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I'm looking for an engine wiring harness diagram for a 2012
I'm looking for an engine wiring harness diagram for a 2012 GMC sierra Denali L9h 6.2 ! they seem to have a different plug configuration than anything I can find ? … read more
Eric
Eric
Retired
N/A
37,428 satisfied customers
I have a 2012 Yukon Denali w/300 songs on the HDD. I am
I have a 2012 Yukon Denali w/300 songs on the HDD. I am trading the 2012 for a 2019 Yukon Denali. Is there a way to download the 2013 material to a memory stick or, better yet, upload to the 2019 syst… read more
Steve
Steve
Master's Degree
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Steve. I have denali 2012, cooling fan works on low speed
I have denali 2012, cooling fan works on low speed only what could be the problem … read more
Mike S.
Mike S.
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Vocational, Technical or Trade Scho
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My alarm system keeps going off after I lock the truck. No I
My alarm system keeps going off after I lock the truck … read more
JFN1
JFN1
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My sirius xm radio keeps dropping signal. Sirius says it
my sirius xm radio keeps dropping signal. Sirius says it isnt them and gmc says it isnt the equipment. So who is right? … read more
Dan
Dan
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Vocational, Technical or Trade Scho
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2003 GMC Yukon Denali has heat in the back from it's climate
2003 GMC Yukon Denali has heat in the back from it's climate control in auto, but the front in auto will only blow cold air from the dash vents.… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
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GMC 2001 Denali, steering wheel volume adjuster control is a
GMC 2001 Denali, steering wheel volume adjuster control is a littel loose and if you touch it, volume shoots up very loud. also when you turn steering wheel durring a turn the volume can shoot up loud… read more
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David Craig
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I just bought a 2012 GMC Yukon Denali Xl used and for safety
I just bought a 2012 GMC Yukon Denali Xl used and for safety I put the safety brake but I don't see the where can I release it know I don't know if it's broken or what … read more
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I have a 2012 GMC 2500 HD denali and the serice traction
I have a 2012 GMC 2500 HD denali and the serice traction control keeps coming on and then goes off. It usually happens when it is wet outside or foggy… read more
Gm Tech (Cam)
Gm Tech (Cam)
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Vocational, Technical or Trade Scho
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GM Yukon Denali XL: I had a 3rd party fix my 2005 GMC Yukon
I had a 3rd party fix my 2005 GMC Yukon Denali XL factory radio. I now need to program to the vehicle. Do you know how to get the unlock code to reprogram to my vehicle? The dealer wants to charge me … read more
Gary
Gary
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Vocational, Technical or Trade Scho
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GMC Yukon Denali: I have taken the top cover that has the list
I have taken the top cover that has the list of fuses, I have a 2012 GMC Yukon Denali, it is does not list HTD STR/Whl 10A, but I have a heated steering wheel. 48 reflects AUX-HVAC-IGN 10 A?… read more
Eric
Eric
Retired
N/A
37,428 satisfied customers
GM yukon xl denali: Hello.- I have a yukon denali xl 2004 and
Hello.- I have a yukon denali xl 2004 and my battery goes dead, every single day we have to recharge it and when finally I can drive the car my seat goes crazy, my ac and my radio. any help… read more
Virtual Wrench
Virtual Wrench
Owner of LJ Auto Repair 37 years
Associate Degree
14,420 satisfied customers
GMC Yukon XL 1500 Denali: I have a 04 yukon denali. I am having
I have a 04 yukon denali. I am having an issue with the instrument panel, climate controls and stereo. the speedometer and voltmeter have quit working or will work sometimes intermittently, climate co… read more
BOBBYSS
BOBBYSS
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Associate Degree
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GM denali: 2005 Denali replaced ride control compressor and
2005 Denali replaced ride control compressor and shocks 2012.Everything worked great til this wked.No leak in shocks.Air still in them.Compressor doesn t run and service ride control lite comes on eve… read more
Pete
Pete
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General auto certifications
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have 2012 duramax gmc denali maybe 10000 kms def derate light
have 2012 duramax gmc denali maybe 10000 kms def derate light went on and its full of def . does a guy have to take it to dealer or can aguy do something himself… read more
Pete
Pete
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General auto certifications
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GMC Yukon XL 1500 Denali: I have a 2005 gmc yukon denali xl.
I have a 2005 gmc yukon denali xl. It has the stereo with no navigation. about 6 of the setting buttons are not illuminated. I have been told I need to replace the whole radio? Wouldn't there be a way… read more
Don - Mo Lurch
Don - Mo Lurch
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GMC Sierra Denali Classic-HD: I have 2012 GMC DENALI-HD crewcab
I have 2012 GMC DENALI-HD crewcab shortbed 4x4 Duramax 6.6 LML eng I got it last year in July I did not here this sound until after I took it in for its first oil change. Now I can here a matalic kind… read more
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GMC GMC Denali XL: what is the best brand of " chip " to buy
what is the best brand of " chip " to buy for a 2012 Denali 6.2L ? I tow a #7000 lb trailer and could use the extra power in mountain terrain. Thanks.… read more
tripletauto
tripletauto
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,912 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,589 satisfied customers

GCM master tech over 25 years

Dave Nova

Dave Nova

GMC Technician

929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

GMC Technician

766 satisfied customers

16 years of experience

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

248 satisfied customers

GM, GMC, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics

Mike S.

Mike S.

ASE Certified Technician

241 satisfied customers

GMC N.A.I.S.E. Certified Auto-Mechanic

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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