GMC Yukon owners have reported 78 problems related to power train (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Yukon based on all problems reported for the Yukon.
Transmission shifts are very rough in slow traffic with as much as one to two second delays in shifting into gear with a loud thump. It is so rough that it feels like someone may have ran into the your back bumper. It is also bad enough that it startles the driver and could be a safety issue. Gm is saying that this is normal for this eight speed transmission. If my car, the one I'm driving now, had this same problem I would definitely replace the transmission. This is a 2017 denali with less than 5000 miles on it. Online there are many complaints about this and it seems that gm is trying to wait the public out now that the new vehicles have a new ten speed transmission. The dealer told me they could not fix the problem and we would have to live with it. Again, this to me is a major safety issue.
See all problems of the 2017 GMC Yukon .
Transmission dipstick tube breaks easily. Vechile was stationary.
See all problems of the 2011 GMC Yukon .
Active fuel management system in 2015 GMC Yukon denali xl-- engine was running in traffic and stalled out at intersection making a turn. Dealership diagnosed as bent push rod, broken valve spring, broken lifter. This has been linked to faulty active fuel management system with GMC engines. There is an active service bulletin from gm concerning this problem. Under existing powertrain warranty, gm agrees to fix the broken engine components, but will not address the underlying root cause of the problem, the afm system. The gm customer service rep stated that it is not gm's current policy to address the afm system even though it is a known problem. The dealership service department agrees this is the problem. Documentation online from other consumers validates that this is a widespread issue. It is a safety concern because unless the afm system is addressed, there is a risk the engine will fail in traffic. I feel like gm is unwilling to address this issues because there is no easy, cheap fix and the problem is so widespread in its vehicles with afm systems. It is a potential public traffic safety concern as these engines age.
See all problems of the 2015 GMC Yukon .
The contact owns a 2008 GMC Yukon. While driving approximately 60 mph, the vehicle stalled and the traction control and reduced engine power indicators illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the fuel control module and the body control module were faulty and needed to be replaced. The technician replaced the fuel pump, but the failure recurred. The dealer (allen gwynn Chevrolet, glendale, CA, 844-636-8480) scheduled an appointment. When the contact arrived for the appointment, the technician stated that there was no recall. The manufacturer was made aware of the failure and stated that nothing could be done. The vehicle was not repaired. The failure mileage was approximately 115,000.
See all problems of the 2008 GMC Yukon .
On 11/5/17 my 2004 GMC Yukon xl was involved in a severe collision where my truck hit another vehicle both vehicles were doing 55+ mph. My front end took all my damage. Not one airbag went off in my truck.
See all problems of the 2000 GMC Yukon .
The contact owns a 2006 GMC Yukon xl. While at a stop, the vehicle lost power and the traction control warning indicator illuminated. The vehicle accelerated eventually. The failure recurred several times. The vehicle was taken to an independent mechanic who performed an on-screen driving test, but was unable to find the failure codes. The dealer was contacted (john paul's GMC, greenfield, WI, 414-482-6246) and the technician stated that the failure could not duplicated because the dealer used the same diagnostic system as the independent mechanic. The vehicle was not taken to the dealer. The manufacturer was not made aware of the failure. The failure was not repaired. The failure mileage was approximately 180,000.
See all problems of the 2006 GMC Yukon .
I was recently in an accident at a stoplight. When I arrived at the stoplight something fell out of passenger seat onto floor. I put the truck in park, took off my seatbelt, leaned over to pick up item and put it back on the seat. I then put seatbelt back on and put foot on brake and put the truck into drive. It all happened pretty quickly and can't swear to the specifics but I think the truck may have "jumped" a little when I put the truck into drive and propelled me into the car in front of me at a very low speed. The reason why I believe this happened is that I had previously asked the local GMC dealer service center if there were any recalls or other reports on this type of thing happening because it happens with my truck. I had been experiencing this "engine jumping" upon putting it into drive issue for several months.
Over the past four months my 2012 Yukon has been hesitating / stopping. I have accelerate into in the intersection and vehicle hesitated almost causing an accident. The check engine light has came on and off numerous times, flashing stabilization and traction switching on and off. I have taken it to the dealership at least five times each time they said there was nothing wrong with my vehicle second to the last time they stated I needed a new fuel pump which they replaced and the problem continued with in two days and continues to this day . The last time I took it in they stated there is an issue with gm vehicles from 2013 to 2017 causing stalling hesitation lack of performance in a setting in high ambient temperatures and there is no fix for it . I believe this is a great safety risk for individuals who live in high climate areas .
See all problems of the 2012 GMC Yukon .
The contact owns a 2008 GMC Yukon denali. While driving approximately 30 mph, the vehicle idled, but failed to accelerate. The contact had to pull over to the side of the road and shut the engine off. After a few minutes, the vehicle restarted and was driven home. The vehicle was towed to the dealer where it was diagnosed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 102,000.
When approaching a toll booth on the mass turnpike,with several lanes merging, with the vehicle almost stopped,it downshifted to 1st gear and in the process lurched forward extremely violently to the point I almost crashed into the car merging in front of me-probably stopped short by six inches or less !!!.
Since 2009, I have been taking my 2005 Yukon denali to both dealerships and other mechanic shops to fix a very hazardous problem. To date, no one has been able to fix the problem. When accelerating from a stop or anytime when traveling between 1- 2-3rd gears, the accelerator will suddenly stop working and the "traction active" light will come on. For approximately 10 seconds, the car will not accelerate. This started happening infrequently - 1 per month - and over the years has become much more frequent - 2-3 times a week. This does not happen when the road conditions change. It can happen at any time under any condition. The scary thing about this is that when you are accelerating from a stop and other cars are accelerating behind you, they don't anticipate that you will stop accelerating (the brake lights do not come on), therefore, they almost rear end me. It is a very dangerous situation. My dealership does not know how to fix it, yet there are complaints all over the internet about this same problem. I have just filed a case with gm for assistance. We will see what they do. I believe a recall is long overdue. While we have not gotten in an accident, that is simply because we have been lucky.
See all problems of the 2005 GMC Yukon .
Since the day I purchased this 2016 GMC Yukon xl denali there has been a vibration in what I think is the passenger rear end. I've taken it in 3 times and each time the dealer and the gm representative say it is "within spec. " this problem has persisted. The vehicle is now almost un-drivable due to the shaking. It affects the steering wheel at all speeds. This happens at all speeds on all terrains. This happens when the vehicle is cold as well as warm/hot. The vehicle will sometimes jerk to the left or right when the shaking gets real bad. This vehicle is becoming dangerous to drive but I have to use it. I am not the only one with this issue and would appreciate some help.
See all problems of the 2016 GMC Yukon .
Reduced engine power mode on hwy at 70 mph.
See all problems of the 2003 GMC Yukon .
Replaced transmission with dealer 2 time.
There is an error message that displays on the dash for myself and thousands of others who own GMC/chevy trucks with these motors. They have a defective throttle position sensor with the truck where it says "reduced engine power". I've found 2 technical service bulletins that somewhat address the issue, but many people take their trucks to mechanics and dealerships to get the issue fixed and spend thousands of dollars in repairs and troubleshooting to get the issue resolved, to no avail. The 2 technical service bulletins that I found were #pip3089b (dated 10/31/2006) and #pip3042a (dated 8/30/2004). I've seen on many many forum posts about this issue and possible fixes, which when I read deeper into them, seem to not be true fixes.
Wife and three kids in vehicle, stops on hill seems to have shifted into neutral. Goes backwards down hill flips over lands on roof. No injuries thank god! vehicle had been back for transmission recall twice, the last time they said they had to wait for parts. . . Mind you the vehicle is brand new. Someone needs to get these off the road now!.
The contact owns a 2003 GMC Yukon. While driving approximately 50 mph, the vehicle experienced independent deceleration and the reduced engine power warning indicator illuminated. The vehicle was previously taken to an independent mechanic who diagnosed that the fuel pump, spark plugs, transmission, and alternator needed to be replaced. The vehicle was repaired, but the failure recurred. The manufacturer was notified and transferred the contact to NHTSA. The failure mileage was approximately 100,000.
Tl-the contact owns a 2004 GMC Yukon denali. The contact stated that while driving approximately 60 mph, the vehicle stalled. After several attempts the vehicle restarted. The failure recurred numerous times intermittently. The vehicle was taken to a dealer for diagnostic testing. The mechanic replaced the tac module and electronic throttle body. The failure recurred. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 120,000. Ak.
See all problems of the 2004 GMC Yukon .
While sitting idle my vehicle suddenly went into reduced engine power mode. I was able to get over and pull off the road and shut off the car. 5 minutes later the car started like there was no problem. Over the next few days the rep warning would show up and my car would suddenly lose power. I was crossing the road during one incident. However, when I would shut off the car and restart the check engine light would go away as would the rep warning. After a quick review online it is easy to find hundreds of people who have a similar issue. Gm will only diagnose and if the light is off when you get there there is nothing for them to do except take your money and say good luck.
Very concerned about my 2015 Yukon XLT. The vehicle's gear shifted to a neutral of very low gear (not very sure) as I was driving down a long hill near birmingham, al. It felt like it went to first gear, but at the same time it did not slow the vehicle down, almost felt like the gear was grinding. The truck did not catch back into normal gear until the vehicle leveled back at the bottom of the hill. (it was extremely scary and worrisome ever since then, the transmission will not shift smoothly.
Our vehicle has a significant vibration in v4 mode when traveling between 45-65 mph and above. The vibration is also accompanied by increased cabin pressure. These issues are causing headaches, nausea, dizziness, and are further exacerbating my wife's multiple sclerosis. We also have a popping sound coming from the rear of the vehicle's suspension when turning that makes us feel unsafe. The vibration started right after we took delivery of the car and has only gotten worse. We bought the car in April 2015 and the issue continues unfixed to this day. The popping noise started about 3-4 weeks ago and it sounds like a suspension component. Our ac recirculating feature also does not work and it allows harmful exhaust smoke in.
Traveling at about 25 mph in a residential neighborhood, the engine and stabilitrak lights came on and power abruptly cut out. Luckily no one was behind me and I was safely able to pull to the side of the road. I can only image what might have happened if this had occurred on a busy freeway or a crowded intersection.
See all problems of the 2007 GMC Yukon .
My 2005 Yukon xl will, at random, shift itself into 4 wheel lo. It happens while driving and at speeds of 30+ mph. All of the lights on the push-button 4wd control module will light up or flash. No amount of button-pushing will disengage 4 wheel drive. I the car will slam to a 5 mph crawl when it does this. Also the traction control system deactivates at the same time. Has happened over 40 times now.
While my wife was driving on the interstate highway at 55mph, the SUV check engine light came on, followed by a traction control warning on the display, then the vehicle went into "limp mode", reducing power and speed to approx 20 mph. She turned on the hazards, and moved into the right lane as other vehicles went around her at the posted speed limit as the engine was bucking and missing. She exited the highway and limped the truck, barely getting up to 20 mph to a service shop. They scanned the codes, the only one there directed them to change the throttle body, ($580). The vehicle ran good for 3 days, then all the same bells and whistles came back. GMC service said they have no knowledge of a problem. Upon researching this online, I found it's far from uncommon. If this has not caused an accident yet, its only a matter of time. .
The new 2015 vehicle freezes up in full time 4wd mode and will not shift out. The dealer indicates that it is a "known problem by gm" and that they are "working on it". Their fix at this point is to have you run the vehicle in 2wd mode which is an obvious safety issue during our winter months as it is then a rear wheel drive vehicle being driven on icy roads. The other fix is to run it in 4wd mode but turn it into 2wd mode every time you turn the vehicle off. Obviously, many drivers will forget to do this and therefore my family at times is just running it in 2wd mode thereby incurring a risky driving situation. Despite numerous discussion, I have not been able to get any information on when the vehicle will be fixed.
|Problem Category||Number of Problems|
|Power Train problems||
|Automatic Transmission problems||
|Transfer Case problems||
|Transmission Failure problems||
|Differential Unit problems||
|Transmission Gear Slipping problems||
|Automatic Transmission Column Shift problems||
|Axle Assembly problems||
|Power Train Driveline problems||