The contact owns a 2009 GMC Yukon Denali XL. The contact stated while depressing the accelerator pedal, the vehicle experienced delayed acceleration. The contact stated that the check engine warning light was illuminated. The vehicle was taken to a local mechanic but was not diagnosed or repaired. The manufacturer was informed of the failure and informed the contact that they were unable to assist. The failure mileage was approximately 90,000.
The worst 2009 GMC Yukon Denali XL problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Airbags7
- Body3
- Electrical3
- Engine3
- Locks3
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Airbags7
- Body3
- Electrical3
- Engine3
- Locks3
- Acceleration1
- Brakes1
- Transmission1
Recalls
No recalls on record for this model year.
Technical service bulletins for the 2009 GMC Yukon Denali XL 1,190
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Unknown or other
- New Vehicle Monitoring Programs Section in IVH
- Unknown or other
- This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
- Unknown or other
- This service bulletin provides a procedure to flush and bleed power steering system to correct a power...
- This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
- This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline...
- This service bulletin provides information on some vehicles that may rock or move slightly forward or...
What 2009 GMC Yukon Denali XL owners say
Most recent owner complaints, unedited.
Airbag service light is on, oil pressure fluctuation occurs and the vehicle pulls to the left when applying brakes after new brake pads and rotors were installed.
Takata recall. My denali has fallen ill to the well documented poorly engineered dash cracking, in my case around passenger airbag open. This creates an eminent personal injury safety hazard to front seat passenger. If a situation arose whereas air bag was activated, as airbag cover ejected, the dash becomes an instant instrument of capable of great bodily harm or even death, as shrapnel fills the cabin, from disintegrating dash plastic flying back, in certain injury to passenger. Gm is well aware of the defect, yet refuses to acknowledge.
In jan. 2018 noted crack in dashboard on drivers side. Also there was a small slit in middle of dash. In about 2 wks noted splits on passenger side of dash. ? When it happened.
I purchased my vehicle used. Its the same problem so many others are having. My dashboard is cracked on both drivers and passengers side all the way to the airbag. We have extremely concerned that if the airbag goes off, that whoever is driving or a passenger will get hit with pieces of plastic from the dash causing serious injury. I could keep passengers out of the front, but the driver I cannot..we need to have this repaired. I work at a honda dealership and have been advised that this is a safety concern.pax side had a small crack when purchased but it is now about 3 inches long each..
Tl* the contact owns a 2009 gmc yukon denali xl. While stationary, the dashboard of the vehicle became cracked across the air bag section. A dealer was not contacted. The manufacturer was made aware of the failure and provided the contact with case number: 8-3684476402. The failure mileage was approximately 54,000.
I was driving on the highway and all of a sudden a message on the dashboard said ''engine power is reduced" and my engine shut off, brakes were hardly working and I could hardly steer or turn the wheels. My car copmletly lost control and I was lucky there were no cars by me otherwise an accident would have been inevitable. When I went to the dealer they told me they have no answer and they suggested to replace my ignition switch and camshaft sensor to begin with. No guaranty that it'll fix my problem they said. Reading online forums looks like I am not the only one. Please do something about it otherwise sooner or later lifes will be lost.
Dashboard is cracked on both the drivers side and on the passenger side to the airbag compartment. Did not have any accident or other damage, it just cracked. I am concerned that were the airbags to deploy that the dashboard fragments would become projectiles.
Dashboard is defective and a safety hazard. If the passenger airbag deploys it could send plastic shrapnel throughout the vehicle.
There has yet to be an offer to repair the defective airbags in our family vehicle. Other owners with the same issue are being sent notices to discontinue use by not allowing anyone to sit in the front passenger seat and to get it repaired immediately, and yet there is no such action for our family vehicle. We demand a repair be made available immediately. The vehicle is not safe and we can not fit our entire family in it without someone sitting in the passenger seat.
Compare the 2009 GMC Yukon Denali XL
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Questions about the 2009 GMC Yukon Denali XL
Is the 2009 GMC Yukon Denali XL reliable?
Owners have filed 22 complaints about the 2009 GMC Yukon Denali XL, fewer than a typical Yukon Denali XL model year.
What is the 2009 GMC Yukon Denali XL year score?
The 2009 GMC Yukon Denali XL scores 73 out of 100 (average). The score compares it with the other model years of the GMC Yukon Denali XL: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2009 GMC Yukon Denali XL?
Airbags, with 7 complaints. Next is body (3).
How many recalls does the 2009 GMC Yukon Denali XL have?
No recalls on record.
What year does the GMC Yukon Denali XL have bad airbags?
The GMC Yukon Denali XL model years with the most airbags complaints are 2011 (27 complaints), 2007 (21 complaints) and 2008 (17 complaints).
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