This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
full bulletin at NHTSA ↗2015 GMC Yukon electrical problems
moderate Owners of the 2015 GMC Yukon have filed 66 NHTSA complaints about the electrical, typically surfacing around 63,000 miles at roughly $850 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
Failure mileage
Complaints
66
Recalls
0
Avg fix
$850
| Model year | electrical complaints |
|---|---|
| 2011 Yukon | 15 |
| 2012 Yukon | 9 |
| 2013 Yukon | 6 |
| 2014 Yukon | 3 |
| 2015 Yukon (this page) | 66 |
| 2016 Yukon | 46 |
| 2017 Yukon | 17 |
| 2019 Yukon | 8 |
1crash
1fire
When does it fail?
Of the 66 electrical complaints filed for the 2015 GMC Yukon, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 66 electrical complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Among the 19 model years of GMC Yukon in our records for electrical problems, this one ranks #2 by owner-complaint volume.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
full bulletin at NHTSA ↗This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
full bulletin at NHTSA ↗This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
full bulletin at NHTSA ↗This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2015 GMC Yukon electrical system is plagued by multiple failure modes, with the rear LED tail light assembly being the most chronic: owners report both driver and passenger side lights failing intermittently or completely, often without dashboard warning. Failures occur as early as 18,000 miles and as late as 113,000 miles, with the entire assembly ($500–$1500 per side) needing replacement since individual LED circuits cannot be repaired. Dealerships acknowledge this as a known issue and confirm high failure rates; some replacement assemblies fail again within months.
More serious faults include uncontrolled engine behavior with multiple warning lights flashing while the vehicle lurches forward and back, intermittent stalling during driving or turning (sometimes in traffic), and complete electrical shutdown where only wiggling the negative battery cable restores power. In critical cases, steering wheels have locked and engines shut down while the vehicle was in motion with children aboard. Owners also report fire hazards: wiring harness for the wireless charging pad shorted and caught fire, and radiator fan wiring burned open while driving. A vacuum brake booster defect robs drivers of brake assist; GM covers vehicles under 70,000 miles but refuses warranty coverage above that threshold despite acknowledging the problem. Air conditioning condenser failures are attributed to poor engineering that causes excessive vibration and cracking. Backup camera image is too blurry at night to meet NHTSA safety guidelines, and rear power door locks fail intermittently, trapping passengers inside.
Multiple dealership visits and diagnostic tests often fail to isolate root causes, leaving owners with vehicles that are unsafe to drive and extremely costly to repair.
Same GMC Yukon electrical reports on nearby years: 2016 · 2017
Failure modes owners describe
Rear tail/brake light LED assembly failure
LED tail light assemblies fail intermittently or completely, leaving drivers unaware since there is no dashboard warning. The internal circuit board or solder connection deteriorates, causing brake lights and running lights to stop working. Both lights on the same vehicle often fail sequentially within weeks or months. Owners report dealerships acknowledge this as a known issue. The entire assembly must be replaced at high cost ($500-$1500 per side depending on trim); individual LED elements are not field-serviceable.
When: Typically between 48,000 and 113,000 miles; failures also reported as early as 18,000 miles and up to 3 years after purchase
Symptoms owners cite: Rear brake lights fail to illuminate when brake pedal depressed; Running lights inoperative; Lights work intermittently, on and off randomly without pattern; No dashboard warning when lights fail; Both driver and passenger side lights fail in sequence; Lights may temporarily work again after impact (closing hatch, hitting bump) before failing permanently
Repairs/costs cited: Full tail light assembly replacement required; costs range $500–$1500 per assembly depending on trim. Dealers stock parts but acknowledge high failure rate; some replacement assemblies fail again within 1 year. Third-party repair shops have emerged specifically for this issue, offering lifetime warranties.
Recalls/TSBs owners mention: GMC issued special coverage program N182180270 for some model years with 6-year/72,000-mile warranty, but many owners fell outside this window and were not notified in time. GMC has acknowledged the problem in forums and to dealerships but refuses to issue a blanket recall. Some owners were offered extended warranty coverage after escalation.
Intermittent electrical system faults with uncontrollable engine behavior
Multiple warning lights flash simultaneously (trailer brake service, park assist, stability control, etc.) while the engine revs and throttles erratically, preventing the driver from maintaining steady speed. The vehicle lurches forward and backward uncontrollably. Fuse box and battery cable replacements by dealerships have not resolved the issue; diagnostic testing has been inconclusive despite multiple dealer visits.
When: Early in vehicle ownership; one case reported within weeks of purchase
Symptoms owners cite: Multiple service warning lights flash continuously and rapidly; Engine revs up and slows down without driver input; Vehicle lurches forward and backward despite steady throttle input; Speed and RPM cannot be controlled; Vehicle appears to apply brakes intermittently without command
Repairs/costs cited: Dealership initially replaced entire fuse box and all fuses, then battery cable assembly; neither resolved the issue. Vehicle towed multiple times for ongoing diagnostic testing with no root cause identified.
Engine stalling while driving with no warning
Engine shuts down unexpectedly during normal driving, including while turning across traffic or merging. Occurs without warning indicators on the dashboard. Issue is intermittent and dealers cannot replicate it during diagnostic testing. One incident resulted in a crash when the vehicle stalled in reverse. After multiple failed diagnostics, one dealership suspected a wiring harness issue (based on experience with a different model) and replaced a wire, after which the owner reported temporary confidence in the fix. Later electrical faults returned.
When: Reported as early as 9,000 miles; owner had vehicle 41 days in shop over first 3 months of ownership
Symptoms owners cite: Engine stalls without warning while driving; Stalls while executing turns in traffic; Stalls during reverse operation; Vehicle unresponsive to throttle input on separate occasions; No warning light or indication before stall
Repairs/costs cited: Multiple dealer diagnostic visits (at least 6) could not identify cause. One dealer eventually replaced a wiring harness based on intuition from experience with a different model (Sierra pickup 5.3L vs. owner's 6.2L). Temporary resolution claimed but subsequent electrical faults returned.
Backup camera poor image quality
Backup camera display is blurry and lacks adequate resolution, especially at night. Image is so poor that it is unsafe to rely upon, despite NHTSA guidelines requiring a camera system to clearly display a 10×20 foot zone behind the vehicle. Daytime image is usable but still substandard compared to older GMC Denali models (2011). GMC states the system is 'working normally' and refuses to address the issue.
When: Present from new on 2015 Denali model
Symptoms owners cite: Backup camera image extremely blurry; Poor resolution especially at night; Cannot see 20 feet clearly behind vehicle even in well-lit street conditions; Daytime image blurry but marginally usable
Recalls/TSBs owners mention: GMC states system is 'working normally' and declines to repair or replace the camera. No TSB or recall issued.
Wireless charging pad wiring fire hazard
Wiring harness for the wireless charging pad, routed through the center console door hinge, shorts out when the console is opened or closed. Resulted in a fire that produced smoke and burned/melted plastic components inside the hinge. Children were in the vehicle at the time; occupants had to evacuate. This is reportedly a known manufacturing defect that dealers and mechanics are familiar with but charge hundreds of dollars to repair without acknowledging it as a manufacturer fault.
When: Occurred while parking; vehicle had been inspected multiple times and passed state inspection despite the known issue
Symptoms owners cite: Smoke and strong burning plastic smell from center console area; Fire visible in hinge area; Shorts occur when opening or closing center console door
Repairs/costs cited: Requires wiring harness replacement; dealers charge hundreds of dollars. Multiple inspections and state compliance checks did not catch or address the issue.
Key fob detection failure / vehicle immobilization
Vehicle fails to recognize key fob presence, making the vehicle unable to shift out of gear. Vehicle becomes immobilized even though the driver is present and the fob is present. Occurs after the vehicle is already in motion or parked. Dealership acknowledged this as a known issue. Major safety hazard if it occurs while driving.
When: Reported after initial stalling repairs; vehicle had been in shop multiple times
Symptoms owners cite: Key fob not detected by vehicle system; Vehicle in gear and cannot move; Vehicle immobilized despite driver present with key fob
Vacuum brake booster failure
Brake booster pump becomes faulty, resulting in loss of brake assist. This is a known problem that GM has acknowledged and covered under warranty for vehicles under 70,000 miles. Owners over that mileage threshold are responsible for full repair cost ($500+). This affects braking safety and control.
When: One case reported at high mileage (owner exceeded 70,000-mile warranty threshold)
Symptoms owners cite: Loss of brake booster function; Brake pedal becomes hard to press
Repairs/costs cited: $500 repair bill cited for one owner; others mention brake pump replacement costs around $500–$1500 depending on extent
Recalls/TSBs owners mention: GM acknowledges the problem and has a warranty extension program covering repairs on vehicles up to 70,000 miles. Vehicles beyond this threshold are not covered despite the known defect.
AC condenser failure with engineering defect
AC condenser fails due to poor engineering; the part vibrates and rattles excessively, causing cracks that split the condenser and lead to cooling system failure. Dealer confirmed the defect is due to incorrect engineering. Condenser was on backorder due to supply shortage.
When: Failure at approximately 70,000 miles
Symptoms owners cite: Vent control stops working; AC and heat cease functioning; Condenser cracked and leaking
Repairs/costs cited: Condenser replacement required; part was on national backorder
Recalls/TSBs owners mention: GM provided warranty extension from 36,000 to 60,000 miles but did not issue a recall. Owner waited months for follow-up response that never came.
Intermittent rear power door lock failure
Rear power door locks become inoperative at times, failing to unlock via keyless entry or the master switch in the driver's cabin. Children cannot open rear doors and must be manually released by an adult. In an emergency evacuation, rear passengers (including children) would be unable to exit the vehicle unassisted. Child lock feature is rendered unusable.
When: Timing not specified
Symptoms owners cite: Rear power locks inoperative intermittently; Keyless entry fails to unlock rear doors; Master switch in cabin does not control rear locks; Rear passengers (children) trapped inside unable to open doors
Door latch electrical fault causing open door not detected
Door latching mechanism fails to properly register door closure; vehicle computer thinks door is closed when it is actually open. Occurred twice in one day. Major safety risk if vehicle is driven with open door and occupants (especially children in back seat) unaware. No warning light alerts driver to open door.
When: Occurrence timing not specified
Symptoms owners cite: Door open but vehicle computer registers door as closed; No warning indicator on dashboard; Door can swing open while driving without driver knowledge
Radiator fan wiring fire
Wiring to the radiator cooling fan catches fire while vehicle is being driven. Owner smells smoke, pulls over, opens hood, and observes open flames on the fan wiring. This is a critical fire hazard.
When: Occurred while driving
Symptoms owners cite: Smoke smell while driving; Open flames visible on radiator fan wiring when hood opened
Engine stall with negative battery cable connection issue
Engine repeatedly shuts off while driving. When the engine dies, all electrical power is lost until the negative battery cable is manually wiggled or loosened and reconnected. This suggests a poor connection at the battery negative terminal that is intermittent. Occurred at least 50 times over 2 years of ownership. Battery and negative cable have been replaced by dealership without fixing the issue.
When: Repeated over 2-year ownership period; at least 50 stall events
Symptoms owners cite: Engine shuts off without warning while driving; Complete electrical system loss when engine dies; Electrical power restored temporarily by loosening/tightening negative cable at battery; Stalls occur intermittently
Repairs/costs cited: Dealership replaced battery and negative cable; issue persists
Steering wheel lock and engine shutdown while driving
While driving with children in the vehicle in a school zone, the steering wheel suddenly locked and the engine shut off. Extremely dangerous situation that could have resulted in a serious accident. Accompanied by other intermittent electrical faults (tail light flicker, interior light flicker, theft deterrent activation, dash resets).
When: Occurred while actively driving in a school zone
Symptoms owners cite: Steering wheel locks while driving; Engine shuts down while driving; Tail lights flicker randomly; Interior lights flicker; Theft deterrent system activates randomly; Dashboard systems reset randomly
Headlight sealed unit condensation / moisture inside lens
Condensation/moisture accumulates inside sealed headlight lens with no visible cracks or holes. Similar to defective house windows, manufacturers typically replace these units. Owner cites this as a quality/durability issue alongside other electrical failures.
When: Timing not specified
Symptoms owners cite: Condensation visible inside sealed headlight; No external cracks or holes visible
Repairs/costs cited: Sealed headlight replacement quoted at $1500
Multiple intermittent electrical faults (air intake, transmission, camera, USB, heated seats)
Air intake stays on after shutting off vehicle (appears stuck in auto start mode); transmission hesitates and struggles to shift gears; rear camera works intermittently and may require opening/closing to restore function; USB ports work intermittently; front heated seats only function on top setting. Local mechanic unable to diagnose.
When: Timing not specified
Symptoms owners cite: Air intake remains on after engine shutdown; Transmission hesitation and shifting difficulty; Rear camera intermittent operation (may temporarily fix by opening/closing); USB port intermittent operation; Heated seat function limited (top setting only)
Repairs/costs cited: Tail lights already replaced due to intermittent failure
Touchscreen display unresponsive areas
Portions of the touchscreen infotainment display are unresponsive to touch input. Specific example: toggle buttons to adjust time do not work, making it impossible to set the clock. Often occurs alongside brake light failures.
When: Timing not specified
Symptoms owners cite: Touchscreen unresponsive in certain areas; Toggle buttons for time adjustment non-functional; Display otherwise operational
Synthesized from 66 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
Both brake lights went out. Dealer said had to replace entire fixture. Not covered under bumper to bumper extended warranty purchased. Safety hazard that many other 2015 yukon owners have experienced. Trim/seal appliqus around door windows also coming off and also not co weed under b2b warranty. Shottily made vehicle.
The vehicle's tail light assembly on both the drivers and passenger's sides are defective. The solder does not hold and the vehicle's brake lights and running lights fail intermittently. The driver is totally unaware of this major issue that the brake lights are not working. In researching this problem on the internet there are numerous customers of GMC's yukon's and denali's who are…
Had electrical trouble with your 2015 GMC Yukon?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2015 GMC Yukon?
It's a documented issue but not catastrophic. 66 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Across the 42 complaints that reported odometer mileage, most electrical failures cluster between 47,000 and 80,000 miles, with the median around 63,000. A quarter of owners report trouble before 47,000; a quarter make it past 80,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2015/GMC/Yukon.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.