2007 GMC Yukon: sudden loss of power

Filed Oct 11, 2020 · Fuel system · 214,000 miles · TX

On 10/08/2020 I was driving in heavy traffic at 5 pm when the engine lost power and the dash started flashing first it was turning off the stability control system and the next message was going into reduced engine power mode. At that point, the vehicle dropped to about 30 MPH with full throttle and I had to maneuver thru traffic to get off the freeway. Not easy to do with a car that will only do 30 MPH or so. With caution lights blinking and waving at cars I nearly got rear-ended twice before I could get off the freeway.

Filed Oct 4, 2015 · Brakes, Driver assistance · 53,000 miles · CA

While driving on surface streets, the yellow ABS warning came on, "stabilitrack" light came on. The warning lights started dinging, the transmission slammed between gears, the lights came and went and the door locks were going up and down continuously. Lost power also, pulled off and shot off engine. Truck would not restart as electrical system was dead. Same thing happened 10k miles earlier. This has happened 2times and the car only has 53,000 miles. Repairs took over 10 days as the engine was not communicating with the car. Replaced engine control module

Filed Oct 4, 2015 · Brakes, Driver assistance · 43,497 miles · CA

Driving through town when the car started slamming into gear. Right before, the ABS warning light came on and the dash said "stabilitrack disengaged". Car started beeping and lost power. When I was able, pulled over and shut down car. It would not start. Towed it to the dealer and they had difficulty diagnosing. Ultimately replace ip junction box and fp gateway. Same thing happened again 10,000 miles later.

Filed Sep 18, 2015 · Driver assistance, Electrical · 135,200 miles · TN

My wife and I had just purchased a used 2007 gmc yukon. Little did we know about the major issue the truck has with the reduced power reading that comes up. I really think that gmc needs to put out a recall for these issues. My wife was on her way home from a work meeting and driving on the freeway with her sister and my wife's and my daughter in the gmc yukon and she was doing the speed limit and all of a sudden she didn't know what was going on. She called me and she was in a panic. She had to pull off the freeway and come to a complete stop and when she did the vehicle had died it turned off and she had our 2 month old daughter with out A/C and in 100 degree weather. This issue puts the people's families at risk that own these vehicles and also other drivers families at risk you can not replace a persons life if its taken away and the hardship it causes but you can replace a vehicle so why not come up with solution so the road may become a little bit of a safer place. When my wife had this happen other drivers were not courteous or understanding when someone puts their hazard lights on that something is wrong, they just kept flying past her. Now with several people having this same issue with the same gm make this issue should be resolved. I have looked up and saw chevy doesn't have this issue and chevy is the same company. If the national highway traffic safety association could create this recall and they could use the same part from chevy then surely this issue would be fixed and it would be a safer vehicle. If you were a company owner wouldn't you want to stand by your companies production and create solutions if there were these common issues? Wouldn't you want to help make the road a safer place by one little fix? It wouldn't

Filed Jul 21, 2015 · Engine, Fuel system · 174,900 miles · WI

While driving to work on the interstate I approached slow moving traffic. Upon slowing down my vehicle displayed the following messages: "service traction control", "service stabilitrack", "reduced engine power". The SUV would not accelerate over 15mph requiring my to pull to the side of the road. The vehicle shook violently until I was able to put it in park and turn off the engine. After 10 minutes of sitting on the side of the road I stared the engine again. The SUV started right up but the "check engine" light remained on. This was a terrifying experience on a busy stretch of hwy 88 outside of chicago. I hope others do not have to go through this experience.

Filed Jul 21, 2015 · Engine, Fuel system · 175,500 miles · WI

This is another incident that occurred the same week as my last complaint. While driving home from lunch I slowed the vehicle as I was going down a hill, this did not require any use of the accelerator pedal. Upon slowing down my vehicle displayed the following messages: "service traction control", "service stabilitrack", "reduced engine power". The SUV would not accelerate over 15mph requiring my to pull to the side of the road. The vehicle shook violently until I was able to put it in park and turn off the engine. After 10 minutes of sitting on the side of the road I stared the engine again. The SUV started right up but the "check engine" light remained on until the following day. Engine codes lead to a faulty throttle body position sensor which was replaced after the incident on 7/13. I took my vehicle to the gmc dealer today who informed me of the same problem yet again. These are either bad parts or a some bigger gm issue.

Filed May 17, 2015 · Acceleration, Driver assistance · 117,000 miles · MD

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.

Filed Jan 21, 2015 · Driver assistance, Fuel system · 92,000 miles · MN

2007 gmc yukon denali. As I was driving...engine light came on, following with vehicle stability control, traction control disable then reduced engine power and it wont let me drive more then 20 MPH. Took it the dealer, replaced terminal wires, replaced bcm module ($1100). Two days later same lights comes back on dashboard...took it to the dealer and they told me I need throttle body replaced ($631). Then even more issues came, as you stopping for the stop light, but the truck jerking forward while foot on break and as stopping it makes a thud noise when slowing down. Contact gm said they'll be able to help me out but then they decline for any help and simply told me there is nothing they can do. Now dealer is telling me I need breaks, ball joints, up control arms, shocks. Truck has under less then 100k miles and most of these should last more then 100k. Even dealer admitted by saying I've never seen yukon denali going back. Its a safely issue. My wife will not drive this truck any more with 3 kids in it and now it just sits in my garage while making payments to this truck. Its ridiculous! Im sure there are someone out there that can help us and others who are going through the same issue before gm get a lawsuit and have blook on their hands.

Filed Nov 5, 2013 · Acceleration, Driver assistance · 105,000 miles · IN

Roughly 30 times since march my 2007 gmc yukon xl 5.3 slt has had the dreaded stabilitrack off, service stabilitrack, reduced engine power problem. You can be driving along at various speeds and the error will come on and you will be completely unable to accelerate. Leaving a very dangerous situation for my family. It has happened when pulling a camper and without pulling anything either. Gm refuses to help the many families having the same problems.

Filed Oct 9, 2012 · Driver assistance, Steering · 74,000 miles · TN · crash

Vehicle went into reduced engine power and crashed into fence. Vehicle goes into reduced engine power after 22 repair attempts and on highway at 70 miles per hour with children in car this is an extremely dangerous situation. My vehicle was damaged from the reduced engine power and at this point it is unable to be solved permanently to stop the vehicle from going into reduced engine power. It does it whenever and wherever without knowing. Goes from high rate of speed to zero. Almost had a semi slam into myself on the interstate. I could not pull over. Have had every part replaced and dealership is at a loss. Needs to be a recall due to inability to solve the problem.

Filed Sep 5, 2012 · Acceleration, Driver assistance · 52,000 miles · NM

Was driving down the freeway and the vehicle warning bell rung. On the vehicle heads up display read. Traction control, stability control and reduced engine power. The vehicle immediatly started shutting down with no power. This caused a near miss from behind from a tractor trailer vehicle.

Filed Feb 15, 2012 · Body, Engine · 70,000 miles · CA

I noticed an approximate 4'' crack on my dash between the windshield and steering wheel hump. I then noticed a similar crack emerging near the top left portion of the front passenger side air bag. I thought maybe the employees where I get my car wash were applying too much pressure. However, after looking online to buy a new dash, I found that I was among many gmc owners that have the same issue. I dont think it is a coincidence that we all have the same cracks, in the same location on the dash. Also, the chrome plating on both my driver and front passenger inner door handles is peeling off. I heard that exposure to the sun may be a cause, however, my two front windows have had 5% tint on them since I bought it. Also, I just got my vehicle back from the dealership because of check engine light issues. The problem is fixed for now, however, after researching online it seems like there are hundreds of gmc yukon owners experience very similar issues with their vehicle's engine. I keep reading about the "reduced engine power" and "service stabilitrak" warnings.