GMC Yukon Denali Electrical System Problems

Source: NHTSA · Updated Aug 13, 2025 · 158 complaints analyzed

Owners have filed 158 complaints with NHTSA about electrical system problems on the GMC Yukon Denali across 16 model years. The 2004 model year has the most (57).

How much does it cost to fix?

Owners who wrote down what they paid or were quoted put the typical electrical system repair on the GMC Yukon Denali at $850, and half of them between $630 and $1,250.

Based on 12 NHTSA complaints about this problem alone that state a repair bill or quote (2006–2019), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.

At what mileage do electrical system problems happen?

Based on 125 complaints that reported the odometer reading.

Under 10k miles4 · 3%
10k–25k miles8 · 6%
25k–50k miles19 · 15%
50k–75k miles32 · 26%
75k–100k miles28 · 22%
100k–150k miles28 · 22%
150k+ miles6 · 5%

How serious are the reports?

Of 158 complaints, 1 mention a crash, 7 a fire, 2 an injury.

GMC Yukon Denali electrical system complaints by model year

Peak: 2004, with 57 complaints
1999: 3199932000: 332001: 2200122002: 332003: 252003252004: 57572005: 192005192006: 112007: 162007162008: 772009: 3200932011: 222012: 2201222015: 11112016: 3201632017: 11

n = 158 complaints · Source: NHTSA

Model yearElectrical System complaintsShare of that yearMedian miles
2017 Yukon Denali18%152,498
2016 Yukon Denali317%44,000
2015 Yukon Denali1115%64,000
2012 Yukon Denali27%93,142
2011 Yukon Denali22%120,000
2009 Yukon Denali37%16,000
2008 Yukon Denali712%47,928
2007 Yukon Denali1613%93,941
2006 Yukon Denali15%129,474
2005 Yukon Denali1939%68,616
2004 Yukon Denali5752%65,000
2003 Yukon Denali2535%82,000
2002 Yukon Denali310%66,000
2001 Yukon Denali26%15,000
2000 Yukon Denali317%125,000
1999 Yukon Denali311%130,000

When owners reported it

Peak: 2014, with 20 complaints
2002: 220022003: 32004: 320042005: 22006: 1320062007: 192008: 1820082009: 82010: 1120102011: 122012: 420122013: 62014: 202014202015: 62016: 220162017: 82018: 1020182019: 82020: 120202022: 12024: 12024

n = 158 complaints · Source: NHTSA

Related recalls (1)

Electrical system:12v/24v/48v battery:cablesMar 17, 2001 · NHTSA campaign 01V107000 · 301 vehicles

Model years: 2001

Problem: Vehicle description: sport utility vehicles. Some of these vehicles were built with a misrouted positive battery cable assembly that could come in contact with the steering shaft universal joint.

Risk: Over time this contact could cause a wear-through of the cable assembly convoluted conduit and cable insulation exposing the wire core and resulting in intermittent electrical shorting. This could result in erratic movement of the voltage gage, total battery discharge in a few hours, or the cable insulation and conduct could ignite if enough current is discharged at the point of contact, resulting in an underhood fire.

Fix: Dealers will inspect the positive battery cable for proper routing and re-route the cable in necessary. The cable will also be inspected for wear of the conduit and cable insulation, and will be replaced if necessary. Owner notification began april 23, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact gmc at 1-800-462-8782.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

The contact owns a 2017 GMC Yukon Denali. The contact stated while driving 70 MPH, the trailer brake system service warning light illuminated. The contact stated that the trailer brake system warning light illuminated several times within a minute. The vehicle was not diagnosed or repaired by an…

Received Jan 22, 2024 · NHTSA complaint 11566974

The contact owns a 2015 GMC Yukon Denali. The contact stated that while driving the air condition system was blowing hot air and then became inoperable. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the A/C condenser…

Received Apr 29, 2022 · NHTSA complaint 11462781

Tail lights sometimes work and most of the time does not work. I see hundreds of complaints about this and nothing is being done about it! This will be my first and last time buying a gmc car. This is very dangerous and a very expensive problem to have!

Received Jan 26, 2020 · NHTSA complaint 11302141

TL* THE CONTACT OWNS A 2015 GMC YUKON DENALI. WHILE REVERSING THE VEHICLE, THE CONTACT WAS INFORMED THAT THE BRAKE LIGHTS WERE NOT ILLUMINATING. HOWEVER, WHEN THE VEHICLE WAS IN DRIVE, THE BRAKE LIGHTS ILLUMINATED. ALSO, WHEN THE CONTACT DEPRESSED THE BRAKE PEDAL TO SLOW OR STOP THE VEHICLE, THE…

Received Aug 21, 2019 · NHTSA complaint 11245472

At less than 3 years old and 60k miles, the following has occurred at different times up until now: overall electrical malfunction including display illumination failure (display goes completely black and/or dim while driving - cannot see speedometer etc. This has happened multiple times while…

Received Jul 9, 2019 · NHTSA complaint 11230316

Frequently asked questions

Do all GMC Yukon Denalis have electrical system problems?

No. NHTSA has 158 owner complaints about electrical system for the GMC Yukon Denali. Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the GMC Yukon Denali electrical system?

Yes: 1 safety recall list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.

How much does it cost to fix electrical system problems on the GMC Yukon Denali?

Owners report a typical cost of $850 (half paid between $630 and $1,250), from 12 complaints that state a repair bill or quote, in 2026 dollars.

Other GMC Yukon Denali problems

See all GMC Yukon Denali problems.