The 2015 GMC Yukon XL with the 5.3L V8 (L83 generation) is a solid full-size SUV platform, but suffers from a known catastrophic engine defect involving Active Fuel Management (AFM) lifter failure that can destroy the engine, plus transmission oil cooler leaks that risk both fluid systems.
AFM Lifter Failure Leading to Engine Damage
Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Ticking or tapping noise from engine, especially on cold start, Check engine light with misfire codes (P0300 series), Reduced power or rough idle, Metal shavings in oil during changes, Catastrophic failure: loss of compression, valve train carnage
Fix: AFM system uses collapsing lifters on cylinders 1, 4, 6, 7 to shut them off for fuel economy. These lifters fail, causing bent pushrods, damaged camshaft lobes, and wiped bearings. Early catch requires lifter replacement (8-12 hours). Late catch means full engine rebuild or replacement (20-30 hours). Many owners opt for AFM delete kit during repair to prevent recurrence, adding 4-6 hours.
Estimated cost: $2,500-9,000
Transmission Oil Cooler Line Leak into Radiator
Common · high severity
Typical onset: 70,000-110,000 mi
Symptoms: Transmission fluid in coolant reservoir (strawberry milkshake appearance), Engine coolant in transmission (burnt fluid, erratic shifting), Overheating transmission or engine, Transmission slipping or failure to engage gears
Fix: Internal transmission cooler in radiator fails, allowing cross-contamination of coolant and ATF. Requires radiator replacement, transmission flush (sometimes full rebuild if contamination is severe), all cooler lines. If caught early: radiator and flush (4-6 hours). If delayed: transmission rebuild adds 12-18 hours. External auxiliary cooler often installed as insurance.
Estimated cost: $1,200-5,500
Transmission Mount Failure
Occasional · medium severity
Typical onset: 80,000-130,000 mi
Symptoms: Clunk when shifting from Park to Drive or Reverse, Excessive vibration at idle in gear, Visible sagging or torn rubber on mount, Driveline shudder during acceleration
Fix: Rear transmission mount deteriorates, allowing excessive driveline movement. Straightforward replacement, but requires supporting transmission safely. 1.5-2.5 hours labor.
Estimated cost: $250-450
Water Pump Failure
Occasional · medium severity
Typical onset: 90,000-150,000 mi
Symptoms: Coolant leak from front of engine, Squealing or grinding noise from accessory belt area, Engine overheating, Visible coolant residue below water pump
Fix: Water pump bearing or seal fails. Common wear item but critical. Replacement includes draining coolant, removing serpentine belt and accessories. Good time to do thermostat. 3-4 hours labor.
Estimated cost: $450-750
EVAP Vent Valve Solenoid Failure
Occasional · low severity
Symptoms: Check engine light with P0449 or P0446 codes, Difficulty fueling (pump clicks off repeatedly), Fuel smell around vehicle, Failed emissions test
Fix: Vent valve solenoid on EVAP canister fails (often due to corrosion or carbon buildup). Located near spare tire under vehicle. Easy access, 0.5-1 hour labor.
Estimated cost: $150-300
AC Condenser Leak
Occasional · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: AC blows warm air, AC works intermittently, Visible oil residue on condenser (front of radiator), Low refrigerant on recharge attempts
Fix: Condenser mounted in front of radiator is prone to road debris damage and corrosion. Requires removal of front bumper cover for access, evacuate and recharge AC system. 3-5 hours labor depending on additional damage.
Estimated cost: $600-1,100
Owner tips
Disable AFM with a Range AFM disabler device or tuning to prevent lifter failure—best $200 insurance policy for this engine
Install external transmission cooler ($300-500) if towing regularly or living in hot climate—takes load off internal radiator cooler
Use full synthetic oil (0W-20 or 5W-30) and change every 5,000 miles maximum—AFM system is hard on oil
Inspect transmission fluid color every oil change—catch pink coolant contamination before transmission dies
Check coolant for oily film or transmission smell—early warning of cooler failure
Buy one if you can afford to disable AFM immediately and budget for potential transmission cooler failure—otherwise, the repair lottery isn't worth the gamble past 80k miles.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING · 19V761000
2019-10-24
General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.
Consequence: Unintended activation of the driveline-protection system will cause unintended braking on the wheel on the opposite side of the failed sensor, causing the vehicle to pull to one side unexpectedly, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM · 19V645000
2019-09-06 · PE18012
General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.
Consequence: As the vacuum level drops, the brake assist decreases, increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began October 8, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192268490.
STEERING:ELECTRIC POWER ASSIST SYSTEM · 18V586000
2018-09-07
General Motors LLC (GM) is recalling certain 2015 Chevrolet Silverado 1500, Tahoe and Suburban, GMC Sierra 1500 and Yukon, and Cadillac Escalade vehicles. Electric power steering (EPS) assist may be lost momentarily, followed by a sudden return of EPS assist.
Consequence: If EPS assist is lost and then suddenly returns, the driver may have difficulty steering the vehicle, especially at low speeds, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will update the EPS module software, free of charge. The recall began October 12, 2018. Owners may contact Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020 and GMC customer service at 1-800-462-8782. GM's number for this recall is 18289.
AIR BAGS:FRONTAL · 17V437000
2017-07-10
General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.
Consequence: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.
Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on August 4, 2017. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 17287.
AIR BAGS:FRONTAL · 16V651000
2016-09-08
General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.
Consequence: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.
Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on October 13, 2016. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 16007.
STEERING:ELECTRIC POWER ASSIST SYSTEM · 14V719000
2014-11-10
General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, and Yukon XL vehicles, equipped with electric power steering (EPS). Due to a problem with the EPS module, the affected vehicles may experience a sudden loss of power steering assist during vehicle operation.
Consequence: An unexpected loss of power steering increases the risk of a crash.
Remedy: GM will notify owners, and dealers will replace the power steering assist motor kit, free of charge. The recall began on November 17, 2014. Owners may contact GM customer service at 1-800-222-1020 (Chevrolet), or 1-800-462-8782 (GMC). GM's number for this recall is 14743.
AIR BAGS:SIDE/WINDOW · 14V451000
2014-07-23
General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Suburban, Suburban LTZ, Tahoe, Tahoe LTZ, GMC Yukon, and Yukon XL Denali vehicles manufactured on May 13, 2014. The affected vehicles were assembled with a roof rail air bags (RRAB) that were not reinforced at the points were the bags contact the hardware used to attach the roof carrier.
Consequence: During deployment, the RRAB may be punctured or torn by the roof carrier hardware, reducing its performance and increasing the risk of occupant injury in the event of a crash.
Remedy: GM will notify owners, and dealers will replace the roof carrier attaching hardware, free of charge. The recall is expected to begin in early September 2014. Owners may contact GM customer service at 1-800-222-1020 (Chevrolet) or 1-800-462-8782 (GMC). GM's number for this recall is 14359.
POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE) · 14V374000
2014-06-27
General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Silverado and GMC Sierra vehicles, and model year 2015 GMC Yukon and Chevrolet Suburban and Tahoe vehicles. In the affected vehicles, an electrical signal short may cause the transfer case to shift to neutral without the driver's input.
Consequence: If the transfer case switches to neutral while the vehicle is parked and the parking brake is not in use, the vehicle may roll away increasing the risk of injury to bystanders. If the transfer case switches to neutral while the vehicle is being driven, the vehicle would lose drive power, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will re-program the software in the transfer case control module, free of charge. The recall began in early August 2014. Owners may contact General Motors customer service at 1-800-222-1020 (Chevrolet), or 1-800-462-8782 (GMC). GM's number for this recall is 14192.
POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES · 14V152000
2014-03-31
General Motors LLC (GM ) is recalling certain model year 2014 Chevrolet Silverado Light Duty Regular Cab, Double Cab, and Crew Cab 1500 series and model year 2015 Suburban and Tahoe; GMC model year 2014 Sierra Regular Cab, Double Cab, and Crew Cab 1500 Series and model year 2015 Yukon and Yukon XL vehicles equipped with a 6-Speed Automatic Transmission (feature code MYC). The subject vehicles may have a transmission oil cooler line that is not securely seated in the fitting.
Consequence: If the line is not securely seated and transmission oil leaks from the fitting, the oil could contact a hot surface and cause a vehicle fire.
Remedy: GM will notify owners, and dealers will inspect the transmission oil cooler line connection and repair the vehicles, as needed, free of charge. The recall began on May 19, 2014. Owners may contact Chevrolet at 1-866-694-6546 or GMC owners may contact GMC at 1-866-996-9463. GM's number for this recall is 14121.
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM · 14V007000
2014-01-13
General Motors is recalling certain 2014 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles, and 2015 model year Cadillac Escalade and Escalade ESV; Chevrolet Silverado HD; and GMC Sierra HD, Yukon, and Yukon XL, equipped with a 4.3L engine or 5.3L engine.
Consequence: The overheated exhaust components may melt nearby plastic parts and may result in an engine fire.
Remedy: General Motors will notify owners, and dealers will reprogram the engine control module, free of charge. The recall began on January 16, 2014. Owners may contact Chevrolet at 1-800-222-1020 and GMC at 1-800-462-8782. General Motors' number for this recall is 14008.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2015 GMC Yukon XL 5.3L V8 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.