that my vehicle issues are known common GMC issues in these vehicles & more unfortunately. It's unfair to be penalized with an expensive transmission repair when these issues are known to the manufacture but not the consumer - despite being "VIN specific" as told by GMC customer service. This vehicle is needed as it is utilized to transport my children however, it's unsafe at & parked in my driveway. I was directed to reach out to GMC for remedy of the identified issues.

Air intake stayed on after shutting vehicle off and locked. It seemed it was in auto start mode from the key fob. Now it is hesitating to go and struggling to switch gears. Local mechanic is unable to pinpoint issue. Will bring to GMC dealership next. The rear camera intermittently works. If you open and close it sometimes it will fix it. USB ports intermittently work. Both taillights had to be replaced due to intermittently going out. Both front heated seats only work on top.

My breaks stop working in drive through, pulling in parking spots, backing out, slow speed of traffic. I found out it's the power break vacuum pump. It then says Service brakes on my dash when it occurs. This started about 2 weeks ago.

UPPER ARM CONTROL SCREW LOOSENED UP. Drilled hole on axle.

Both tail lights fail. I just bought this vehicle at Ewald Automotive in Oconmowoc Wi a month ago with 100k and I know they were aware of the problem and so is GMC. I am not paying 900 bucks for each tail light. They are absolute junk. The left side someone already messed with it because there is electrical tape on it. Ewald laughed in my face.