GMC Yukon owners have reported 106 problems related to vehicle speed control (under the vehicle speed control category).
My vehicle was in motion driving on the freeway at 70 mph when all of the sudden my car lost power to 30 mph all the way down to 5 mph. I pressed on the accelerator trying to gain speed without success the car did not accelerate more than 30 mph, no matter how much I pressed on the accelerator. When I looked down at the dashboard I saw two warning lights go off "stability sys disabled" followed by "reduced engine power" luckily I was able to move to safety. The road was dry and no bumps to disable stability. The traction control in this vehicle is located far from my steering wheel so I know I did not accidently hit the traction control by accident. After I was able to pull over I was advised to hit the traction control button to see if that would fix the error in the dash. That did not work. I immediately took it to the dealer concern for my safety and that of my family. The dealer has had my for several days returned my car back once stating that it was due to master air flow sensor along with the air filter once those parts were replaced I picked up my car as soon as I picked up the car and drove it around the corner I experienced the same issue. I drove it back to the dealer at 5 mph as I was not able to go any faster no mater how much I pressed on the accelerator. 2nd time the car was returned to me I was told it was just the butterfly in the throttle body and that it was replaced for a new one. I was driving away and got just a little farther than the first time when I got the same error message again I drove it back to the dealer and they told me it was a faulty throttle body they replaced that but its still having issues. I believe this to be a safety hazard while driving I want this noted in case there is a major accident with fatalities.
See all problems of the 2006 GMC Yukon.
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.
When pressing down on accelerator to get into traffic flow something sticks so that the engine runs at high speed until you kick the pedal two or three times to release what ever is sticking. Has happened multiple times.
I was on the highway driving through boston in the fast lane, going about 70mph when all of a sudden the stability control light came on with the check engine light and the engine reduced power light and my vehicle totally lost power to the gas pedal. I was able to get into the slow lane but my vehicle was not able to go faster than 35mph and there was hardly power to my gas pedal. Luckily, I made it to an off ramp, as I started to come to a stop, the engine was running very rough and it felt like it was shaking the vehicle back and forth. I barely made it into a empty parking lot and shut the engine off. I managed to make it to my mechanic, who got a throttle sensor code from the engine. He told me about a special coverage adjustment #12273b from GMC, regarding this exact issue and told me to take it to GMC. GMC told me, my vehicle isn't listed for this adjustment, even though, it says it should cover 2008-20111 GMC Yukons. Apparently, GMC said my VIN isn't listed as having the faulty part. I almost died this morning in the fast lane in boston with the exact problem GMC describes in the 12273b. GMC said I'm not covered and have to pay out of pocket. Obsurd.
See all problems of the 2011 GMC Yukon.
The contact owns a 2007 GMC Yukon xl. While driving various speeds, the vehicle suddenly decelerated and the stability track warning indicator illuminated. The contact had to restart the vehicle in order for it to operate correctly. The vehicle was not diagnosed or repaired. The failure recurred. The manufacturer was not made aware of the failure. The approximate failure mileage was 150,000.
See all problems of the 2007 GMC Yukon.
The hydraulic lifters �afm� collapsed, lifter was in locked position causing lifter to tap on camshaft, by taping on camshaft caused DE-lamentation of hardening on camshaft, which damaged camshaft and lifters. The acceleration and DE-acceleration of the vehicle became a major safety issue. The vehicle went from v-8 mode to v-4 mode, this abrupt reduction in speed would happen and did happen while driving on major roads in the city. Because the v-8 lifters would shut the cylinders off, v-8 mode would stay in locked down position causing vehicle to almost come to a complete stop.
See all problems of the 2013 GMC Yukon.
Stability control disabled comes on with engine power reduced. This happened as I as driving in the highway. Speed drastically reduced form 65 to 10 mph. I could have been killed. Gm is aware of this problem and will not act until there's a fatality because of this issue. This is criminal. Nhtsa has received numerous complaints regarding this issue and has not acted.
See all problems of the 2004 GMC Yukon.
There is cracks appearing on the dash all along the airbags housing compartment and part of the air bag is exposed . I'm very afraid that the airbag will go off while I'm driving because the dash is so cracked it's barely holding the bag in . I'm also worried it will affect the safety components and not work in an accident because of it being exposed to some elements due to the cracks. My vehicle has been garaged kept and always professionally maintained so it's not something we did or did not do I believe it's cheap material on the dash causing this to occur. Another big issue is the gas and brake pedal are adjustable and have completely come undone and fallen off the adjustable mechanism while I was driving . I called the company and she said someone would contact me soon and it's been a month I've yet to hear from them. It was a terrifying ordeal to be driving and all of a sudden you can't accelerate or brake . I was so scared for my children's safety as we were all in the car driving down the road when this happened.
Speedometer randomly sticks, or accelerates to maximum. Oil pressure gauges max out as well. Very dangerous to drive with no concept of speed, and also very illegal. When I stop the vehicle, I can turn off the engine. If I continue to turn the key 90% (but not enough to start the engine), and let off, the gauges will drop up to 5%. After 5 minutes of resetting the instruments, the gauges will reset. However, the next time I drive I might be going through a school zone at 40 instead of 25, but my speedometer says 80. Clearly unsafe.
See all problems of the 2003 GMC Yukon.
When driving whether highway or city streets, the car will without notice slow down to about 15mph. A code of "reduced engine power" is displayed on the dash. The car will not go any faster than 15mph, even with you foot on the gas petal. I have had the car in the shop more times than I can count. They keep replacing different parts thinking that it would fix the problem. Almost within a week after being in the shop the same thing happens again without notice. I have noticed that other people are having the same problem. I treasure my kids and I do not want this to happen whenever I am on the freeway going 60 or 70 mph and a semi truck runs into the back of me whenever this happens without any notice. Apparently GMC does not know how to fix this problem. There needs to be a recall on this particular GMC model. Is it gong to take the loss of someone's life before the NHTSA takes a stand on this isssue. I have spent over $2000. 00 in repair bills and have the same issue just this past week. I believe that GMC should isssue a recall on this problem and they repair at the their cost.
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.
I keep having the display say "reduced engine power". I'll be driving on the highway, doing 65 in rush hour traffic, when all of the sudden the accelerator no longer accelerates and it displays "reduced engine power" on the gauge cluster display. From what I've seen online it appears to be an issue with the throttle position sensor on thousands of other similar vehicles with the same engine, chevy suburban's, silverado's, tahoe's, etc. I replaced the throttle position sensor and the harness (because I heard the harness might also be an issue) and I am still having the same problem with my truck. It has done it over a dozen times on one trip back from work (80 miles for me). I have to pull over to the side of the road (if possible) and turn off the truck, then wait a short period of time, then turn the truck back on. This usually fixes the issue, but it did not help me when it happened to me in the tunnel and I was going 5 mph (top speed during the "reduced engine power" mode, once your drifting stops (because you drift, it doesn't engage the brakes). I was extremely worried that I wouldn't make it out of the tunnel without get rear ended, and once I made it out, I was just outside of the tunnel awaiting roadside assistance, it was very frightening, with my daughter in the car.
While driving today at a speed of 55 mph in somewhat heavy traffic my service traction control and stabilitrack indicator came on as well as a message on the dash saying the same. At which time my vehicle came to slow down and I lost power. I pulled over and and shut the car down and upon restart noticed that not only did white smoke come from my exhaust but the car had a rough idle the same indicators were still on and the engine light had now come on as well and was flashing. I was able to make it home with a rough limp however when I came to a stop felt as though the car was hesitant to keep running or take off. When applying gas there was a thump from the rear wheels like the transmission was not sure how to engage.
Tl-the contact owns a 2008 GMC Yukon. The contact stated that while driving at approximately 25 mph, while approaching a stop sign the brake pedal was depressed but the vehicle did not stop. The gas pedal was depressed but the vehicle did not accelerate. Another vehicle crashed into the front passenger of the contact's vehicle. The air bags did not deploy. The contact suffered a concussion and the pregnant front passenger sustained back injuries and received medical attention. A police report was filed. The vehicle was towed to an independent mechanic where it was not diagnosed or repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000. Sg.
See all problems of the 2008 GMC Yukon.
I will be driving and my truck will just lose power. I push on the gas pedal and it goes no where. I have to coast off the highway and then I can stop and turn it off for a few minutes then start it back up with the check engine light on. I have changed the tps 2 times, the entire throttle body, and the mass air flow sensor and it's still doing it.
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.
Tl-the contact owns a 2010 GMC Yukon. The contact stated that while driving approximately 30 mph, the reduced engine power, stabilatrack, and engine warning lights illuminated. The vehicle was unable to accelerate over 10 mph. The contact had then coasted over the emergency lane and shut the engine off. The vehicle had then restarted and the engine warning light was continuously illuminated. The vehicle was taken to the dealer for a diagnosis. The technician diagnosed that the throttle body needed to be replaced and an induction cleaning needed to be performed. The dealer also stated that the failure was common on the vehicle. The vehicle was repaired and the manufacturer was notified of the failure. The approximate failure mileage was 32,730. Pam.
See all problems of the 2010 GMC Yukon.
Low speed activation of abs brakes, on dry pavement, extending the stopping distance to an unanticipated length. Although a collision did not occur, the problem is on going. This sounds like the same circumstances which are included in the manufacturer's recall 05v379000. Even though we are not located in one of the 14 states included in the recall, our state does and has used salt and other corrosive substances to clear roadways of ice and snow for many years.
See all problems of the 2000 GMC Yukon.
I took my daughter to volleyball practice and when I stopped at a red light the car was accelerating even though I had my foot on the brake pedal and it moved on a jumping mode to the front. I got so scared. The car moved forward we could have been involved on an accident on an intersection or hit the car in front of us. As that happened I noticed in dashboard the rmp counter was moving up as if it was were accelerating. It was pretty scary my kids and I don't feel safe to ride on the only car we own. I had a mechanic tell me I should take it to the dealer because it's a safety hazard. That it seem to him as a throttle system failure and it was very dangerous. When I turn vehicle on it happens too.
This is twice that I've received the p2138 throttle body sensor code, which causes reduced engine power and has subsequent issues around stabilitrack/awd. The first time was in the middle of an intersection, we limped out of the intersection at 3 mph. Today, my wife limped home from the store. This is extremely frustrating and should have been recalled a long time ago!!.
While driving on the highway and keping up with traffic, I noticed my speed was 75mph. Slowing down to the posted speed limit I was suddenly getting passed up by everyone. It wasn't untill I exited the highway and while waiting at a stoplight I noticed the speedometer was reading 10mph (while standing still). Checking GMC and Chevrolet forums online, this seems to be a common problem and a definate safety concern. The reading on the speedometer while in park now varies between 10-20 mph, and I have absolutely no idea how fast I'm actually travelling while driving. I've made an appt with the dealer to have it checked out, and I'm sure the repairs will be expensive!.
Tl- the contact owns a 2011 Yukon xl. The contact was driving approximately 60 mph when the accelerate got stuck and the vehicle speed increased. The contact pressed the brakes and the brakes failed so the contact used the emergency brake which slowed the vehicle down, but the vehicle would not stop so the contact jumped out of the vehicle at approximately 35 mph which in a half mile the vehicle crashed. The vehicle was towed and the manufacturer was not contacted. The failure mileage was 70,000. Rk.
Without warning, check engine light, reduced power and stability system shut down dash board engine light came on and stayed on. Had engine code scanned (p2138, p0102) still problem is not resolved. Dealer was no help just wanted to sell parts that may fix it.
Without warning we experienced a total brake failure due to loss of brake fluid. Pedal went completely to the floor and it caused our vehicle to lose total speed control.
See all problems of the 2002 GMC Yukon.
Vehicle has been serviced several times since first occurrence in September 2014. "reduced engine power" and service engine soon signals appear on vehicle panel causing engine power to be reduced in a matter of seconds. Has happened to me going 10mph, 55mph, and 70mph on highway, causing a near rear collision because I lost power so quickly. I have had it serviced 6 or 7 times since September 2014 and this issue is not getting resolved. Throttle body sensor replaced twice, throttle body harness replaced, all wires, and sensors have been cleaned and thoroughly inspected. Reduced engine power occurs weekly even after being serviced.