general problems of the 2008 GMC Yukon

It started shutting off at a light for autostop. But when it would turn green it would intermittently just drop out of autostop without restarting. Then may start back up or maybe not, many time after restarting at the light it would died in the middle of the inspection. A parasitic draw kept killing the accessory 12 v battery replaced the 12 v battery but the problem continued. When the truck was running it would run flawlessly,before stalling. The code said to replace the auxiliary fluid pump. I had it a new auxiliary fluid pump installed. After this the vehicle wouldnt crank. They then worked through a service bulliten fixing a list of areas were the harness was chaffed and shorted. The truck has been out of commission the past 10 months and intermittently started twice during this time, it ran rough for 5 mins and died out at the first stop sign and wont crank again. Some times it will crank but not start.

Truck stop without any warning for no reason oil is leaking from the truck for no reason just got it not long ago.

Vehicle will jump forward when going into auto stop as if you are sitting at a light behind someone you would hit them, sometimes going down the road when going into hybrid mode it will stall and start jerking forward and steering locked up wouldn't turn witch would cause to run into someone.

Truck stalls on take offs ,at times it jumps on take offs to where you have to lock the brakes up . At times you can smell the hybrid battery getting hot ,there times it wont start up ,im afraid my wife will leave a light and it will die and her getting hit because of it ive seen many complaints on these truckd.

Intermittent electrical issues. Doors locks and windows don't always work. Sometimes when I shut my car off it dies. Like I can't turn it back on. Running boards don't go up, can't lock it, nothing. Dead. Then 15 minutes later it's fine. Sometimes when driving, it's like it's cutting out, not getting enough power or different warning lights will randomly flash. I just never know when it's going to be working properly. I'm just afraid something will happen while we are driving. We also use the Yukon to tow a trailer. I need to be able to depend on it. The shop can never duplicate the issue and they just look at me like I'm crazy.

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.

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.

Driving at 70 mph on highway. Vehicle gauges begin to act erratically, vehicle heaves and lurches, then 100% power failure. Nothing worked, even hazzard lights. Airbag light flashing on and off. Was able to put vehicle in neutral and move to the side of the road where the vehicle stopped. There was no power at all, had to manually open door locks. After 10-15 minutes, the power came back on and I was able to restart the vehicle and drive home. Happened again on 3/23/14. Again driving at highway speeds, the electric components (radio, gauges, power cord accessories) begin acting erratically and then 100% complete power failure while driving. The gm dealer cannot duplicate or find the problem. I feel 100% unsafe in the vehicle especially with my kids.

Was waiting for a red light to change and suddenly my dashboard lit up saying it was reducing power to the engine, disabling stability control and something else. . I was not able to drive the car for for 2 hours after that. . . I. Got the car towed to my house and when I went back to fallowing morning the car started with out the engine light on. . 2 days after the same thing happened while driving on the highway at 65 mph, it was a scary experience since the car reduced power very fast to 20 mph. . Almost got into an accident.

The contact owns a 2008 GMC Yukon xl. The contact stated that the vehicle would only accelerate to 10 t0 15 mph. In addition, the stabilitrac, engine control module, and engine power reduced indicators illuminated. The contact was able to drive the vehicle onto the road shoulder. The vehicle was taken to southern green brier GMC (1300 south military highway, chesapeake, va 23320, 757-424-2418). The deaeler performed a diagnostic test that located failure codes p2122, p2138, and p2128. The dealer replaced the battery twice and the battery cables were replaced several times; however, the failure was not corrected. The contact also stated that the vehicle was taken to four unknown dealers who stated that the failure was due to an electrical failure. The manufacturer was contacted and provided case number: ca9-5353172313. The vehicle was not repaired. The approximate failure mileage was 20,000.

This is in regards to GMC bullitin #pip4112j : sag or hesitation on acceleration (normal operation characteristics) - (Jul 21, 2011) I've been having this problem since day one and took the SUV to many dealers but dealers could not verify the concern until now. The 2008 GMC Yukon xl denali would stop accelerating for 2-3 seconds when the gas paddle is pressed. Most of the time it is when I am trying to pass a lane, trying to enter highway, trying to climb a mild hill or trying to avoid a potential accident. After the delay, the transmission would down shift and I think it down shifts to either 1st or 2nd gear causing the SUV to roar like crazy and shoots out like a cannon. I had an incident where the cops gave me a warning with the lights and siren probably thinking that I was driving recklessly. There were also incidents where I've had the gas paddle pressed down about 80%-90% trying to climb a mild elevation and either the engine and or transmission started to choke. It was so bad that the denali almost came to a full stop. You really have experience this on your own to understand how scary and nerve wrecking it is when you have vehicles about to ram you from behind because the SUV simply would not accelerate. Many times, I had to swerve back in to original lane in fear of causing a serious accident. Because of this, I don't even let my wife drive the vehicle. Service manager was kind enough to research on this matter and found bulletin #pip4112j and he can't really do anything. I've been explained that due to large power from the engine, he has seen the rear of the vehicles break apart. I fully understand the service manger's position on this but I think this is a major safety concern and someone can seriously get hurt by this.